55 citations · 295 across the 51 of their papers we have counts for
11 papers · 1 filter
Current induced transition of anisotropic quantum Hall states
Kazumi Tsuda, Nobuki Maeda, Kenzo Ishikawa
We compare the energies of the striped Hall state and the anisotropic charge density wave (ACDW) state at half-filled third and higher Landau levels in the system with injected cur…
Photon energy absorption rate of a striped Hall gas
Y. Ishizuka, T. Aoyama, N. Maeda +1
Using symmetries of the current correlation function, we analyze the frequency dependence of the photon energy absorption rate of a striped Hall gas. Since the magnetic translation…
Intra-Landau level polarization effect for a striped Hall gas
T. Aoyama, K. Ishikawa, Y. Ishizuka +1
We calculate the polarization function including only intra-Landau level correlation effects of striped Hall gas. Using the polarization function, the dielectric function, the disp…
Field Theory of Anisotropic Quantum Hall Gas: Metrology and a Novel Quantum Hall Regime
K. Ishikawa, T. Aoyama, Y. Ishizuka +1
The von Neumann lattice representation is a convenient representation for studying several intriguing physics of quantum Hall systems. In this formalism, electrons are mapped to la…
Optimal orientation of striped states in the quantum Hall system against external modulations (in 26th ICPS proceedings)
T. Aoyama, K. Ishikawa, N. Maeda
The physical properties of striped Hall state in the presence of an external unidirectional periodic potential is investigated. The study of searching the optimal orientation of th…
Unusual Properties of Anisotropic Hall Gas: Implication to Metrology of the Integer Quantum Hall Effect
K. Ishikawa, N. Maeda
Physical properties of anisotropic compressible quantum Hall states and their implications to integer quantum Hall effect are studied based on a mean field theory on the von Neuman…
Pressure, Resistance, and Current Activation of Anisotropic Compressible Hall States
K. Ishikawa, N. Maeda
Thermodynamic and electric properties of anisotropic compressible Hall states at higher Landau levels are studied using a mean field theory on the von Neumann lattice basis. It is…
Negative Pressure of Anisotropic Compressible Hall States : Implication to Metrology
K. Ishikawa, N. Maeda
Pressure, compressibility, and Hall conductance of anisotropic states at higher Landau levels are computed. Pressure and compressibility become negative. Hall conductance is unquan…
Stability of the compressible quantum Hall state around the half-filled Landau level
Kenzo Ishikawa, Nobuki Maeda, Tetsuyuki Ochiai
We study the compressible states in the quantum Hall system using a mean field theory on the von Neumann lattice. In the lowest Landau level, a kinetic energy is generated dynamica…
Quantum Hall Dynamics on von Neumann Lattice
K. Ishikawa, N. Maeda, T. Ochiai +1
Quantum Hall Dynamics is formulated on von Neumann lattice representation where electrons in Landau levels are defined on lattice sites and are treated systematically like lattice…
Theory of Current-Induced Breakdown of the Quantum Hall Effect
Kenzo Ishikawa, Nobuki Maeda, Tetsuyuki Ochiai +1
By studying the quantum Hall effect of stationary states with high values of injected current using a von Neumann lattice representation, we found that broadening of extended state…