Publications Prof. Dr. Werner Keune
2013
| Henning Höpfner, Carola Fritsche, Arne Ludwig, Astrid Ludwig, Frank Stromberg, Heiko Wende, Werner Keune, Dirk Reuter, Andreas D. Wieck, Nils C. Gerhardt, and Martin R. Hofmann Spin relaxation length in quantum dot spin LEDs Phys. Status Solidi C (2013) 1-4 DOI: 10.1002/pssc.201200689 |
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H. Höpfner, C. Fritsche, Arne Ludwig, Astrid Ludwig, F. Stromberg, H. Wende, W. Keune, D. Reuter, A. D. Wieck, N. C. Gerhardt and M. R. Hofmann |
2012
| Henning Höpfner, Carola Fritsche, Arne Ludwig, Astrid Ludwig, Frank Stromberg, Heiko Wende, Werner Keune, Dirk Reuter, Andreas D. Wieck, Nils C. Gerhardt, and Martin R. Hofmann Magnetic field dependence of the spin relaxation length in spin light-emitting diodes Appl. Phys. Lett. 101 (2012) 112402 DOI: 10.1063/1.4752162 |
| C. Antoniak, H. C. Herper, Y. N. Zhang, A. Warland, T. Kachel, F. Stromberg, B. Krumme, C. Weis, K. Fauth, W. Keune, P. Entel, R. Q. Wu, J. Lindner, and H. Wende Induced magnetism on silicon in Fe3Si quasi-Heusler compound Phys. Rev. B 85 (2012) 214432 DOI: 10.1103/PhysRevB.85.214432 |
| A. Warland, C. Antoniak, M. Darbandi, C. Weis, J. Landers, W. Keune, and H. Wende Effect of silica capping on the oxidation of Fe3O4 nanoparticles in dispersion revealed by x-ray absorption spectroscopy Phys. Rev. B 85 (2012) 235113 DOI: PhysRevB.85.235113 |
| Masih Darbandi, Frank Stromberg, Joachim Landers, Nathalie Reckers, Biplab Sanyal, Werner Keune and Heiko Wende Nanoscale size effect on surface spin canting in iron oxide nanoparticles synthesized by the microemulsion method J. Phys. D: Appl. Phys. 45 (2012) 195001 |
| Rashid Gareev, Frank Stromberg, Matthias Buchmeier, Werner Keune, Christian Back, and Heiko Wende Antiferromagnetic Coupling in Combined Fe/Si/MgO/Fe Structures with Controlled Interface Diffusion Appl. Phys. Express 5 (2012) 033003 DOI: 10.1143/APEX.5.033003 |
| V. Uzdin, A. Vega, A. Khrenov, W. Keune, V.E. Kuncser, S. Jiang, and S.D. Bader Noncollinear Fe spin structure in (Sm-Co)/Fe exchange-spring bilayers: layer-resolved 57Fe Mössbauer spectroscopy and electronic structure calculations Phys. Rev. B 85 (2012) 024409 |
| B. Sahoo, W. Keune, V. Kuncser, and R. Röhlsberger As-Grown Superconducting MgB2 Thin Films Prepared at Extreme Deposition Conditions Supercond. Sci. Technol. 25 (2012) 015004 |
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W. Keune (invited) |
| H. Höpfner, M. Li, Arne Ludwig, Astrid Ludwig, F. Stromberg, H. Wende, W. Keune, D. Reuter, A. D. Wieck, N. C. Gerhardt, and M. R. Hofmann Room temperature spin relaxation in quantum dot based spin-optoelectronic devices Proceedings of SPIE 8260 (2012) 82600A (Photonic-West 2012) |
| B. Roldan Cuenya, L. K. Ono, J. R. Croy, K. Paredis, A. Kara, H. Heinrich, J. Zhao, E. E. Alp, A. T. DelaRiva, A. Datye, and W. Keune Size-dependent evolution of the atomic vibrational density of states and thermodynamic properties of isolated Fe nanoparticles Phys. Rev B 86 (2012) 165406 |
2011
| S.I. Makarov, B. Krumme, F. Stromberg, C. Weis, W. Keune, and H. Wende Improved interfacial local structural ordering of epitaxial Fe3Si(001) thin films on GaAs(001) by a MgO(001) tunneling barrier Appl. Phys. Lett. 99 (2011) 141910 DOI: 10.1063/1.3646390 |
