标题： 等温熵变和绝热温度变化的反铁磁自旋-1/2伊辛八面体和十二面体 显示英文标题

标题： Isothermal Entropy Change and Adiabatic Change of Temperature of the Antiferromagnetic Spin-1/2 Ising Octahedron and Dodecahedron

摘要： 自旋-1/2伊辛八面体和十二面体具有独特的反铁磁相互作用，在零磁场下表现出显著的磁化跃迁，这导致在绝热去磁过程中产生巨大的磁卡效应。 在本工作中，我们报告了两种基本磁卡响应函数的温度依赖性：等温熵变和绝热温度变化。 结果表明， 伊辛八面体和十二面体在增加磁场时通常表现出较大的负等温熵变，这证明了它们的冷却性能。 显示英文摘要

摘要： The spin-1/2 Ising octahedron and dodecahedron with a unique antiferromagnetic interaction display an outstanding magnetization jump at zero magnetic field, which consequently leads to a giant magnetocaloric effect during the adiabatic demagnetization. In the present work we report temperature dependences of two basic magnetocaloric response functions: the isothermal entropy change and the adiabatic change of temperature. It is shown that the Ising octahedron and dodecahedron generally exhibit a large negative isothermal entropy change upon increasing of the magnetic field, which serves in evidence of their cooling performance.