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11 papers · 1 filter
Magnetic characterization and switching of Co nano-rings in current-perpendicular-to-plane configuration
T. Yang, M. Hara, A. Hirohata +2
We fabricated Co nano-rings incorporated in the vertical pseudo-spin-valve nanopillar structures with deep submicron lateral sizes. It is shown that the current-perpendicular-to-pl…
Conductance fluctuations in disordered superconductors with broken time-reversal symmetry near two dimensions
S. Ryu, A. Furusaki, A. W. W. Ludwig +1
We extend the analysis of the conductance fluctuations in disordered metals by Altshuler, Kravtsov, and Lerner (AKL) to disordered superconductors with broken time-reversal symmetr…
Full counting statistics for transport through a molecular quantum dot magnet
Ken-Ichiro Imura, Yasuhiro Utsumi, Thierry Martin
Full counting statistics (FCS) for the transport through a molecular quantum dot magnet is studied theoretically in the incoherent tunneling regime. We consider a model describing…
Nematic order in the multiple-spin exchange model on the triangular lattice
Tsutomu Momoi, Nic Shannon
We discuss the possibility of finding n-type nematic order in the vicinity of a FM phase in the multiple--spin exchange model on the triangular lattice. We study this problem both…
Octupolar order in the multiple spin exchange model on a triangular lattice
Tsutomu Momoi, Philippe Sindzingre, Nic Shannon
We show how a gapless spin liquid with hidden octupolar order arises in an applied magnetic field, in a model applicable to thin films of 3He with competing ferromagnetic and antif…
Landauer conductance and twisted boundary conditions for Dirac fermions in two space dimensions
S. Ryu, C. Mudry, A. Furusaki +1
We apply the generating function technique developed by Nazarov to the computation of the density of transmission eigenvalues for a two-dimensional free massless Dirac fermion, whi…