北京师范大学学报（自然科学版）2016，Vol.52Issue(5)：556-560,5.DOI:10.16360/j.cnki.jbnuns.2016.05.004
二维含铁磁耦合费米气体磁学性质的研究∗
Magnetic properties of two-dimensional Fermi gases with ferromagnetic interaction
摘要
Abstract
Mean-field self-consistent equations of two-dimensional spin-1/2 Fermi gases with ferromagnetic interaction are derived within the mean-field theory.Magnetic properties are then investigated through quantum statistics.Paramagnetism and diamagnetism are found to compete with each other with increasing Lande-factor.With increasing magnetic field intensity,magnetization intensity increases until a maximum value point appears.With increasing ferromagnetic coupling,the maximum point moves toward the direction of weakening magnetic field.With increasing Lande-factor,transition from diamagnetism to paramagnetism is observed.关键词
平均场理论/顺磁性和抗磁性/铁磁耦合相互作用Key words
mean-field theory/paramagnetism and diamagnetism/ferromagnetic interaction分类
数理科学引用本文复制引用
刘旭,秦吉红,梁颖..二维含铁磁耦合费米气体磁学性质的研究∗[J].北京师范大学学报（自然科学版）,2016,52(5):556-560,5.基金项目
中央高校基本科研业务费基金资助项目(FRF-BR-15-009B) （FRF-BR-15-009B）
北京高等学校青年英才计划资助项目(YETP0389) （YETP0389）
国家自然科学基金资助项目(11004006) （11004006）
