Hysteretic effects in calorimetric measurements of the vortex melting transition in high-purity YBa2Cu3O7-δ single crystals

被引：2
|
作者：
Deligiannis, K
Billon, B
Chaussy, J
Charalambous, M
Liang, R
Bonn, D
Hardy, WN
机构：
[1] Ctr Rech Tres Basses Temp, CNRS, F-38000 Grenoble, France
[2] Univ British Columbia, Dept Phys, Vancouver, BC V6T 1Z1, Canada
来源：
PHYSICA C | 2000年 / 332卷 / 1-4期
关键词：
hysteretic effects; vortex melting transition; specific heat;
D O I：
10.1016/S0921-4534(99)00702-9
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
We present specific heat measurements in high-purity, detwinned YBa2Cu3O7-delta single crystals, with a state-of-the-art, high-resolution, AC calorimetric setup. Using a unique feature of the AC calorimetry, we demonstrate the existence of hysteretic effects at the vortex melting transition in specific heat measurements, a much-needed element fur establishing the first-order character of melting. (C) 2000 Elsevier Science B.V. All rights reserved.
引用
收藏
页码：360 / 364
页数：5
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