Commensurate Itinerant Antiferromagnetism in BaFe2AS2: 75As-NMR Studies on a Self-Flux Grown Single Crystal

被引：205

作者：

Kitagawa, Kentaro ^{[1
]}

Katayama, Naoyuki ^{[1
]}

Ohgushi, Kenya ^{[1
,2
]}

Yoshida, Makoto ^{[1
]}

Takigawa, Masashi ^{[1
,2
]}

机构：

[1] Univ Tokyo, Inst Solid State Phys, Chiba 2778581, Japan

[2] TRIP, JST, Chiyoda Ku, Tokyo 1020075, Japan

来源：

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN | 2008年 / 77卷 / 11期

关键词：

BaFe2As2; NMR; itinerant antiferromagnetism; ternary iron arsenide;

D O I：

10.1143/JPSJ.77.114709

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We report results of As-75 nuclear magnetic resonance (NMR) experiments on a self-flux grown single crystal of BaFe2As2. A first-order antiferromagnetic (AF) transition near 135 K was detected by the splitting of NMR lines, which is accompanied by simultaneous structural transition as evidenced by a sudden large change of the electric field gradient tensor at the As site. The NMR results lead almost uniquely to the stripe spin structure in the AF phase. The data of spin-lattice relaxation rate indicate development of anisotropic spin fluctuations of the stripe-type with decreasing, temperature in the paramagentic phase.

引用

页数：6

共 18 条

[1]

BAEK SH, ARXIV08071084

[2]

Carter G C, 1977, METALLIC SHIFTS NMR

[3] Magnetic order close to superconductivity in the iron-based layered LaO1-xFxFeAs systems [J].

de la Cruz, Clarina ;

Huang, Q. ;

Lynn, J. W. ;

Li, Jiying ;

Ratcliff, W., II ;

Zarestky, J. L. ;

Mook, H. A. ;

Chen, G. F. ;

Luo, J. L. ;

Wang, N. L. ;

Dai, Pengcheng .

NATURE, 2008, 453 (7197) :899-902

[4] 75As NMR study of the ternary iron arsenide BaFe2AS2 [J].

Fukazawa, Hideto ;

Hirayama, Kenji ;

Kondo, Kenji ;

Yamazaki, Takehiro ;

Kohori, Yoh ;

Takeshita, Nao ;

Miyazawa, Kiichi ;

Kito, Hijiri ;

Eisaki, Hiroshi ;

Iyo, Akira .

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 2008, 77 (09)

[5] Lattice and magnetic instabilities in CaFe2As2:: A single-crystal neutron diffraction study [J].

Goldman, A. I. ;

Argyriou, D. N. ;

Ouladdiaf, B. ;

Chatterji, T. ;

Kreyssig, A. ;

Nandi, S. ;

Ni, N. ;

Bud'ko, S. L. ;

Canfield, P. C. ;

McQueeney, R. J. .

PHYSICAL REVIEW B, 2008, 78 (10)

[6]

HUANG Q, ARXIV08062776

[7] Iron-based layered superconductor La[O1-xFx]FeAs (x=0.05-0.12) with Tc=26 K [J].

Kamihara, Yoichi ;

Watanabe, Takumi ;

Hirano, Masahiro ;

Hosono, Hideo .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2008, 130 (11) :3296-+

[8]

KANEKO K, ARXIV08072608

[9] Superconductivity at 54 K in F-free NdFeAsO1-y [J].

Kito, Hijiri ;

Eisaki, Hiroshi ;

Iyo, Akira .

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 2008, 77 (06)

[10] Evolution from itinerant antiferromagnet to unconventional superconductor with fluorine doping in LaFeAs(O1-xFx) revealed by 75As and 139La nuclear magnetic resonance [J].

Nakai, Yusuke ;

Ishida, Kenji ;

Kamihara, Yoichi ;

Hirano, Masahiro ;

Hosono, Hideo .

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 2008, 77 (07)

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