Japanese

→→→ 2024/4/1：New members joined in Kashiwaya Lab! →→→ 2023/3/25：M2 and B4 students graduated Kashiwaya Lab. →→→ 2023/3/2：Mr Matsubara won the best presentor prize! →→→ 2023/11/2：Our recent r work has been published for Nature Communications! →→→ 2023/9/16-23：Students participated conferences held in 2023 autumn. →→→ 2023/4/1：New members joined in Kashiwaya Lab! →→→ 2022/12/15-17：M1 students participated the VPWJ2022. →→→ 2022/8/31：Lecturer Asaka moved to Fukui University of Technology. →→→ 2022/3/31：Asst. Prof. Nakahara left Kashiwaya Lab. →→→ 2022/3/25：M2 and B4 students graduated Kashiwaya Lab. →→→ 2021/7/21: Asst. Prof. Rikizo YANO won the MSL Award for Research (for Young Scientists). →→→ 2021/7/12: Success in Development of High-Resolution Electromagnetic Microscope.

Satoshi Kashiwaya Laboratory
Department of Applied Physics, Nagoya University
(Materials Physics in Nanoscale Systems, Soft and Solid Matter Physics)

Welcome to Kashiwaya-Lab HP!

Kashiwaya-lab has launched at Appl. 2018. We moved from AIST (The National Institute of Advanced Industrial Science and Technology: Tsukuba, Japan). Recently, we have updated this HP to inform our research and activity.
We focus on the "boundary" and "surface" of materials, which induce various fascinating physical phenomena, such as emerging unconventional superconductivity and unique, undiscovered elementary particles.
We are waiting for your contact and future collaborations!

Recent News

2024.4/1：New members joined in Kashiwaya Lab!
2024.3/25：M2 and B4 students graduated Kashiwaya Lab.
2024.3：Mr. Matsubara (M2) won the Excellent Presentation Award!
Mr. Naoki Matsubara was selected as the Excellent Presentation Award at the Master's Thesis Interim Review of Department of Applied Physics. Congratulation!
2023/11/2: Our recent r work has been published for Nature Communications!! Mr. Matstubara (M2), Mr. Nagasaka (OB), Mr. Tanda (OB), Mr. Ito (OB), and Mr. Saigusa (OB at Takenaka Lab) joined this project as their master thesis.
This work was collaborated with Prof. Okamoto (Dept. Appl. Phys.; present address is Tokyo Univ.), Prof. Takenaka ((Dept. Appl. Phys), Prof Yamakage (Dept. Phys.).

【Title】

Evidence of unconventional superconductivity on the surface of the nodal semimetal CaAg_1−xPd_xP

【Authors】

Rikizo Yano¹, Shota Nagasaka¹, Naoki Matsubara¹, Kazushige Saigusa¹, Tsuyoshi Tanda¹, Seiichiro Ito¹, Ai Yamakage², Yoshihiko Okamoto^1,3, Koshi Takenaka¹ & Satoshi Kashiwaya¹
¹ Department of Applied Physics, Nagoya University
² Department of Physics, Nagoya University
³ Present address: Institute for Solid State Physics, the University of Tokyo

【Authors in Japanese】：矢野力三, 長坂翔太, 松原直生、三枝一茂, 反田剛、伊藤誠一郎、竹中康司, 柏谷聡（名古屋大学大学院工学研究科）
山影相（名古屋大学大学院理学研究科）
岡本佳比古,（東京大学物性研）

【Journal】

Nature communications
【Date】

2023/Oct/26

【DOI】

https://doi.org/10.1038/s41467-023-42535-5

※※※ go to Paper page※※※

※※※ go to Press page (Japanese)※※※

※※※ Explanation is here (Japansese)※※※
2023/Sept: Students participated conferences held in 2023 autumn.
9/16-19 Mr. Matsubara(M2), Mr. Sakamori (M2), Prof. Taniguchi, and Asst. Prof. Yano joined 78th JPS conference @Sendai, Japan. 9/19-23 Mr. Teshigawara(D1) and Mr. Iwase(D1) joined JPSJ conference at Kumamoto, Japan.
2023/6/30：Mr. SAKAMORI(M2) has published his paper on Superconductor Science and Technology!

【Title】Theory of Josephson current on a lattice model of grain boundary in d-wave superconductors

【DOI】Takashi Sakamori, Satoshi Kashiwaya, Rikizo Yano, Yukio Tanaka, Takafumi Hatano and Keiji Yada,Superconductor Science and Technology (Supercond. Sci. Technol.), 36, 085011 (2023).

