Temperature- and magnetic field-dependence of exchange bias in SrCoO2.29 ceramics | Zendy

Liang Xie | Zendy; Haoliang Huang | Zendy; Yang Lu | Zendy

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Temperature- and magnetic field-dependence of exchange bias in SrCoO2.29 ceramics

Author(s) -

Liang Xie,

Haoliang Huang,

Yang Lu

Publication year - 2017

Publication title -

aip advances

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.421

H-Index - 58

ISSN - 2158-3226

DOI - 10.1063/1.4974997

Subject(s) - exchange bias , antiferromagnetism , ferromagnetism , condensed matter physics , paramagnetism , materials science , ceramic , coupling (piping) , magnetic field , magnetization , metallurgy , magnetic anisotropy , physics , quantum mechanics

A cation’s oxidation state in a transition metal oxide may significantly change its physical and chemical properties. In this work, magnetic properties of both cubic SrCoO2.29 and hexagonal SrCoO2.50 ceramics, annealed following a selected yet simple process, have been studied. The SrCoO2.50 ceramics annealed in air displays an unusual paramagnetic property, and the SrCoO2.29 quenched into water shows a short-range ferromagnetic coupling in the antiferromagnetic background. Exchange coupling at the ferromagnetic/antiferromagnetic interfaces brings out an obvious exchange bias effect in the SrCoO2.29 sample. Due to its complicated magnetic states, the exchange bias effect presents strong temperature and cooling field dependences

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