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T c enhancement in La2−x Sr x CuO4 under anisotropic pressure (1999)

Nakamura, F. ; Hori, J. ; Goko, T. ; [et al.]

Springer

Journal of low temperature physics 117 (1999), S. 1145-1149

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ISSN: 1573-7357

Source: Springer Online Journal Archives 1860-2000

Topics: Physics

Notes: Abstract We have measured ρ c (T) for La 2−x Sr x CuO 4 (LSCO) with x=0.15 under anisotropic pressures. The c-axis compression, which decreases ρ c (T), reduces T c drastically, whereas the c-axis stretch, which increases ρ c (T), enhances T c from 38K at the ambient pressure to 51.6K at 8GPa. The T c = 51.6K is the highest record so far reported for LSCO. The variation of T c is well scaled with variations of ρ c . We deduce that the enhancement of T c in LSCO is mainly caused by the suppression of interlayer coupling, though two dimensionality is generally known as a destructive factor for conventional superconductivity.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1023/A:1022503213459

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