Zobrazeno 1 - 10
of 577
pro vyhledávání: '"M, Loewenhaupt"'
Autor:
M. Loewenhaupt, K. Prokeš, Z. Ren, Astrid Schneidewind, S.A. Granovsky, P. Geselbracht, Martin Rotter, Mathias Doerr, G. W. Scheerer
Publikováno v:
Physical Review B. 95
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::043edcd7f6bbd30fb9c498ad4dc83035
https://doi.org/10.1103/physrevb.95.214425
https://doi.org/10.1103/physrevb.95.214425
Autor:
Sahana Roessler, M. Loewenhaupt, Steffen Wirth, Aditya A. Wagh, Martin Rotter, Suja Elizabeth, Mathias Doerr, P. S. Anil Kumar
Publikováno v:
Journal of the Korean Physical Society. 62:1449-1452
Multiferroic materials are characterized by simultaneous magnetic and ferroelectric ordering making them good candidates for magneto-electrical applications. We conducted thermal expansion and magnetostriction measurements in magnetic fields up to 14
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7a735072ae7cf64ba88f1b943a449c28
https://doi.org/10.3938/jkps.62.1449
https://doi.org/10.3938/jkps.62.1449
Autor:
S.A. Granovsky, M. Loewenhaupt, Cristina Bormio-Nunes, Mathias Doerr, Mateus Botani de Souza Dias, Claudio Teodoro dos Santos
Publikováno v:
Journal of Alloys and Compounds. 539:226-232
The doping of Fe80Al20 polycrystalline alloy with 2% of boron increased the total magnetostriction twofold compared to a sample without boron. A value close to 80 ppm was achieved at 300 K. The microstructures of the boron-doped alloys show a dendrit
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fc112ab92f9dcfbad4eca560ed2b2f0e
https://doi.org/10.1016/j.jallcom.2012.06.034
https://doi.org/10.1016/j.jallcom.2012.06.034
Autor:
Stefan Kirchner, Hirale S. Jeevan, Wolfgang Schmidt, Frank Steglich, M. Loewenhaupt, Karin Schmalzl, Qimiao Si, C. Geibel, Oliver Stockert, E. Faulhaber, J. Arndt
Publikováno v:
Nature Physics. 7:119-124
The origin of unconventional superconductivity, including high-temperature and heavy-fermion superconductivity, is still a matter of controversy. Spin excitations instead of phonons are thought to be responsible for the formation of Cooper pairs. Usi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d98e259f8c0c4512eff98666e4819514
https://doi.org/10.1038/nphys1852
https://doi.org/10.1038/nphys1852
Autor:
M. Loewenhaupt, A. Metz, D. McK. Paul, V. H. M. Duijn, J. J. M. Franse, J. M. Martin, W Schmidt, H. Mutka, N. M. Pyka
Publikováno v:
Annalen der Physik. 508:197-202
The low-energy magnetic excitations (ħω ≤ 2 meV) of polycrystalline samples of Nd2-xCexCuO4 with x = 0, 0.1 and 0.15 have been measured with high resolution inelastic neutron scattering using time-of-flight technique at temperatures below 0.3 K.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5290fb6b2e0e5373ad712bb1b9f19db4
https://doi.org/10.1002/andp.2065080208
https://doi.org/10.1002/andp.2065080208
Publikováno v:
Journal of Low Temperature Physics. 161:55-66
The heavy-fermion system CeCu6−x Au x which exhibits antiferromagnetic order for Au concentrations x>0.1, can be easily tuned to a quantum phase transition, either by chemical composition, i.e., Au concentration, or by an external magnetic field. W
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d90f1d47f5bb1bfad5477ac1e9fe4300
https://doi.org/10.1007/s10909-010-0210-7
https://doi.org/10.1007/s10909-010-0210-7
Autor:
Tilmann Leisegang, M. Loewenhaupt, Matthias Frontzek, Dirk C. Meyer, S. Raasch, Mathias Doerr, Martin Rotter, Pavel Svoboda, M. Zschintzsch
Publikováno v:
The European Physical Journal Special Topics. 158:125-130
The volume, shape and microstructure of solids can be influenced by magnetic fields. Much effort is focused on magnetic shape memory (MSM) materials. Recently, the MSM effect has been discovered to occur also in the paramagnetic state, e.g. in RCu2 c
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d0f51c6ae69928a499fda60a0cab5700
https://doi.org/10.1140/epjst/e2008-00664-4
https://doi.org/10.1140/epjst/e2008-00664-4
Autor:
F. M. Grosche, C. Geibel, Frank Steglich, M. Loewenhaupt, Steffen Wirth, Huiqiu Yuan, Oliver Stockert
Publikováno v:
Physica B: Condensed Matter. 403:968-972
A variety of unconventional pairing mechanisms seem to be operating in heavy-fermion superconductors. We address briefly Cooper pairing mediated by magnetic excitons in UPd 2 Al 3 and by valence fluctuations in pressurized CeCu 2 Si 2 . Moreover, evi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b8ead8291b2f74d0c694ae3bce4ab44c
https://doi.org/10.1016/j.physb.2007.10.273
https://doi.org/10.1016/j.physb.2007.10.273
Magnetism and superconductivity in the heavy-fermion compound CeCu2Si2 studied by neutron scattering
Autor:
C. Geibel, Astrid Schneidewind, J. Arndt, Hirale S. Jeevan, Frank Steglich, Oliver Stockert, H. Schneider, M. Loewenhaupt
Publikováno v:
Physica B: Condensed Matter. 403:973-976
We report on inelastic neutron scattering experiments on the heavy-fermion superconductor CeCu2Si2 to study the magnetic excitation spectrum in single crystals. Elastic short-range magnetic correlations have been observed in the superconducting state
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7fd3bd400c64762cfc9eae6e540927e2
https://doi.org/10.1016/j.physb.2007.10.110
https://doi.org/10.1016/j.physb.2007.10.110
Publikováno v:
Neutron News. 18:9-13
In cold neutron spectroscopy, there exists an increasing demand for experiments at extreme conditions with the focus on quantum magnetism, new magnetic, superconducting, frustrated or multiferroic materials, heavy-fermion, or low-dimensional systems.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e6945aab91654d7b45fe2448e8d7ae33
https://doi.org/10.1080/10448630701623087
https://doi.org/10.1080/10448630701623087