Biaxially Textured <math xmlns="http://www.w3.org/1998/Math/MathML" display="inline" overflow="scroll"><msub><mi>YBa</mi><mn>2</mn></msub><msub><mi>Cu</mi><mn>3</mn></msub><msub><mi mathvariant="normal">O</mi><mrow><mn>7</mn><mo>−</mo><mi>x</mi></mrow></msub></math> Microwave Cavity in a High Magnetic Field for a Dark-Matter Axion Search

Danho Ahn; Ohjoon Kwon; Woohyun Chung; Wonjun Jang; Doyu Lee; Jhinhwan Lee; Sung Woo Youn; HeeSu Byun; Dojun Youm; Yannis K. Semertzidis

doi:10.1103/PhysRevApplied.17.L061005

Letter

Biaxially Textured ${YBa}_{2} {Cu}_{3} O_{7 - x}$ Microwave Cavity in a High Magnetic Field for a Dark-Matter Axion Search

Danho Ahn ^1,2, Ohjoon Kwon², Woohyun Chung ^2,*, Wonjun Jang^3,†, Doyu Lee^2,‡, Jhinhwan Lee⁴, Sung Woo Youn ², HeeSu Byun², Dojun Youm¹ et al.

Yannis K. Semertzidis^1,2

¹Department of Physics, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea
²Center for Axion and Precision Physics Research, Institute for Basic Science, Daejeon 34051, Republic of Korea
³Center for Quantum Nanoscience, Institute for Basic Science, Seoul 33760, Republic of Korea
⁴Center for Artificial Low Dimensional Electronic Systems, Institute for Basic Science, Pohang 37673, Republic of Korea

^*gnuhcw@ibs.re.kr
^†Present address: Samsung Advanced Institute of Technology, Suwon 16678, Republic of Korea.
^‡Present address: Samsung Electronics, Hwaseong 18448, Republic of Korea.

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Phys. Rev. Applied 17, L061005 – Published 28 June, 2022

DOI: https://doi.org/10.1103/PhysRevApplied.17.L061005

Abstract

A high-quality $(Q)$ -factor microwave resonator in the presence of a strong magnetic field can have a wide range of applications, such as in axion dark matter searches where the two aspects must coexist to enhance the experimental sensitivity. We introduce a polygon-shaped cavity design with biaxially textured ${YBa}_{2} {Cu}_{3} O_{7 - x}$ superconducting tapes covering the entire inner wall. Using a 12-sided polygon cavity, we obtain substantially improved $Q$ factors of the 6.9-GHz ${TM}_{010}$ mode at 4 K with respect to a copper cavity and observe no considerable degradation in the presence of magnetic fields up to 8 T.

Physical Review Applied

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Biaxially Textured ${YBa}_{2} {Cu}_{3} O_{7 - x}$ Microwave Cavity in a High Magnetic Field for a Dark-Matter Axion Search

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Biaxially Textured YBa2Cu3O7−x Microwave Cavity in a High Magnetic Field for a Dark-Matter Axion Search

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Biaxially Textured ${YBa}_{2} {Cu}_{3} O_{7 - x}$ Microwave Cavity in a High Magnetic Field for a Dark-Matter Axion Search