作者: V. Müller , Ch. Roth , D. Maurer , E. W. Scheidt , K. Lüders
DOI: 10.1103/PHYSREVLETT.58.1224
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摘要: The ultrasonic attenuation of the heavy-fermion superconductor ${\mathrm{UPt}}_{3}$ is investigated as a function temperature, magnetic field strength, and frequency. It shown that in presence dc at least one metastable two stable phases exist superconducting state.