It is found that the sharp resistivity peak observed near the Curie temperature TC in the manganites R1-xAxMnO3 is closely correlated to the residual resistivity ρ0 of the sample, suggesting that nonmagnetic randomness plays an important role in deter . . .

The kagome spin-12 systems have attracted intensive attention in recent years as the primary candidate for hosting different gapped spin liquids (SLs). To uncover the nature of the novel quantum phase transition between the SL states, we study a minim . . .

Using the four-terminal Landauer-Büttiker formula and Green’s function approach, we calculate numerically the spin-Hall conductance in a two-dimensional junction system with the Rashba spin-orbit (SO) coupling and disorder. We find that the spin-Hall . . .

We study the many-body localization of spin chain systems with quasiperiodic fields. We identify the lower bound for the critical disorder necessary to drive the transition between the thermal and many-body localized phase to be Wc>1.85, based on fini . . .

We propose a theory for a doped antiferromagnet based on the bosonic resonating-valence-bond (RVB) description incorporating the phase string effect. Both antiferromagnetic and superconducting phase transitions occur naturally inside such a bosonic RV . . .

A real spin-charge separation scheme is found based on a saddle-point state of the t-J model. In the one-dimensional (1D) case, such a saddle-point reproduces the correct asymptotic correlations at the strong-coupling fixed point of the model. In the . . .

In the present work, we explore soliton and roguelike wave solutions in the transmission line analog of a nonlinear left-handed metamaterial. The nonlinearity is expressed through a voltage-dependent, symmetric capacitance motivated by recently develo . . .

We study the ground-state phase diagram of the quantum spin-1/2 Heisenberg model on the kagome lattice with first- (J1<0), second- (J2<0), and third-neighbor interactions (Jd>0) by means of analytical low-energy field theory and numerical density-matr . . .

Bi3Mn4O12(NO3) is a recently synthesized spin-3/2 bilayer honeycomb antiferromagnet which behaves as a spin liquid down to very low temperatures. Beyond a magnetic field of about 5 T, it develops long-range Néel order. Motivated by this observation, w . . .

Ground-state properties of the attractive Hubbard model in one dimension are studied by means of both the exact Bethe-ansatz formalism and the self-consistent field (SCF) approach with renormalized chemical potential for general band fillings n and a . . .