Thermal stability conditions of a weakly interacting Fermi gas in a weak magnetic field

作     者：Fudian Mena,Hui Liub,Houyu Zhua a College of Physics Science and Technology,China University of Petroleum(East China),Dongying 257061,China b College of Science,Anhui Science and Technology University,Fengyang 233100,China 

作者机构：College of Physics Science and Technology China University of Petroleum (East China) Dongying 257061 China College of Science Anhui Science and Technology University Fengyang 233100 China 

出 版 物：《Progress in Natural Science:Materials International》 (自然科学进展·国际材料(英文))

年 卷 期：2009年第19卷第1期

页      面：121-124页

核心收录：

学科分类：0809[工学-电子科学与技术（可授工学、理学学位）] 08[工学] 

主　　题：Fermi gas Interaction Heat capacity Stability 

摘      要：On the basis of the results derived from pseudopotential method and ensemble theory,thermal stability of a weakly interacting Fermi gas in a weak magnetic field is studied by using analytical method of *** exact analytical expressions of stability conditions at different temperatures are given,and the effects of interactions as well as magnetic field on the stability of the system are *** is shown that there is an upperlimit magnetic field for the stability of the system at low temperatures,and there is an attractive dividing value at high *** attractive interaction is lower than the critical value,the stability of the system has no request for magnetic field,but if attractive interaction is higher than the dividing value,a lower-limit magnetic field exists for the stability of the system.