Zobrazeno 1 - 10
of 566
pro vyhledávání: '"J. B. Philipp"'
Autor:
V. Sankaranarayanan, M. S. Ramachandra Rao, Matthias Opel, Rudolf Gross, J. B. Philipp, N. Rama
Publikováno v:
Journal of Physics D: Applied Physics. 40:1430-1434
Ba2FeNbO6 (BFNO) is an antiferromagnetic insulator with a N�el temperature TN of 25 K. We have systematically studied the effect of substrate on the electrical transport of this compound under different growth conditions. We find that while the bul
Autor:
Rudolf Gross, J. Klein, F. Herbstritt, Lambert Alff, Hua-Ming Zhang, A. Marx, J. B. Philipp, Yafeng Lu
Publikováno v:
physica status solidi (b). 242:1545-1560
We have prepared high quality, coherently strained La2/3Ca1/3MnO3/SrTiO3 superlattices with different modulation periods by laser molecular beam epitaxy on (001) SrTiO3 and NdGaO3 substrates. A detailed structural characterization was performed by hi
Autor:
Lambert Alff, Andreas Erb, J. Simon, Matthias Opel, J. B. Philipp, Rudolf Gross, Karl-Wilhelm Nielsen
Publikováno v:
Superlattices and Microstructures. 37:327-332
We have prepared quasi-homoepitaxial Zn0.95Mn0.05O-films on ZnO substrates by pulsed laser deposition. The thin films were characterized by in situ RHEED during growth, X-ray diffraction and reflectometry, as well as transmission electron microscopy
Autor:
M. S. Ramachandra Rao, Andreas Erb, Matthias Opel, V. Sankaranarayanan, Rudolf Gross, J. B. Philipp, N. Rama
Publikováno v:
The European Physical Journal B. 38:553-557
The effect of rare earth ion (RE = Er3 + , Tb3 + , Ho3 + ) substitution in Pr0.74Sr0.26MnO3 (PSMO(0.26)) on the magnetic and transport properties is reported. It is found that even for a small concentration of substitution of Pr3 + ions by Er3 + , Tb
Autor:
Martin S. Brandt, Martin Stutzmann, Oliver Ambacher, M. Gjukic, M. Hermann, L. Görgens, J. B. Philipp, T. Graf
Publikováno v:
Journal of Applied Physics. 93:9697-9702
The oxidation states of Mn in epitaxial GaN films grown by plasma induced molecular beam epitaxy were investigated by electron spin resonance (ESR), elastic recoil detection, superconducting quantum interference device magnetization, and photothermal
Publikováno v:
physica status solidi (a). 189:367-371
Epitaxial thin films of the bilayered perovskite La 2-2x Sr 1+2x Mn 2 O 7 (x = 0.3,0.4) have been grown by laser molecular beam epitaxy on NdGaO 3 substrates. Magnetotransport measurements with the current in the ab-plane and along the c-axis directi
Publikováno v:
physica status solidi (a). 189:617-620
We report on the fabrication and structural characterization of coherently strained La 2/3 Ca 1/3 MnO 3 (LCMO) thin films and La 2/3 Ca 1/3 MnO 3 /La 2/3 Ba 1/3 MnO 3 (LCMO/LBMO) heterostructures on SrTiO 3 substrates. The thin films grow in a layer-
Publikováno v:
Europhysics Letters (EPL). 50:681-687
We have performed a systematic analysis of the voltage and temperature dependence of the tunneling magnetoresistance (TMR) of grain boundaries (GB) in the manganites. We find a strong decrease of the TMR with increasing voltage and temperature. The d
Autor:
Achim Marx, J. Klein, Rudolf Gross, D. Reisinger, Andreas Erb, J. B. Philipp, Matthias Opel, Lambert Alff
Publikováno v:
Journal of Applied Physics. 93:7373-7375
Epitaxial coherency strain is a crucial parameter strongly influencing the complex interplay between structure as well as spin, charge, and orbital degrees of freedom in the doped manganites. We have grown epitaxial manganite thin films on various su
Autor:
Andreas Waag, Martin S. Brandt, Wladimir Schoch, T. Graf, S. T. B. Goennenwein, Michael Krieger, K. Zürn, Martin Stutzmann, Thomas Wassner, S. Frank, Paul J. Ziemann, Rudolf Gross, J. B. Philipp, A. Koeder
Publikováno v:
Applied Physics Letters. 82:730-732
We report ferromagnetic resonance experiments on Ga1−xMnxAs thin films. For the dc magnetic field perpendicular to the sample plane, we observe up to eight distinct resonances, which we attribute to spin wave modes. To account for the spacing of th