Field-induced spin phase transition in a Co complex

被引：31

作者：

Markevtsev, I. N. ^{[2
]}

Monakhov, M. P. ^{[2
]}

Platonov, V. V. ^{[2
]}

Mischenko, A. S. ^{[1
,3
]}

Zvezdin, A. K. ^{[1
,3
]}

Bubnov, M. P. ^{[4
]}

Abakumov, G. A. ^{[4
]}

Cherkasov, V. K. ^{[4
]}

机构：

[1] Moscow MV Lomonosov State Univ, Fac Phys, Moscow, Russia

[2] VNIIEF, Sarov 607188, Russia

[3] Gen Phys Inst RAS, Moscow, Russia

[4] Razuvaev Inst Organometall Chem RAS, Nijnii Novgorod, Russia

来源：

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 2006年 / 300卷 / 01期

关键词：

Molecular magnets; Co valence tautomers; Megagauss magnetic fields;

D O I：

10.1016/j.jmmm.2005.10.134

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A Co valence tautomeric compound has been studied in a wide range of magnetic fields and temperatures. Magnetic susceptibility of the Co complex has been measured in explosive magnetic fields. An anomalous behaviour of the susceptibility curve at the field of 100 T was attributed to a field-induced phase transition. A model describing the phase transition was developed. Among the results of the model is a B-T phase diagram of the transition, where B is magnetic field and T is temperature. The obtained experimental results were analyzed in the framework of the proposed model and several important parameters have been estimated: value of the entropy change at the transition and energy difference between the two phases. (C) 2005 Elsevier B.V. All rights reserved.

引用

页码：E407 / E410

页数：4

共 13 条

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[2]

[Anonymous], 1995, Handbook of Magnetic Materials, V9, P405

[3] Distorted MnIVMn3III cubane complexes as single-molecule magnets [J].