Helicity modulus in the two-dimensional Hubbard model
نویسندگان
چکیده
منابع مشابه
Helicity Modulus and Effective Hopping in the Two-dimensional Hubbard Model Using Slave-boson Methods
The slave-boson mean-field method is used to study the two-dimensional Hubbard model. A magnetic phase diagram allowing for paramagnetism, weakand strong ferromagnetism and antiferromagnetism is constructed and compared to the corresponding phase diagram using the Hartree-Fock approximation (HFA). Magnetically ordered regions are reduced by a factor of awi ıbout 3 along both the t/U and density...
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ژورنال
عنوان ژورنال: Physical Review B
سال: 1993
ISSN: 0163-1829,1095-3795
DOI: 10.1103/physrevb.47.6256