TY - JOUR
T1 - Nonlocal effects on the magnetic penetration depth in d-wave superconductors
AU - Kosztin, Ioan
AU - Leggett, Anthony J.
PY - 1997
Y1 - 1997
N2 - 8We show that, under certain conditions, the low temperature behavior of the magnetic penetration depth λ(T) of a pure d-wave superconductor is determined by nonlocal electrodynamics and, contrary to the general belief, the deviation Δλ(T) = λ(T) - λ(0) is proportional to T2 and not T. We predict that the Δλ(T) ∝ T2 dependence, due to nonlocality, should be observable experimentally in nominally clean high-Tc superconductors below a crossover temperature T* = (ξ0/λ0)Δ0 ∼ 1 K. Possible complications due to impurities, surface quality, and crystal axes orientation are discussed.
AB - 8We show that, under certain conditions, the low temperature behavior of the magnetic penetration depth λ(T) of a pure d-wave superconductor is determined by nonlocal electrodynamics and, contrary to the general belief, the deviation Δλ(T) = λ(T) - λ(0) is proportional to T2 and not T. We predict that the Δλ(T) ∝ T2 dependence, due to nonlocality, should be observable experimentally in nominally clean high-Tc superconductors below a crossover temperature T* = (ξ0/λ0)Δ0 ∼ 1 K. Possible complications due to impurities, surface quality, and crystal axes orientation are discussed.
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U2 - 10.1103/PhysRevLett.79.135
DO - 10.1103/PhysRevLett.79.135
M3 - Article
AN - SCOPUS:0031558165
SN - 0031-9007
VL - 79
SP - 135
EP - 138
JO - Physical review letters
JF - Physical review letters
IS - 1
ER -