Possible mechanism of charge stripe formation based on the ring exchange interaction |
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Authors: | T Sakai |
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Institution: | Synchrotron Radiation Research Center, Japan Atomic Energy Agency, Hyogo 679-5148 and CREST, JST, Japan |
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Abstract: | Using the numerical diagonalization of the finite-cluster t–J model, we investigate the mechanism of the charge stripes based on the ring exchange interaction. We calculate the many-hole correlation functions related with the two-types of charge stripes; the vertical and diagonal types of the charge stripe. As a result, we present a phase diagram including the two stripe phases and a phase separation phase. |
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