SPECIFIC-HEAT OF SUPERCONDUCTING HGBA2CA2CU3O8 BETWEEN 65-K AND 200-K

被引：19

作者：

JEANDUPEUX, O

SCHILLING, A

OTT, HR

机构：

[1] Laboratorium für Festkörperphysik, ETH-Hönggerberg

来源：

PHYSICA C | 1993年 / 216卷 / 1-2期

关键词：

14;

D O I：

10.1016/0921-4534(93)90628-4

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The specific heat C(p)(T) of a polycrystalline sample containing HgBa2Ca2Cu3O8 (Hg-1223) as the dominant phase has been measured between 65 and 200 K. The C(p)/T data show a distinct anomaly around T(c)=132.5 K. After subtraction of a fitted background, we deduce a value for DELTAC(p)/T(c) of 12-18 mJ/mole K2 for the investigated sample. From the shape of DELTAC(p)/T, we conclude that fluctuations near T(c) play an important role also in this type of compound. Our measurements unambiguously confirm that superconductivity below T(c)=132.5 K is a bulk phenomenon in Hg-1223.

引用

页码：17 / 20

页数：4

共 13 条

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