Laser-modulated ac measurement of high temperature thermopower

• 来源期刊: 中国物理（英文版）
• 关键词: high temperature thermopower experimental set-up ac-measurement
• 年，卷（期）: 2005,（8）
• 页码范围: 1533-1535
• 页数: 3页
• 语种: 英文

摘要

An experimental set-up for ac-measurement of thermopower between room temperature and 1200K by using modulated laser-heating has been developed. The method shows many advantages compared with the conventional dc-measurements: convenience, applicability to small samples, possibility to measure the anisotropy of single crystals,and capability to continuously trace the temperature dependence of thermopower. The thermopower of a very short piece of pure Pt was measured with the present set-up to test the reliability and accuracy of our new method.