Spintronic oxides grown by laser-MBE Matthias Opel J. Phys. D: Appl. Phys. 45, 033001 (2012)
Novel multifunctional materials based on oxide thin films and artificial heteroepitaxial multilayers M. Opel, S. Geprägs, E. P. Menzel, A. Nielsen, D. Reisinger, K.-W. Nielsen, A. Brandlmaier, F. D. Czeschka, M. Althammer, M. Weiler, S. T. B. Goennenwein, J. Simon, M. Svete, W. Yu, S.-M. Hühne, W. Mader, R. Gross Phys. Status Solidi A 208, 232 (2011) Back Cover: Novel multifunctional materials based on oxide thin films and artificial heteroepitaxial multilayers (Phys. Status Solidi A 2/2011)
Superconductivity of calcium C60 intercalation compound synthesized by shock-wave pressure Yu. A. Ossipyan, N. S. Sidorov, A. V. Palnichenko, O. M. Vyaselev, M. V. Kartsovnik, M. Opel, V. V. Avdonin, D. V. Shakhrai, V. E. Fortov Fullerenes, Nanotubes and Carbon Nanostructures 18, 376 (2010)
Electric field controlled manipulation of the magnetization in Ni/BaTiO3 hybrid structures S. Geprägs, A. Brandlmaier, M. Opel, R. Gross, S.T.B. Goennenwein Appl. Phys. Lett. 96, 142509 (2010)
Magnetic interference patterns in 0-π superconductor/insulator/ferromagnet/superconductor Josephson junctions: Effects of asymmetry between 0 and π regions M. Kemmler, M. Weides, M. Weiler, M. Opel, S.T.B. Goennenwein, A.S. Vasenko, A.A. Golubov, H. Kohlstedt, D. Koelle, R. Kleiner, E. Goldobin Phys. Rev. B 81, 054522 (2010)
Advanced spectroscopic synchrotron techniques to unravel the intrinsic properties of dilute magnetic oxides: the case of Co:ZnO A. Ney, M. Opel, T.C. Kaspar, V. Ney, S. Ye, K. Ollefs, T. Kammermeier, S. Bauer, K.-W. Nielsen, S.T.B. Goennenwein, M.H. Engelhard, S. Zhou, K. Potzger, J. Simon, W. Mader, S.M. Heald, J.C. Cezar, F. Wilhelm, A. Rogalev, R. Gross, S.A. Chambers New J. Phys. 12, 013020 (2010)
Giant magnetic anisotropy changes in Sr2CrReO6 thin films on BaTiO3 F.D. Czeschka, S. Geprägs, M. Opel, S.T.B. Goennenwein, R. Gross Appl. Phys. Lett. 95, 062508 (2009)
Epitaxial growth and magnetic properties of Sr2CrReO6 thin films S. Geprägs, F.D. Czeschka, M. Opel, S.T.B. Goennenwein, W. Yu, W. Mader, R. Gross J. Magn. Magn. Mater. 321, 2001 (2009)
Epitaxial ZnxFe3−xO4 thin films: A spintronic material with tunable electrical and magnetic properties D. Venkateshvaran, M. Althammer, A. Nielsen, S. Geprägs, M.S.R. Rao, S.T.B. Goennenwein, M. Opel, R. Gross Phys. Rev. B 79, 134405 (2009)
Voltage controlled inversion of magnetic anisotropy in a ferromagnetic thin film at room temperature M. Weiler, A. Brandlmaier, S. Geprägs, M. Althammer, M. Opel, C. Bihler, H. Huebl, M.S. Brandt, R. Gross, S.T.B. Goennenwein New J. Phys. 11, 013021 (2009)
All oxide ferromagnet/semiconductor epitaxial heterostructures A. Nielsen, A. Brandlmaier, M. Althammer, W. Kaiser, M. Opel, J. Simon, W. Mader, S.T.B. Goennenwein, R. Gross Appl. Phys. Lett. 93, 162510 (2008)
Anomalous Hall effect in magnetite: Universal scaling relation between Hall and longitudinal conductivity in low-conductivity ferromagnets D. Venkateshvaran, W. Kaiser, A. Boger, M. Althammer, M.S.R. Rao, S.T.B. Goennenwein, M. Opel, R. Gross Phys. Rev. B 78, 092405 (2008)
Nanosized superparamagnetic precipitates in cobalt-doped ZnO M. Opel, K.-W. Nielsen, S. Bauer, S.T.B. Goennenwein, J.C. Cezar, D. Schmeisser, J. Simon, W. Mader, R. Gross Eur. Phys. J. B 63, 437 (2008)
