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143 papers · 1 filter
Supercurrent in the quantum Hall regime
Francois Amet, Chung Ting Ke, Ivan V. Borzenets +8
A novel promising route for creating topological states and excitations is to combine superconductivity and the quantum Hall (QH) effect. Despite this potential, signatures of supe…
Stochastic Estimation of Nuclear Level Density in the Nuclear Shell Model: An Application to Parity-Dependent Level Density in Ni
Noritaka Shimizu, Yutaka Utsuno, Yasunori Futamura +3
We introduce a novel method to obtain level densities in large-scale shell-model calculations. Our method is a stochastic estimation of eigenvalue count based on a shifted Krylov-s…
Chiral surface twists and skyrmion stability in nanolayers of cubic helimagnets
A. O. Leonov, Y. Togawa, T. L. Monchesky +15
Lorentz transmission electron microscopy (LTEM) investigations of modulated states in a FeGe wedge and detailed calculations demonstrate that chiral twists arising near the surface…
Intrinsic high electrical conductivity of stoichiometric SrNbO3 epitaxial thin films
Daichi Oka, Yasushi Hirose, Shoichiro Nakao +2
SrVO3 and SrNbO3 are perovskite-type transition-metal oxides with the same d1 electronic configuration. Although SrNbO3 (4d1) has a larger d orbital than SrVO3 (3d1), the reported…
Superconducting Transport in single and parallel double InAs Quantum Dot Josephson Junctions with Nb-based Superconducting Electrodes
Shoji Baba, Juergen Sailer, Russell S. Deacon +4
We report conductance and supercurrent measurements for InAs single and parallel double quantum dot Josephson junctions contacted with Nb or NbTiN superconducting electrodes. Large…
Discrete time approximation of a COGARCH(p,q) model and its estimation
Stefano M. Iacus, Lorenzo Mercuri, Edit Rroji
In this paper, we construct a sequence of discrete time stochastic processes that converges in probability and in the Skorokhod metric to a COGARCH(p,q) model. The result is useful…