| Henning Soldat, Mingyuan Li, Nils C. Gerhardt, Martin R. Hofmann, Arne Ludwig, Astrid Ebbing, Dirk Reuter, Andreas D. Wieck, Frank Stromberg, Werner Keune, and Heiko Wende Room temperature spin relaxation length in spin light-emitting diodes Appl. Phys. Lett. 99 (2011) 051102 DOI: 10.1063/1.3622662 |
| F. Stromberg, C. Antoniak, U. von Hörsten, W. Keune, B. Sanyal, O. Eriksson and H. Wende Textured growth of the high moment material Gd(0001)/Cr(001)/Fe(001) J. Phys. D: Appl. Phys. 44, 265004 (2011) DOI:10.1088/0022-3727/44/26/265004 |
| A. Ludwig, R. Roescu, A.K. Rai, K. Trunov, F. Stromberg, M. Li, H. Soldat, A. Ebbing, N.C. Gerhardt, M.R. Hofmann, H. Wende, W. Keune, D. Reuter and A.D. Wieck Electrical spin injection in InAs quantum dots at room temperature and adjustment of the emission wavelength for spintronic applications Journal of Crystal Growth 323 (2011) 376 DOI: 10.1016/j.jcrysgro.2010.09.087 |
| V. Kuncser and W. Keune Step-shaped angular spin distribution in layered systems by 57Fe Mössbauer Spectroscopy: A general treatment J. Magn. Magn. Mater. 323 (2011) 2196 |
| B. Sahoo, K. Schlage, J. Major, U. von Hörsten, W. Keune, H. Wende, and R. Röhlsberger Preparation and characterization of ultrathin stainless steel films Intern. Conf. on Magnetic Materials (ICMM), Kalkutta, India, Oct. 2010 AIP Conf. Proc. 1347 (2011) 57 |
| B. Sahoo, W. Keune, V. Kuncser, and R. Röhlsberger Metallurgical Phases and Their Magnetism at the Interface of Nanoscale MgB2/Fe Layered Structures J. Phys.: Condens. Matter 23 (2011) 475702 |
2010
| E. Schuster, R. A. Brand, F. Stromberg, F.-Y. Lo, A. Ludwig, D. Reuter, A. D. Wieck, S. Hövel, N. C. Gerhardt, M. R. Hofmann, H. Wende, and W. Keune Epitaxial growth and interfacial magnetism of spin aligner for remanent spin injection: [Fe/Tb]n/Fe/MgO/GaAs-light emitting diode as a prototype system J. Appl. Phys. 108, 063902 (2010) DOI 10.1063/1.3476265 |
| C. Weis, B. Krumme, H. C. Herper, F. Stromberg, C. Antoniak, A. Warland P. Entel, W. Keune, and H. Wende Magnetic properties of ultrathin Fe3Si films on GaAs(001) J. Phys.: Conf. Ser. 200, 072105 (2010) DOI 10.1088/1742-6596/200/7/072105 |
| V. Kuncser, W. Keune, U. von Hörsten, G. Schinteie, N. Stefan, P. Palade, and G. Filoti Interfacial atomic diffusion in AF/Fe/Cu/Fe (AF = Fe50Mn50 and Ir50Mn50) multilayer systems Thin Solid Films 518 (2010) 5981 |
| V. Kuncser, W. Keune, U. von Hörsten, and G. Schinteie Interlayer magnetic coupling in exchange bias and spin valve structures with Fe-Mn and Ir-Mn antiferromagnetic layers J. Optoelectronics and Advanced Materials 12 (2010) 1385 |
2009
| B. Krumme, C. Weis, H. C. Herper, F. Stromberg, C. Antoniak, A. Warland, E. Schuster, P. Srivastava, M. Walterfang, K. Fauth, J. Minár, H. Ebert, P. Entel, W. Keune, and H. Wende Local atomic order and element-specific magnetic moments of Fe3Si thin films on MgO(001) and GaAs(001) substrates Phys. Rev. B 80, 144403 (2009) DOI: 10.1103/PhysRevB.80.144403 |
| S. Hövel, N. C. Gerhardt, M. R. Hofmann, F.-Y. Lo, D. Reuter, A. D. Wieck, E. Schuster, H. Wende, W. Keune Spin-controlled optoelectronic devices Phys. Status Solidi C 6, 436 (2009) DOI: 10.1002/pssc.200880357 |
