LOW TEMPERATURE DEPENDENCE OF THE PENETRATION DEPTH IN SUPERCONDUCTOR MgB2 IN THE PRESENCE AND ABSENCE OF IMPURITIES
2004 ◽
Vol 18
(03)
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pp. 369-377
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Keyword(s):
S Wave
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The large variety of the measured magnetic penetration depth is interpreted by using two microscopic gap models. We calculate the penetration depth of superconductor MgB 2 in low temperatures by using two gap and an anisotropic s-wave gap models. In the two gap model we consider that the total penetration depth is a weighted sum of the contribution from σ- and π-bands and the interaction between these two bands is ignored. The effect of impurities on the σ-band is less than that π-band and there are tremendous modifications of the temperature dependence of the penetration depth for π-band.
1991 ◽
Vol 169
(1-4)
◽
pp. 671-672
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Keyword(s):
1998 ◽
Vol 80
(21)
◽
pp. 4761-4762
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1993 ◽
Vol 3
(1)
◽
pp. 2140-2143
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Temperature dependence of the magnetic penetration depth in YBa2Cu3O7 measured by muon spin rotation
1988 ◽
Vol 153-155
◽
pp. 757-758
◽
1998 ◽
Vol 81
(18)
◽
pp. 4023-4023
◽
2000 ◽
Vol 289-290
◽
pp. 369-372
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