Features of the Elastic Properties of Htsc Ceramics in the Transition Zone to the Superconducting Phaseстатья
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Дата последнего поиска статьи во внешних источниках: 12 января 2022 г.
Аннотация:The article presents the results of studies of the elastic properties of the YBa2Cu3O(7 – x) high-temperaturesuperconducting ceramic in the vicinity of the phase transition to the superconducting state at a temperatureof 91.3 K and room temperature of 293 K. Near the phase transition temperature with a width of ~10K, a local increase in longitudinal nonlinear acoustic parameter N was revealed for the first time, which characterizesanharmonic interatomic interaction in the material. Experimental studies of the linear and nonlinearelastic properties of the YBa2Cu3O(7 – x) HTSC ceramic near the superconducting transition zone showthat the electronic phase transition significantly influences its elastic properties.