Article
Physics, Applied
Michiyasu Mori, Sadamichi Maekawa
Summary: The study investigates a superconducting quantum interference device (SQUID) with 0- and pi-Josephson junctions (JJs), known as pi-SQUID, using the resistively shunted junction model. It demonstrates that the pi-SQUID exhibits half-integer Shapiro steps (SS) under microwave irradiation, making it a potential pi-qubit with spontaneous loop currents. The equivalence of 0- and pi-JJs is crucial for achieving the half-integer SS and realizing the pi-qubit.
APPLIED PHYSICS EXPRESS
(2021)
Review
Chemistry, Multidisciplinary
Pablo Orus, Fabian Sigloch, Soraya Sangiao, Jose Maria De Teresa
Summary: Superconductivity has been a fascinating and important field of study in physics and materials science since its discovery in 1911. Nanofabrication techniques using focused ion/electron beam induced deposition can downsize superconducting materials to the nanoscale, allowing for targeted and highly-flexible nanopatterning. Tungsten, niobium, molybdenum, carbon, and lead have been identified as the most notable superconducting materials used in functional devices.
Article
Chemistry, Inorganic & Nuclear
Pablo Orus, Fabian Sigloch, Soraya Sangiao, Jose Maria De Teresa
Summary: Ga+ Focused Ion Beam Induced Deposition (FIBID) is a nanopatterning technique that utilizes a focused beam of Ga+ ions to locally induce the decomposition of a gaseous precursor material. By stacking individual patterns, growth along the vertical direction can be achieved, resulting in nanopillars with heights up to 10 μm and potential applications in the design of 3D superconducting devices.
JOURNAL OF SOLID STATE CHEMISTRY
(2022)
Article
Materials Science, Multidisciplinary
Zhiwei Guo, Yiran Jian, Xian Wu, Fusheng Deng, Lijuan Dong, Hong Chen
Summary: The recent advancements in linear-crossing metamaterials (LCMMs) have attracted significant attention due to their ability to control and enhance light-matter interactions, such as negative refraction, filters, and super-lenses, through novel linear dispersion. However, the limited working frequency range remains a major constraint for LCMMs. In this study, we propose two methods to realize multiple linear-crossing metamaterials (MLCMMs) and demonstrate their unique beam splitting and directional refraction properties at different frequencies. This research not only provides a new platform for fundamental LCMM studies but also facilitates broadband applications.
FRONTIERS IN MATERIALS
(2022)
Article
Physics, Multidisciplinary
Ziwen Chen, Yulong Li, Rui Zhu, Jun Xu, Tiequan Xu, Dali Yin, Xinwei Cai, Yue Wang, Jianming Lu, Yan Zhang, Ping Ma
Summary: As a newly developed method, focused helium ion beam offers the advantage of producing reliable and reproducible Josephson junctions. In this study, Josephson junctions were fabricated on 50 nm YBa2Cu3O7 - delta (YBCO) thin films using a focused helium ion beam. The experiment showed that the junction barrier can be modulated by the ion dose, and within a certain dose range, the junctions exhibit superconductor-normal conductor-superconductor characteristics. The measurement results demonstrate the high reproducibility of junction fabrication using a focused helium ion beam and suggest the possibility of commercial devices based on this nanotechnology operating at liquid nitrogen temperatures.
CHINESE PHYSICS LETTERS
(2022)
Article
Physics, Applied
Lior Shani, Avital Fried, Yafit Fleger, Olga Girshevitz, Amos Sharoni, Yosef Yeshurun
Summary: Recent advances in focused ion beam (FIB) technology have shown that using accelerated helium or neon ions instead of gallium for maskless fabrication of superconducting nanocomponents can significantly affect the superconducting transition temperature. The damage induced by helium, neon, and gallium ions was studied, and it was found that the transition temperature decreased when using neon and gallium ions. Simulations of the ions in matter showed that the lateral distribution and sputtering rate were greater for neon and gallium ions compared to helium, which correlates with the changes in the electrical properties of the nanowire.
