Role of doped Ru in coercivity-enhanced La0.6Sr0.4MnO3 thin film studied by x-ray magnetic circular dichroism

被引：25

作者：

Harano, T. ^{[1
]}

Shibata, G. ^{[1
]}

Ishigami, K. ^{[2
]}

Takashashi, Y. ^{[1
]}

Verma, V. K. ^{[1
]}

Singh, V. R. ^{[1
]}

Kadono, T. ^{[1
]}

Fujimori, A. ^{[1
,3
]}

Takeda, Y. ^{[3
]}

Okane, T. ^{[3
]}

Saitoh, Y. ^{[3
]}

Yamagami, H. ^{[4
]}

Koide, T. ^{[5
]}

Yamada, H. ^{[6
]}

Sawa, A. ^{[6
]}

Kawasaki, M. ^{[7
]}

Tokura, Y. ^{[7
]}

Tanaka, A. ^{[8
]}

机构：

[1] Univ Tokyo, Dept Phys, Bunkyo Ku, Tokyo 1130033, Japan

[2] Univ Tokyo, Dept Complex Sci & Engn, Kashiwa, Chiba 2778561, Japan

[3] Japan Atom Energy Agcy JAEA, Quantum Beam Sci Directorate, Mikazuki, Hyogo 6795148, Japan

[4] Kyoto Sangyo Univ, Dept Phys, Kyoto 6038555, Japan

[5] High Energy Accelerator Res Org KEK Photon Factor, Tsukuba, Ibaraki 3050016, Japan

[6] Natl Inst Adv Ind Sci & Technol, Tsukuba, Ibaraki 3058562, Japan

[7] Univ Tokyo, Dept Appl Phys, Bunkyo Ku, Tokyo 1130033, Japan

[8] Hiroshima Univ, Dept Quantum Matter, ADSM, Higashihiroshima, Hiroshima 7398530, Japan

来源：

APPLIED PHYSICS LETTERS | 2013年 / 102卷 / 22期

关键词：

PHYSICS; STATE;

D O I：

10.1063/1.4808090

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The coercivity of La1-xSrxMnO3 thin films can be enhanced by Ru substitution for Mn. In order to elucidate its mechanism, we performed soft x-ray absorption and magnetic circular dichroism measurements at the Ru M-2,M-3 and Mn L-2,L-3 edges. We found that the spin direction of Ru and Mn are opposite and that Ru has a finite orbital magnetic moment. Cluster-model analysis indicated that the finite orbital magnetic moment as well as the reduced spin moment of Ru result from local lattice distortion caused by epitaxial strain from the SrTiO3 substrate in the presence of spin-orbit interaction. (C) 2013 AIP Publishing LLC.

引用

页数：4

共 18 条

[1] X-RAY CIRCULAR-DICHROISM AND LOCAL MAGNETIC-FIELDS [J].

CARRA, P ;

THOLE, BT ;

ALTARELLI, M ;

WANG, XD .

PHYSICAL REVIEW LETTERS, 1993, 70 (05) :694-697

[2]

Chen J., 2013, COMMUNICATION

[3]

Herman F, 1963, ATOMIC STRUCTURE CAL

[4]

Jonker G. H., 1950, J PHYS SOC JPN, V16, P377

[5] Phase-Sensitive Observation of a Spin-Orbital Mott State in Sr2IrO4 [J].

Kim, B. J. ;

Ohsumi, H. ;

Komesu, T. ;

Sakai, S. ;

Morita, T. ;

Takagi, H. ;

Arima, T. .

SCIENCE, 2009, 323 (5919) :1329-1332

[6] Close correlation between the magnetic moments, lattice distortions, and hybridization in LaMnO3 and La1-xSrxMnO3+δ:: Doping-dependent magnetic circular X-ray dichroism study -: art. no. 246404 [J].

Koide, T ;

Miyauchi, H ;

Okamoto, J ;

Shidara, T ;

Sekine, T ;

Saitoh, T ;

Fujimori, A ;

Fukutani, H ;

Takano, M ;

Takeda, Y .

PHYSICAL REVIEW LETTERS, 2001, 87 (24) :246404-1

[7] Orbital-state-mediated phase-control of manganites [J].

Konishi, Y ;

Fang, Z ;

Izumi, M ;

Manako, T ;

Kasai, M ;

Kuwahara, H ;

Kawasaki, M ;

Terakura, K ;

Tokura, Y .

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 1999, 68 (12) :3790-3793

[8]

MANN JB, LASL3690

[9] Spin-orbit coupling in the Mott insulator Ca2RuO4 -: art. no. 077202 [J].

Mizokawa, T ;

Tjeng, LH ;

Sawatzky, GA ;

Ghiringhelli, G ;

Tjernberg, O ;

Brookes, NB ;

Fukazawa, H ;

Nakatsuji, S ;

Maeno, Y .

PHYSICAL REVIEW LETTERS, 2001, 87 (07) :77202-1

[10] Soft x-ray magnetic circular dichroism study of Ca1-xSrxRuO3 across the ferromagnetic quantum phase transition [J].

Okamoto, J. ;

Okane, T. ;

Saitoh, Y. ;

Terai, K. ;

Fujimori, S. -I. ;

Muramatsu, Y. ;

Yoshii, K. ;

Mamiya, K. ;

Koide, T. ;

Fujimori, A. ;

Fang, Z. ;

Takeda, Y. ;

Takano, M. .

PHYSICAL REVIEW B, 2007, 76 (18)

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