Zobrazeno 1 - 10
of 83
pro vyhledávání: '"Landsgesell, S."'
Autor:
Viskadourakis, Z., Radulov, I., Petrović, A. P., Mukherjee, S., Andersen, B. M., Jelbert, G., Headings, N. S., Hayden, S. M., Kiefer, K., Landsgesell, S., Argyriou, D. N., Panagopoulos, C.
Publikováno v:
Phys. Rev. B 85, 214502 (2012)
We report the discovery of a ferroelectric ground state below 4.5 K in highly underdoped La_2CuO_(4+x) accompanied by slow charge dynamics which develop below T~40 K. An anisotropic magnetoelectric response has also been observed, indicating consider
Externí odkaz:
http://arxiv.org/abs/1111.0050
Autor:
Feyerherm, R., Dudzik, E., Valencia, S., Wolter, A. U. B., Milne, C. J., Landsgesell, S., Alber, D., Argyriou, D. N.
Publikováno v:
Phys. Rev. B 82 (2010) 024103
Synchrotron X-ray diffraction investigations of two single crystals of Na_xCoO_2 from different batches with composition x = 0.525-0.530 reveal homogeneous incommensurate sodium ordering with propagation vector (0.53 0.53 0) at room-temperature. The
Externí odkaz:
http://arxiv.org/abs/1004.4990
Autor:
Feyerherm, R., Dudzik, E., Wolter, A. U. B., Valencia, S., Prokhnenko, O., Maljuk, A., Landsgesell, S., Aliouane, N., Bouchenoire, L., Brown, S., Argyriou, D. N.
Publikováno v:
Physical Review B 79, 134426 (2009)
X-ray resonant magnetic scattering studies of rare earth magnetic ordering were performed on perovskite manganites RMnO3 (R = Dy, Gd) in an applied magnetic field. The data reveal that the field-induced three-fold polarization enhancement for H || a
Externí odkaz:
http://arxiv.org/abs/0902.3911
Autor:
Strempfer, J., Bohnenbuck, B., Zegkinoglou, I., Aliouane, N., Landsgesell, S., Zimmermann, M. v., Argyriou, D. N.
Publikováno v:
Phys. Rev. B 78, 024429 (2008)
Multiferroic TbMnO3 is investigated using x-ray diffraction in high magnetic fields. Measurements on first and second harmonic structural reflections due to modulations induced by the Mn and Tb magnetic order are presented as function of temperature
Externí odkaz:
http://arxiv.org/abs/0806.3623
Autor:
Prokhnenko, O., Feyerherm, R., Dudzik, E., Landsgesell, S., Aliouane, N., Chapon, L. C., Argyriou, D. N.
Publikováno v:
Phys. Rev. Lett. 98, 057206 (2007)
Neutron powder diffraction and single crystal x-ray resonant magnetic scattering measurements suggest that Dy plays an active role in enhancing the ferroelectric polarization in multiferroic DyMnO3 above TNDy = 6.5 K. We observe the evolution of an i
Externí odkaz:
http://arxiv.org/abs/cond-mat/0609024
Autor:
Aliouane, N., Argyriou, D. N., Strempfer, J., Zegkinoglou, I., Landsgesell, S., Zimmermann, M. v.
We have used in-field neutron and X-ray single crystal diffraction to measure the incommensurability δ of the crystal and magnetic structure of multiferroic TbMnO3 . We show that the flop in the electric polarization at the critical field HC, for fi
Externí odkaz:
http://arxiv.org/abs/cond-mat/0508634
Autor:
Hartwig, S., Schäfer, N., Schulze, M., Landsgesell, S., Abou-Ras, D., Blum, Ch.G.F., Wurmehl, S., Sokolowski, A., Büchner, B., Prokeš, K.
Publikováno v:
In Physica B: Physics of Condensed Matter 15 February 2018 531:102-109
Revised superconducting phase diagram of hole doped Na$_{x}$(H$_{3}$O)$_{z}$CoO$_{2}\cdot y$H$_{2}$O
Autor:
Milne, C. J., Argyriou, D. N., Chemseddine, A., Aliouane, N., Veira, J., Landsgesell, S., Alber, D.
Publikováno v:
Phys. Rev. Lett. 93, 247007 (2004)
We have studied the superconducting phase diagram of \NaH\space as a function of electronic doping, characterizing our samples both in terms of Na content $x$ and the Co valence state. Our findings are consistent with a recent report that intercalati
Externí odkaz:
http://arxiv.org/abs/cond-mat/0401273
Publikováno v:
In Acta Materialia March 2014 66:232-240
Autor:
Prokes, K., Schulze, M., Hartwig, S., Schäfer, N., Landsgesell, S., Blum, C.G.F., Abou Ras, D., Hacisalihoglu, M.Y., Ressouche, E., Ouladdiaf, B., Hess, C., Büchner, B., Wurmehl, S.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=od______3680::5111d197b7a230f3181688127a0965e3
http://www.helmholtz-berlin.de/pubbin/oai_publication?VT=1&ID=86417
http://www.helmholtz-berlin.de/pubbin/oai_publication?VT=1&ID=86417