التفاصيل البيبلوغرافية
| العنوان: |
Thermodynamic Behavior of Ce Compounds Close to a T \to 0 Critical Point. |
| المؤلفون: |
Sereni, J. G.1, Schmerber, G.2, Kappler, J. P.3 |
| المصدر: |
IEEE Transactions on Magnetics. Aug2013 Part 1, Vol. 49 Issue 8, p4647-4651. 5p. |
| مصطلحات موضوعية: |
*ENERGY consumption, *PERFORMANCE evaluation, CERIUM compounds, MAGNETIC properties of metals, ENTROPY, CRITICAL point (Thermodynamics), TEMPERATURE measurements |
| مستخلص: |
There is a reduced group of Ce very heavy Fermions (VHF) which do not order magnetically down to at least T \approx 500 mK because they are very close to a Tord = 0 critical point. These compounds are at the top of the \limT\to 0 Cm/T specific heat values because they collect very high density of low energy excitations. From the analysis of Cm(T)/T and entropy Sm(T) dependencies performed on selected CePd_3M_x ternaries (where M = B and Be) a quantitative evaluation of an upper limit for the density of excitations can be proposed. These observations exclude any evidence of Cm(T)/T divergency as T\to 0 in agreement with thermodynamic laws. A comparison with selected Yb-base VHF supports these features. [ABSTRACT FROM PUBLISHER] |
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| قاعدة البيانات: |
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