Evolution of the superconductivity during the pressure-induced oxygen ordering process in oxygen-deficient REBa{sub 2}Cu{sub 3}O{sub 6+x} (RE = Y,Nd,La)

Journal Article · Mon Nov 01 04:00:00 EST 1999 · Journal of Low Temperature Physics

DOI:https://doi.org/10.1023/A:1022554924959· OSTI ID:20012897

Fita, I M; Puzniak, R; Doroshenko, N A; Dyakonov, V P; Wisniewski, A; Szymczak, H

The pressure controlled oxygen reordering processes in REBa{sub 2}Cu{sub 3}O{sub 6+x}(RE = Y,Nd,La) causing the continuous charge transfer between the CuO{sub x} and CuO{sub 2} planes were investigated. The charge transfer results in the time evolution of superconductivity. A strong acceleration of ordering and disordering processes was found when the RE-ion size increases from Y to La. Pressure induced semiconductor-superconductor transition in LaBa{sub 2}Cu{sub 3}O{sub 6+x} resulted from the oxygen ordering is reported for the first time.

• Research Organization: Polish Academy of Sciences, Warsaw (PL)
• OSTI ID: 20012897
• Journal Information: Journal of Low Temperature Physics, Journal Name: Journal of Low Temperature Physics Journal Issue: 3-4 Vol. 117; ISSN JLTPAC; ISSN 0022-2291
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
BARIUM OXIDES
COPPER OXIDES
LANTHANUM OXIDES
NEODYMIUM OXIDES
ORDER PARAMETERS
ORDER-DISORDER TRANSFORMATIONS
PRESSURE DEPENDENCE
SUPERCONDUCTIVITY
YTTRIUM OXIDES