Please use this identifier to cite or link to this item: http://lib.jncasr.ac.in:8080/jspui/handle/10572/1146
Title: Superconductivity of La2−ySryCu1−xNixO4+δ (y = 0.1, 0.2; 0 ≤ x ≤ 0.5) The hole-compensating effect of Ni
Authors: Bhat, V
Rao, C N R
Honig, J M
Keywords: High-Tc Superconductivity
High-Pressure Oxygen
Sr-Cu-O
Substitution
System
State
Disappearance
Phases
Defect
Oxides
Issue Date: 1-Feb-1992
Publisher: Elsevier Science BV
Citation: Physica C 191(1-2), 271-276 (1992)
Abstract: Magnetization measurements below 50 K on ceramic La2−ySryCu1−xNixO4+δ (y = 0.1, 0.2; 0≤x≤0.5) show a progressive diminution of superconducting properties with increasing x. The larger suppressive action of Ni in the y=0.1 system than that for y=0.2 is attributed to the hole-compensating effect of Ni3+. The assumption that nickel is in the 3+ state satisfactorily explains: (1) the reduction in hole concentration, (2) a right-shift of the Tc versus y curve with x, and (3) the low magnetic moment carried by Ni atoms, in the La2−ySryCu1−xNixO4+δ system.
Description: Restricted Access
URI: http://hdl.handle.net/10572/1146
Other Identifiers: 0921-4534
Appears in Collections:Research Papers (Prof. C.N.R. Rao)

Files in This Item:
File Description SizeFormat 
1992.32.pdf
  Restricted Access
491.39 kBAdobe PDFView/Open Request a copy


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.