Nonmagnetic-defect-induced magnetism in graphene

被引:60
作者
Kumazaki, Hideki [1 ]
Hirashima, Dai S. [1 ]
机构
[1] Nagoya Univ, Dept Phys, Nagoya, Aichi 4648602, Japan
关键词
graphene; vacancies; defects; magnetic moment;
D O I
10.1143/JPSJ.76.064713
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
It is shown that a strong impurity potential induces short-range antiferromagnetic (ferrimagnetic) order around itself in a Hubbard model on a half-filled honeycomb lattice. This implies that short-range magnetic order is induced in monolayer graphene by a nonmagnetic defect such as a vacancy with full hydrogen termination or a chemisorption defect.
引用
收藏
页数:5
相关论文
共 21 条
[1]   Weak ferromagnetism and spiral spin structures in honeycomb Hubbard planes [J].
Araújo, MAN ;
Peres, NMR .
JOURNAL OF PHYSICS-CONDENSED MATTER, 2006, 18 (05) :1769-1779
[2]  
Esquinazi P, 2002, PHYS REV B, V66, DOI 10.1103/PhysRevB.66.024429
[3]   Peculiar localized state at zigzag graphite edge [J].
Fujita, M ;
Wakabayashi, K ;
Nakada, K ;
Kusakabe, K .
JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 1996, 65 (07) :1920-1923
[4]   Unconventional integer quantum Hall effect in graphene [J].
Gusynin, VP ;
Sharapov, SG .
PHYSICAL REVIEW LETTERS, 2005, 95 (14)
[5]  
KUMAZAKI H, 2007, J PHYS SOC JPN, V76
[6]   Effects of impurities in two-dimensional graphite [J].
Kumazaki, Hideki ;
Hirashima, Dai S. .
JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 2006, 75 (05)
[7]   2 THEOREMS ON THE HUBBARD-MODEL [J].
LIEB, EH .
PHYSICAL REVIEW LETTERS, 1989, 62 (10) :1201-1204
[8]   Hydrogen-induced magnetism in carbon nanotubes [J].
Ma, YC ;
Lehtinen, PO ;
Foster, AS ;
Nieminen, RM .
PHYSICAL REVIEW B, 2005, 72 (08)
[9]  
MARAKOVA TL, 2006, CARBON BASED MAGNETI, P48302
[10]   Edge state in graphene ribbons: Nanometer size effect and edge shape dependence [J].
Nakada, K ;
Fujita, M ;
Dresselhaus, G ;
Dresselhaus, MS .
PHYSICAL REVIEW B, 1996, 54 (24) :17954-17961