Skip to main content
U.S. Department of Energy
Office of Scientific and Technical Information

Pressure dependence of the superconducting transition temperature in single crystals of Tl[sub 2]Ba[sub 2]Ca[sub 2]Cu[sub 3]O[sub 10[minus][ital x]]

Journal Article · · Physical Review, B: Condensed Matter; (United States)
; ; ; ; ;  [1];  [2]
  1. Naval Research Laboratory, Washington, D.C. 20375 (United States)
  2. Office of Naval Research, Arlington, Virginia 22217 (United States)
The pressure dependence of the superconducting transition temperature, [ital T][sub [ital c]]([ital P]), has been measured in single crystals of Tl[sub 2]Ba[sub 2]Ca[sub 2]Cu[sub 3]O[sub 10[minus][ital x]]. In two overdoped samples, [ital T][sub [ital c]]([ital P]) is observed to increase from 116 K at atmospheric pressure to 131.8[plus minus]0.5 K at 7 GPa. We believe this is the highest [ital T][sub [ital c]] reported to date. The initial slope, [ital dT][sub [ital c]]/[ital dP], was measured to be 4.8[plus minus]0.3 K/GPa. For samples with [ital T][sub [ital c]]'s at atmospheric pressure approaching the reported optimum value for this compound of 125 K, the effect of pressure is reduced. These results are discussed in terms of existing theoretical models.
OSTI ID:
5430080
Journal Information:
Physical Review, B: Condensed Matter; (United States), Journal Name: Physical Review, B: Condensed Matter; (United States) Vol. 47:9; ISSN PRBMDO; ISSN 0163-1829
Country of Publication:
United States
Language:
English