| Y.-H. Fan, J. Puls, S. Halm, S. Sadofev, F. Seifert, E. Schuster, G. Bacher, W. Keune, and F. Henneberger Laser-induced erasure and reversal of the permanent magnetization in a ferromagnet – dilute magnetic semiconductor hybrid structure Appl. Phys. Lett. 95 (2009) 223502 |
| Kh. Zakeri, J. Lindner, I. Barsukov, R. Meckenstock, M. Farle, U. von Hörsten, H. Wende, W. Keune, J. Rocker, S.S. Kalarickal, K. Lenz, W. Kuch, K. Baberschke, and Z. Frait Erratum: Spin dynamics in ferromagnets: Gilbert damping and two-magnon scattering [Phys. Rev. B 76, 104 (2007)] Phys. Rev. B 80 (2009) 059901 |
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B. Roldan Cuenya, J.R. Croy, L.K. Ono, A. Naitabdi, H. Heinrich, W. Keune, J. Zhao, W. Sturhahn, E.E. Alp, and M. Hu |
| B. Roldan Cuenya, L.K. Ono, J.R. Croy, A. Naitabdi, H. Heinrich, J. Zhao, E.E. Alp, W. Sturhahn, and W. Keune Structure and phonon density of states of supported size-selected 57FeAu nanoclusters: a nuclear-resonant inelastic x-ray scattering study Appl. Phys. Lett. 95 (2009) 143103 |
2008
| F. Stromberg, S. Bedanta, C. Antoniak, W. Keune and H. Wende FeSi diffusion barriers in Fe/FeSi/Si/FeSi/Fe multilayers and oscillatory antiferromagnetic exchange coupling J. Phys.: Condens. Matter 20, 425205 (2008) DOI: 10.1088/0953-8984/20/42/425205 |
| S. Hövel, N. C. Gerhardt, M. R. Hofmann, F.-Y. Lo, A. Ludwig, D. Reuter, A. D. Wieck, E. Schuster, H. Wende, W. Keune, O. Petracic, and K. Westerholt Room temperature electrical spin injection in remanence Appl. Phys. Lett. 93, 021117 (2008) DOI: 10.1063/1.2957469 |
| S. Hövel, N.C. Gerhardt, M.R. Hofmann, F.-Y. Lo, D. Reuter, A.D. Wieck, E. Schuster, W. Keune, H. Wende, O. Petracic, and K. Westerholt Electrical detection of photoinduced spins both at room temperature and in remanence Appl. Phys. Lett. 92, 242102 (2008) DOI: 10.1063/1.2948856 |
| K. Trunov, M. Walterfang, W. Keune, N.K. Utochkina, A. Trunova Structural and hyperfine magnetic properties of Fe3Si thin films grown at low temperature Thin solid films 516 (2008) 6205 |
| B. Roldan Cuenya, W. Keune, R. Peters, E. Schuster, B. Sahoo, U. von Hörsten, W. Sturhahn, J. Zhao, T.S. Toellner, E.E. Alp, and S.D. Bader High-Energy Phonon Confinement in Nanoscale Metallic Multilayers Phys. Rev B 77 (2008) 165410, Selected by Virtual J. of Nanoscale Science and Technology Vol. 17, Issue 16, April 21 (2008) |
| W.A.A. Macedo, B. Sahoo, J. Eisenmenger, M.D. Martins, W. Keune, V. Kuncser, R. Röhlsberger, O. Leupold, R. Rüffer, J. Nogues, Kai Liu, K. Schlage, and Ivan K. Schuller Direct Measurement of Depth-Dependent Fe Spin Structure During Magnetization Reversal in Fe/MnF2 Exchange-Coupled Bilayers Phys. Rev. B 78 (2008) 224401 |
| H. Nagar, N.V. Kulkarni, S. Karmakar, B. Sahoo, I. Banerjee, P.S. Chaudhari, R. Pasricha, A.K. Das, S.V. Bhoraskar, S.K. Date, and W. Keune Mössbauer spectroscopic investigation of nanophase iron oxides synthesized by thermal plasma route Materials Characterization 59 (2008) 1215 |
2007
| Kh. Zakeri, I. Barsukov, N. K. Utochkina, F. M. Römer, J. Lindner, R. Meckenstock, U. von Hörsten, H. Wende, W. Keune, M. Farle, S. S. Kalarickal, K. Lenz, and Z. Frait Magnetic properties of epitaxial Fe3Si/MgO(001) thin films Phys. Rev. B 76, 214421 (2007) DOI: 10.1103/PhysRevB.76.214421 |
