214 citations · 1.6k across the 124 of their papers we have counts for
6 papers · 1 filter
Electron space charge effect on spin injection into semiconductors
Yue Yu, Jinbin Li, S. T. Chui
We consider spin polarized transport in a ferromagnet-insulator/semiconductor/insulator-ferromagnet (F1-I-S-I-F2) junction. We find that the spin current is strongly dependent on t…
Gossamer supercoductivity and the mean field approximation of a new effective Hubbard model
Yue Yu
We construct a new effective two-dimensional Hubbard model by taking the different electron occupancy on site into account. The mean field state of the new Hamiltonian gives rise t…
A Novel Meron-induced Pseudospin Wave in Bilayer Quantum Hall Coherent State and the Residual Zero-bias Peak in Tunneling Conductance
Yue Yu
In the bilayer quantum Hall coherent state for deviating slightly from one, we show that, instead of the global order parameter, the spontaneous breaking of the pseudospin U(…
Effect of Subband Landau Level Coupling to the Linearly Dispersing Collective Mode in a Quantum Hall Ferromagnet
Yue Yu
In a recent experiment (Phys. Rev. Lett. {\bf 87}, 036903 (2001)), Spielman et al observed a linearly dispersing collective mode in quantum Hall ferromagnet. While it qualitatively…
Lauglin-type wavefunction of two-dimensional electrons in the tilted magnetic field
Shi-JIe Yang, Yue Yu, Jin-Bin Li
We study the fractional quantum Hall states in the tilted magnetic field. A many-particle wavefunction of the ground state, which is similar to that of Laughlin's, is constructed i…
The Effect of the Tilted Field in the Fractional Quantum Hall Systems: Numerical Studies for the Solid-liquid Transition
Yue Yu, Shijie Yang
We construct a generalized Laughlin-liquid wave function and a variational electron solid wave function when the magnetic field is tilted. The energy of the liquid state is evaluat…