6 papers
Charge localization and phonon spectra in hole doped La2NiO4
R. J. McQueeney, A. R. Bishop, Ya-Sha Yi +1
The in-plane oxygen vibrations in La2NiO4 are investigated for several hole-doping concentrations both theoretically and experimentally via inelastic neutron scattering. Using an i…
Signatures of Stripe Phases in Hole Doped
Ya-Sha Yi, Zhi-Gang Yu, A. R. Bishop +1
We study nickelate-centered and oxygen-centered stripe phases in doped LaNiO materials. We use an inhomogeneous Hartree-Fock and random-phase approximation approach inc…
Aharonov-Anandan Effect Induced by Spin-Orbit Interaction and Charge-Density-Waves in Mesoscopic Rings
Ya-Sha Yi, A. R. Bishop
We study the spin-dependent geometric phase effect in mesoscopic rings of charge-density-wave(CDW) materials. When electron spin is explicitly taken into account, we show that the…
Jahn-Teller Effect in Systems
Lin Tian, Ya-Sha Yi, Chui-Lin Wang +1
The electron-phonon interaction in anions is studied by making use of a lattice relaxation approach. We find there exists a Jahn-Teller effect in system, due…
Spin Precession and Time-Reversal Symmetry Breaking in Quantum Transport of Electrons Through Mesoscopic Rings
Ya-Sha Yi, Tie-Zheng Qian, Zhao-Bin Su
We consider the motion of electrons through a mesoscopic ring in the presence of spin-orbit interaction, Zeeman coupling, and magnetic flux. The coupling between the spin and the o…
Persistent Current From the Competition Between Zeeman Coupling and Spin-Orbit Interaction
Tie-Zheng Qian, Ya-Sha Yi, Zhao-Bin Su
Applying the non-adiabatic Aharonov-Anandan phase approach to a mesoscopic ring with non-interacting many electrons in the presence of the spin-orbit interaction, Zeeman coupling a…