منابع مشابه
The Berry phase in frustrated spin glass
In this letter we have pointed out that frustration in spin glass is realized through the Berry phase due to the conflict between the spin ordering in the course of parallel transport of spinor. We have came to the point that the Berry phase depicting the chiral change of helicity of a quantized spinor is prominent only in the presence of frustration.
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We give a short review of our recent works on the first-order quantum phase transitions in frustrated spin chains with orthogonal-dimer structure. When the ratio of the competing antiferromagnetic exchange couplings is varied, a first-order transition occurs between the dimer phase and the plaquette phase, which is accompanied by the discontinuity in the spin excitation gap. We further show tha...
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A Bethe-Peierls treatment to dilution in short range frustrated magnets and spin liquids is given. The ferromagnetic bonds of a Cayley tree are diluted and a next nearest neighbor antiferromagnetic coupling is added by completing the triangles in a Husimi cactus fashion. A spin glass phase is present at low temperatures and close to the percolation point as soon as frustration is switched on in...
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The low-energy properties of one-dimensional quantum spin systems with frustrating interactions have been studied extensively for many years. This is mainly because they exhibit a variety of ground-state phases accompanied with various types of spontaneous symmetry breaking, e.g., the dimer phase with the translational symmetry breaking. More recently novel phases have been found in the ground ...
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C. H. Booth, J. S. Gardner, G. H. Kwei, R. H. Heffner, F. Bridges, and M. A. Subramanian Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720 Los Alamos National Laboratories, Los Alamos, New Mexico 87545 Department of Physics, University of California, Santa Cruz, California 95064 Dupont Central Research and Development, Experimental Station, Wilmington...
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ژورنال
عنوان ژورنال: Physica Scripta
سال: 2010
ISSN: 0031-8949,1402-4896
DOI: 10.1088/0031-8949/82/02/025703