3He superfluid phases in a magnetic field

Autor:	M. F. McInerney
Rok vydání:	1981
Předmět:	Grand potential Physics Condensed matter physics Function (mathematics) BCS theory Condensed Matter Physics Atomic and Molecular Physics and Optics Magnetic field Superfluidity Self-energy Quantum electrodynamics General Materials Science Isotopes of helium Phase diagram
Zdroj:	Journal of Low Temperature Physics. 45:249-269
ISSN:	1573-7357 0022-2291
DOI:	10.1007/bf00655132
Popis:	A Green's function approach is used to derive an approximate expression for the grand potential in the presence of a magnetic field. This approximation is used to derive a relation between the A1, A, and B phases as functions of temperature and magnetic field strength. Where the approximation is quantitatively valid, comparison with experiment is made, as a result of which a value for the gap rather less than the BCS value is derived. A value for the difference between the Balian-Werthamer and Anderson-Brinkman-Morel terms in the grand potential to sixth order in the gap function at the polycritical pressure is also found.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::3a831031dbbda847f330f421fb30aaad https://doi.org/10.1007/bf00655132 Zobrazit plný text záznamu Full text from SpringerLink