Fermion Bound States Around Skyrmions in Doped Antiferromagnets
KOU Su-Peng
Department of Physics, Beijing Normal University, Beijing
100875
Fermion Bound States Around Skyrmions in Doped Antiferromagnets
KOU Su-Peng
Department of Physics, Beijing Normal University, Beijing
100875
关键词 ：
74.20.Mn ,
74.25.Ha ,
75.10.-b
Abstract ： We show the skyrmion effects in doped antiferromagnets for the uniform flux phase. The low energy effective theory of the t' - J model can be mapped onto the massive quantum electrodynamics. There exist Fermion bound states around skyrmions. For each sublattice, there exist induced fractional fermion numbers around the skyrmions. The total induced fermion number is zero due to the “canceling effect”between two sublattices with opposite charges.
Key words ：
74.20.Mn
74.25.Ha
75.10.-b
出版日期: 2003-08-01
:
74.20.Mn
(Nonconventional mechanisms)
74.25.Ha
(Magnetic properties including vortex structures and related phenomena)
75.10.-b
(General theory and models of magnetic ordering)
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2003, Vol. 20 
