Ground state phase diagram of an S=1/2 frustrated 3-leg spin ladder system and properties of an intermediate phase

Hijii, Keigo; Sakai, Toru

We investigate an S=1/2 frustrated 3-leg spin ladder system. Using a perturbation theory from a strong coupling limit and numerical diagonalization, we clarify the ground state phase diagram and find out a nontrivial intermediate phase. Furthermore we find out a possibility that magnon bound states appear.

Language	:	Japanese
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Meeting title	:	京都大学基礎物理学研究所研究会「量子スピン系の物理」
Held date	:	2012/11
Location (city)	:	京都
Location (country)	:	日本
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Registration No. : BB20122479
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