Crystal and magnetic structures of Cr1/3NbSe2 from neutron diffraction

Gubkin, A.F. ; Proskurina, E.P. ; Kousaka, Y. ; Sherokalova, E.M. ; Selezneva, N.V. ; Miao, P. ; Lee, S. ; Zhang, J. ; Ishikawa, Y. ; Torii, S. ; Kamiyama, T. ; Campo, J. (Universidad de Zaragoza) ; Akimitsu, J. ; Baranov, N.V.

Resumen: Neutron diffraction measurements of the Cr intercalated niobium diselenide Cr1/3NbSe2 together with magnetization measurements have revealed that this compound exhibits ferromagnetic ordering below TC = 96 K unlike a chiral helimagnetic order observed in the sulfide compound Cr1/3NbS2. As derived from neutron diffraction data, the Cr magnetic moments µCr = 2.83 ± 0.03 µB in Cr1/3NbSe2 are aligned within basal plane. The discrepancy in the magnetic states of Cr1/3NbS2 and Cr1/3NbSe2 is ascribed to the difference in the preferential site occupation of Cr ions in crystal lattices. In Cr1/3NbSe2, the Cr ions are predominantly distributed over 2b Wyckoff site, which determines a centrosymmetric character of the crystal structure unlike Cr1/3NbS2, where the Cr ions are mainly located in 2c position and the crystal structure is non-centrosymmetric.

Idioma: Inglés

DOI: 10.1063/1.4939558

Año: 2016

Publicado en: Journal of Applied Physics 119, 1 (2016), 013903 [6 pp]
ISSN: 0021-8979

Factor impacto JCR: 2.068 (2016)

Categ. JCR: PHYSICS, APPLIED rank: 59 / 147 = 0.401 (2016) - Q2 - T2

Factor impacto SCIMAGO: 0.906 - Physics and Astronomy (miscellaneous) (Q1)

Financiación: info:eu-repo/grantAgreement/ES/MICINN/MAT2011-27233-C02-02

Tipo y forma: Article (Published version)

Área (Departamento): Área Física Materia Condensada (Dpto. Física Materia Condensa.)