Superconductivity of Compacted Platinum Powder at Very Low Temperatures

R. König, A. Schindler, and T. Herrmannsdörfer
Phys. Rev. Lett. 82, 4528 – Published 31 May 1999
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We report the observation of superconductivity in compacted, high purity platinum powder of average grain size 2μm. The transition into the superconducting state was found by measuring resistivity and ac susceptibility as well as dc magnetization. The transition temperature TC strongly depends on the compression of the powder; we found 0.62TC1.38mK for packing fractions of 0.8f0.5, respectively. The corresponding critical magnetic fields are 6.6BC(0)67μT.

  • Received 10 February 1999


©1999 American Physical Society

Authors & Affiliations

R. König, A. Schindler, and T. Herrmannsdörfer

  • Physikalisches Institut, Universität Bayreuth, D-95440 Bayreuth, Germany

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Vol. 82, Iss. 22 — 31 May 1999

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