Static and dynamical anisotropy effects in the mixed state of d-wave superconductors

D. Chang; C.-Y. Mou; B. Rosenstein; C. L. Wu

doi:10.1103/PhysRevB.57.7955

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Static and dynamical anisotropy effects in the mixed state of d-wave superconductors

D. Chang, C.-Y. Mou, B. Rosenstein, C. L. Wu

DOI 10.1103/PhysRevB.57.7955 · Physical Review B

T1

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Abstract

We describe the effects of anisotropy caused by the crystal lattice in d-wave superconductors using an effective free-energy approach in which only one order parameter, the d-wave order-parameter field, is used. The Abrikosov parameter βA is calculated analytically for both static and moving vortex lattices. The analytic expression provides an unambiguous determination of the vortex-lattice structure. We also calculate both direct and Hall I−V curves as functions of the angle between the current and the crystal-lattice orientation. In particular, we show that near Hc2 the fourfold symmetry of the crystal lattice causes asymmetric motions of particles and holes, resulting in a nonvanishing Hall current.

Source-reported materials — not catalogue approval

Formula	Reported Tc (K)	Pressure (GPa)	Type
YBa2Cu3O7 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	—	Pressure not reported	unknown