journal article·2017-01-01Open access

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

L. Xie, H. L. Huang, Y. L. Lu

AIP Advances· Volume 7· Issue 1

Abstract

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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Research context

OpenAlex topics: Magnetic and transport properties of perovskites and related materials · Advanced Condensed Matter Physics · Multiferroics and related materials

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

North China University of Technology 1 Department of Physical and Chemical Sciences, , Beijing 100144, People’s Republic of China

University of Science and Technology of China 2 CAS Key Laboratory of Materials for Energy Conversion, Department of Materials Science and Engineering and National Synchrotron Radiation Laboratory, , Hefei 230026, People’s Republic of China

University of Science and Technology of China 3 Synergetic Innovation Center of Quantum Information & Quantum Physics, , Hefei 230026, People’s Republic of China

Funding

General Program from Beijing Board of Education

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