Program

P.52 -- Poster, NCTP-40

Date: Tuesday, 28 July 2015

Time: 08h30 - 10h00

Ginzburg-Landau functional for three-order parameter problem

Nguyen Van Hinh (1, 2) and Nguyen Tri Lan (2)

(1) Faculty of Fundamental Science, Ha Noi University of Industry, Minh Khai, Bac Tu Liem, HaNoi (2) Institute of Physics, Vietnam Academy of Science and Technology, 10 Dao Tan, Ba Dinh, Hanoi

A model is presented utilizing a generic Hamiltonian with equal pairings in channels based on quantum field theory and functional integral formalism, to show the correlation among the order parameters which are described in multi-component Ginzburg-Landau functional. In the vicinity of the phase transition, the further perturbative expansions of the functional around the mean-field theory in the auxiliary fields are carried out with the aim of leading to a possible solution for the coexistence of many phases. The work is motivated by the recent theoretical researches and experimental evidences of the coexistence of superconductivity and ferromagnetism in U and Ce compounds.

Presenter: Nguyen Van Hinh