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Electrical resistance relaxation induced by high pressure in single crystals of YBa2Cu3O7−δ
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10.1063/1.4811255
/content/aip/journal/ltp/39/6/10.1063/1.4811255
http://aip.metastore.ingenta.com/content/aip/journal/ltp/39/6/10.1063/1.4811255

Figures

Image of FIG. 1.
FIG. 1.

The temperature dependence of resistance of YBaCuO with δ ≈ 0.5 in the plane of layers at different steps of the process of applying-removing pressure: the experiment (dots), approximations by Eqs. (1) and (2) (lines); the initial state (, ), directly after applying the pressure  = 7.8 kbar, (, ), after holding the sample at room temperature and  = 7.8 kbar during a week (, ), directly after depressurization (, ), after holding the sample at atmospheric pressure during three days (, ▪). Insets: ρ/ in the superconducting transition region (a), ρ/ for the initial state, the line is the calculation according to Eqs. (1) , (2) (b).

Image of FIG. 2.
FIG. 2.

The oxygen concentration for of various phases during applying-removing high pressure.

Tables

Generic image for table
Table I.

Parameters of fitting the electric resistance to Eqs. (1) , (2) , and the superconducting transition characteristics for different states of the sample.

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/content/aip/journal/ltp/39/6/10.1063/1.4811255
2013-06-27
2014-04-20
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Electrical resistance relaxation induced by high pressure in single crystals of YBa2Cu3O7−δ
http://aip.metastore.ingenta.com/content/aip/journal/ltp/39/6/10.1063/1.4811255
10.1063/1.4811255
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