| Kh. Zakeri, J. Lindner, I. Barsukov, R. Meckenstock, M. Farle, U. von Hörsten, H. Wende, W. Keune, J. Rocker, S. S. Kalarickal, K. Lenz, W. Kuch, K. Baberschke, and Z. Frait Spin dynamics in ferromagnets: Gilbert damping and two-magnon scattering Phys. Rev. B 76, 104416 (2007) DOI: 10.1103/PhysRevB.76.104416 |
| S. Halm, B. Bacher, E. Schuster, W. Keune, M. Sperl, J. Puls and F. Henneberger Local Spin Manipulation in Ferromagnet-Semiconductor Hybrids Appl. Phys. Lett. 90 (2007) 051916 |
| S. Halm, P. Hohage, E. Neshataeva, F. Seifert, T. Kümmell, E. Schuster, W. Keune, M. Sperl, Y.-H. Fan, J. Puls, F. Henneberger and G. Bacher Incoherent and Coherent Spin Manipulation in Ferromagnet-Dilute Magnetic Semiconductor Hybrids phys. stat. sol. (a) 204 (2007) 191 |
| V.M. Uzdin and W. Keune Atomic Scale Interface Structure in Metallic Superlattices J. Phys.: Condens. Matter 19 (2007) 136201 |
| N. Hayashi, T. Toriyama, T. Yamashiro, I. Sakamoto, F. Stromberg and W. Keune Tunneling-type magnetoresistance Characteristics of Nanosized Fe-Co Granules in α-Al2O3 Synthesized by Ion Implantation J. Appl. Phys. 101 (2007) 104304 |
| V. Kuncser, G. Schinteie, B. Sahoo, W. Keune, D. Bica, L. Vekas and G. Filoti Magnetic Interactions in Water Based Ferrofluids Studied by Mössbauer Spectroscopy J. Phys.: Condens. Matter 19 (2007) 016205 |
| S. Halm, E. Neshataeva, F. Seifert, T. Kümmell, E. Schuster, W. Keune, J. Puls, F. Henneberger and G. Bacher Local Control of Carrier Spin States in a Semiconductor by Microscale Ferromagnetic Wires AIP Conference Proceedings 893 (2007) 1355 |
| F. Seifert, G. Buckting, S. Halm, T. Kümmell, G. Bacher, E. Schuster and W. Keune Magnetic nanostructures for local spin control in semiconductors Superlattices and Microstructures 41 (2007) 93 |
| S. Hövel, N.C. Gerhardt, C. Brenner, M.R. Hofmann, F.-Y. Lo, D. Reuter, A.D. Wieck, E. Schuster and W. Keune Spin-controlled LEDs and VCSELs phys. stat. sol. (a) 204 (2007) 500 |
| B. Roldan Cuenya, A. Naitabdi, E. Schuster, R. Peters, M. Doi and W. Keune Epitaxial growth, magnetic properties, and lattice dynamics of Fe nanoclusters on GaAs(001) Phys. Rev. B 76 (2007) 094403 |
| B. Roldan Cuenya, A. Naitabdi, J. Croy, W. Sturhahn, J. Y. Zhao, E. E. Alp, R. Meyer, D. Sudfeld, E. Schuster and W. Keune Atomic vibrations in metal nanoclusters: Nuclear resonant inelastic x-ray scattering and molecular dynamics calculations Phys. Rev. B 76 (2007) 195422 Virtual Journal of Nanoscale Science & Technology 16, November 26, 2007 |
| R. Peters, W. Keune, E. Schuster, S. Kashiwada, M. Ferhat and K. Yoh Nanoscaled Systems Studied by Mössbauer Spectroscopy: Fe/Tb Multilayer Contacts on InAs(001) Superlattices and Microstructures 41 (2007) 81 |
2006
| B. Roldan Cuenya, W. Keune, W.A. Adeagbo and P. Entel Thermal Stability, Atomic Vibrational Dynamics and Superheating of Confined Interfacial Sn layers in Sn/Si Multilayers Phys. Rev. B 73 (2006) 045311 |
| S. Halm, F. Seifert, T. Kümmell, G. Bacher, E. Schuster, W. Keune, J. Puls and F. Henneberger Manipulation of Exciton Spin States in a Dilute Magnetic Semiconductor by Nanostructured Ferromagnets phys. stat. sol. (c) 3 (2006) 1122 |
| N.C. Gerhardt, S. Hövel, C. Brenner, M.R. Hofmann, F.-Y. Lo, D. Reuter, A. Wieck, E. Schuster, W. Keune, K. Westerholt, S. Halm and G. Bacher Spin Injection light-emitting diode with vertically magnetized ferromagnetic metal contacts J. Appl. Phys. 99 (2006) 073907 |
