Thermodynamic study of the melting transition in the vortex phase diagram of high purity YBa2Cu3O7-δ single crystals

被引：7

作者：

Deligiannis, K

Charalambous, M

Chaussy, J

Liang, R

Bonn, D

Hardy, WN

机构：

[1] CNRS, Ctr Rech Tres Basses Temp, F-38000 Grenoble, France

[2] Univ British Columbia, Dept Phys, Vancouver, BC V6T 1Z1, Canada

来源：

PHYSICA C | 2000年 / 341卷

关键词：

D O I：

10.1016/S0921-4534(00)00924-2

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We present a thermodynamic study of high purity YBa2Cu3O7-delta single crystals, using a state of the art AC calorimetric set-up. Our sample exhibits a sharp vortex melting transition for a wide range of fields. This first order transition is confined in the H-T vortex phasediagram between two critical points. Close to these critical points we observe a new specific heat anomaly.

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页码：1329 / 1330

页数：2

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