Interaction of magnetic field-dependent Peierls and spin-Peierls ground states in (Per)2[Pt(mnt)2]

被引：7

作者：

Green, E. L. ^{[1
,2
]}

Brooks, J. S. ^{[1
,2
]}

Kuhns, P. L. ^{[1
,2
]}

Reyes, A. P. ^{[1
,2
]}

Lumata, L. L. ^{[3
]}

Almeida, M. ^{[4
]}

Matos, M. J. ^{[5
]}

Henriques, R. T. ^{[5
]}

Wright, J. A. ^{[6
]}

Brown, S. E. ^{[6
]}

机构：

[1] Florida State Univ, Dept Phys, Tallahassee, FL 32310 USA

[2] Florida State Univ, Natl High Magnet Field Lab, Tallahassee, FL 32310 USA

[3] Univ Texas SW Med Ctr Dallas, AIRC, Dallas, TX 75390 USA

[4] Inst Tecnol & Nucl CFMCUL, P-2686953 Sacavem, Portugal

[5] Polo Lisboa, Inst Telecomunicacoes, P-1049001 Lisbon, Portugal

[6] Univ Calif Los Angeles, Dept Phys & Astron, Los Angeles, CA 90095 USA

来源：

PHYSICAL REVIEW B | 2011年 / 84卷 / 12期

基金：

美国国家科学基金会;

关键词：

TRANSITION; CUGEO3; FAMILY; CHAINS;

D O I：

10.1103/PhysRevB.84.121101

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The interaction of parallel conducting perylene and insulating spin-1/2 [Pt(mnt)(2)] molecular chains in (Per) 2[Pt(mnt)(2)] is investigated through the magnetic field dependence of their coupled Peierls (charge density wave - CDW) and spin-Peierls (SP) ground states. Proton NMR is used to monitor the spin-chain behavior, and signatures in the NMR spectrum and spin-relaxation rate are compared with previous electrical transport measurements that describe the metal-insulator transition in the perylene chains associated with the CDW phase boundary. We find that the SP and CDW chains remain coupled to high fields, at variance with a simplemean-field description, and that symmetry breaking in the perylene CDW transition may drive the nearly simultaneous SP transition.

引用

页数：4

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