| M. Walterfang, W. Keune, K. Trounov, R. Peters, U. Rücker and K. Westerholt Magnetic and structural properties of epitaxial c-FeSi films grown on MgO(100) Phys. Rev. B 73 (2006) 214423 |
| V. Kuncser, W. Keune, F. Stromberg, G. Schinteie and G. Filoti Spin Configurations in Exchange Coupled Magnetic Phases Studied by Mössbauer Spectroscopy J. Optoelectr. Adv. Mater. 8 (2006) 514 |
| V. Kuncser, G. Schinteie, B. Sahoo, W. Keune, D. Bica, L. Vekas and G. Filoti Complex Characterization of Magnetic Fluids by Mössbauer Spectroscopy Romanian Reports in Physics 58 (2006) 235 |
| V. Kuncser, W. Keune, M. Vopsaroiu and P.R. Bisell Erratum to: "The ´in-plane´ angular spin distribution in layered systems as obtained by 57Fe Mössbauer spectroscopy" [Nucl. Instr. and Meth. B 196 (2002) 135-147] Nucl. Instr. and Meth. in Phys. Res. B 245 (2006) 539 |
| F. Stromberg, W. Keune, X. Chen, S. Bedanta, H. Reuther and A. Mücklich The Origin of Ferromagnetism in 57Fe Ion-Implanted Semiconducting 6H-Polytype Silicon Carbide J. Phys.: Condens. Matter 18 (2006) 9881 |
| S. Halm, E. Neshataeva, F. Seifert, T.K. Kümmel, E. Schuster, W. Keune, M. Sperl, J. Puls, F. Henneberger and G. Bacher Tb/Fe multilayer ferromagnets for local semiconductor spin control phys. stat. sol. (c) 3 (2006) 4359 |
| B. Sahoo, W. Keune, E. Schuster, W. Sturhahn, T.S. Toellner and E.E. Alp Amorphous Fe-Mg Alloy Thin Films: Magnetic Properties and Atomic Vibrational Dynamics Hyperfine Interactions 168 (2006) 1185 |
| B. Sahoo, W.A.A. Macedo, W. Keune, V. Kuncser, J. Eisenmenger, J. Nogues, I.K. Schuller, I. Felner, Kai Liu and R. Röhlsberger Mössbauer Spectroscopical Investigation of the Exchange Biased Fe/MnF2 Interface Hyperfine Interactions 169 (2006) 1371 |
| B. Sahoo, W. Keune, E. Schuster, W. Sturhahn, J. Zhao, T. S. Toellner and E. E. Alp Vibrational Dynamics of Fe in Amorphous Fe-Sc and Fe-Al Alloy Thin Films Hyperfine Interactions 170 (2006) 35 |
| D. Predoi, V. Kuncser, M. Zaharescu, A. Jitianu, M. Crisan, W. Keune, B. Sahoo, G. Filoti and M. Raileanu FexOy-SiO2 nonocomposites studied by Mössbauer spectroscopy J. Optoelectr. Adv. Mater. 8 (2006) 518 |
| V. Kuncser, F. Stromberg, G. Schinteie, A. Birsan and W. Keune Interfacial Spin Configuration in Exchange Coupled Magnetic Phases: Exchange Spring and Exchange Bias Systems Bulg. J. Phys. 33 (2006) 135 |
| S. Hövel, N.C. Gerhardt, C. Brenner, M.R. Hofmann, F.-Y. Lo, D. Reuter, A.D. Wieck, E. Schuster and W. Keune Spin-controlled vertical cavity surface-emitting lasers Proceedings of SPIE 6184 (2006) 61840Y |
| B. Sahoo, W.A. Adeagbo, F. Stromberg, W. Keune, E. Schuster, R. Peters, P. Entel, S. Lüttjohann, A. Gondorf, W. Sturhahn, J. Zhao, T.S. Toellner and E.E. Alp Electronic Transport and Atomic Vibrational Properties of Semiconducting Mg2119Sn Thin Film J. Phase Transitions 79 (2006) 839 |
2005
| M. Walterfang, W. Keune, E. Schuster, A.T. Zayak, P. Entel, W. Sturhahn, T.S. Toellner, E.E. Alp, P.T. Jochym and K. Parlinski Atomic Vibrational Density of States of Crystalline β-FeSi2 and Amorphous FeSi2 Thin Films Phys. Rev. B 71 (2005) 035309 |
| E. Schuster, W. Keune, F.-Y. Lo, D. Reuter, A. Wieck and K. Westerholt Preparation and Characterization of Epitaxial Fe(001) Thin Films on GaAs(001)-based LED for Spin Injection Superlattices and Microstructures 37(5) (2005) 313 |
