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1. Ground-State Phase Diagram of the S=1/2 Distorted Diamond Type Spin Chain with Ferromagnetic Interactions

Author

Tsutoshi Yamada, Mikito Koga, Masashige Matsumoto, Kiyomi Okamoto, Takashi Tonegawa, and Tôru Sakai

Subjects
Physics, Diamond type, Physics and Astronomy (miscellaneous), Field (physics), Ferromagnetism, Condensed matter physics, Ground state, Plateau (mathematics), Spin chain, Phase diagram, Magnetic field
Abstract

We investigate, analytically and numerically, the ground state of the S = 1/2 distorted diamond type spin chain having three kinds of couplings, where one or two types of the couplings are ferromagnetic. We obtained the phase diagram at zero-magnetic field and also at M s /3, where M s is the saturation magnetization. We also discuss the plateau at (2/3)M s .

Published
2005

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