On Iachello's model of cuprate superconductors

Autor:	Ady Mann, Joseph L. Birman, Y. Krivolapov
Rok vydání:	2007
Předmět:	Condensed Matter::Quantum Gases Physics Superconductivity symbols.namesake Condensed matter physics symbols Cuprate Condensed Matter Physics Hamiltonian (quantum mechanics) Heat capacity Phase diagram Fermi Gamma-ray Space Telescope Boson
Zdroj:	Philosophical Magazine Letters. 87:533-539
ISSN:	1362-3036 0950-0839
DOI:	10.1080/09500830701280931
Popis:	A U(3) model proposed by Iachello for superconductivity in cuprate materials is analyzed. The model consists of s and d pairs (approximated as bosons) in a two-dimensional Fermi system with a surface. The transition occurs between a phase in which the system is a condensate of one of the bosons, and a phase which is a mixture of two types of bosons. In the current work we have investigated the validity of the Bogoliubov approximation, and we used a reduced Hamiltonian to determine a phase diagram, the symmetry of the phases and the temperature dependence of the heat capacity.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::eb93061f35423e917f6f5a5acd227762 https://doi.org/10.1080/09500830701280931 Zobrazit plný text záznamu Plný text ve formátu PDF Plný text ve formátu HTML
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