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A-site ordered perovskite CaCu3Cu2Ir2O12-delta with square-planar and octahedral coordinated Cu ions
Zhao, Q; Yin, YY; Dai, JH; Shen, X; Hu, ZW; Yang, JY; Wang, QT; Yu, RC; Li, XD; Long, YW; Li XD(李晓东)
2016
Source PublicationCHINESE PHYSICS B
ISSN1674-1056
EISSN1741-4199
Volume25Issue:2Pages:20701
SubtypeArticle
AbstractA novel CaCu3Cu2Ir2O12-delta polycrystalline sample was synthesized at 8 GPa and 1373 K. Rietveld structural analysis shows that this compound crystallizes in an AA(3)'B4O12-type A-site ordered perovskite structure with space group Im-3. X-ray absorption spectra reveal a +2-charge state for both the square-planar and octahedral coordinated Cu ions, and the valence state of Ir is found to be about +5. Although the A-site Ca and the A'-site Cu2+ are 1:3 ordered at fixed atomic positions, the distribution of B-site Cu2+ and Ir5+ is disorderly. As a result, no long-range magnetic ordering is observed at temperatures down to 2 K. Electrical transport and heat capacity measurements demonstrate itinerant electronic behavior. The crystal structure is stable with pressure up to 35.7 GPa at room temperature.
Keywordhigh pressure synthesis A-site ordered perovskite valence state magnetic property
DOI10.1088/1674-1056/25/2/020701
Indexed BySCI ; ADS
Language英语
WOS IDWOS:000370179100014
ADS Bibcode2016ChPhB..25b0701Q
ADS URLhttps://ui.adsabs.harvard.edu/abs/2016ChPhB..25b0701Q
ADS CITATIONShttps://ui.adsabs.harvard.edu/abs/2016ChPhB..25b0701Q/citations
Citation statistics
Cited Times:1 [ADS]
Document Type期刊论文
Identifierhttp://ir.ihep.ac.cn/handle/311005/247932
Collection多学科研究中心
Recommended Citation
GB/T 7714
Zhao, Q,Yin, YY,Dai, JH,et al. A-site ordered perovskite CaCu3Cu2Ir2O12-delta with square-planar and octahedral coordinated Cu ions[J]. CHINESE PHYSICS B,2016,25(2):20701.
APA Zhao, Q.,Yin, YY.,Dai, JH.,Shen, X.,Hu, ZW.,...&李晓东.(2016).A-site ordered perovskite CaCu3Cu2Ir2O12-delta with square-planar and octahedral coordinated Cu ions.CHINESE PHYSICS B,25(2),20701.
MLA Zhao, Q,et al."A-site ordered perovskite CaCu3Cu2Ir2O12-delta with square-planar and octahedral coordinated Cu ions".CHINESE PHYSICS B 25.2(2016):20701.
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