AAPPS bulletin

February 2022Vol 32

Research and Review
  • β-Ga2O3 material properties, growth technologies, and devices: a review

    Masataka Higashiwaki

    Abstract Rapid progress in β-gallium oxide (β-Ga2O3) material and device technologies has been made in this decade, and its superior material properties based on the very large bandgap of over 4.5 eV have been attracting much attention. β-Ga2O3 appears particularly promising for power switching device applications because of its extremely large breakdown electric field and availability of large-diameter, high-quality wafers manufactured from melt-grown bulk single crystals. In this review, afte

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  • Tuning the electronic states and superconductivity in alkali fulleride films

    Ming-Qiang Ren, Shu-Ze Wang, Sha Han, Can-Li Song, Xu-Cun Ma & Qi-Kun Xue

    Abstract The successful preparation of superconducting alkali fulleride (AxC60, A = K, Rb, Cs) films using state-of-the-art molecular beam epitaxy overcomes the disadvantages of the air-sensitivity and phase separation in bulk AxC60, enabling for the first time a direct investigation of the superconductivity in alkali fullerides on the molecular scale. In this paper, we briefly review recent cryogenic scanning tunneling microscopy results of the structural, electronic, and superconducting prope

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Research Highlights
  • The Noncommutative Values of Quantum Observables: A New Perspective on Quantum Physics

    Otto C.W. Kong

    The Noncommutative Values of Quantum Observables: A New Perspective on Quantum Physics Otto C.W. Kong (National Central University) ABSTRACT The article gives an introductory summary of our recent results from the perspective of the new conceptual notion of noncommutative values of quantum observables, where basic quantum mechanics is seen a theory of particle dynamics that is intrinsically noncommutative. Real numbers as an algebra is really an abstract mathematical model for the description o

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  • Phase Diagram for Infinite Layer Nickel Superconductors

    Ariando

    Phase Diagram for Infinite Layer Nickel Superconductors Ariando NUS physicists have developed a method to induce the transition of a rare-earth nickelate from their native perovskite form to infinite-layer structures. This allowed them to build a complete phase diagram of this nickelate superconductor. A superconductor is a material system that can conduct electrical current with zero resistance when it becomes colder than a "critical temperature", Known as the superconducting transition temper

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News and Views
  • Celebrating the Works of the Founding President of AAPPS, Prof. Chen-Ning Yang

    Jinge Sun

    Celebrating the Works of the Founding President of AAPPS, Prof. Chen-Ning Yang Jinge Sun From September 22 to 23, 2021, a seminar on Prof. Chen-Ning Yang's academic works was held at Tsinghua University. The seminar was co-hosted by Tsinghua University, the Chinese Physical Society and the Chinese University of Hong Kong. It was held both in-person and online, and the number of participants attending the webcast peaked at 100,000. At the symposium, "Celebrating Mr. Yang's 100th Birthday", held

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  • Prof. Syukuro Manabe and Climate Research

    Yukio Masumoto

    Prof. Syukuro Manabe and Climate Research Yukio Masumoto He is like a child full of curiosity. With all due respect to Prof. Manabe as a senior leader of our research field, this is the impression I had when I first met him, having known him only through his papers for a long time. I am sure many people will agree with me. However, it is impossible to avoid Prof. Manabe's papers when we try to study how the Earth's climate condition, under a coupled atmosphere-ocean-land system, is determined a

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  • 2021 Nishina Memorial Prize

    Nishina Memorial Foundation

    2021 Nishina Memorial Prize Nishina Memorial Foundation (1) Dr. Takahisa Arima and Dr. Tsuyoshi Kimura "Discovery and exploration of spin-induced multiferroics" Dr. Takahisa Arima Professor, Graduate School of Engineering, University of Tokyo, concurrently appointed as Team Leader, Strong Correlation Quantum Structure Research Team, RIKEN Center for Emergent Matter Science Dr. Tsuyoshi Kimura Professor, Graduate School of Engineering, University of Tokyo Magnetism and dielectricity are among th

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  • AAPPS-DACG Workshop Report

    Bogeun Gwak & Stephen Appleby

    AAPPS-DACG Workshop Report Bogeun Gwak and Stephen Appleby The Division of Astrophysics, Cosmology and Gravitation (DACG) of the Association of Asia Pacific Physical Societies (AAPPS) organized a workshop on astrophysics, cosmology and gravitation over the period 4th - 8th October, 2021. Due to the ongoing coronavirus pandemic, the workshop was the second consecutive DACG meeting to be held online. The global situation has created a unique challenge in keeping the Asia Pacific (AP) scientific c

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  • The Physical Society located in Taipei - Recent Activities

    PS Taipei

    The Physical Society located in Taipei - Recent Activities PS Taipei Our society joined AAPPS as The Physical Society located in Taipei. Our society continues to grow - we have around 1,800 members consisting of 45% of faculties and 55% of students, in 2020, which is more than doubled than in 2001. The annual meeting is the most important event for our society. It is also one of largest academic meetings in Taiwan. It provides a unique platform for physicists from Taiwan and the rest of the wor

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  • AAPPS-APCTP CN Yang Award 2021

    FU-JEN KAO

    AAPPS-APCTP CN Yang Award 2021 FU-JEN KAO (The Chair of the CN Yang Award Committee) We are very pleased to announce the three outstanding and prospective young scholars who are receiving the 2021 AAPPS-APCTP CN Yang Award (CN Yang Award). Over the years, the number of candidates has been increasing and the selection process of the CN Yang Award has become more structured, reflecting the increasing capabilities of the Association of Asian Pacific Physical Societies (AAPPS) and the academic vibr

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  • The Work Behind the Scenes for the First Ever Online Event of SSDM2020

    Keisuke Ohdaira

    The Work Behind the Scenes for the First Ever Online Event of SSDM2020 Keisuke Ohdaira (Japan Advanced Institute of Science and Technology) * THE ORIGINAL VERSION OF THIS ARTICLE WAS PUBLISHED IN OYO BUTURI 90(4)249-252 (2021). The International Conference on Solid State Devices and Materials (SSDM) is an academic conference with a history that spans more than 50 years. SSDM has significantly contributed to the Japanese semiconductor industry. In 2020, SSDM was supposed to be held in the Hokuri

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  • Citation for the 2021 (the 9th) Nishina Asia Award

    Nishina Memorial Foundation

    Citation for the 2021 (the 9th) Nishina Asia Award Nishina Memorial Foundation YAO, Wang (Chair Professor, Department of Physics, The University of Hong Kong, Hong Kong SAR, China) For his pioneering contributions to valleytronics in two-dimensional semiconductors and van der Waals heterostructures Realization of relativistic "Dirac fermions" in two-dimensional materials such as graphene is not only interesting from cross-disciplinary interest between condensed matter and high-energy physics, b

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