Microstructural control and tuning of thermal conductivity in La0.67Ca0.33MnO3+/-��

Autor:	Turcaud, J. A., Morrison, K., Berenov, A., Alford, N. McN., Sandeman, K. G., Cohen, L. F.
Rok vydání:	2012
Předmět:	Strongly Correlated Electrons (cond-mat.str-el) Materials Science (cond-mat.mtrl-sci) FOS: Physical sciences
DOI:	10.48550/arxiv.1210.0410
Popis:	Manganites are one of only a small number of material families currently being trialled as room temperature magnetic refrigerants. Here we examine the dependence of the thermal conductivity, K, of La0.67Ca0.33MnO3+/-�� as a function of density, grain size and silver impregnation around room temperature. We use a simple effective medium model to extract relevant trends in the data and demonstrate a threefold increase in thermal conductivity by silver impregnation. 4 pages, 4 figures
Databáze:	OpenAIRE
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