Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/101654
Type: Artigo de periódico
Title: Conduction Electron Spin Resonance Evidence For Internal Field In Graphite
Author: Sercheli M.S.
Kopelevich Y.
Ricardo Da Silva R.
Torres J.H.S.
Rettori C.
Abstract: We report conduction electron spin resonance measurements performed on highly oriented pyrolitic graphite samples between 10 and 300K using S (ν = 4GHz), X (ν = 9.4GHz), and Q (ν = 34.4GHz) microwave bands for the external DC-magnetic field applied parallel (H ∥ c) and perpendicular (H ⊥c ) to the sample hexagonal c-axis. The results obtained in the H ∥ c geometry are interpreted in terms of the presence of an effective internal ferromagnetic-like field, H int eff(T, H), that increases as the temperature decreases and the applied DC-magnetic field increases. We associate the occurrence of the H int eff(T, H) with the field-induced metal-insulator transition in graphite and discuss its origin in the light of relevant theoretical models. © 2002 Elsevier Science B.V. All rights reserved.
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Rights: fechado
Identifier DOI: 10.1016/S0921-4526(02)00762-7
Address: http://www.scopus.com/inward/record.url?eid=2-s2.0-0036646658&partnerID=40&md5=0b0812400fd7951295f2dc7b9653f08e
Date Issue: 2002
Appears in Collections:Unicamp - Artigos e Outros Documentos

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