서브메뉴
검색
Developing Josephson Junction Microwave Spectroscopy as a Modality Compatible With Scanned Probe Microscopy at LHe Temperatures
Developing Josephson Junction Microwave Spectroscopy as a Modality Compatible With Scanned Probe Microscopy at LHe Temperatures
Detailed Information
- 자료유형
- 학위논문 서양
- 최종처리일시
- 20260202103704
- ISBN
- 9798283478944
- DDC
- 530
- 서명/저자
- Developing Josephson Junction Microwave Spectroscopy as a Modality Compatible With Scanned Probe Microscopy at LHe Temperatures
- 발행사항
- [Sl] : The University of Wisconsin - Madison, 2025
- 발행사항
- Ann Arbor : ProQuest Dissertations & Theses, 2025
- 형태사항
- 159 p
- 주기사항
- Source: Dissertations Abstracts International, Volume: 86-12, Section: B.
- 주기사항
- Advisor: Brar, Victor.
- 학위논문주기
- Thesis (Ph.D.)--The University of Wisconsin - Madison, 2025.
- 초록/해제
- 요약Developing new diagnostic tools to understand superconducting surface impurities is crucial for the future of quantum superconducting circuity as well as probing new emergent states in condensed matter. Josephson junction spectroscopy (JJS) in a scanned geometry offers a way to probe defects in superconductors directly, while also correlating their electronic and spatial properties. In this work we show advances towards implementing JJS in a scanning tunneling microscope (STM), where the Josephson junction is created between the superconducting tip and superconducting sample. We first present a way to perform this measurement in an STM by creating a new type of tip that leverages the HF filtering properties of a large tip-sample capacitance design. To demonstrate the benefit of this approach, we then show how a large cross junction capacitance improves performance at elevated temperatures using fabricated Nb-based Josephson junction devices. We also discuss the development of iron selenide as a promising superconducting surface on which to implement this technique. Lastly, we present results of our high capacitance STM tip showing its ability to decrease thermal noise and P(E)-broadening and discuss future possibilities of this tool.
- 일반주제명
- Physics
- 일반주제명
- Applied physics
- 일반주제명
- Quantum physics
- 키워드
- Iron selenide
- 기타저자
- The University of Wisconsin - Madison Physics
- 기본자료저록
- Dissertations Abstracts International. 86-12B.
- 전자적 위치 및 접속
- 로그인 후 원문을 볼 수 있습니다.
MARC
008260126s2025 us c eng d■001000017358246
■00520260202103704
■006m o d
■007cr#unu||||||||
■020 ▼a9798283478944
■035 ▼a(MiAaPQ)AAI32113409
■040 ▼aMiAaPQ▼cMiAaPQ
■0820 ▼a530
■1001 ▼aFortman, Margaret.
■24510▼aDeveloping Josephson Junction Microwave Spectroscopy as a Modality Compatible With Scanned Probe Microscopy at LHe Temperatures
■260 ▼a[Sl]▼bThe University of Wisconsin - Madison▼c2025
■260 1▼aAnn Arbor▼bProQuest Dissertations & Theses▼c2025
■300 ▼a159 p
■500 ▼aSource: Dissertations Abstracts International, Volume: 86-12, Section: B.
■500 ▼aAdvisor: Brar, Victor.
■5021 ▼aThesis (Ph.D.)--The University of Wisconsin - Madison, 2025.
■520 ▼aDeveloping new diagnostic tools to understand superconducting surface impurities is crucial for the future of quantum superconducting circuity as well as probing new emergent states in condensed matter. Josephson junction spectroscopy (JJS) in a scanned geometry offers a way to probe defects in superconductors directly, while also correlating their electronic and spatial properties. In this work we show advances towards implementing JJS in a scanning tunneling microscope (STM), where the Josephson junction is created between the superconducting tip and superconducting sample. We first present a way to perform this measurement in an STM by creating a new type of tip that leverages the HF filtering properties of a large tip-sample capacitance design. To demonstrate the benefit of this approach, we then show how a large cross junction capacitance improves performance at elevated temperatures using fabricated Nb-based Josephson junction devices. We also discuss the development of iron selenide as a promising superconducting surface on which to implement this technique. Lastly, we present results of our high capacitance STM tip showing its ability to decrease thermal noise and P(E)-broadening and discuss future possibilities of this tool.
■590 ▼aSchool code: 0262.
■650 4▼aPhysics
■650 4▼aApplied physics
■650 4▼aQuantum physics
■653 ▼aJosephson junction spectroscopy
■653 ▼aScanning tunneling microscope
■653 ▼aIron selenide
■690 ▼a0605
■690 ▼a0599
■690 ▼a0215
■71020▼aThe University of Wisconsin - Madison▼bPhysics.
■7730 ▼tDissertations Abstracts International▼g86-12B.
■790 ▼a0262
■791 ▼aPh.D.
■792 ▼a2025
■793 ▼aEnglish
■85640▼uhttp://www.riss.kr/pdu/ddodLink.do?id=T17358246▼nKERIS▼z이 자료의 원문은 한국교육학술정보원에서 제공합니다.
Preview
Export
ChatGPT Discussion
AI Recommended Related Books
Подробнее информация.
- Бронирование
- не существует
- моя папка
- Первый запрос зрения
- Non-Book Loan Application
- Nighttime Book Loan Application
Available after logging in.


