Open AccessFabrication and characterization of nanostructured Fe3S4, an isostructural compound of half-metallic Fe3O4
Author(s) -
Peng Li,
Chuan Xia,
Qiang Zhang,
Zaibing Guo,
Wenyao Cui,
Haili Bai,
Husam N. Alshareef,
Xixiang Zhang
Publication year - 2015
Publication title -
journal of applied physics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.699
H-Index - 319
eISSN - 1089-7550
pISSN - 0021-8979
DOI - 10.1063/1.4922578
Subject(s) - electrical resistivity and conductivity , condensed matter physics , metal , materials science , hydrothermal circulation , isostructural , magnetoresistance , spinel , magnetic moment , hall effect , conductivity , saturation (graph theory) , hall conductivity , mineralogy , chemistry , crystal structure , metallurgy , crystallography , geology , magnetic field , physics , mathematics , quantum mechanics , combinatorics , seismology
High-purity, well-crystallized spinel Fe3S4 nanoplatelets were synthesized by the hydrothermal method, and the saturation magnetic moment of Fe3S4 was measured at 1.83 μB/f.u. The temperature-dependent resistivity of Fe3S4 was metallic-like for T < 180 K: room-temperature resistivity was measured at 7.711 × 103 μΩ cm. The anomalous Hall conductivity of Fe3S4 decreased with increasing longitudinal conductivity, in sharp contrast with the accepted theory of the anomalous Hall effect in a dirty-metal regime. Furthermore, negligible spin-dependent magnetoresistance was observed. Band structure calculations confirmed our experimental observations that Fe3S4 is a metal and not a half metal as expected
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