Field and oxygen dependence of the magnetic irreversibility line in yba(2)cu(3)o(7-g)
dc.contributor.author | Rodrigues Junior, Pedro | pt_BR |
dc.contributor.author | Schaf, Jacob | pt_BR |
dc.contributor.author | Pureur Neto, Paulo | pt_BR |
dc.date.accessioned | 2014-10-07T02:11:29Z | pt_BR |
dc.date.issued | 1994 | pt_BR |
dc.identifier.issn | 0163-1829 | pt_BR |
dc.identifier.uri | http://hdl.handle.net/10183/104231 | pt_BR |
dc.description.abstract | We report on de magnetic susceptibility measurements in polycrystalline YBa2Cu30 7- δ as a function of the oxygen content in the limit of small δ. We focus mainly on the detailed behavior of the zero-fie1dcooled- field-cooled irreversibility line at fields below 7 kOe. We find that this line shows a crossover from a H 2 dependence at higher fields to the more commonly observed H 2/3 behavior at lower fields. This feature is analogous to the anisotropy induced crossover from the high-field Gabay-Toulouse line to the low-field de Almeida-Thouless behavior, characteristic of the spin-glass transition. Our results are discussed in the light of a dirty-limit vortex-glass model where the grain charging energy plays a major role. Data conceming the behavior of the resistive transition as a function of the distribution of the oxygen vacancies are also presented. | en |
dc.format.mimetype | application/pdf | |
dc.language.iso | eng | pt_BR |
dc.relation.ispartof | Physical review. B, Condensed matter. New York. Vol. 49, no. 21 (June 1994), p. 15292-15298 | pt_BR |
dc.rights | Open Access | en |
dc.subject | Física da matéria condensada | pt_BR |
dc.subject | Suscetibilidade magnética | pt_BR |
dc.subject | Medidas fisicas | pt_BR |
dc.subject | Supercondutividade | pt_BR |
dc.subject | Altas temperaturas | pt_BR |
dc.subject | Condutividade elétrica | pt_BR |
dc.subject | Vidros de spin | pt_BR |
dc.title | Field and oxygen dependence of the magnetic irreversibility line in yba(2)cu(3)o(7-g) | pt_BR |
dc.type | Artigo de periódico | pt_BR |
dc.identifier.nrb | 000254336 | pt_BR |
dc.type.origin | Estrangeiro | pt_BR |
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