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Journal of the Korean Physical Society 74, 488~497 (2019)

ISSN: 0374-4884, SCI

A Microscopic Model for Superconductivity in Ferromagnetic UGe2

Hinh Nguyen Van, Lan Nguyen Tri

The phenomenological Ginzburg-Landau model with two order parameters appears in many works of D.V. Shopova and D. I. Uzunov. Here, we develop a microscopic approach that, on the basis of mean- eld theory and the functional integral formalism, establishes the two-component Ginzburg- Landau functional to show the correlation between the ferromagnetic and the triplet superconducting order parameters. The meanings of the constants encountered in the phenomenological theory are clari ed.

DOI: 10.3938/jkps.74.488