166 citations · 763 across the 35 of their papers we have counts for
36 papers
Landau Theory for Commensurate Charge-Density Waves Coupled to Uniform Lattice Deformation
Keiji Nakatsugawa, Toshiyuki Fujii, Satoshi Tanda
We formulate a minimal Landau theory for a charge-density wave (CDW) whose commensurability is defined with respect to a deformed lattice. The motivation is provided by recent obse…
Induced discommensurations in the lock-in transition of charge-density waves
Katsuhiko Inagaki, Satoshi Tanda
We studied McMillan's free energy of the lock-in transition in charge-density waves. The wave profiles near the critical value were obtained by numerical annealing. First, we demon…
Representations of Josephson junction on the unit circle and the derivations of Mathieu operators and Fraunhofer patterns
Toshiyuki Fujii, Fumio Hiroshima, Satoshi Tanda
The Hamiltonian J of the Josephson junction is introduced as a self-adjoint operator on l2 tensor l2. It is shown that J can also be realized as a self-adjoint operator HS1 on L2(S…
Revisitation of the lock-in transition in one-dimensional charge-density waves
Katsuhiko Inagaki, Keiji Nakatsugawa, Satoshi Tanda
We studied the lock-in transition of charge-density waves of one-dimensional conductors. Though this phenomenon has been known for decades, there are still discrepancies between th…
Conformality of Charge Density Wave
Keiji Nakatsugawa, Tatsuhiko N. Ikeda, Takeshi Toshima +1
New quantum phenomena are continuously being discovered in 2D systems. In particular, the charge density wave (CDW) has the aspect of a quantum crystal with a macroscopic wave func…
Magic thickness of 25 Å makes periodic metal-insulator transitions
M. Sakoda, H. Nobukane, S. Shimoda +1
Novel quantum phenomena, including high-temperature superconductivity, topological properties, and charge/spin density waves, appear in low-dimensional conductive materials. It is…