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Интеллектуальная Система Тематического Исследования НАукометрических данных |
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Structural, Thermodynamic and Electrical Transport Properties of a Novel Cerium Gallide CeRh2Ga2тезисы доклада
- Авторы: Gnida D., Nesterenko S., Tursina A., Avzuragova V., Kaczorowski D.
- Сборник: Abstract book International Conference on Strongly Correlated Electron Systems (SCES 2016)
- Тезисы
- Год издания: 2016
- Место издания: Zhejiang University
- Первая страница: 234
- Последняя страница: 234
- Аннотация: The formation of a novel ternary compound CeRh2Ga2 was established in the course of our investigation of the phase equilibria in the Ce-Rh-Ga system. Its crystal structure at room temperature was determined from the single-crystal X-ray diffraction data to be of the CaBe2Ge2-type. The refined value of the tetragonal lattice parameters ratio c/a implies a possible instability towards a lower symmetry structure. Indeed, the structural phase transition occurs at Ts = 265 K, and manifests itself as distinct anomalies in the temperature variations of the heat capacity and the electrical resistivity. Below Ts, the compound exhibits unusual behavior of the electrical transport with a non-monotonous rise of the resistivity with decreasing temperature. At Tm = 1 K, both C(T) and (T) show maxima of magnetic origin. Above Tm, CeRh2Ga2 is a Curie-Weiss paramagnet with fairly stable 4f electronic shell. The thermodynamic and electrical transport data concomitantly indicate a heavy-fermion character of the compound studied.
- Добавил в систему: Нестеренко Сергей Николаевич