95 citations
3 papers
cond-mat.str-el2004★ 9 cited
Phase diagram of S=1 XXZ chain with next-nearest neighbor interaction
Takahiro Murashima, Keigo Hijii, Kiyohide Nomura +1
The one dimensional S=1 XXZ model with next-nearest-neighbor interaction and Ising-type anisotropy is studied by using a numerical diagonalization technique. We discuss the…
cond-mat.str-el2003★ 44 cited
Fractional S^z excitation and its bound state around the 1/3 plateau of the S=1/2 Ising-like zigzag XXZ chain
Kouichi Okunishi, Takashi Tonegawa
We present the microscopic view for the excitations around the 1/3 plateau state of the Ising-like zigzag XXZ chain. We analyze the low-energy excitations around the plateau with t…
cond-mat.stat-mech2002★ 95 cited
Magnetic phase diagram of the S=1/2 antiferromagnetic zigzag spin chain in the strongly frustrated region: cusp and plateau
Kouichi Okunishi, Takashi Tonegawa
We determine the magnetic phase diagram of the antiferromagnetic(AF) zigzag spin chain in the strongly frustrated region, using the density matrix renormalization group method. We…