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Critical behavior at paramagnetic to ferrimagnetic phase transition in A-site ordered perovskite CaCu3Cr2Nb2O12

文献类型：期刊论文

作者Li, Sumei4,5; Shu, Mingfang4,5; Wang, Meng4; Pan, Chengbing4,5; Zhao, Gaochao4,5; Yin, Lihua4; Song, Wenhai4; Yang, Jie1,4; Zhu, Xuebin4; Sun, Yupin2,3,4
刊名PHYSICA B-CONDENSED MATTER
出版日期2023
卷号648
ISSN号0921-4526
关键词Magnetic properties Critical behavior High pressure and high temperature synthesis
DOI10.1016/j.physb.2022.414376
通讯作者Yang, Jie(jyang@issp.ac.cn)
英文摘要A new perovskite-type oxide, CaCu3Cr2Nb2O12, has been synthesized at 10 GPa and 1100 degrees C. The compound crystallizes in space group Im3 with 1:3 ordered Ca and Cu cations at the A sites and disordered Nb cations at the octahedral B sites. CaCu3Cr2Nb2O12 exhibits a paramagnetic-ferrimagnetic transition around 192.3 K and the Arrott plots manifest this transition is a second-order transition. We investigate the critical behavior of CaCu3Cr2Nb2O12 using the modified Arrott plots, Kouvel-Fisher plot, and the theory. The estimated critical exponents fi, y and 6, which yield fi = 0.465 +/- 0.006, y = 1.312 +/- 0.019 6= 3.833 +/- 0.019 with TC = 197 K, fall within the predicted values from the mean-field model and dimensional Heisenberg model. The renormalization group analysis suggests that the exchange interaction decays as J(r) similar to r-4.871, indicating the magnetic interactions may be long-range coupling in CaCu3Cr2Nb2O12.
WOS关键词NEGATIVE THERMAL-EXPANSION ; INTERSITE CHARGE-TRANSFER ; HIGH-PRESSURE SYNTHESIS ; MAGNETORESISTANCE ; NICKEL ; IRON
资助项目National Key Research and Development Program of China[2017YFA0403502] ; National Natural Science Foundation of China ; Chinese Academy of Sciences' Large-Scale Scientific Facility[U1832115]
WOS研究方向Physics
语种英语
出版者ELSEVIER
WOS记录号WOS:000880803700002
资助机构National Key Research and Development Program of China ; National Natural Science Foundation of China ; Chinese Academy of Sciences' Large-Scale Scientific Facility
源URL[http://ir.hfcas.ac.cn:8080/handle/334002/130363]  
专题中国科学院合肥物质科学研究院
通讯作者Yang, Jie
作者单位1.Chinese Acad Sci, Inst Solid State Phys, POB 1129, Hefei 230031, Anhui, Peoples R China
2.Chinese Acad Sci, High Magnet Field Lab, Hefei 230031, Peoples R China
3.Nanjing Univ, Collaborat Innovat Ctr Adv Microstruct, Nanjing 210093, Peoples R China
4.Chinese Acad Sci, Inst Solid State Phys, Key Lab Mat Phys, Hefei 230031, Peoples R China
5.Univ Sci & Technol China, Hefei 230026, Peoples R China
推荐引用方式
GB/T 7714		 Li, Sumei,Shu, Mingfang,Wang, Meng,et al. Critical behavior at paramagnetic to ferrimagnetic phase transition in A-site ordered perovskite CaCu3Cr2Nb2O12[J]. PHYSICA B-CONDENSED MATTER,2023,648.
APA Li, Sumei.,Shu, Mingfang.,Wang, Meng.,Pan, Chengbing.,Zhao, Gaochao.,...&Sun, Yupin.(2023).Critical behavior at paramagnetic to ferrimagnetic phase transition in A-site ordered perovskite CaCu3Cr2Nb2O12.PHYSICA B-CONDENSED MATTER,648.
MLA Li, Sumei,et al."Critical behavior at paramagnetic to ferrimagnetic phase transition in A-site ordered perovskite CaCu3Cr2Nb2O12".PHYSICA B-CONDENSED MATTER 648(2023).

入库方式： OAI收割

来源：合肥物质科学研究院

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