JOURNAL OF SUPERCONDUCTIVITY AND NOVEL MAGNETISM
(2022)
Article
Materials Science, Multidisciplinary
Valentin Ahrens, Simon Mendisch, Waldemar Kaiser, Martina Kiechle, Stephan Breitkreutz-von Gamm, Markus Becherer
Summary: This study demonstrates a method to control the generation of skyrmionic bubble like structures (SBSs) in magnetic thin films using focused ion beam irradiation to alter the magnetic properties. By creating potential barriers in irradiated regions, bubbles are stabilized at room temperature and zero field. The research provides a platform to investigate the behavior of SBSs in a confined state and explore the possibilities of controlled field- and current-driven motion.
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
(2021)
Proceedings Paper
Engineering, Electrical & Electronic
Tian Han, Yan Xing, Chen Fang, Zaifa Zhou, Xiaoli Qiu
Summary: This paper presents a method for accurately determining the gray scale value of the bitmap and applies it to the production of modified bitmaps. Experimental results show that this method can significantly improve the shape accuracy of microstructures.
2021 34TH IEEE INTERNATIONAL CONFERENCE ON MICRO ELECTRO MECHANICAL SYSTEMS (MEMS 2021)
(2021)
Article
Physics, Applied
Eugene B. Gordon, Alexey V. Bezryadin, Alexander V. Karabulin, Vladimir I. Matyushenko, Igor I. Khodos
PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS
(2015)
Article
Multidisciplinary Sciences
Andrew Murphy, Alexander Semenov, Alexander Korneev, Yulia Korneeva, Gregory Gol'tsman, Alexey Bezryadin
SCIENTIFIC REPORTS
(2015)
Article
Multidisciplinary Sciences
A. Belkin, A. Hubler, A. Bezryadin
SCIENTIFIC REPORTS
(2015)
Article
Physics, Multidisciplinary
A. Belkin, M. Belkin, V. Vakaryuk, S. Khlebnikov, A. Bezryadin
Article
Physics, Multidisciplinary
Alexey Bezryadin, Erik Kountz
Article
Nanoscience & Nanotechnology
K. Yu Arutyunov, A. Ramos-Alvarez, A. V. Semenov, Yu P. Korneeva, P. P. An, A. A. Korneev, A. Murphy, A. Bezryadin, G. N. Gol'tsman
Article
Nanoscience & Nanotechnology
A. Bezryadin, A. Belkin, E. Ilin, M. Pak, Eugene V. Colla, A. Hubler
Article
Physics, Multidisciplinary
Andrew Murphy, Dmitri V. Averin, Alexey Bezryadin
NEW JOURNAL OF PHYSICS
(2017)
Article
Multidisciplinary Sciences
A. Belkin, A. Bezryadin, L. Hendren, A. Hubler
SCIENTIFIC REPORTS
(2017)
Article
Mathematics, Interdisciplinary Applications
Alfred Hubler, Andrey Belkin, Alexey Bezryadin
Article
Materials Science, Multidisciplinary
John Draskovic, Thomas R. Lemberger, Brian Peters, Fengyuan Yang, Jaseung Ku, Alexey Bezryadin, Song Wang
Article
Physics, Applied
Eduard Ilin, Yaofa Li, Eugene Colla, Kenneth T. Christensen, Muhammad Sahimi, Maxim Marchevsky, Scott M. Frailey, Alexey Bezryadin
JOURNAL OF APPLIED PHYSICS
(2020)
Article
Physics, Applied
Eduard Ilin, Maxim Marchevsky, Irina Burkova, Michael Pak, Alexey Bezryadin
PHYSICAL REVIEW APPLIED
(2020)
Article
Materials Science, Multidisciplinary
A. Murphy, A. Bezryadin
Article
Materials Science, Multidisciplinary
Jaseung Ku, Zack Yoscovits, Alex Levchenko, James Eckstein, Alexey Bezryadin