Suppressed antiferromagnetic ordering and enhanced electrical conduction in doped iridate Sr2-xPrxIrO4

被引：4

作者：

Liu, Hui ^{[1
]}

Liang, Dandan ^{[2
,3
]}

Bian, Jian ^{[1
]}

Feng, Yuan ^{[1
]}

Xie, Yu ^{[1
]}

Fang, Baolong ^{[1
]}

机构：

[1] Hefei Univ, Coll Adv Mfg Engn, Hefei 230601, Peoples R China

[2] Anhui Polytech Univ, Coll Mech & Automot Engn, Wuhu 241000, Peoples R China

[3] Chinese Acad Sci, High Magnet Field Lab, Hefei 230031, Peoples R China

来源：

MATERIALS RESEARCH EXPRESS | 2020年 / 7卷 / 02期

基金：

中国国家自然科学基金;

关键词：

iridates; magnetism; electric transport properties; electron doping; TRANSITION;

D O I：

10.1088/2053-1591/ab5f6d

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Sr2IrO4 has been shown to exhibit a novel J(eff) = 1/2 Mott spin-orbit insulating state with antiferromagnetic ordering. In the present investigation, the effects of Pr substitution at Sr-site on structural, magnetic and electrical properties are studied in Sr2IrO4. Pr-doped samples still retain the insulating behavior, but with the increase of Pr doping concentration, the resistivity decreases. The magnetic properties show that long-range antiferromagnetic order is collapsed when the Pr doping content increases up to 20%, which may results from a competition between the AFM (Ir 5d electrons) and ferromagnetic (Pr 4 f electrons) coupling. In addition, Pr doping induces a spin glasslike state at low temperatures.

引用

页数：9

共 31 条

[21] Epitaxial strain effect on the Jeff=1/2 moment orientation in Sr2IrO4 thin films [J].

Miao, Ludi ;

Xu, Hong ;

Mao, Z. Q. .

PHYSICAL REVIEW B, 2014, 89 (03)

[22] Electronic structures of layered perovskite Sr2MO4 (M=Ru, Rh, and Ir) [J].

Moon, S. J. ;

Kim, M. W. ;

Kim, K. W. ;

Lee, Y. S. ;

Kim, J. -Y. ;

Park, J. -H. ;

Kim, B. J. ;

Oh, S. -J. ;

Nakatsuji, S. ;

Maeno, Y. ;

Nagai, I. ;

Ikeda, S. I. ;

Cao, G. ;

Noh, T. W. .

PHYSICAL REVIEW B, 2006, 74 (11)

[23] Spin-orbit tuned metal-insulator transitions in single-crystal Sr2Ir1-xRhxO4 (0 ≤ x ≤ 1) [J].

Qi, T. F. ;

Korneta, O. B. ;

Li, L. ;

Butrouna, K. ;

Cao, V. S. ;

Wan, Xiangang ;

Schlottmann, P. ;

Kaul, R. K. ;

Cao, G. .

PHYSICAL REVIEW B, 2012, 86 (12)

[24] Insulator-metal transition in deep Sr-vacant spin-orbit Mott insulator S2IrO4 [J].

Sun, Xuanyong ;

Liu, S. L. ;

Wang, Haiyun ;

Li, Bin ;

Cheng, Jie ;

Wang, Z. H. .

JOURNAL OF ALLOYS AND COMPOUNDS, 2016, 687 :712-719

[25] Decoupling of the antiferromagnetic and insulating states in Tb-doped Sr2IrO4 [J].

Wang, J. C. ;

Aswartham, S. ;

Ye, Feng ;

Terzic, J. ;

Zheng, H. ;

Haskel, Daniel ;

Chikara, Shalinee ;

Choi, Yong ;

Schlottmann, P. ;

Custelcean, Radu ;

Yuan, S. J. ;

Cao, G. .

PHYSICAL REVIEW B, 2015, 92 (21)

[26] Decreased Energy Gap and Enhanced Conductivity in Zn-Doped Sr2IrO4 [J].

Wang, Yongjian ;

Yao, Liming ;

Yao, Jianming ;

Zhu, Wenka ;

Zhang, Changjin .

JOURNAL OF SUPERCONDUCTIVITY AND NOVEL MAGNETISM, 2019, 32 (06) :1583-1587

[27] Electron-Doped Sr2IrO4: An Analogue of Hole-Doped Cuprate Superconductors Demonstrated by Scanning Tunneling Microscopy [J].

Yan, Y. J. ;

Ren, M. Q. ;

Xu, H. C. ;

Xie, B. P. ;

Tao, R. ;

Choi, H. Y. ;

Lee, N. ;

Choi, Y. J. ;

Zhang, T. ;

Feng, D. L. .

PHYSICAL REVIEW X, 2015, 5 (04)

[28] From Jeff=1/2 insulator to p-wave superconductor in single-crystal Sr2Ir1-xRuxO4 (0 ≤ x ≤ 1) [J].

Yuan, S. J. ;

Aswartham, S. ;

Terzic, J. ;

Zheng, H. ;

Zhao, H. D. ;

Schlottmann, P. ;

Cao, G. .

PHYSICAL REVIEW B, 2015, 92 (24)

[29] Evolution of magnetism in single-crystal Ca2Ru1-xIrxO4 (0 ≤ x ≤ 0.65) [J].

Yuan, S. J. ;

Terzic, J. ;

Wang, J. C. ;

Li, L. ;

Aswartham, S. ;

Song, W. H. ;

Ye, F. ;

Cao, G. .

PHYSICAL REVIEW B, 2015, 92 (02)

[30] Physical properties of the 5M BaIrO3: A new weak ferromagnetic iridate synthesized under high pressure [J].

Zhao, J. G. ;

Yang, L. X. ;

Yu, Y. ;

Li, F. Y. ;

Yu, R. C. ;

Jin, C. Q. .

SOLID STATE COMMUNICATIONS, 2010, 150 (1-2) :36-39

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