Anisotropy in BaFe2Se3 single crystals with double chains of FeSe tetrahedra

Title
Anisotropy in BaFe2Se3 single crystals with double chains of FeSe tetrahedra
Authors
류혜진Hechang LeiAnatoly I. FrenkelC. Petrovic
Issue Date
2011-12
Publisher
Physical review B, Condensed matter and materials physics
Citation
VOL 84, NO 21, 214511
Abstract
We studied the anisotropy in physical properties of Ba1.00(4)Fe1.9(1)Se3.1(1) single crystals. BaFe2Se3 is a semiconductor below 300 K. Magnetization measurements show that there is a crossover from short-range antiferromagnetic (AFM) correlations at room temperature to a long-range AFM order with T-N = 255 K. The anisotropy of magnetization is consistent with the previous neutron results. This crossover is supported by the heat-capacity measurement, where the phase-transition peak is absent at 255 K. The superconducting transition at about 10 K is likely due to the small amount of beta-FeSe impurities.
URI
http://pubs.kist.re.kr/handle/201004/70303
ISSN
2469-9950
Appears in Collections:
KIST Publication > Article
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