Faculty Profiles - KASHIWAYA Satoshi

Papers - KASHIWAYA Satoshi

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Development of suspended normal-metal-type tunneling junction refrigerator

Kashiwaya, S; Kashiwaya, H; Koyanagi, M; Tanaka, Y

JAPANESE JOURNAL OF APPLIED PHYSICS Vol. 55 ( 9 ) 2016.9

Inversion symmetry of Josephson current as test of chiral domain wall motion in Sr2RuO4

Saitoh Kohta, Kashiwaya Satoshi, Kashiwaya Hiromi, Mawatari Yasunori, Asano Yasuhiro, Tanaka Yukio, Maeno Yoshiteru

PHYSICAL REVIEW B Vol. 92 ( 10 ) 2015.9

Microscopic Theory of Tunneling Spectroscopy in Sr2RuO4

Yada Keiji, Golubov Alexander A., Tanaka Yukio, Kashiwaya Satoshi

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN Vol. 83 ( 7 ) 2014.7

Tunneling spectroscopy of topological superconductors

Kashiwaya Satoshi, Kashiwaya Hiromi, Saitoh Kohta, Mawatari Yasunori, Tanaka Yukio

PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES Vol. 55 page： 25 - 29 2014.1

Anomalous Josephson current in superconducting topological insulator

Yamakage Ai, Sato Masatoshi, Yada Keiji, Kashiwaya Satoshi, Tanaka Yukio

PHYSICAL REVIEW B Vol. 87 ( 10 ) 2013.3

High-Supercurrent-Density Contacts and Josephson Effect of Strontium Ruthenate

Saitoh Kohta, Kashiwaya Satoshi, Kashiwaya Hiromi, Koyanagi Masao, Mawatari Yasunori, Tanaka Yukio, Maeno Yoshiteru

APPLIED PHYSICS EXPRESS Vol. 5 ( 11 ) 2012.11

Local transport characteristics of break junction in Sr2RuO4 microbridge

Kambara H., Kashiwaya S., Kashiwaya H., Tanaka Y., Maeno Y.

PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS Vol. 471 ( 21-22 ) page： 708 - 710 2011.11

Tunneling Hamiltonian description of the atomic-scale 0-pi transition in superconductor/ferromagnetic-insulator junctions

Kawabata S., Tanaka Y., Golubov A. A., Vasenko A. S., Kashiwaya S., Asano Y.

PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS Vol. 471 ( 21-22 ) page： 1199 - 1201 2011.11

Edge States of Sr2RuO4 Detected by In-Plane Tunneling Spectroscopy

Kashiwaya Satoshi, Kashiwaya Hiromi, Kambara Hiroshi, Furuta Tsuyoshi, Yaguchi Hiroshi, Tanaka Yukio, Maeno Yoshiteru

PHYSICAL REVIEW LETTERS Vol. 107 ( 7 ) 2011.8

Fabrication and transport properties of Sr2RuO4 microdevices

Kashiwaya S., Kambara H., Kashiwaya H., Furuta T., Yaguchi H., Asano Y., Tanaka Y., Maeno Y.

PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS Vol. 470 page： S736 - S737 2010.12

Unconventional transport characteristics of p-wave superconducting junctions in Sr2RuO4-Ru eutectic system

Kambara H., Kashiwaya S., Yaguchi H., Asano Y., Tanaka Y., Maeno Y.

PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS Vol. 470 page： S685 - S687 2010.12

Thermally induced 0-pi phase transition in Josephson junctions through a ferromagnetic oxide film

Kawabata S., Asano Y., Golubov A. A., Tanaka Y., Kashiwaya S.

PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS Vol. 470 ( 20 ) page： 1496 - 1498 2010.11

DC Current Driven Critical Current Variation in Sr2RuO4-Ru Junction Proved by Local Transport Measurements

Kambara Hiroshi, Matsumoto Tetsuro, Kashiwaya Hiromi, Kashiwaya Satoshi, Yaguchi Hiroshi, Asano Yasuhiro, Tanaka Yukio, Maeno Yoshiteru

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN Vol. 79 ( 7 ) 2010.7

Josephson pi State in a Ferromagnetic Insulator

Kawabata Shiro, Asano Yasuhiro, Tanaka Yukio, Golubov Alexander A., Kashiwaya Satoshi

PHYSICAL REVIEW LETTERS Vol. 104 ( 11 ) 2010.3

Theory of Josephson transport through spintronics nano-structures

Kawabata Shiro, Asano Yasuhiro, Tanaka Yukio, Kashiwaya Satoshi

PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES Vol. 42 ( 4 ) page： 1010 - 1013 2010.2

Imaging of AC Magnetic Field by Multipulse Quantum Sensing Sequences and Multifrequency Resonance Reviewed

Onodera, Shunta, Ohkubo, Yoshikatsu, Azuma, Yusuke, Watanabe, Hideyuki, Kashiwaya, Satoshi, NOMURA, Shintaro

Extended Abstracts of the 2024 International Conference on Solid State Devices and Materials 2024 page： 819 - 820 2024.9

Proximity-Induced Superconducting States of Magnetically Doped 3D Topological Insulators with High Bulk Insulation Reviewed

Rikizo Yano, Hishiro T. Hirose, Kohei Tsumura, Shuhei Yamamoto , Masao Koyanagi , Manabu Kanou , Hiromi Kashiwaya , Takao Sasagawa and Satoshi Kashiwaya

Condens. Matter Vol. 4 ( 1 ) page： 9-1-9 2019.1

Authorship：Last author,　Corresponding author Language：English Publishing type：Research paper (scientific journal)

We studied magnetized topological insulator/superconductor junctions with the
expectation of unconventional superconductive states holding Majorana fermions induced by
superconductive proximity effects on the surface states of magnetized topological insulators (TIs),
attached by conventional superconductors. We introduced Fe-doped BiSbTe2Se as an ideal magnetic
TI and used the developed junction fabrication process to access the proximity-induced surface
superconducting states. The bulk single crystals of the Fe-doped TI showed excellent bulk-insulating
properties and ferromagnetism simultaneously at a low temperature. Meanwhile, the fabricated
junctions also showed an insulating behavior above 100 K, as well as metallic conduction at a low
temperature, which reflects bulk carrier freezing. In addition, we observed a proximity-induced gap
structure in the conductance spectra. These results indicate that the junctions using the established
materials and process are preferable to observe unconventional superconducting states which are
induced via the surface channels of the magnetized TI. We believe that the developed process can be
applied for the fabrication of complicated junctions and suites for braiding operations

DOI： https://doi.org/10.3390/condmat4010009

Extremely large magnetoresistance in a high-quality WTe2 grown by flux method

Tsumura K., Yano R., Kashiwaya H., Koyanagi M., Masubuchi S., Machida T., Namiki H., Sasagawa T., Kashiwaya S.

28TH INTERNATIONAL CONFERENCE ON LOW TEMPERATURE PHYSICS (LT28) Vol. 969 2018

Magnetization measurements of Sr2RuO4-Ru eutectic microplates using dc-SQUIDs

Nago Y., Sakuma D., Ishiguro R., Kashiwaya S., Nomura S., Kono K., Maeno Y., Takayanagi H.

28TH INTERNATIONAL CONFERENCE ON LOW TEMPERATURE PHYSICS (LT28) Vol. 969 2018

Investigation of the Vortex States of Sr2RuO4-Ru Eutectic Microplates Using DC-SQUIDs

Sakuma Daisuke, Nago Yusuke, Ishiguro Ryosuke, Kashiwaya Satoshi, Nomura Shintaro, Kono Kimitoshi, Maeno Yoshiteru, Takayanagi Hideaki

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN Vol. 86 ( 11 ) 2017.11

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Papers - KASHIWAYA Satoshi