Crystal distortions in geometrically frustrated ACr2O4 (A = Zn, Cd)

被引：43

作者：

Lee, S. -H ^{[1
]}

Gasparovic, G.

Broholm, C.

Matsuda, M.

Chung, J.-H.

Kim, Y. J.

Ueda, H.

Xu, G.

Zschack, P.

Kakurai, K.

Takagi, H.

Ratcliff, W.

Kim, T. H.

Cheong, S.-W.

机构：

[1] Univ Virginia, Dept Phys, Charlottesville, VA 22904 USA

[2] Natl Inst Stand & Technol, NIST Ctr Neutron Res, Gaithersburg, MD 20899 USA

[3] Johns Hopkins Univ, Dept Phys & Astron, Baltimore, MD 21218 USA

[4] Japan Atom Energy Res Inst, Adv Sci Res Ctr, Tokai, Ibaraki 3191195, Japan

[5] Univ Toronto, Dept Phys, Toronto, ON M5S 1A7, Canada

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

[7] Brookhaven Natl Lab, Phys Dept, Neutron Scattering Grp, Upton, NY 11973 USA

[8] Univ Illinois, Frederick Seitz Mat Res Lab, Urbana, IL 61801 USA

[9] Univ Tokyo, Grad Sch Frontier Sci, Kashiwa, Chiba 2778581, Japan

[10] EWHA Womans Univ, Dept Phys, Seoul 120750, South Korea

[11] Rutgers State Univ, Dept Phys & Astron, Piscataway, NJ 08854 USA

来源：

JOURNAL OF PHYSICS-CONDENSED MATTER | 2007年 / 19卷 / 14期

关键词：

D O I：

10.1088/0953-8984/19/14/145259

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

In this paper, we discuss neutron and synchrotron x-ray diffraction data obtained from single crystals of ACr(2)O(4) (A = Zn, Cd). The Cr spinels undergo three-dimensional spin-Peierls transitions at low temperatures that involve cubic-totetragonal lattice distortions and magnetic long-range ordering. Our results show that the magnetic structures selected by these systems are closely related to the lattice distortions that are undertaken.

引用

页数：4

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