Cu63 NMR Shift and Linewidth Anomalies in the Tc=60 K Phase of Y-Ba-Cu-O

Authors

R. E. Walstedt, University of Michigan, Ann ArborFollow
William W. Warren, Oregon State UniversityFollow
R. F. Bell, LucentFollow
Robert J. Cava, Princeton UniversityFollow
Gerald P. Espinosa, LucentFollow
Lynn Schneemeyer, Montclair State UniversityFollow
J. V. Waszczak, University of WashingtonFollow

Document Type

Article

Publication Date

1-1-1990

Abstract

Cu63 NMR shifts and spectra are presented for both Cu(1) and Cu(2) sites in a specimen of YBazCu3O6.64 (Tc60 K). For H along the c axis, the Cu(2) shift is not distinguishable from that reported for YBa2Cu3O7.0. For H in the a-b plane, the spin component of Cu(2) shift declines sharply as TTc. The Cu(1) shift behaves similarly, showing also a dramatic broadening at low temperatures in clearly nonmetallic behavior. Combined with anomalous T1 data reported earlier for the 60-K phase of YBa2Cu3O6+x, these results are shown to be consistent with strong and monotonically increasing antiferromagnetic correlations as T is decreased.

DOI

10.1103/PhysRevB.41.9574

Montclair State University Digital Commons Citation

Walstedt, R. E.; Warren, William W.; Bell, R. F.; Cava, Robert J.; Espinosa, Gerald P.; Schneemeyer, Lynn; and Waszczak, J. V., "Cu63 NMR Shift and Linewidth Anomalies in the Tc=60 K Phase of Y-Ba-Cu-O" (1990). Department of Chemistry and Biochemistry Faculty Scholarship and Creative Works. 95.
https://digitalcommons.montclair.edu/chem-biochem-facpubs/95