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The Review of High Pressure Science and Technology
Online ISSN : 1348-1940
Print ISSN : 0917-639X
ISSN-L : 0917-639X
Current issue
Displaying 1-10 of 10 articles from this issue
Foreword
  • Toru INOUE
    Article type: Foreword
    2023 Volume 33 Issue 1 Pages 1
    Published: March 01, 2023
    Released on J-STAGE: December 27, 2023
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Reviews - Research of New Materials and Features Using High-Pressure Techniques -
  • Ikuya YAMADA, Yuichi OKAZAKI, Tasuku UCHIMURA, Akihiko TAKAMATSU, Hide ...
    Article type: Review
    2023 Volume 33 Issue 1 Pages 3-9
    Published: March 01, 2023
    Released on J-STAGE: December 27, 2023
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    Quadruple perovskite oxides AA'3B4O12, which can be synthesized under high pressures above several GPa, demonstrate multifunctional properties derived from their structural and electronic features. In this article, we review the recent progress in the intriguing functions of the quadruple perovskite series. RCu3Fe4O12 (R = La, Pr, Nd, Sm, Gd) exhibit robust thermal-energy storage properties. CeMn3Cr4O12 displays metamagnetic behavior which is attributed to the 4f magnetic moments of Ce3+ ions. thermal storage. Systematic comparisons between simple and quadruple perovskite oxides demonstrate that structural feature of the quadruple perovskite serves to enhance the catalytic activity for oxygen evolution reaction.

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  • Chihiro SEKINE
    Article type: Review
    2023 Volume 33 Issue 1 Pages 10-18
    Published: March 01, 2023
    Released on J-STAGE: December 27, 2023
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    This article reviews developments of skutterudite-type thermoelectric (TE) materials by high pressure synthesis using multi-anvil apparatus. TE materials have been utilized in power generation devices because they can convert thermal energy directly into electrical energy. TE power generation using waste heat has attracted much attention as one of the new energy resources. CoSb3-based skutterudite compounds have attracted considerable attention as one of the best candidates of TE materials. We focused on reduction of lattice thermal conductivity in skutterudite compounds to improve the TE performance. We demonstrate the possibility of developing high-performance TE materials by preparing new compounds using high-pressure synthesis and pressure-induced reactions.

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  • Akira IYO
    Article type: Review
    2023 Volume 33 Issue 1 Pages 19-25
    Published: March 01, 2023
    Released on J-STAGE: December 27, 2023
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    The development of new superconductors (SCs) is important not only for their application but also for their potential to contribute to the progress of solid-state physics and materials science. In this article, we describe an approach to efficiently search for new SCs utilizing a combinatorial chemistry method. The method consists of preparation of bulk samples containing numerous various compounds and an effective screening method to detect new SCs in the bulk sample. We will show the effectiveness of the bulk sample preparation using high-pressure synthesis method and examples of new SCs discovered by this combinatorial method.

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  • Ken NIWA, Shuto ASANO, Chung-Ching CHANG, Takuya SASAKI, Masashi HASEG ...
    Article type: Review
    2023 Volume 33 Issue 1 Pages 26-33
    Published: March 01, 2023
    Released on J-STAGE: December 27, 2023
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    The recent development of high-pressure experimental techniques combined with advanced characterization and analytical methods allows us to reveal the crystal chemistry of the transition metal-nitrogen binary compounds up to the megabar pressure regime. Novel early transition metal-nitrogen compounds, VN2, Nb2N3, and MoC-type WN0.6, have been synthesized by using a laser-heated diamond-anvil cell or DIA-type high-pressure apparatus. In addition to conventional high-pressure in-situ X-ray diffraction measurements, the low-temperature thermal expansion behavior and the valance state of transition metal ions of these newly synthesized compounds were revealed. In this article, the details of our experiments, and recent progress in high-pressure synthesis and crystal chemistry of transition metal nitrogen binary compounds are reviewed.

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  • Motoharu IMAI
    Article type: Review
    2023 Volume 33 Issue 1 Pages 34-43
    Published: March 01, 2023
    Released on J-STAGE: December 27, 2023
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    In this article, the author discusses what high-pressure synthesis do for new functional materials search, based on his experience on synthesis of silicides, Si clathrates, and filled skutterudites. The materials synthesized at high pressures are denser than the materials synthesized at the ambient pressure. The author used high-pressure synthesis to (1) synthesize the compounds with crystal structures predictable from structural sequences in pressure-induced structural phase transitions and elemental substitutions in similar materials, (2) synthesize the intercalation-type host-guest compounds those have the similar crystal structure to existing Zintl-phase ones, (3) synthesize Zintl-phase tetrides that have more anion contents than those synthesized at ambient pressure, and (4) increase solid solution limits in compounds whose volume is increased by elemental substitutions.

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Obituary
  • Yukihiro YOSHIMURA
    Article type: Obituary
    2023 Volume 33 Issue 1 Pages 44-45
    Published: March 01, 2023
    Released on J-STAGE: December 27, 2023
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Laboratory News
Salon
  • Robert Cooper Liebermann
    Article type: Salon
    2023 Volume 33 Issue 1 Pages 48-53
    Published: March 01, 2023
    Released on J-STAGE: December 27, 2023
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    Over the past six decades, I have maintained research collaborations with Japanese scientists while pursuing an academic career focusing on scientific investigations of the physical properties of minerals at high pressures and temperatures. I first visited Japan in 1971; in the ensuing half century, I have paid another dozen visits to research laboratories in Tokyo, Kyoto, Osaka, Nagoya, Tsukuba, Sendai, Sapporo, Matsuyama, Hiroshima, and Misasa. The objective of this paper is to relate this history.

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  • Hajime YAMAMOTO
    Article type: Salon
    2023 Volume 33 Issue 1 Pages 54-55
    Published: March 01, 2023
    Released on J-STAGE: December 27, 2023
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