Elastic properties of flux lattices in anisotropic high-Tc superconductors

V. G. Kogan; L. J. Campbell

doi:10.1103/PhysRevLett.62.1552

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Elastic properties of flux lattices in anisotropic high-Tc superconductors

V. G. Kogan, L. J. Campbell

DOI 10.1103/PhysRevLett.62.1552 · Physical Review Letters

T1

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Abstract

The elastic moduli of the two-dimensional flux-line lattice in a uniaxial superconductor are evaluated for an arbitrary orientation of vortices (i.e., of the magnetic induction) within the crystal in intermediate fields. For the flux lines in the basal a-b plane the ratio of the simple shear moduli, corresponding to displacements normal and parallel to the basal plane, is shown to equal (m3/m1)2 where m3 and m1 are the masses along the c axis and the basal plane, respectively. For YBa2Cu3O7 this amounts to a factor exceeding 600. The uniaxial crystal symmetry defines a preferred orientation to the flux lattice and doubles the number of independent elastic constants.

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