| V.E. Kuncser, F. Stromberg, M. Acet and W. Keune Mössbauer Effect Study of Correlation between Structure and Exchange-Bias Effect in Ferromagnetic Fe/Antiferromagnetic FeSn2 Bilayers J. Appl. Phys. 97 (2005) 063513 |
| B. Roldan Cuenya, W. Keune, Dongqi Li and S.D. Bader Enhanced Hyperfine Magnetic Fields for Face-Centered Tetragonal Fe(110) Ultrathin Films on Vicinal Pd(110) Phys. Rev. B 71 (2005) 064409 |
| N.C. Gerhardt, S. Hövel, C. Brenner, M.R. Hofmann, F.-Y. Lo, D. Reuter, A. Wieck, E. Schuster, W. Keune and K. Westerholt Electron Spin Injection into GaAs from Ferromagnetic Contacts in Remanence Appl. Phys. Lett. 87 (2005) 032502 |
| F. Stromberg, W. Keune, V. Kuncser and K. Westerholt Fe Coverage Induced Out-of-plane Spin Component of the Antiferromagnetic Spin Structure in Exchange Biased Fe/FeSn2 Bilayers Phys. Rev. B 72 (2005) 064440 |
| V. Kuncser, C.P. Lungu, I. Mustata, A.M. Lungu, W. Keune, B. Sahoo, F. Stromberg, M. Walterfang, L.Ion and G. Filoti Fe-Cu Granular Thin Films With Giant Magnetoresistance by Thermionic Vacuum Arc Method: Preparation and Structural Characterization Surface and Coatings Technology 200 (2005) 980 |
| B. Sahoo, W. Keune, W. Sturhahn, T.S. Toellner and E.E. Alp Atomic Vibrational Dynamics of Amorphous Fe-Mg Alloy Thin Films J. Phys. Chem. Solids 66 (2005) 2263 |
| B. Sahoo, V. Kuncser, W. Keune and J. Pieper Mössbauer Spectroscopical Investigation of Amorphous Fe-Y Alloy Ribbons Prepared by Melt Spinning Hyperfine Interactions 165 (2005)175 |
2004
| W. Keune, T. Ruckert, B. Sahoo, W. Sturhahn, T.S. Toellner, E.E. Alp and R. Röhlsberger Atomic Vibrational Density of States in Crystalline and Amorphous Tb1-xFex Alloy Thin Films Studied by Nuclear Resonant Inelastic X-ray Scattering (NRIXS) J. Phys.: Condens. Matter 16 (2004) S379 |
| V. Kuncser, W. Keune, B. Sahoo, E. Duman, M. Acet, F. Radu, M. Valeanu, O. Crisan and G. Filoti Magnetic Interactions and Spin Configuration in FeRh and Fe/FeRh Systems J. Magn. Magn. Mater. 272-276 (2004) 348 |
| D. Predoi, V. Kuncser, M. Zaharescu, W. Keune, B. Sahoo, M. Valeanu, M. Crisan, M. Raileanu, A. Jitianu and G. Filoti Structural and Magnetic Properties of Iron Species // SiO2 Nanocomposites Obtained by Sol-Gel Methods Phys. Stat. Sol. (c) 1 (2004) 3507 |
| W.A.A. Macedo, B. Sahoo, V. Kuncser, J. Eisenmenger, I. Felner, J. Nogués, Kai Liu, W. Keune and Ivan K. Schuller Changes in Ferromagnetic Spin Structure Induced by Exchange Bias in Fe/MnF2 Films Phys. Rev. B 70 (2004) 224414 |
| S.K. Date, P.A. Joy, P.S. Anil Kumar, B. Sahoo and W. Keune Structural, Magnetic and Mössbauer Studies on Nickel-Zinc Ferrites Synthesized via a Precipitation Route Phys. Stat. Sol. (c) 1 (2004) 3495 |
| T. Spataru, G. Principi, V. Kuncser, W. Keune and V.A. Yartys Mössbauer Study of the RENiSnD (RE: Pr, Nd) Monodeuterides" J. Alloys and Compounds 366 (2004) 81 |
| F. Stromberg, V. Kuncser, K. Westerholt and W. Keune Interfacial Spin Structure in Epitaxial Fe/FeSn2 Bilayers with Exchange Bias Phys. Stat. Sol. (c) 1 (2004) 3754 |
2003
| B. Roldan Cuenya, M. Doi, W. Keune, S. Hoch, D. Reuter, A. Wieck, T. Schmitte and H. Zabel Interface Magnetism of Epitaxial Fe Films on High-Mobility GaAs/Al0.35Ga0.65As(001) Two-Dimensional Electron Gas Heterostructures Appl. Phys. Lett. 82 (2003) 1072 |
