Revival of the spin-Peierls transition in Cu1-xZnxGeO3 under pressure

被引：8

作者：

Fischer, M

van Loosdrecht, PHM

Lemmens, P

Guntherodt, G

Buchner, B

Lorenz, T

Breuer, M

Zeman, J

Martinez, G

Dhalenne, G

Revcolevschi, A

机构：

[1] Rhein Westfal TH Aachen, Inst Phys 2, D-52056 Aachen, Germany

[2] Univ Koln, Inst Phys 2, D-50937 Koln, Germany

[3] CNRS, MPI, Grenoble High Magnet Field Lab, F-38042 Grenoble 9, France

[4] Univ Paris Sud, Lab Chim Solides, F-91405 Orsay, France

来源：

PHYSICAL REVIEW B | 1998年 / 57卷 / 13期

关键词：

D O I：

10.1103/PhysRevB.57.7749

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Pressure- and temperature-dependent susceptibility and Raman scattering experiments on single-crystalline Cu0.986Zn0.014GeO3 have shown an unusually strong increase of the spin-Peierls phase transition temperature upon applying hydrostatic pressure. The large positive pressure coefficient (7.5 K/GPa)-almost twice as large as for the pure compound (4.5 K/GPa)-is interpreted as arising due to an increasing magnetic frustration which decreases the spin-spin correlation length, and thereby weakens the influence of the nonmagnetic Zn substitution.

引用

页码：7749 / 7754

页数：6

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