ISSN:
1573-7357
Keywords:
74.72.Dn
;
74.62.Dh
;
74.62.Fj
;
74.62.−c
Source:
Springer Online Journal Archives 1860-2000
Topics:
Physics
Notes:
Abstract In La2−xBaxCuO4 (LBCO) and La1.8−xNd0.2BaxCuO4 (LNBCO), the low-temperature structural change at T1 (=60–110K), resulting from tilt of the CuO6 octahedra, is easily suppressed at high pressures. However, the structural change of LNBCO (x=0.125) remains up to 2GPa though it jumps from T1(∼110K) to T* (∼60K), where the electric resistivity ϱ begins to upturn, at 0-1.5GPa. The upturn of ϱ is also suppressed at high pressures, and the superconducting critical temperature Tc is fully restored except in a very narrow x-range around x=0.125. The Tc for x ≈0.125 is appreciably lower at 2GPa than those for other Ba-contents.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00768404
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