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17 papers · 2 filters
Topological protection of bound states against the hybridization
Bohm-Jung Yang, Mohammad Saeed Bahramy, Naoto Nagaosa
Topological invariants are conventionally known to be responsible for protection of extended states against disorder. A prominent example is the presence of topologically protected…
The ESR intensity and the Dzyaloshinsky-Moriya interaction of the nanoscale molecular magnet V15
Manabu Machida, Toshiaki Iitaka, Seiji Miyashita
The intensity of electron spin resonance (ESR) of the nanoscale molecular magnet V15 is studied. We calculate the temperature dependence of the intensity at temperatures from high…
Electromagnetic and thermal responses in topological matter: topological terms, quantum anomalies and D-branes
Akira Furusaki, Naoto Nagaosa, Kentaro Nomura +2
We discuss the thermal (or gravitational) responses in topological superconductors and in topological phases in general. Such thermal responses (as well as electromagnetic response…
Criticality of the metal-topological insulator transition driven by disorder
Ai Yamakage, Kentaro Nomura, Ken-Ichiro Imura +1
Employing scaling analysis of the localization length, we deduce the critical exponent of the metal-topological insulator (TI) transitions induced by disorder. The obtained exponen…
Temperature Dependence of Highly Excited Exciton Polaritons in Semiconductor Microcavities
Tomoyuki Horikiri, Yasuhiro Matsuo, Yutaka Shikano +4
Observations of polariton condensation in semiconductor microcavities suggest that polaritons can be exploited as a novel type of laser with low input-power requirements. The low-e…
Experimental Verification of Comparability between Spin-Orbit and Spin-Diffusion Lengths
Yasuhiro Niimi, Dahai Wei, Hiroshi Idzuchi +3
We experimentally confirmed that the spin-orbit lengths of noble metals obtained from weak anti-localization measurements are comparable to the spin diffusion lengths determined fr…