| 高分辨差分比热测量方法及在高温超导体研究中的应用 |
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| 引用本文： | 雒建林,郑萍.高分辨差分比热测量方法及在高温超导体研究中的应用[J].物理,2011,40(2):116-120. |
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| 作者姓名： | 雒建林 郑萍 |
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| 作者单位： | 中国科学院物理研究所,北京,100190 |
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| 基金项目： | 国家自然科学基金，国家重点基础研究发展计划 |
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| 摘 要： | 差分比热实验方法是测量两个样品的比热差,具有高达万分之一的比热测量分辨率,适合测量相变时微小的比热变化及宽温区的电子比热.文章介绍了高分辨连续升温差分比热实验的测量原理和测量方法,并以铜氧化物高温超导体Y0.8Ca0.2Ba2Cu3O6+x为例,介绍了差分比热实验手段在宽温区电子比热的获得、正常态赝能隙及超导凝聚能研究等方面的应用.
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| 关 键 词： | 高分辨差分比热测量 电子比热 高温超导体 |
High-resolution differential specific heat measurement and its application to high Tc cuprates |
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| LUO Jian-Lin,ZHENG Ping.High-resolution differential specific heat measurement and its application to high Tc cuprates[J].Physics,2011,40(2):116-120. |
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| Authors: | LUO Jian-Lin ZHENG Ping |
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| Institution: | LUO Jian-Lin ZHENG Ping(Institute of Physics,Chinese Academy of Sciences,Beijing 100190,China) |
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| Abstract: | Differential specific heat measurement detects the difference in specific heat between two samples. The system has an extremely high resolution greater than 10-4,and is suitable for measuring a tiny change in specific heat when a material experiences a phase transition,or for measuring electronic specific heat over a wide temperature range. In this paper,we describe the principle and method of high-resolution continuous heating differential specific heat measurement. In addition,we introduce its application... |
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| Keywords: | high resolution differential specific heat measurement electronic specific heat high Tc cuprates |
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