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Bond-dependent symmetric and antisymmetric superexchange interactions in La2CuO4

โœ Scribed by Shekhtman, L.; Aharony, Amnon; Entin-Wohlman, O.


Book ID
111860250
Publisher
The American Physical Society
Year
1993
Tongue
English
Weight
396 KB
Volume
47
Category
Article
ISSN
1098-0121

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Thermal history-dependent superconductiv
โœ E.T. Ahrens; A.P. Reyes; P.C. Hammel; J.D. Thompson; P.C. Canfield; Z. Fisk; J.E ๐Ÿ“‚ Article ๐Ÿ“… 1993 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 407 KB

DC magnetic susceptibility measurements reveal a dependence of the superconducting critical temperature (To) on the cooling rate (R) in super-oxygenated LaECuO4+~. Bulk T0s vary by ~ 4 K depending on whether the sample is "'quenched" or slow cooled through a narrow temperature range around 195 +\_ l