Zobrazeno 1 - 10
of 44
pro vyhledávání: '"Pomjakushina, E. V."'
Publikováno v:
Phys. Rev. B 109, 144409 (2024)
The crystal and magnetic structures of the spin $S$=1 hexamer cluster fedotovite-like A$_{2}$Cu$_{3}$O(SO$_4$)$_3$ (A$_2$=K$_2$, NaK, Na$_2$) were studied by neutron powder diffraction at temperatures 1.6-290 K. The crystal structures in all compound
Externí odkaz:
http://arxiv.org/abs/2312.11277
Autor:
Nikitin, S. E., Wu, L. S., Sefat, A. S., Shaykhutdinov, K. A., Lu, Z., Meng, S., Pomjakushina, E. V., Conder, K., Ehlers, G., Lumsden, M. D., Kolesnikov, A. I., Barilo, S., Guretskii, S. A., Inosov, D. S., Podlesnyak, A.
Publikováno v:
Phys. Rev. B 98, 064424 (2018)
In this paper we present a comprehensive study of magnetic dynamics in the rare-earth orthoferrite YbFeO$_3$ at temperatures below and above the spin-reorientation (SR) transition $T_{\mathrm{SR}}=7.6$ K, in magnetic fields applied along the $a, b$ a
Externí odkaz:
http://arxiv.org/abs/1808.01269
Magnetic susceptibility $\chi$ of Bi$_{2-x}$Mn$_{x}$Se$_3$ ($x = 0.01-0.2$) was measured in the temperature range $4.2-300$ K. For all the samples, a Curie-Weiss behaviour of $\chi(T)$ was revealed with effective magnetic moments of Mn ions correspon
Externí odkaz:
http://arxiv.org/abs/1509.09026
Autor:
Krzton-Maziopa, A., Pomjakushina, E. V., Pomjakushin, V. Yu., von Rohr, F., Schilling, A., Conder, K.
Publikováno v:
J.Phys.: Condens. Matter 24 (2012) 382202
We report on a new iron selenide superconductor with a TC onset of 45K and the nominal composition Lix(C5H5N)yFe2-zSe2, synthesized via intercalation of dissolved alkaline metal in anhydrous pyridine at room temperature. This superconductor exhibits
Externí odkaz:
http://arxiv.org/abs/1206.7022
Autor:
Pomjakushin, V. Yu., Pomjakushina, E. V., Krzton-Maziopa, A., Conder, K., Chernyshov, D., Svitlyk, V., Bosak, A.
Publikováno v:
J. Phys.: Condens. Matter 24 (2012) 435701
The crystal and magnetic structures of the superconducting iron based chalcogenides RbyFe2-xSe2 have been studied by means of single crystal synchrotron x-ray and high resolution neutron powder diffraction in the temperature range 2-570 K. The ground
Externí odkaz:
http://arxiv.org/abs/1204.5449
Publikováno v:
J. Phys.: Condens. Matter 23 (2011) 156003
Magnetic and crystal structures of superconducting X yFe 2-xSe 2 (X= Rb and K with Tc=31.5 K and 29.5 K) have been studied by neutron powder diffraction at room temperature. Both crystals show ordered iron vacancy pattern and the crystal structure is
Externí odkaz:
http://arxiv.org/abs/1102.3380
Autor:
Pomjakushin, V. Yu., Sheptyakov, D. V., Pomjakushina, E. V., Krzton-Maziopa, A., Conder, K., Chernyshov, D., Svitlyk, V., Shermadini, Z.
Publikováno v:
Physical Review B 83, 144410 (2011)
Neutron and x-ray powder and single crystal synchrotron diffraction of CsyFe2-xSe2 show the presence of superstructure reflections with propagation vector k=[2/5, 1/5, 1] with respect to the average crystal structure I4/mmm (a = 4, c = 15A). The prop
Externí odkaz:
http://arxiv.org/abs/1102.1919
Publikováno v:
JOURNAL OF PHYSICS-CONDENSED MATTER 22, 115601 (2010)
High resolution neutron diffraction shows that the mesoscopic separation into ferromagnetic (FM) and antiferromagnetic (AFM) phases and the FM transition temperature T_C in the perovskite manganite (La_{1-y}Pr_{y})_{0.7}Ca_{0.3}MnO_3 strongly depend
Externí odkaz:
http://arxiv.org/abs/0912.0155
Publikováno v:
PHYSICAL REVIEW B 76, 174433 (2007)
Crystal and magnetic structures of a series of novel quantum spin trimer system Ca3Cu3xNix(PO4)4 (x=0,1,2) were studied by neutron powder diffraction at the temperatures 1.5-290 K. The composition with one Ni per trimer (x=1) has a monoclinic structu
Externí odkaz:
http://arxiv.org/abs/0709.2250
Publikováno v:
Phys. Rev. B 75, 054410 (2007)
The crystal and magnetic structures of the specified CMR manganite system have been studied as a function of $y=(0.2-1)$ across the metal-insulator (MI) transition, and of the oxygen mass ($^{16}$O, $^{18}$O). We quantitatively show how the polaronic
Externí odkaz:
http://arxiv.org/abs/cond-mat/0701244