141 citations · 295 across the 6 of their papers we have counts for
6 papers
n-type electrical conduction in SnS thin films
Issei Suzuki, Sakiko Kawanishi, Sage R. Bauers +7
Tin monosulfide (SnS) usually exhibits p-type conduction due to the low formation enthalpy of acceptor-type defects, and as a result n-type SnS thin films have never been obtained.…
Ultimate low system dark count rate for superconducting nanowire single-photon detector
Hiroyuki Shibata, Kaoru Shimizu, Hiroki Takesue +1
The dark count rate (DCR) is a key parameter of single-photon detectors. By introducing a bulk optical band-pass filter mounted on a fiber-to-fiber optical bench cooled at 3 K and…
Quantum key distribution over a 72 dB channel loss using ultralow dark count superconducting single-photon detectors
Hiroyuki Shibata, Toshimori Honjo, Kaoru Shimizu
We report the first Quantum key distribution (QKD) experiment over a 72 dB channel loss using superconducting nanowire single-photon detectors (SSPD, SNSPD) with the dark count rat…
Superconducting nanowire single-photon detector with ultralow dark count rate using cold optical filters
H. Shibata, K. Shimizu, H. Takesue +1
We report the fabrication of a superconducting nanowire single-photon detector (SSPD or SNSPD) with an ultralow dark count rate. By introducing optical band-pass filters at the inp…
Charge transfer gap for T'-RE2CuO4 and T-La2CuO4 as estimated from Madelung potential calculations
A. Tsukada, H. Shibata, M. Noda +2
T'-RE2CuO4 (RE: rare-earth element), after appropriate "reduction", has fairly high conductivity and also exhibits clear Fermi edge in photoemission spectroscopy. To clarify the or…
Josephson Plasma in RuSr2GdCu2O8
H. Shibata
Josephson plasma in RuSrGdCuO, RuSrGdCuO (x = 0.3), and RuSrEuCeCuO (x = 0.5) compounds is investigat…