Zobrazeno 1 - 10
of 87
pro vyhledávání: '"Pomjakushin, V. Yu."'
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:
Zvereva, E. A., Raganyan, G. V., Vasilchikova, T. M., Nalbandyan, V. B., Gafurov, D. A., Vavilova, E. L., Zakharov, K. V., Koo, H. -J., Pomjakushin, V. Yu., Susloparova, A. E., Kurbakov, A. I., Vasiliev, A. N., Whangbo, M. -H.
The manganese tellurate Li2MnTeO6 consists of trigonal spin lattices made up of Mn4+ (d3, S = 3/2) ions. The magnetic properties of this compound were characterized by several experimental techniques, which include magnetic susceptibility, specific h
Externí odkaz:
http://arxiv.org/abs/2010.05568
Akademický článek
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Autor:
Medarde, M., Mena, M., Gavilano, J. L., Pomjakushina, E., Sugiyama, J., Kamazawa, K., Pomjakushin, V. Yu., Sheptyakov, D., Batlogg, B., Ott, H. R., Mansson, M., Juranyi, F.
Publikováno v:
Phys. Rev. Lett. 110, 266401 (2013)
We report the observation of a stepwise "melting" of the low-temperature Na-vacancy order in the layered transition metal oxide Na0.7CoO2. High-resolution neutron powder diffraction indicates the existence of two first-order structural transitions, o
Externí odkaz:
http://arxiv.org/abs/1301.5827
Publikováno v:
Physical Review B 86, 014433 (2012)
The low-temperature crystal structure of BaCuSi2O6 has been investigated with high-resolution synchrotron x-ray and neutron powder diffraction techniques and has been found to be on average (ignoring the incommensurate modulation) orthorhombic, with
Externí odkaz:
http://arxiv.org/abs/1208.4499
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
Autor:
Zhigadlo, N. D., Katrych, S., Bendele, M., Moll, P. J. W., Tortello, M., Weyeneth, S., Pomjakushin, V. Yu., Kanter, J., Puzniak, R., Bukowski, Z., Keller, H., Gonnelli, R. S., Khasanov, R., Karpinski, J., Batlogg, B.
Publikováno v:
Phys. Rev. B 84, 134526 (2011)
Polycrystalline samples and single crystals of SmFeAs1-xPxO1-y were synthesized and grown employing different synthesis methods and annealing conditions. Depending on the phosphorus and oxygen content, the samples are either magnetic or superconducti
Externí odkaz:
http://arxiv.org/abs/1107.5715
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