Spin-reorientation magnetic transitions in Mn-doped SmFeO3

被引：51

作者：

Kang, Jian ^{[1
,2
]}

Yang, Yali ^{[1
,2
]}

Qian, Xiaolong ^{[1
,2
]}

Xu, Kai ^{[1
,2
]}

Cui, Xiaopeng ^{[1
,2
]}

Fang, Yifei ^{[1
,2
]}

Chandragiri, Venkatesh ^{[1
,2
]}

Kang, Baojuan ^{[1
,2
]}

Chen, Bin ^{[3
]}

Stroppa, Alessandro ^{[1
,2
,4
]}

Cao, Shixun ^{[1
,2
,5
]}

Zhang, Jincang ^{[1
,2
,5
]}

Ren, Wei ^{[1
,2
,5
]}

机构：

[1] Shanghai Univ, Dept Phys, Int Ctr Quantum & Mol Struct, Shanghai 200444, Peoples R China

[2] Shanghai Univ, Mat Genome Inst, Shanghai 200444, Peoples R China

[3] Hangzhou Normal Univ, Dept Phys, Hangzhou Key Lab Quantum Matter, Hangzhou 310036, Zhejiang, Peoples R China

[4] CNR SPIN, Laquila, Italy

[5] Shanghai Univ, Shanghai Key Lab High Temp Superconductors, Shanghai 200444, Peoples R China

来源：

IUCRJ | 2017年 / 4卷

基金：

中国国家自然科学基金;

关键词：

spin reorientation transitions; rare earth perovskites; magnetic phase transitions; Mn doping; RARE-EARTH ORTHOCHROMITES; REVERSAL; DYFEO3; FIELD;

D O I：

10.1107/S205225251700793X

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Spin reorientation is a magnetic phase transition in which rotation of the magnetization vector with respect to the crystallographic axes occurs upon a change in the temperature or magnetic field. For example, SmFeO3 shows a magnetization rotation from the c axis above 480 K to the a axis below 450 K, known as the Gamma(4) -> Gamma(2) transition. This work reports the successful synthesis of the new single-crystal perovskite SmFe0.75Mn0.25O3 and finds interesting spin reorientations above and below room temperature. In addition to the spin reorientation of the Gamma(4) -> Gamma(2) magnetic phase transition observed at around T-SR2 = 382 K, a new spin reorientation, Gamma(2) -> Gamma(1), was seen at around T-SR1 = 212 K due to Mn doping, which could not be observed in the parent rare earth perovskite compound. This unexpected spin configuration has complete antiferromagnetic order without any canting-induced weak ferromagnetic moment, resulting in zero magnetization in the low-temperature regime. M-T and M-H measurements have been made to study the temperature and magnetic-field dependence of the observed spin reorientation transitions.

引用

页码：598 / 603

页数：6

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