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Titolo:
STUDY OF SPIN-PEIERLS CUGEO3 BY HIGH-FIELD ESR
Autore:
NOJIRI H; OHTA H; MIURA N; MOTOKAWA M;
Indirizzi:
TOHOKU UNIV,INST MAT RES SENDAI MIYAGI 98077 JAPAN KOBE UNIV,DEPT PHYS KOBE 657 JAPAN UNIV TOKYO,INST SOLID STATE PHYS TOKYO 106 JAPAN
Titolo Testata:
Physica. B, Condensed matter
, volume: 246, anno: 1998,
pagine: 16 - 21
SICI:
0921-4526(1998)246:<16:SOSCBH>2.0.ZU;2-4
Fonte:
ISI
Lingua:
ENG
Soggetto:
COMPOUND CUGEO3; RESONANCE; SCATTERING; PHASE; MAGNETIZATION; TRANSITION;
Keywords:
SPIN-PEIERLS; CUGEO3; ELECTRON SPIN RESONANCE; MAGNETIC EXCITATION;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
21
Recensione:
Indirizzi per estratti:
Citazione:
H. Nojiri et al., "STUDY OF SPIN-PEIERLS CUGEO3 BY HIGH-FIELD ESR", Physica. B, Condensed matter, 246, 1998, pp. 16-21

Abstract

An inorganic spin-Peierls compound CuGeO3 has been studied by high-field ESR combining pulsed magnetic fields and far-infrared lasers. In EPR measurements under megagauss fields, an exchange splitting is observed and the interchain exchange coupling is evaluated. In the dimerized spin-Peierls phase, a direct transition between the singlet ground and the triplet excited states is observed. This result supports the existence of the second gap between the triplet state and the continuum. Collective spin wave modes in the field-induced magnetic phase and inthe antiferromagnetic phase of the impurity-doped system have been also studied. (C) 1998 Elsevier Science B.V. All rights reserved.

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Documento generato il 11/07/20 alle ore 20:42:15