2021 Fiscal Year Annual Research Report
Microwave Spectroscopy of Hybrid Topological Systems
| Project/Area Number |
19H02548
|
|---|
| Research Institution | Institute of Physical and Chemical Research |
|---|
Principal Investigator |
ディーコン ラッセル 国立研究開発法人理化学研究所, 開拓研究本部, 専任研究員 (40552443)
|
|---|
| Project Period (FY) |
2019-04-01 – 2022-03-31
|
| Keywords | Resonator / Andreev Bound States / Josephson Junction / Topological |
|---|
| Outline of Annual Research Achievements |
We perform single tone measurements on InAs nanowires in moderate magnetic fields (~100mT). We have developed simulations of the system based on tight binding and master equation approach to interpret the results. Despite this success two-tone measurements remain difficult in applied fields as high power microwaves disturb the stability of the phase due to vortex movement. A possible solution maybe flux cooling of the system and toward this end we have studied lower Tc Tantalum Nitride resonators. We characterized our devices measured in FY2020 and summarized the flip-chip spectroscopy(ArXiv::2112.08983). We studied Te-doped nanowires to be used as high critical current shunts in asymmetric SQUID for future phase bias spectroscopy (Perla et al. Phys, Rev. Mat. 6, 024602 (2022)).
|
| Research Progress Status |
令和3年度が最終年度であるため、記入しない。
|
| Strategy for Future Research Activity |
令和3年度が最終年度であるため、記入しない。
|
Research Products
(3 results)
-
[Journal Article] Te-doping selective-area grown InAs nanowires for superconducting hybrid devices2022
Author(s)
Pujitha Perla, Anton Faustmann, Sebastian Kolling, Patrick Zellekens, Russell Deacon, H. Aruni Fonseka, Jonas Kolzer, Yuki Sato, Ana M. Sanchez, Oussama Moutanabbir, Koji Ishibashi, Detlev Grutzmacher, Mihail Ion Lepsa, and Thomas Schaepers
-
Journal Title
Physical Review Materials
Volume: 6
Pages: 024602-1-5
DOI
Peer Reviewed / Open Access / Int'l Joint Research
-
-
