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Quasiparticle magnetospectroscopy and penetration-depth anisotropy in superconducting aluminum

R. E. Doezema, S. C. Whitmore, J. N. Huffaker

DOI 10.1103/PhysRevB.34.4614 · Physical Review B

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Abstract

Magnetoabsorption resonances in superconducting Al are studied as a function of magnetic field orientation and temperature in the (100) and (110) crystal planes. Using a recent theoretical calculation describing the quasiparticle energy levels, we extract from the experimental data the variation of penetration depth λ with crystal plane and field orientation. The overall anisotropy in λ at T=0 is found to be about 10%, with values in the range 460–510 Å. Our λ variation is compared with that predicted by simple tensor analysis.

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FormulaReported Tc (K)Pressure (GPa)Type
Al

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—Pressure not reportedunknown

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