The effect of all-round compression on the critical temperature of Y0.66Pr0.34Ba2Cu3O7-δ single crystals

被引：0

作者：

Khadzhai, G. Ya. ^{[1
]}

Komisarov, A. O. ^{[1
]}

Vragov, O. Yu. ^{[1
]}

Kovrygin, V. O. ^{[1
]}

Vovk, R. V. ^{[1
]}

机构：

[1] Kharkov Natl Univ, UA-61022 Kharkiv, Ukraine

来源：

LOW TEMPERATURE PHYSICS | 2024年 / 50卷 / 11期

关键词：

all-round compression; Y1-xPrxBa2Cu3O7-delta single crystals; praseodymium anomaly; phase segregation; electron-phonon interaction; HIGH-PRESSURE; ELECTRICAL-RESISTIVITY; TRANSITION-TEMPERATURE; YBA2CU3O7-DELTA; SUPERCONDUCTIVITY; PECULIARITIES; DEPENDENCE; PSEUDOGAP; PR;

D O I：

10.1063/10.0030422

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

In the present work, the effect of all-round compression up to 10 kbar on the in-plane electrical resistivity of well-structured Y0.66Pr0.34Ba2Cu3O7-delta (delta < 0.15, & Tcy;(& scy;) approximate to 51.8 K, Delta & Tcy;(& scy;) approximate to 2 K) single crystals has been investigated. In contrast to the samples with low praseodymium doping (x approximate to 0.05), the application of all-round compression to the samples with medium praseodymium doping (& khcy; approximate to 0.34) leads to an increase in the baric derivative d & Tcy;(& scy;)/dP by more than two times. It was found that, in contrast to polycrystalline samples, there was no change in the sign of the baric derivatives d & Tcy;(& scy;)/dP. The applicability of the well-known McMillan formula to explain the effect of all-round compression on & Tcy;(& scy;) is discussed.

引用

页码：1034 / 1036

页数：3

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