Zobrazeno 1 - 10
of 123
pro vyhledávání: '"V. Felea"'
Autor:
Y. V. Tymoshenko, Y. A. Onykiienko, T. Müller, R. Thomale, S. Rachel, A. S. Cameron, P. Y. Portnichenko, D. V. Efremov, V. Tsurkan, D. L. Abernathy, J. Ollivier, A. Schneidewind, A. Piovano, V. Felea, A. Loidl, D. S. Inosov
Publikováno v:
Physical Review X, Vol 7, Iss 4, p 041049 (2017)
Low-energy spin excitations in any long-range ordered magnetic system in the absence of magnetocrystalline anisotropy are gapless Goldstone modes emanating from the ordering wave vectors. In helimagnets, these modes hybridize into the so-called helim
Externí odkaz:
https://doaj.org/article/a545641831dd4f59be2539bb13b54d22
Akademický článek
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Autor:
Dmytro S. Inosov, Sergei Zherlitsyn, Dharmendra Shukla, D. J. Voneshen, Y. O. Onykiienko, Martin Boehm, Vladimir Tsurkan, Narayan Prasai, Alois Loidl, A. Akopyan, Mathias Doerr, Y. V. Tymoshenko, Joshua L. Cohn, Denis Gorbunov, V. Felea
Publikováno v:
Physical Review B. 102
Anisotropic low-temperature properties of the cubic spinel helimagnet $\mathrm{Zn}{\mathrm{Cr}}_{2}{\mathrm{Se}}_{4}$ in the single-domain spin-spiral state are investigated by a combination of neutron scattering, thermal conductivity, ultrasound vel
Autor:
Atsuhiko Miyata, Oliver Portugall, Hidemaro Suwa, Alois Loidl, J. Wosnitza, Vladimir Tsurkan, H.-A. Krug von Nidda, L. Prodan, Joachim Deisenhofer, T. Nomura, Y. Skourski, V. Felea, Sergei Zherlitsyn
Publikováno v:
Physical Review B. 101
In antiferromagnets, the interplay of spin frustration and spin-lattice coupling has been extensively studied as the source of complex spin patterns and exotic magnetism. Here, we demonstrate that, although neglected in the past, the spin-lattice cou
Autor:
P. T. Cong, V. Felea, Joachim Deisenhofer, Y. Skourski, Alois Loidl, Atsuhiko Miyata, Jochen Wosnitza, H.-A. Krug von Nidda, Sergei Zherlitsyn, Denis Gorbunov, Vladimir Tsurkan, Oliver Portugall, T. Nomura, S. Widmann, L. Prodan, Zhaosheng Wang
Publikováno v:
Physical Review B. 101
The high-field (H,T) phase diagram of the multiferroic lacunar spinel $\mathrm{Ge}{\mathrm{V}}_{4}{\mathrm{S}}_{8}$ has been studied by ultrasound, magnetization, and pyrocurrent experiments in magnetic fields up to 60 T. The title compound consists
Autor:
V. Felea, Y. Gritsenko, Vladimir Tsurkan, P. T. Cong, Jochen Wosnitza, Sergei Zherlitsyn, L. Prodan
Publikováno v:
Low Temperature Physics 43(2017), 1618-1621
We report results of magnetic and ultrasound studies of the sulfide spinel CoCr2S4, for which the multiferroicity has recently been suggested. Clear anomalies in the magnetic and acoustic properties have been observed at TN = 222 K and in applied mag
Autor:
Douglas L. Abernathy, Stephan Rachel, Dmitry V. Efremov, Tobias Müller, Astrid Schneidewind, Jacques Ollivier, Dmytro S. Inosov, Vladimir Tsurkan, Andrea Piovano, Y. A. Onykiienko, Alois Loidl, P. Y. Portnichenko, V. Felea, A. S. Cameron, Ronny Thomale, Y. V. Tymoshenko
Publikováno v:
Physical Review X. 7
Wave excitations (magnons) along the helical arrangement of magnetic moments in helimagnets generally travel along this helix, while orthogonal magnons are thought to require much higher energy. New experiments reveal the existence of low-energy orth
Autor:
V. Felea, Vladimir Tsurkan, Joachim Deisenhofer, L. Prodan, I. Filippova, S. Widmann, A. Günther, Alois Loidl, H.-A. Krug von Nidda, V. Kravtsov
Publikováno v:
Physical Review B. 96
We report structure, susceptibility, and specific heat studies of stoichiometric and off-stoichiometric poly- and single crystals of the $A$-site spinel compound $\mathrm{FeS}{\mathrm{c}}_{2}{\mathrm{S}}_{4}$. In stoichiometric samples, no long-range
Publikováno v:
Journal of Physical Chemistry C
The series of Cr-chalcogenide spinels ACr2X4 (A = Zn, Cd, Hg; X = S, Se) exhibits a rich phase diagram upon compression, as revealed by our recent investigations. There exist, however, some open questions regarding the role of cations in the observed
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4c29e6858cbc41ccd688daf2afab7f14
http://doi.crossref.org/servlet/query?format=unixref&pid=bib@gfz-potsdam.de&id=10.1021/acs.jpcc.6b11253
http://doi.crossref.org/servlet/query?format=unixref&pid=bib@gfz-potsdam.de&id=10.1021/acs.jpcc.6b11253
Autor:
V. Felea, J. Wosnitza, Dmytro S. Inosov, Sergei Zherlitsyn, A. S. Cameron, Y. V. Tymoshenko, Vladimir Tsurkan, Jorge L. Gavilano, Alois Loidl, P. Y. Portnichenko
We performed small-angle neutron scattering (SANS) measurements on the helimagnetic spinel compound ZnCr2Se4. The ground state of this material is a multi-domain spin-spiral phase, which undergoes domain selection in a magnetic field and reportedly e
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5690325ee896ee48f73c770f5c7eb12d