Artigo
Magnetic, thermal, and entanglement properties of a distorted Ising-Hubbard diamond chain
Carregando...
Notas
Data
Orientadores
Editores
Coorientadores
Membros de banca
Título da Revista
ISSN da Revista
Título de Volume
Editor
Physical Society of Japan (PSJ)
Faculdade, Instituto ou Escola
Departamento
Programa de Pós-Graduação
Agência de fomento
Tipo de impacto
Áreas Temáticas da Extenção
Objetivos de Desenvolvimento Sustentável
Dados abertos
Resumo
NALBANDYAN, M. et al. Magnetic, thermal, and entanglement properties of a distorted Ising-Hubbard diamond chain. Journal of The Physical Society of Japan, [S.l.], v. 83, n. 7, June 2014. DOI: 10.7566/JPSJ.83.074001.
Abstract
The exact solution of the distorted Ising-Hubbard model for a diamond chain is obtained by means of transfer matrix method. Based on this solution the magnetic, thermal and concurrence properties of the system are studied. We discuss in detail the ground state varying values of Ising and Hubbard interaction couplings, hopping amplitude, magnetic field, chemical potential and get paramagnetic, ferromagnetic, antiferromagnetic and ferrimagnetic phases of the system. Plateaus in magnetization curves and several-peak structures of the specific heat curve for different values of Hamiltonian parameters are obtained. The dependence of concurrence in Hubbard dimers from chain parameters, external magnetic field and temperature are studied.