%0 Journal Article
%T EFFECT OF EXTERNAL MAGNETIC FIELD ON LOW-ENERGY BEHAVIOR OF ONE-DIMENSIONAL HEISENBERG CHAIN<br>磁场对一维Heisenberg链低能行为的影响
%A GAO YANG
%A ZHANG YU-MEI
%A CHEN HONG
%A <br>高 阳
%A 章豫梅
%A 陈 鸿
%J 物理学报
%D 2000
%I 
%X Spin-1/2 anisotropic Heisenberg chain in longitudinal external magnetic field is studied by traditional Jordan-Wigner transformation and bosonization method. In the presence of an external field, both Fermi velocity and Fermi momentum are changed, thus the bosonization procedure is also changed. The antiferromagnetic phase and paramagnetic phase are discussed and the dependence of ground state energy and magnetization on the field are calculated and depicted for some typical cases.
%K Heisenberg chain
%K magnetic field
%K strong correlation<br>Heisenberg链，
%K 磁场，
%K 强关联
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=47EA7CFDDEBB28E0&jid=29DF2CB55EF687E7EFA80DFD4B978260&aid=47CCBE99C69FAD7D0103B5B1AC7FE1B1&yid=9806D0D4EAA9BED3&vid=2A3781E88AB1776F&iid=5D311CA918CA9A03&sid=19C298A6E9FC7563&eid=F7B1A3F8BE432B4F&journal_id=1000-3290&journal_name=物理学报&referenced_num=0&reference_num=4