Heat capacity of URu2−xOsxSi2 at low temperatures
نویسندگان
چکیده
We perform measurements of the heat capacity as a function temperature in URu$_{2-x}$Os$_x$Si$_2$ alloys. Our experimental results show that critical second-order phase transition increases while value Sommerfeld coefficient ordered state decreases with an increase osmium concentration. also observe values at well broadening fluctuations region $x$. analyze data using Haule-Kotliar model which, particular, identifies 'hidden order' parent material URu$_2$Si$_2$ to nonzero hexadecapole moment. demonstrate our are consistent predictions model.
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ژورنال
عنوان ژورنال: Physical review
سال: 2022
ISSN: ['0556-2813', '1538-4497', '1089-490X']
DOI: https://doi.org/10.1103/physrevb.105.l041106