New memory effects detected in field-modulated microwave absorption of magnetized YBa2Cu3O7-delta powders



: Laiho R, Lahderanta E, Paturi P, Vlasenko LS

Publisher: PERGAMON-ELSEVIER SCIENCE LTD

: 1997

: Solid State Communications

: SOLID STATE COMMUNICATIONS

: SOLID STATE COMMUN

: 103

: 10

: 559

: 562

: 4

: 0038-1098

DOI: https://doi.org/10.1016/S0038-1098(97)00247-0


We describe two new memory effects detected as additional changes in signals of field-modulated microwave absorption of YBa2Cu3O7-delta powders. They appear when the scanning direction of the field is reversed or when the sample is cooled. The observed effects can be attributed to vortex distribution in superconducting YBa2Cu3O7-delta particles. (C) 1997 Elsevier Science Ltd.



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