Physical properties of one-dimensional spin chains

• Grant number: 13/17338-4
• Support Opportunities: Scholarships in Brazil - Doctorate
• Start date: March 01, 2014
• End date: August 31, 2017
• Field of knowledge: Physical Sciences and Mathematics - Physics - General Physics
• Principal Investigator: Giuliano Augustus Pavan Ribeiro
• Grantee: Thiago Silva Tavares
• Host Institution: Centro de Ciências Exatas e de Tecnologia (CCET). Universidade Federal de São Carlos (UFSCAR). São Carlos , SP, Brazil

Abstract

The purpose of this project is to study the thermodynamical properties of onedimensional quantum spin chains, as the t-J multichain and generalizations; completely anisotropic spin-1 chains, spin chain invariant by superalgebras. Recently systems of similar nature have been used to describe experimental results of quasi-unidimensional spin chains. We plan to use the quantum transfer matrix approach in order to obtain a closed set of nonlinear integral equations for the thermodynamics.

Scientific publications

(8)

(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)

TAVARES, T. S.; RIBEIRO, G. A. P.. Exact thermodynamics and phase diagram of integrable t-J model with chiral interaction. JOURNAL OF STATISTICAL MECHANICS-THEORY AND EXPERIMENT, SEP 2016. (15/01643-8, 15/07780-7, 13/17338-4)

TAVARES, T. S.; RIBEIRO, G. A. P.. Finite size and finite temperature studies of the osp(1 vertical bar 2) spin chain. Nuclear Physics B, v. 921, p. 357-374, AUG 2017. (15/01643-8, 13/17338-4)

TAVARES, T. S.; RIBEIRO, G. A. P.; KOREPIN, V. E.. Influence of boundary conditions on bulk properties of six-vertex model. Journal of Physics A-Mathematical and Theoretical, v. 48, n. 45, NOV 13 2015. (15/01643-8, 13/17338-4)

TAVARES, T. S.; RIBEIRO, G. A. P.; KOREPIN, V. E.. The entropy of the six-vertex model with a variety of different boundary conditions. JOURNAL OF STATISTICAL MECHANICS-THEORY AND EXPERIMENT, v. N/A, p. 31-pg., 2015-06-01. (12/24514-0, 13/17338-4)

TAVARES, T. S.; RIBEIRO, G. A. P.; KOREPIN, V. E.. The entropy of the six-vertex model with a variety of different boundary conditions. JOURNAL OF STATISTICAL MECHANICS-THEORY AND EXPERIMENT, JUN 2015. (12/24514-0, 13/17338-4)

TAVARES, T. S.; RIBEIRO, G. A. P.. Magnetocaloric effect in the spin-1/2 chain with competing interactions. JOURNAL OF STATISTICAL MECHANICS-THEORY AND EXPERIMENT, NOV 2014. (12/24514-0, 13/17338-4)

TAVARES, T. S.; RIBEIRO, G. A. P.. Magnetocaloric effect in the spin-1/2 chain with competing interactions. JOURNAL OF STATISTICAL MECHANICS-THEORY AND EXPERIMENT, v. N/A, p. 8-pg., 2014-11-01. (12/24514-0, 13/17338-4)

TAVARES, T. S.; RIBEIRO, G. A. P.. Exact thermodynamics and phase diagram of integrable t-J model with chiral interaction. JOURNAL OF STATISTICAL MECHANICS-THEORY AND EXPERIMENT, v. N/A, p. 23-pg., 2016-09-01. (15/01643-8, 13/17338-4, 15/07780-7)