| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 7888986 | Ceramics International | 2018 | 4 Pages |
Abstract
Single-phase LaCr0.7Cu0.3O3 ceramics was fabricated successfully using high pressure sintering method. A mixed valent state with the coexistence of Cr2+ï¼Cr3+ and Cr4+ was confirmed by X-ray photoelectron spectroscopy measurement. Magnetic measurement results indicate that in addition to antiferromagnetic superexchange interaction of Cr3+ -O2- -Cr3+ accompanied by weak ferromagnetism at high temperature, two types of short-range order ferromagnetism can be observed at low temperature, which could be attributed to double exchange interactions of Cr2+ -O2- -Cr3+ and Cr3+ -O2- -Cr4+, respectively. The results here would enrich the understanding on magnetic interactions in rare-earth chromites.
Related Topics
Physical Sciences and Engineering
Materials Science
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Authors
Rui-Long Wang, Yao-Wen Mao, Cheng-Cheng Zhang, Hai-Bo Xiao, Ling-Fang Xu, Zheng-Cai Xia, Chang-Ping Yang,