| B. Sahoo, V. Kuncser, S. Kirsch and W. Keune Superconductivity of MgB2 Thin Films Prepared by Co-Evaporation and Magnetism of MgB2/Fe Multilayers Studied by Mössbauer Spectroscopy Phase Transitions 76 (2003) 423 |
| M. Walterfang, W. Keune and H. Reuther Mössbauer-Effect Study of Metastable c-FeSi Synthesized by Molecular Beam Epitaxy (MBE) and by Ion Implantation Phase Transitions 76 (2003) 437 |
| V. Kuncser, W. Keune, M. Vopsaroiu, P.R. Bissel, B. Sahoo and G. Filoti Easy Axis Distribution in Modern Nanoparticle Storage Media: A New Methodological Approach J. Optoelectronics and Advanced Mater. 5 (2003) 217 |
| V. Kuncser, M. Doi, B. Sahoo, F. Stromberg and W. Keune Preparation and Structural Investigations of Epitaxially Grown Antiferromagnetic FeSn2(001) Thin Films on InSb(001) J. Appl. Phys. 94 (2003) 3573 |
| V.E. Kuncser, M. Doi, W. Keune, M. Askin, H. Spies, J.S. Jiang, A. Inomata and S.D. Bader Observation of the Fe Spin Spiral Structure in Fe/Sm-Co Exchange Spring Bilayers by Mössbauer Spectroscopy Phys. Rev. B 68 (2003) 064416 |
2002
| M. Doi, B. Roldan Cuenya, W. Keune, T. Schmitte, A. Nefedov, H. Zabel, D. Spoddig, R. Meckenstock and J. Pelzl Magnetic and Structural Properties of Epitaxial Fe Thin films on GaAs(001) and Interfaces J. Magn. Magn. Mater. 240 (2002) 407 |
| R. Meckenstock, D. Spoddig, K. Himmelbauer, H. Krenn, M. Doi, W. Keune, Z. Frait and J. Pelzl Magnetic Properties of Fe/ZnSe and Fe/GaAs Heterostructures Investigated by Ferromagnetic Resonance and SQUID Measurements J. Magn. Magn. Mater. 240 (2002) 410 |
| T. Ruckert, W. Keune, W. Sturhahn and E.E. Alp Phonon Density of States in Tb/Fe Multilayers J. Magn. Magn. Mater. 240 (2002) 562 |
| V.M. Uzdin, W. Keune and M. Walterfang Epitaxial growth, alloying and magnetic structure of interfaces in Fe/Cr (001) superlattices J. Magn. Magn. Mater. 240 (2002) 504 |
| B. Roldan Cuenya, M. Doi and W. Keune Epitaxial Growth and Interfacial Structure of Sn on Si(111) (7x7) Surf. Sci. 506 (2002) 33 |
| V. Kuncser, M. Doi, M. Acet and W. Keune Spin Structures in Exchange-Biased Thin Films Studied by Mössbauer Spectroscopy Hyperfine Interactions (C) 5 (2002) 603 |
| V. Kuncser, W. Keune, M. Vopsaroiu and P.R. Bisell The In-Plane Angular Spin Distribution in Layered Systems as Obtained by 57Fe Mössbauer Spectroscopy Nucl. Instrum. Meth. in Phys. Res. B 196 (2002) 135 |
| W. Keune, V.E. Kuncser, M. Doi, M. Askin, H. Spies, B. Sahoo, E. Duman, M. Acet, J.S. Jiang, A. Inomata and S.D. Bader (invited paper) Mössbauer Effect Study of the Fe Spin Structure in Exchange-Bias and Exchange-Spring Systems J. Phys. D: Applied Physics 35 (2002) 2352 |
| A. Nefedov, T. Schmitte, K. Theis-Bröhl, H. Zabel, M. Doi, E. Schuster and W. Keune Growth and Structure of L1o Ordered FePt films on GaAs(001) J. Phys. : Condens. Matter 14 (2002) 12273 |
| T. Ruckert, W. Keune, B. Sahoo, W. Sturhahn, T. Toellner, E.E. Alp and R. Röhlsberger (invited) Atomic Vibrational Dynamics of Thin Films Studied by Nuclear Resonant Inelastic X-Ray Scattering: Amorphous TbxFe1-x Alloys Hyperfine Interactions 144/145 (2002) 65 |
