Magnetic ordering and negative thermal expansion in PrFeAsO

被引：93

作者：

Kimber, S. A. J. ^{[1
]}

Argyriou, D. N. ^{[1
]}

Yokaichiya, F. ^{[1
]}

Habicht, K. ^{[1
]}

Gerischer, S. ^{[1
]}

Hansen, T. ^{[2
]}

Chatterji, T. ^{[3
]}

Klingeler, R. ^{[4
]}

Hess, C. ^{[4
]}

Behr, G. ^{[4
]}

Kondrat, A. ^{[4
]}

Buechner, B. ^{[4
]}

机构：

[1] Helmholtz Zentrum Berlin Mat & Energie HZB, D-14109 Berlin, Germany

[2] Inst Max von Laue Paul Langevin, F-38042 Grenoble 9, France

[3] Inst Max Von Laue Paul Langevin, Forschungszentrum Julich Outstn, JCNS, F-38042 Grenoble 9, France

[4] Leibniz Inst Solid State & Mat Res IFW, Dresden, Germany

来源：

PHYSICAL REVIEW B | 2008年 / 78卷 / 14期

关键词：

D O I：

10.1103/PhysRevB.78.140503

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We report the structure and magnetism of PrFeAsO, one of the parent phases of the Fe-As family of superconductors, as measured by neutron powder diffraction. In common with other REFeAsO materials, a tetragonal-orthorhombic phase transition is found on cooling below 136 K and striped Fe magnetism with k=(1,0,1) is detected below similar to 85 K. Our magnetic order-parameter measurements show that the ordered Fe moment along the a axis reaches a maximum at similar to 40 K, below which an anomalous expansion of the c axis sets in that results in a negative thermal volume expansion of 0.015% at 2 K. We propose that this effect, which is suppressed in superconducting samples, is driven by a delicate interplay between Fe and Pr ordered moments.

引用

页数：4

共 18 条

[1] Magnetic order of the iron spins in NdFeAsO [J].

Chen, Ying ;

Lynn, J. W. ;

Li, J. ;

Li, G. ;

Chen, G. F. ;

Luo, J. L. ;

Wang, N. L. ;

Dai, Pengcheng ;

dela Cruz, C. ;

Mook, H. A. .

PHYSICAL REVIEW B, 2008, 78 (06)

[2] 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

[3] Competing orders and spin-density-wave instability in La(O1-xFx) FeAs [J].

Dong, J. ;

Zhang, H. J. ;

Xu, G. ;

Li, Z. ;

Li, G. ;

Hu, W. Z. ;

Wu, D. ;

Chen, G. F. ;

Dai, X. ;

Luo, J. L. ;

Fang, Z. ;

Wang, N. L. .

EPL, 2008, 83 (02)

[4] 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)

[5] The D20 instrument at the ILL: a versatile high-intensity two-axis neutron diffractometer [J].

Hansen, Thomas C. ;

Henry, Paul F. ;

Fischer, Henry E. ;

Torregrossa, Jacques ;

Convert, Pierre .

MEASUREMENT SCIENCE AND TECHNOLOGY, 2008, 19 (03)

[6] Large magnetostriction and negative thermal expansion in the frustrated antiferromagnet ZnCr2Se4 [J].

Hemberger, J. ;

von Nidda, H. -A. Krug ;

Tsurkan, V. ;

Loidl, A. .

PHYSICAL REVIEW LETTERS, 2007, 98 (14)

[7]

HUANG Q, ARXIV08062776

[8] 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-+

[9] Commensurate spin density wave in LaFeAsO:: A local probe study [J].

Klauss, H. -H. ;

Luetkens, H. ;

Klingeler, R. ;

Hess, C. ;

Litterst, F. J. ;

Kraken, M. ;

Korshunov, M. M. ;

Eremin, I. ;

Drechsler, S. -L. ;

Khasanov, R. ;

Amato, A. ;

Hamann-Borrero, J. ;

Leps, N. ;

Kondrat, A. ;

Behr, G. ;

Werner, J. ;

Buechner, B. .

PHYSICAL REVIEW LETTERS, 2008, 101 (07)

[10]

LARSON AC, 1998, 86748 LAUR LOS AL NA

← 1 2 →