التفاصيل البيبلوغرافية
| العنوان: |
The spin entropy suppression induced by Fe3+ in NaCo2O4. |
| المؤلفون: |
Tang, G. D., Xu, X. N., Tang, C. P., Qiu, L., Lv, L. Y., Wang, Z. H., Du, Y. W. |
| المصدر: |
Journal of Applied Physics; May2010, Vol. 107 Issue 9, p093707-1-093707-4, 4p |
| مصطلحات موضوعية: |
SECOND law of thermodynamics, ENTROPY, SYSTEMS theory, STATISTICAL physics, IRREVERSIBLE processes (Thermodynamics) |
| مستخلص: |
Through the measurements of magnetothermopower on NaCo2-xFexO4, we find that the spin entropy is suppressed by doping with high-spin Fe3+ (S=5/2) which is revealed by Mössbauer spectra. The Mössbauer spectra and magnetic properties indicate that the Co4+ concentration is enhanced by Fe doping. A suitable theoretical model is adopted to explain commendably the spin entropy suppression. [ABSTRACT FROM AUTHOR] |
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| قاعدة البيانات: |
Complementary Index |