Multiple magnetic transitions in SmCoAsO | Zendy

Yongliang Chen | Zendy; Yajing Cui | Zendy; Cuihua Cheng | Zendy; Yong Zhao | Zendy

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Multiple magnetic transitions in SmCoAsO

Author(s) -

Yongliang Chen,

Yajing Cui,

Cuihua Cheng,

Yong Zhao

Publication year - 2011

Publication title -

aip advances

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.421

H-Index - 58

ISSN - 2158-3226

DOI - 10.1063/1.3660768

Subject(s) - condensed matter physics , diamagnetism , ferrimagnetism , paramagnetism , magnetoresistance , antiferromagnetism , electrical resistivity and conductivity , magnetism , ferromagnetism , materials science , magnetic field , magnetization , physics , quantum mechanics

The magnetic properties of SmCoAsO have been investigated. Our results differ from early observations. Complicated magnetism consists of antiferromagnetic, ferromagnetic, ferrimagnetic and paramagnetic, even diamagnetism at low field has been observed. A metamagnetic transition was observed, resulting from a canting of the spins. The interaction between two Co sublattices with canted-structure might take responsibility for the multiple magnetic transitions. Electrical resistivity data indicate that SmCoAsO is metallic conductor with room temperature resistivity of 0.51669 mΩ-cm. Negative magnetoresistance effect suggests a significant suppression of spin-flip scattering by the applied magnetic field. The magnetic phase diagram has been established

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