Nonlocal string order parameter in the S=12 Kitaev-Heisenberg ladder
نویسندگان
چکیده
منابع مشابه
Global phase diagram of a doped Kitaev-Heisenberg model
The global phase diagram of a doped Kitaev-Heisenberg model is studied using an SU (2) slave-boson mean-field method. Near the Kitaev limit,p-wave superconducting states which break the time-reversal symmetry are stabilized as reported by You et al. [Phys. Rev. B 86, 085145 (2012)] irrespective of the sign of the Kitaev interaction. By further doping, a d-wave superconducting state appears when...
متن کاملScaling Theory of Antiferromagnetic Heisenberg Ladder Models
The S = 1/2 antiferromagnetic Heisenberg model on multi-leg ladders is investigated. Criticality of the ground-state transition is explored by means of finite-size scaling. The ladders with an even number of legs and those with an odd number of legs are distinguished clearly. In the former, the energy gap opens up as ∆E ∼ J⊥, where J⊥ is the strength of the antiferromagnetic inter-chain couplin...
متن کاملSpin dynamics of SrCu2O3 and the Heisenberg ladder.
The S = 1/2 Heisenberg antiferromagnet in the ladder geometry is studied as a model for the spin degrees of freedom of SrCu2O3. The susceptibility and the spin echo decay rate are calculated using a quantum Monte Carlo technique, and the spin-lattice relaxation rate is obtained by maximum entropy analytic continuation of imaginary time correlation functions. All calculated quantities are in rea...
متن کاملUnconventional pairing and electronic dimerization instabilities in the doped Kitaev-Heisenberg model
Daniel D. Scherer,1,* Michael M. Scherer,2 Giniyat Khaliullin,3 Carsten Honerkamp,4 and Bernd Rosenow1,5 1Institut für Theoretische Physik, Universität Leipzig, D-04103 Leipzig, Germany 2Institut für Theoretische Physik, Universität Heidelberg, D-69120 Heidelberg, Germany 3Max-Planck-Institut für Festkörperforschung, D-70569 Stuttgart, Germany 4Institute for Theoretical Solid State Physics, RWT...
متن کاملExact spectra, spin susceptibilities, and order parameter of the quantum Heisenberg antiferromagnet on the triangular lattice.
Exact spectra, spin susceptibilities and order parameter of the quantum Heisenberg antiferromagnet on the triangular lattice. Abstract Exact spectra of periodic samples are computed up to N = 36. Evidence of an extensive set of low lying levels, lower than the softest magnons, is exhibited. These low lying quantum states are degenerated in the thermodynamic limit; their symmetries and dynamics ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Physical Review B
سال: 2019
ISSN: 2469-9950,2469-9969
DOI: 10.1103/physrevb.99.195112