Simultaneous determination of specific heat,thermal conductivity and thermal diffusivity at low temperature via the photopyroelectric technique期刊界 All Journals 搜尽天下杂志传播学术成果专业期刊搜索期刊信息化学术搜索

Simultaneous determination of specific heat,thermal conductivity and thermal diffusivity at low temperature via the photopyroelectric technique

Authors:	Massimo Marinelli F. Murtas M. G. Mecozzi U. Zammit R. Pizzoferrato F. Scudieri S. Martellucci Marco Marinelli

Affiliation:	(1) Dipartimento di Ingegneria Meccanica, 2° Università di Roma Tor Vergata, Via E. Carnevale, I-00173 Rome, Italy;(2) Istituto di Elettronica dello Stato Solido del CNR, Via Cineto Romano 42, I-00156 Rome, Italy

Abstract:	The photopyroelectric effect has been used to measure simultaneously specific heat (c), thermal conductivity (k) and thermal diffusivity () at low temperatures. A calibration procedure which allows the use of a pyroelectric transducer at low temperatures is described. Simultaneous measurements of c, k, and over a high T_c superconducting phase transition are reported.

Keywords:	78.20 Hp 74.30 Ek
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