| V. Kuncser, M. Vopsaroiu, B. Sahoo, P.R. Bissel and W. Keune Advanced double coated metal particle tapes studied by Mössbauer spectroscopy and magnetic measurements Hyperfine Interactions (c) 5 (2002) 103 |
| S.K. Mohapatra, B. Sahoo, W. Keune and P. Selvam Synthesis, characterization and catalytic properties of trivalent iron substituted hexagonal mesoporous aluminophosphates Chem. Commun. (2002) 1466 |
2001
| M. Stöckmann, F. Konietzni, J.U. Notheis, J. Voss, W. Keune and W.F. Maier Selective Oxidation of Benzene to Phenol in the Liquid Phase with Amorphous Microporous Mixed Oxides Applied Catalysis A 208, 343 (2001) |
| V.M. Uzdin, W. Keune, H.Schrör, M. Walterfang Fe/Cr interface magnetism: Correlation between hyperfine fields and magnetic moments Phys. Rev. B 63 (2001) 104407 |
| V. Uzdin and W. Keune Hyperfine Field Distribution and Interface Structure on the Atomic Scale The Physics of Metals and Metallography 91, Suppl. 1, (2001) S82 |
| B. Roldan Cuenya, M. Doi, S. Löbus, R. Courths and W. Keune Observation of the fcc-to-bcc Bain transformation in Epitaxial Fe Ultrathin Films on Cu3Au(001) Surf. Sci. 493, 338 (2001) |
| Dongqi Li, B. Roldan Cuenya, J. Pearson, S.D. Bader and W. Keune Magnetism of Step-Decorated Fe on Pd(110) Phys. Rev. B 64, 144410 (2001) |
| B. Roldan Cuenya, W. Keune, W. Sturhahn, T.S. Toellner and M.Y. Hu Structure and Vibrational Dynamics of Interfacial Sn layers in Sn/Si Multilayers Phys. Rev. B 64 (2001) 235321 |
| F. Richomme, J. Teillet, A. Fnidiki and W. Keune Structural and Magnetic Properties of UHV Evaporated Fe/Tb Multilayers: Effect of the Substrate Temperature Phys. Rev. B 64, 094415 (2001) |
2000
| Juraszek, A. Fnidiki, J. Teillet, M. Toulemonde, A. Michel and W. Keune Directional Effect of Heavy-Ion Irradiation in Tb/Fe Multilayers Phys. Rev. B 61 (2000) 12 |
| J. Tappert, S. Neumann, J. Jungermann, W.S. Kim, T. Ruckert, R.A. Brand, W. Keune, W. Kleemann, F. Richomme, J. Teillet, F. Klose and H. Maletta Fe-Spin Structure in Terbium/Iron Multilayers Philos. Mag. B 80 (2000) 257 |
| M. Walterfang, S. Kruijer, W. Keune, M. Dobler and H. Reuther Depth Analysis of Buried Iron Disilicide Formation by Fe Ion Implantation into Si Appl. Phys. Lett. 76 (2000) 1413 |
| B. Roldan Cuenya, M. Doi, O. Marks, W. Keune and K. Mibu Reflection High-Energy Electron Diffraction and 119Sn Mössbauer Investigation of epitaxial Sn-Films in: "Structure and Dynamics of Heterogeneous Systems, eds. P. Entel and D.E. Wolf, World Scientific, Singapore 2000, S. 251-262 |
| R. Reiche, S. Oswald, K. Wetzig, M. Dobler, H. Reuther and M. Walterfang The Transformation of β-FeSi2 under Ar Ion Bombardment Studied by XPS, AES and Mössbauer Spectroscopy Nucl. Instr. Methods in Phys. Res. B 160, 397 (2000) |
| M. Walterfang, S. Kruijer, M. Dobler, H. Reuther and W. Keune Phase Analysis of α-Fe after High-Dose Si Ion Implantation by Depth-Selective Conversion-Electron Mössbauer Spectroscopy (DCEMS) Hyperfine Interact. 126 (2000) 219 |
| T. Ruckert, W. Keune, W. Sturhahn, M.Y. Hu, J.P. Sutter, T.S. Toellner and E.E. Alp Phonon Density of States in Epitaxial Fe/Cr(001) Superlattices Hyperfine Interact. 126 (2000) 363 |
| B. Roldan Cuenya, M. Doi, T. Ruckert, W. Keune and T. Steffl Magnetism and Structure of Epitaxial Face-Centered Tetragonal Fe Thin Films J. Phys. Soc. Japan 69, Suppl. A, 125 (2000) |