Ga1−xMnxAs/piezoelectric actuator hybrids: A model system for magnetoelastic magnetization manipulation C. Bihler, M. Althammer, A. Brandlmaier, S. Geprägs, M. Weiler, M. Opel, W. Schoch, W. Limmer, R. Gross, M.S. Brandt, S.T.B. Goennenwein Phys. Rev. B 78, 045203 (2008)
Suppression of hole-mediated ferromagnetism in Ga1-xMnxP by hydrogen C. Bihler, M. Kraus, M.S. Brandt, S.T.B. Goennenwein, M. Opel, M.A. Scarpulla, R. Farshchi, D.M. Estrada, O.D. Dubon J. Appl. Phys. 104, 013908 (2008)
Superconductivity of C60 fullerite intercalated with Ca by means of shock-wave pressure technique Yu.A. Ossipyan, N.S. Sidorov, A.V. Palnichenko, O.M. Vyaselev, M.V. Kartsovnik, M. Opel, V.V. Avdonin, D.V. Shakhrai, N.V. Biktimirova, A.A. Golyshev Chem. Phys. Lett. 457, 74 (2008)
In situ manipulation of magnetic anisotropy in magnetite thin films A. Brandlmaier, S. Geprägs, M. Weiler, A. Boger, M. Opel, H. Huebl, C. Bihler, M.S. Brandt, B. Botters, D. Grundler, R. Gross, S.T.B. Goennenwein Phys. Rev. B 77, 104445 (2008)
Piezo-voltage control of magnetization orientation in a ferromagnetic semiconductor S.T.B. Goennenwein, M. Althammer, C. Bihler, A. Brandlmaier, S. Geprägs, M. Opel, W. Schoch, W. Limmer, R. Gross, M.S. Brandt phys. stat. sol. (RRL) 2, 96 (2008)
Influence of disorder on the low and high temperature magnetization and magnetoresistance in Pr0.6R0.1Sr0.3MnO3 (R = Tb, Y, Ho and Er) manganite N. Rama, V. Sankaranarayanan, M. Opel, R. Gross, M.S. Ramachandra Rao Journal of Alloys and Compounds 443, 7 (2007)
Electrically detected ferromagnetic resonance S.T.B. Goennenwein, S.W. Schink, A. Brandlmaier, A. Boger, M. Opel, R. Gross, R.S. Keizer, T.M. Klapwijk, A. Gupta, H. Huebl, C. Bihler, M.S. Brandt Appl. Phys. Lett. 90, 162507 (2007)
Magnetocrystalline anisotropy and magnetization reversal in Ga1−xMnxP synthesized by ion implantation and pulsed-laser melting C. Bihler, M. Kraus, H. Huebl, M.S. Brandt, S.T.B. Goennenwein, M. Opel, M.A. Scarpulla, P.R. Stone, R. Farshchi, O.D. Dubon Phys. Rev. B 75, 214419 (2007)
Multiferroic materials based on artificial thin film heterostructures S. Geprägs, M. Opel, S.T.B. Goennenwein, R. Gross Phil. Mag. Lett. 87, 141 (2007)
Effect of substrate on the electrical transport property of Ba2FeNbO6 double perovskite thin films N. Rama, J.B. Philipp, M. Opel, V. Sankaranarayanan, R. Gross, M.S. Ramachandra Rao J. Phys. D: Appl. Phys. 40, 1430 (2007)
Magnetic and structural properties of GexMn1−x films: Precipitation of intermetallic nanomagnets S. Ahlers, D. Bougeard, N. Sircar, G. Abstreiter, A. Trampert, M. Opel, R. Gross Phys. Rev. B 74, 214411 (2006)
Ferromagnetism in epitaxial Zn0.95Co0.05O films grown on ZnO and Al2O3 K. Nielsen, S. Bauer, M. Lübbe, S.T.B. Goennenwein, M. Opel, J. Simon, W. Mader, R. Gross phys. stat. sol. (a) 203, 3581 (2006)
Ferroelectric and magnetic properties of Ho2CuTiO6 double perovskite S. Bhaskar Reddy, K. Mohan Kant, K. Prasad Rao, Matthias Opel, R. Gross, M.S. Ramachandra Rao J. Magn. Magn. Mater. 303, e332 (2006)
Spin-glass-like behavior of Ge:Mn C. Jaeger, C. Bihler, T. Vallaitis, S.T.B. Goennenwein, M. Opel, R. Gross, M.S. Brandt Phys. Rev. B 74, 045330 (2006)
X-ray magnetic circular dichroism study of Re 5d magnetism in Sr2CrReO6 P. Majewski, S. Geprägs, O. Sanganas, M. Opel, R. Gross, F. Wilhelm, A. Rogalev, L. Alff Appl. Phys. Lett. 87, 202503 (2005)
