Low temperature magnetic penetration depth in d-wave superconductors

Abstract We briefly review the experimental results of the low temperature magnetic penetration depth λ(T) of d-wave superconductors. In very clean high-Tc superconductors (HTSC) the low temperature in-plane penetration depth λ‖(T) varies linearly with T. A weaker power law temperature dependence is found for the out-of-plane penetration depth λ⊥(T) in most of HTSC. In the organic superconductors κ-(BEDT-TTF)2X [X=Cu(NCS)2, Cu[N(CN)2]Br] and slightly dirty HTSC λ‖∝bT2/(T*+T), where T ∗ ≈ Γ Δ 0 is deduced from an impurity scattering model. In clean CeCoIn5 a crossover from linear to quadratic temperature behavior at low T was interpreted as the first evidence for nonlocal effects in a d-wave superconductor.

[1]  S. Kamal,et al.  C-AXIS ELECTRODYNAMICS OF YBA2CU3O7-DELTA , 1998, cond-mat/9803272.

[2]  Morgan,et al.  a-b Plane Microwave Surface Impedance of a High-Quality Bi2Sr2CaCu2O8 Single Crystal. , 1996, Physical review letters.

[3]  Chia,et al.  Temperature dependence of the penetration depth in Sr2RuO4: evidence for nodes in the gap function , 2000, Physical review letters.

[4]  Morgan,et al.  Precision measurements of the temperature dependence of lambda in YBa2Cu3O6.95: Strong evidence for nodes in the gap function. , 1993, Physical review letters.

[5]  K. Andres,et al.  Anomalous temperature dependence of the magnetic field penetration depth in superconducting UBe13 , 1986 .

[6]  D. Seidman,et al.  Anisotropic dc Magnetization of Superconducting UPt3 and Antiferromagnetic Ordering Below 20 mK , 1999 .

[7]  Hirschfeld,et al.  Effect of strong scattering on the low-temperature penetration depth of a d-wave superconductor. , 1993, Physical review. B, Condensed matter.

[8]  J. M. Williams,et al.  Low-Temperature Penetration Depth of ?-(ET)2Cu[N(CN)2]Br and ?-(ET)2Cu(NCS)2 , 1999 .

[9]  Michael Tinkham,et al.  Introduction to Superconductivity , 1975 .

[10]  Klein,et al.  Comparison of the influence of Ni and Zn impurities on the electromagnetic properties of YBa2Cu3O6.95. , 1994, Physical review. B, Condensed matter.

[11]  Lang,et al.  Magnetic penetration depth of kappa -(BEDT-TTF)2Cu(NCS)2: Strong evidence for conventional Cooper pairing. , 1992, Physical review letters.

[12]  W. N. Hardy,et al.  Magnetic penetration depth and surface resistance in ultrahigh-purity YBa 2 Cu 3 O 7 − δ crystals , 1998 .

[13]  Hu,et al.  Midgap surface states as a novel signature for dxa2-xb2-wave superconductivity. , 1994, Physical review letters.

[14]  T. Xiang,et al.  Probing the Order Parameter and the c -Axis Coupling of High- T c Cuprates by Penetration Depth Measurements , 1997 .

[15]  Williams,et al.  Magnetic penetration depth and fluxon-line dynamics in the organic superconductor kappa - , 1994, Physical review. B, Condensed matter.

[16]  Yip,et al.  Nonlinear Meissner effect in unconventional superconductors. , 1995, Physical review. B, Condensed matter.

[17]  C. C. Tsuei,et al.  Pairing symmetry in cuprate superconductors , 2000 .

[18]  H. Huber,et al.  Low-temperature anomaly in the penetration depth of YBa2Cu3O7 films: Evidence for andreev bound states at surfaces , 1998 .

[19]  R. Edwards,et al.  MILLIMETER-WAVE MAGNETO-OPTICAL DETERMINATION OF THE ANISOTROPY OF THE SUPERCONDUCTING ORDER PARAMETER IN THE MOLECULAR SUPERCONDUCTOR KAPPA -(BEDT-TT F)2CU(NCS)2 , 1999 .

[20]  Gu,et al.  In-plane and c-circumflex-axis microwave penetration depth of Bi2Sr2Ca1Cu2O8+ delta crystals. , 1995, Physical review letters.