2 6 Se p 20 05 Collective Magnetic Excitations in SrCu 2 ( BO 3 ) 2
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Dzyaloshinski-Moriya interaction in the 2D spin gap system SrCu(2)(BO(3))(2).
The Dzyaloshinski-Moriya interaction partially lifts the magnetic frustration of the spin-1/2 oxide SrCu(2)(BO(3))(2). It explains the fine structure of the excited triplet state and its unusual magnetic field dependence, as observed in previous ESR and new neutron inelastic scattering experiments. We claim that it is mainly responsible for the dispersion. We propose also a new mechanism for th...
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Recent advances in condensed matter theory have revealed that new and exotic phases of matter can exist in spin models (or more precisely, local bosonic models) via a simple physical mechanism, known as ”string-net condensation.” These new phases of matter have the unusual property that their collective excitations are gauge bosons and fermions. In some cases, the collective excitations can beh...
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تاریخ انتشار 2005