Magnetic moments of W 5d in Ca2CrWO6 and Sr2CrWO6 double perovskites P. Majewski, S. Geprägs, A. Boger, M. Opel, A. Erb, R. Gross, G. Vaitheeswaran, V. Kanchana, A. Delin, F. Wilhelm, A. Rogalev, L. Alff Phys. Rev. B 72, 132402 (2005)
Low Temperature Properties and Superconductivity of LuB12 K. Flachbart, S. Gabáni, K. Gloos, M. Meissner, M. Opel, Y. Paderno, V. Pavlík, P. Samuely, E. Schuberth, N. Shitsevalova, K. Siemensmeyer, P. Szabó J. Low Temp. Phys. 140, 339 (2005)
A-site dependent percolative thermopower and Griffiths phase in Pr0.7-xHoxSr0.3MnO3 (x = 0.0, 0.04, 0.08, and 0.1) N. Rama, M. Opel, V. Sankaranarayanan, R. Gross, S.B. Ogale, T. Venkatesan, M.S. Ramachandra Rao J. Appl. Phys. 97, 10H713 (2005)
Ferromagnetism in Mn-doped ZnO due to impurity bands K.-W. Nielsen, J.B. Philipp, M. Opel, A. Erb, J. Simon, L. Alff, R. Gross Superlattices and Microstructures 37, 327 (2005)
Epitaxial growth of electron doped double perovskites LaxA2-xCrWO6 with A = Sr and Ca P. Majewski, S. Geprägs, A. Boger, M. Opel, L. Alff, R. Gross J. Magn. Magn. Mater. 290-291, 1154 (2005)
A-site-disorder-dependent percolative transport and Griffiths phase in doped manganites N. Rama, M.S. Ramachandra Rao, V. Sankaranarayanan, P. Majewski, S. Gepraegs, M. Opel, R. Gross Phys. Rev. B 70, 224424 (2004)
Hall effect, magnetization, and conductivity of Fe3O4 epitaxial thin films D. Reisinger, P. Majewski, M. Opel, L. Alff, R. Gross Appl. Phys. Lett. 85, 4980 (2004)
Effect of rare earth ion substitution on the magnetic and transport properties of Pr0.7RE0.04Sr0.26MnO3 (RE = Er3+, Tb3+, and Ho3+) N. Rama, J.B. Philipp, M. Opel, A. Erb, V. Sankaranarayanan, R. Gross, M.S. Ramachandra Rao Eur. Phys. J. B 38, 553 (2004)
Hydrogen control of ferromagnetism in a dilute magnetic semiconductor Sebastian T.B. Goennenwein, Thomas A. Wassner, Hans Huebl, Martin S. Brandt, Jan B. Philipp, Matthias Opel, Rudolf Gross, Achim Koeder, Wladimir Schoch, Andreas Waag Phys. Rev. Lett. 92, 227202 (2004)
Study of magnetic properties of A2B'NbO6 (A=Ba,Sr,BaSr; and B'=Fe and Mn) double perovskites N. Rama, J.B. Philipp, M. Opel, K. Chandrasekaran, V. Sankaranarayanan, R. Gross, M.S. Ramachandra Rao Journal of Applied Physics 95, 7528 (2004)
Magnetoresistance and magnetic properties of the double perovskites J.B. Philipp, P. Majewski, D. Reisinger, S. Geprägs, M. Opel, A. Erb, L. Alff, R. Gross Acta Physica Polonica A 105, 7 (2004)
Epitaxy of Fe3O4 on Si(001) by pulsed laser deposition using a TiN/MgO buffer layer D. Reisinger, M. Schonecke, T. Brenninger, M. Opel, A. Erb, L. Alff, R. Gross Journal of Applied Physics 94, 1857 (2003)
Epitaxial growth and transport properties of Sr2CrWO6 thin films J.B. Philipp, D. Reisinger, M. Schonecke, M. Opel, A. Marx, A. Erb, L. Alff, R. Gross Journal of Applied Physics 93, 6853 (2003)
Orbital order and anisotropic transport properties in doped manganites induced by epitaxial coherency strain J. Klein, J.B. Philipp, D. Reisinger, M. Opel, A. Marx, A. Erb, L. Alff, R. Gross Journal of Applied Physics 93, 7373 (2003)
Observation of an unconventional metal-insulator transition in overdoped CuO2 compounds F. Venturini, M. Opel, T.P. Devereaux, J.K. Freericks, I. Tüttö, B. Revaz, E. Walker, H. Berger, L. Forró, R. Hackl Phys. Rev. Lett. 89, 107003 (2002)
Raman Scattering in Solids (Manuskript) M. Opel and F. Venturini European Pharmaceutical Review 7(3), 76 (2002)