This work is colaborate with TANAKA Laboratory
※※※ Paper page is here※※※
2023/5/23：Proceedings @LT-29 written by students have been published!
Tsuyoshi TANDA(M2 when writing) Transport Properties of Magnetically doped Topological Insulator Fe-BiSbTe₂Se　※ Tanda's Paper page here※
Mitsuhiro TESHIGAWARA(D1 student) Evaluation of Magnetic Field Induced by Time-Reversal Symmetry Broken Superconductors ※ Teshigawara's Paper page here※
Naoki MATSUBARA(M2 student) Two-Band Model and Point Contact Spectroscopy of Nodal-Line Semimetal CaAg_0.9Pd_0.1P ※ Matsubara's Paper page here※
Takashi SAKAMORI(M2 student) Andreev Bound States and Doppler Shift in La_1.85Sr_0.15CuO₄/Au Junctions ※ Sakamori's Paper page here※
2023 April：New members joined in Kashiwaya Lab!
Two new M1 and four B4 students are welcomed in our laboratory.
2023 Jan 5: Welcome party for Lecturer Taniguchi!
We had welcome party for Lecturer Taniguchi! Some students love to cook, and they prepare the Japanese hot pod dishes and pizzas with special cares to COVID-19. We enjoyed the party and prayed for our great success in 2023.
2023 Jan：A Happy New Year! Lecturer Taniguchi has been joined to our laboratory at January 2023.
2022 Dec：We updated our HP!
2022 Dec 15-17：M1 students (Mr. Matsubara and Mr. Sakamori) participated the VPWJ2022.
They fascinated the audience, and, as a result, we received an encouraging e-mail message from one of professors. After the WS, we enjoyed “Shin-Yokohama Ramen Museum” in Yokohama.
2022 Aug-Sep：Sutudents attended and presented for JPS conference and JAPS conference.
9/12-15 Students presented their recent reserch results at 2022 Autumn Meeting of Physical Society of Jpan (JPS) held at Tokyo (Mr. Tanda, Mr, Matsubara, and Mr. Sakamori) and 9/20-23 The 83rd JSAP Autumn Meeting 2022 held at Sendai (Mr. Teshigawara).
2021/8/31：Lecturer Asaka moved to Fukui University of Technology.
Lecturer Aska moved to Fukui University of Technology. We hope future great success.
2022/Aug18-24：Students presented their reserch results at 29th International Conference on LOW TEMPERATURE PHYSICS (LT29)!
Four our students (Mr. Teshigawara, Mr. Tanda, Mr. Matsubara, and Mr. Sakamori) attended the international conference LT29. They also visited Hokkaido University located near the conference site. They enjoed cutting edge low temperature physics and noble sight of NATURE at hokkaido.
2022 April：New members joined in Kashiwaya Lab!
One new M1 and four B4 students are welcomed in our laboratory.
2022/3/31：Asst. Prof. Nakahara left Kashiwaya Lab.
Asst. Prof. Nakahara moved to a company manufacturing ultra-precision experimental equipment. We thank his honor activities and hope future great success.
2022/3/25：M2 and B4students graduated from Kashiwaya Lab.
We are proud of their high-impact activities and wish their future great jobs.
2022/2/2-4：Asst. Prof. Yano invited NF Tech forum 2022 Winter Online as a Invited Speaker at Special session.
He introduced the importance and recent development of material science regarding magnetic materials, electronics materials, future spintronics materials, superconductors, and topological materials.
Title：Material Science for next "common sense" materials ~From conventional semiconductors to cutting edge materials (superconductors and topological materials).
※※※ Detail web page (written by japanese only)※※※
2021/7/21: Rikizo YANO won the prize
Asst. Prof. Rikizo YANO was awarded the MSL Award for Research (for Young Scientists).Reference Link
2021/7/12: Success in Development of High-Resolution Electromagnetic Microscope
In this study, we focused on the diamond nitrogen-vacancy (NV) center as a material for electromagnetic wave imaging, and irradiated it with a microwave pulse sequence for spin locking. This is the first time that electromagnetic wave imaging with high spatial resolution has been successfully achieved. The spatial resolution of electromagnetic wave imaging is determined by the resolution of the wide-field optical microscope. The spatial resolution of conventional methods using micro-antennas and electromagnetic wave sensor arrays was on the order of millimeters (mm), but this research has achieved a spatial resolution on the order of micrometers (µm), an improvement of three orders of magnitude. The electromagnetic wave imaging technology is expected to contribute to the visualization of electromagnetic wave intensity and dielectric constant from high-density high-frequency devices and circuits in high-speed wireless communication bands such as 5G and 6G, where inspection technology with high spatial resolution will be required.

<<< Published papers >>>
S. Nomura, K. Kaida, H. Watanabe and S. Kashiwaya, “Near-field radio-frequency imaging by spin-locking with a nitrogen-vacancy spin sensor”, J. App. Phys., Published online: 9 July 2021, DOI: 10.1063/5.0052161.
(This paper was selected as a “Featured Article” by the editors of the journal)
2021/4/15: Shunya KIHARA won the prize
Mr. Shunya KIHARA was selected as the Excellent Presentation Award Chosen by Professors at the Master's Thesis Interim Review of Department of Applied Physics.