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Paramagnetic Meissner effect in YBa.sub.2./sub.Cu.sub.3./sub.O.sub.7./sub.: influence of AC magnetic field and magnetic relaxation
- 1.0104263 - FZU-D 20040605 RIV NL eng J - Journal Article
Tsoy, G. M. - Janů, Zdeněk - Novák, Miloslav
Paramagnetic Meissner effect in YBa2Cu3O7: influence of AC magnetic field and magnetic relaxation.
[Paramagnetický Meissnerův jev v YBa2Cu3O7: vliv střídavého pole a magnetické relaxace.]
Physica B-Condensed Matter. 284-288, - (2000), s. 811-812. ISSN 0921-4526. E-ISSN 1873-2135
R&D Projects: GA AV ČR IAA1010832
Institutional research plan: CEZ:AV0Z1010914
Keywords : magnetic relaxation * magnetization * paramagnetic Meissner effect
Subject RIV: BM - Solid Matter Physics ; Magnetism
Impact factor: 0.893, year: 2000
We have investigated the superconducting transition region in YBa2Cu3O7 single crystal showing the paramagnetic Meissner effect (PME). In the temperature region where the PME appears the sample reveals logarithmic relaxation of magnetization. The decay rate appreciably depends on the direction of the magnetic field fields. This phenomenon indicates that the PME may by caused by thermal fluctuations
Zkoumali jsme oblast supravodivého přechodu v monokrystalu YBa2Cu3O7, ve kterém dochází k paramagnetickému Meisnerovu (PMJ). V oblasti teplot, kde PMJ vzniká, magnetizace logaritmicky relaxuje. Rychlost relaxace závisí na směru magnetického pole. To ukazuje, že PMJ může souviset s tepelnými fluktuacemi
Permanent Link: http://hdl.handle.net/11104/0011537
Number of the records: 1