Bulk Phase Transition in YBa2Cu3O7- Single Crystals
Precise magnetization measurements of YBa2Cu3O7- single crystals have found evidence for a bulk phase transition a few degrees below the superconducting critical temperature. The phase transition is indicated by a sudden drop of the lower critical field, Hc1(T), separating a full coherent state at low fields and temperatures, the Meissner state, from a region at higher temperatures where magnetic excitations are induced at H=0.
MSU Digital Commons Citation
Safar, Hugo F.; Pastoriza, Hernan; De La Cruz, Francisco; Bishop, David J.; Schneemeyer, Lynn; and Waszczak, Joseph V., "Bulk Phase Transition in YBa2Cu3O7- Single Crystals" (1991). Department of Chemistry and Biochemistry Faculty Scholarship and Creative Works. 234.