کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
8153845 1524770 2018 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Thermodynamic behavior and enhanced magnetocaloric effect in a frustrated spin-12 Ising-Heisenberg triangular tube
موضوعات مرتبط
مهندسی و علوم پایه فیزیک و نجوم فیزیک ماده چگال
پیش نمایش صفحه اول مقاله
Thermodynamic behavior and enhanced magnetocaloric effect in a frustrated spin-12 Ising-Heisenberg triangular tube
چکیده انگلیسی
The thermodynamic behavior of an Ising-Heisenberg triangular tube with Heisenberg intra-rung and Ising inter-rung interactions is exactly obtained in an external magnetic field within the framework of the transfer-matrix method. We report rigorous results for the temperature dependence of the magnetization, entropy, pair correlations and specific heat, as well as typical iso-entropic curves. The discontinuous field-driven ground-state phase transitions are reflected in some anomalous thermodynamic behavior as for instance a striking low-temperature peak of the specific heat and an enhanced magnetocaloric effect. It is demonstrated that the intermediate magnetization plateaus shrink in and the relevant sharp edges associated with the magnetization jump round off upon increasing temperature.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Magnetism and Magnetic Materials - Volume 451, 1 April 2018, Pages 218-225
نویسندگان
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