The quantum phase transition in the spin-1/2 XX Heisenberg chain model with three-spin interaction is studied. Using the Jordan-Wigner transformation, several thermodynamic, as well as thermal and spin transport quantities of the system are calculated exactly. It is shown that the three-spin interaction influences the calculated quantities and leads to characteristic features of the quantum phase transition. The effects of a finite magnetic field on the magnetic moment and magnetic susceptibility are also discussed.
|頁（從 - 到）||064405-1-064405-7|
|期刊||Physical Review B - Condensed Matter and Materials Physics|
|出版狀態||已發佈 - 2004 八月|
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