期刊
JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN
卷 80, 期 11, 页码 -出版社
PHYSICAL SOC JAPAN
DOI: 10.1143/JPSJ.80.114705
关键词
impurity scattering; diamagnetism; level broadening; Dirac point; topological singularity
资金
- Ministry of Education, Culture, Sports, Science and Technology Japan
- Grants-in-Aid for Scientific Research [19054004, 22540326] Funding Source: KAKEN
The diamagnetic susceptibility is calculated in disordered monolayer graphene in spatially varying magnetic field within a self-consistent Born approximation. The universality that the susceptibility is a function of q/2k(F) in ideal graphene is nearly valid in the weak-disorder case except that the susceptibility becomes nonzero even for slowly-varying field. In the case of strong disorder the universal behavior is completely destroyed. The mirror-image-like response to a magnet is still valid at the Dirac point as long as the disorder is sufficiently weak.
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