Physics – Condensed Matter – Strongly Correlated Electrons
Scientific paper
2002-11-18
Physics
Condensed Matter
Strongly Correlated Electrons
12 pages, 12 figures
Scientific paper
10.1140/epjb/e2003-00113-8
The quantum phase transition in the ground state of the Extended spin S=1/2
XY model is studied in detail. Using the exact solution of the model the low
temperature thermodynamics, as well as the ground state phase diagram of the
model in the presence of applied uniform and/or staggered magnetic field are
discussed.
Japaridze George I.
Titvinidze Irakli
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