A Light-Scattering Study of Dynamical Carrier Properties in Cuprate Systems M. Opel, R. Nemetschek, F. Venturini, R. Hackl, I. Tüttö, H. Berger, L. Forró, A. Erb, B. Revaz, and E. Walker Ferroelectrics 249, 155 (2001)
Eigenschaften des Elektronensystems und seiner Wechselwirkungen in antiferromagnetischen und supraleitenden Kupraten: Eine Raman-Studie (Manuskript) M. Opel Dissertation TU München, Shaker-Verlag Aachen (2000), ISBN 3-8265-7514-8
Carrier relaxation, pseudogap, and superconducting gap in high-Tc cuprates: A Raman scattering study M. Opel, R. Nemetschek, C. Hoffmann, R. Philipp, P.F. Müller, R. Hackl, I. Tüttö, A. Erb, B. Revaz, E. Walker, H. Berger, L. Forró Phys. Rev. B 61, 9752 (2000)
Superconducting Gap and Pseudogap in Bi-2212 Matthias Opel, Francesca Venturini, Rudi Hackl, Helmuth Berger, László Forró Physica B 284-288, 669 (2000)
Pseudogap and Superconducting Gap in YBa2Cu3O6+x: A Raman Study Matthias Opel, Martin Götzinger, Christian Hoffmann, Ralf Nemetschek, Richard Philipp, Francesca Venturini, Rudi Hackl, Andreas Erb, Eric Walker J. Low Temp. Phys. 117, 347 (1999)
Raman Spectroscopy in Y-123 and Bi-2212: Pseudogap and Superconducting Gap M. Opel, R. Nemetschek, F. Venturini, R. Hackl, A. Erb, E. Walker, H. Berger, L. Forró physica status solidi (b) 215, 471 (1999)
Physical Origin of the Buckling in CuO2: Electron-Phonon Coupling and Raman Spectra M. Opel, R. Hackl, T.P. Devereaux, A. Virosztek, A. Zawadowski, A. Erb, E. Walker, H. Berger, L. Forró Phys. Rev. B 60, 9836 (1999)
Pseudogap and Superconducting Gap in the Electronic Raman Spectra of Underdoped Cuprates M. Opel, R. Nemetschek, C. Hoffmann, P.F. Müller, R. Philipp, R. Hackl, H. Berger, L. Forró, A. Erb, E. Walker J. Phys. Chem. Solids 59, 1942 (1998)
d+s wave superconductivity: Analysis of the electronic Raman data of YBa2Cu3O7-δ and other cuprates R. Nemetschek, R. Hackl, M. Opel, R. Philipp, M.T. Béal-Monod, J.B. Bieri, K. Maki, A. Erb, E. Walker Eur. Phys. J. B 5, 495 (1998)
Enhanced electron-phonon coupling and its irrelevance to high Tc superconductivity T.P. Devereaux, A. Virosztek, A. Zawadowski, M. Opel, P.F. Müller, C. Hoffmann, R. Philipp, R. Nemetschek, R. Hackl, A. Erb, E. Walker, H. Berger, L. Forró Solid State Commun. 108, 407 (1998)
Pseudogap and Superconducting Gap in the Electronic Raman Spectra of Underdoped Cuprates R. Nemetschek, M. Opel, C. Hoffmann, P.F. Müller, R. Hackl, H. Berger, L. Forró, A. Erb, E. Walker Phys. Rev. Lett. 78, 4837 (1997)
Electronic Raman Scattering in CuO2 Superconductors R. Hackl, M. Opel, P.F. Müller, G. Krug, B. Stadlober, R. Nemetschek, H. Berger, L. Forró J. Low Temp. Phys. 105, 733 (1996)
Electronic Raman scattering in copper-oxide superconductors and related compounds R. Hackl, G. Krug, R. Nemetschek, M. Opel, B. Stadlober Spectroscopic Studies of Superconductors 2696, 194, eds. I. Bozovic and D. van der Marel (SPIE, Bellingham, 1996)
A study of critical and thermal pair breaking in differently doped Cu-O superconductors by electronic Raman scattering M. Opel, P.F. Müller, R. Nemetschek, B. Stadlober, R. Hackl, H. Berger, L. Forró Czechoslovak Journal of Physics 46, 1107 (1996)
Study of k-dependent electronic properties in cuprate superconductors using Raman spectroscopy B. Stadlober, G. Krug, R. Nemetschek, M. Opel, R. Hackl, D. Einzel, C. Schuster, T.P. Devereaux, L. Forró, J.L. Cobb, J.T. Markert, J.J. Neumeier Journal of the Physics and Chemistry of Solids 56, 1841 (1995)
