SPIN RESISTIVITY IN THE FRUSTRATED J1 - J2 MODEL
نویسندگان
چکیده
منابع مشابه
The ground-state magnetic ordering of the spin-1/2 frustrated J1–J2 XXZ model on the square lattice
Using the coupled-cluster method for infinite lattices and the exact diagonalization method for finite lattices, we study the influence of an exchange anisotropy ∆ on the groundstate phase diagram of the spin-1/2 frustrated J1–J2 XXZ antiferromagnet on the square lattice. We find that increasing ∆ > 1 (i.e. an Ising type easy-axis anisotropy) as well as decreasing ∆ < 1 (i.e. an XY type easy-pl...
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superconductivity of strongly correlated systems[2]. The exciting properties of spin liquids such as deconfined quasiparticles and fractional statistics have been revealed in many artificially constructed systems such as quantum dimer models[3– 5], Kagome spin model in the easy axis limit[6–10], and Kitaev model[11]. The possibility of finding spin liquids in realistic Heisenberg models, which ...
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We study the spin1 2 Heisenberg model on the square lattice with firstand second-neighbor antiferromagnetic interactions J1 and J2, which possesses a nonmagnetic region that has been debated for many years and might realize the interesting Z2 spin liquid (SL). We use the density matrix renormalization group approach with explicit implementation of SU(2) spin rotation symmetry and study the mode...
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in the Spin-2 J1-J2 Square Heisenberg Model Shou-Shu Gong, Wei Zhu, D. N. Sheng, Olexei I. Motrunich, and Matthew P. A. Fisher Department of Physics and Astronomy, California State University, Northridge, California 91330, USA Department of Physics, California Institute of Technology, Pasadena, California 91125, USA Department of Physics, University of California, Santa Barbara, California 9310...
متن کاملIsing phase in the J1-J2 Heisenberg model
The two-dimensional Heisenberg antiferromagnet on the square lattice with nearest sJ1d and next-nearest sJ2d neighbor couplings is investigated in the strong frustration regime sJ2 /J1.1/2d. A new effective field theory describing the long wavelength physics of the model is derived from the quantum Hamiltonian. The structure of the resulting nonlinear sigma model allows us to recover the known ...
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ژورنال
عنوان ژورنال: Modern Physics Letters B
سال: 2011
ISSN: 0217-9849,1793-6640
DOI: 10.1142/s0217984911026644