Effect of pressure on superconductivity in the quaternary compounds RENi2B2C (RE=Lu, Y, Tm, Er, Ho)

  • Schmidt H
  • Braun H
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Abstract

The effect of hydrostatic pressure up to 15 kbar on the superconducting transition temperature Tcis reported for five compounds in the quaternary system RENi2B2C (RE=Y, Lu, Tm, Er, Ho). The compounds with RE=Y, Lu, Tm, Er display a modest linear variation of Tcwith pressure. The value of dTc/dp is ranging from -1.78×10-5K/bar up to +1.88×10-5K/bar. In contrast, for HoNi2B2C some kind of interplay between long-range magnetic order and superconductivity occurs, which is strongly modified under applied pressure. © 1994.

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