TY - JOUR

T1 - Nonlinear transverse magnetic moment in anisotropic superconductors

AU - Žutić, Igor

AU - Valls, Oriol T

PY - 1996

Y1 - 1996

N2 - We consider the nonlinear transverse magnetic moment that arises in the Meissner state of superconductors with a strongly anisotropic order parameter. We compute this magnetic moment as a function of applied field and geometry, assuming (Formula presented)-wave pairing, for realistic samples, finite in all three dimensions, of high-temperature superconducting materials. Return currents, shape effects, and the anisotropy of the penetration depth tensor are all included. We numerically solve the nonlinear Maxwell-London equations for a finite system. Results are discussed in terms of the relevant parameters. The effect, which is a probe of the order parameter symmetry in the bulk, not just the surface, of the sample should be readily measurable if pairing is in a (Formula presented)-wave state. Failure to observe it would set a lower bound to the (Formula presented)-wave component.

AB - We consider the nonlinear transverse magnetic moment that arises in the Meissner state of superconductors with a strongly anisotropic order parameter. We compute this magnetic moment as a function of applied field and geometry, assuming (Formula presented)-wave pairing, for realistic samples, finite in all three dimensions, of high-temperature superconducting materials. Return currents, shape effects, and the anisotropy of the penetration depth tensor are all included. We numerically solve the nonlinear Maxwell-London equations for a finite system. Results are discussed in terms of the relevant parameters. The effect, which is a probe of the order parameter symmetry in the bulk, not just the surface, of the sample should be readily measurable if pairing is in a (Formula presented)-wave state. Failure to observe it would set a lower bound to the (Formula presented)-wave component.

UR - http://www.scopus.com/inward/record.url?scp=0000195223&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0000195223&partnerID=8YFLogxK

U2 - 10.1103/PhysRevB.54.15500

DO - 10.1103/PhysRevB.54.15500

M3 - Article

AN - SCOPUS:0000195223

VL - 54

SP - 15500

EP - 15512

JO - Physical Review B

JF - Physical Review B

SN - 2469-9950

IS - 21

ER -