NMR EVIDENCE FOR THE O-T STRUCTURAL TRANSITION IN YBA2(CU1-XMX)3O7-DELTA (M=CO, AL AND GA)
UNSPECIFIED (1993) NMR EVIDENCE FOR THE O-T STRUCTURAL TRANSITION IN YBA2(CU1-XMX)3O7-DELTA (M=CO, AL AND GA). PHYSICA C, 216 (3-4). pp. 491-494. ISSN 0921-4534Full text not available from this repository.
Studies of Fe, Co, Al and Ga substitution for Cu in YBa2Cu3O7-delta have reported contradictory conclusions about whether micro-twinning or a true orthorhombic-to-tetragonal transition occurs at approximately 2.5% substitution. Y-89 NMR has been used to study the structural change with doping of Co, Al or Ga for Cu in YBa2Cu3O7-delta. NMR is a microscopic probe and the chemical shift is sensitive to the local atomic arrangements within the first few neighbour shells. For these substitutions, the changes in Y-89 chemical shift provide evidence which suggests that there is an orthorhombic-to-tetragonal transition.
|Item Type:||Journal Article|
|Subjects:||Q Science > QC Physics|
|Journal or Publication Title:||PHYSICA C|
|Publisher:||ELSEVIER SCIENCE BV|
|Date:||1 November 1993|
|Number of Pages:||4|
|Page Range:||pp. 491-494|
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