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논문검색

Terahertz time domain spectroscopy of GdBCO superconducting thin films

원문정보

Gangseon Ji, Woongkyu Park, Hyoung-Taek Lee, Chang-Yun Song, Choongwon Seo, Minjo Park, Byeongwon Kang, Kyungwan Kim, Dai-Sik Kim, Hyeong-Ryeol Park

한국초전도저온학회 (구 한국초전도저온공학회) 한국초전도·저온논문지 (구 한국초전도저온공학회논문지) Vol.21 No.1 2019.03 pp.15-17
피인용수 : 0건 (자료제공 : 네이버학술정보)

초록

영어

We present terahertz optical properties of GdBa2Cu3O7-x (GdBCO) superconducting thin films. GdBCO films with a thickness of about 105 nm were grown on a LaAlO3 (LAO) single crystal substrate using a conventional pulsed laser deposition (PLD) technique. Using an Ar ion milling system, the thickness of the GdBCO film was reduced to 58 nm, and its surface was also smoothened. Terahertz (THz) transmission spectra through two different GdBCO films are measured over the range between 0.2 and 1.5 THz using THz time domain spectroscopy. Interestingly, the THz transmission of the thinner GdBCO film has been increased to six times larger than that of the thicker one, while the thinner film is still maintaining its superconducting property at below 90 K.

목차

Abstract
1. INTRODUCTION
2. EXPERIMENTAL METHODS
2.1. THz time domain spectroscopy
2.2. Sample fabrications
3. RESULTS AND DISCUSSIONS
ACKNOWLEDGMENT
REFERENCES

키워드

저자정보

  • Gangseon Ji Department of Physics, Chungbuk National University, Cheongju, Republic of Korea
  • Woongkyu Park Department of Physics and Astronomy and Center for Atom Scale Electromagnetism, Seoul National University, Seoul, Republic of Korea
  • Hyoung-Taek Lee Department of Physics, Chungbuk National University, Cheongju, Republic of Korea
  • Chang-Yun Song Department of Physics, Chungbuk National University, Cheongju, Republic of Korea
  • Choongwon Seo Department of Physics, Chungbuk National University, Cheongju, Republic of Korea
  • Minjo Park Department of Physics, Chungbuk National University, Cheongju, Republic of Korea
  • Byeongwon Kang Department of Physics, Chungbuk National University, Cheongju, Republic of Korea
  • Kyungwan Kim Department of Physics, Chungbuk National University, Cheongju, Republic of Korea
  • Dai-Sik Kim Department of Physics and Astronomy and Center for Atom Scale Electromagnetism, Seoul National University, Seoul, Republic of Korea
  • Hyeong-Ryeol Park Department of Physics, Chungbuk National University, Cheongju, Republic of Korea

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자료제공 : 네이버학술정보

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