High-field EPR in gd-doped Bi2Sr2CaCu2O8+y and GdBa2Cu3O7-d

F. Scheerlinck

doi:10.1117/12.2301418

1 December 1990 High-field EPR in Gd-doped Bi₂Sr₂CaCu₂O_8+y and GdBa₂Cu₃O_7-d

F. Scheerlinck

Proceedings Volume 1514, 15th International Conference on Infrared and Millimeter Waves; 151408 (1990) https://doi.org/10.1117/12.2301418
Event: 15th International Conference on Infrared and Millimeter Waves, 1990, Orlando, FL, United States

Abstract

EPR measurements at microwave and far-infrared frequencies on Gd-spins in powders of Bi₂Sr₂Ca_1-xGd_xCu₂O_8+y and GdBa₂Cu₃O_7-d reveal a marked increase in linewidth at low temperatures. This cannot be fully accounted for in terms of crystal field split ting, dipolar broadening and inhomogeneous demagnetization. It is argued that a large contribution can come from interactions of the Gd-spins with antiferromagnetic excitations in the CuO-planes.

Citation Download Citation

F. Scheerlinck "High-field EPR in Gd-doped Bi₂Sr₂CaCu₂O_8+y and GdBa₂Cu₃O_7-d", Proc. SPIE 1514, 15th International Conference on Infrared and Millimeter Waves, 151408 (1 December 1990); https://doi.org/10.1117/12.2301418

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