2004年5月
Specific heat of amorphous Mn100-xCex alloys
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
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- 巻
- 272
- 号
- 開始ページ
- 72
- 終了ページ
- 74
- 記述言語
- 英語
- 掲載種別
- DOI
- 10.1016/j.jmmm.2003.11.092
- 出版者・発行元
- ELSEVIER SCIENCE BV
We have measured the specific heat C-p on sputtered amorphous Mn100-xCex alloys for 25 less than or equal to x less than or equal to 79 from 4.2 to 300 K using a light-chopped AC method. The C-p/T follows gamma + AT(2) law below 15 K in each Ce concentration. The gamma value increases systematically as a function of x and reaches 0.124 J/mol K-2 for x = 79, suggesting formation of a dense-Kondo and/or heavy-fermion state at low temperature for the Ce-rich side. Large magnetic contribution in C, has been observed at higher temperature, suggesting existence of large itinerant spin fluctuations. (C) 2003 Elsevier B.V. All rights reserved.
- リンク情報
- ID情報
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- DOI : 10.1016/j.jmmm.2003.11.092
- ISSN : 0304-8853
- Web of Science ID : WOS:000222236500030