Takashi Tonegawa   Toshiya Hikihara   Kiyomi Okamoto   Shunsukc C. Furuya   Toru Sakai   
JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN 87(10) 104002-1-104002-11 2018年10月 [査読有り]
We explore the ground-state phase diagram of the S = 1/2 two-leg ladder with different leg interactions. The xy- and z-components of the leg interactions between nearest-neighbor spins in the a (b) leg are respectively denoted by J(1,a) and Delta(...