Emergence of superconductivity in Th3P4-type Sn3Se4 and Ge3S4 under high pressure synthesized by diamond anvil cell with boron-doped diamond electrodes.
IF 6.6 3区 材料科学Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY
{"title":"Emergence of superconductivity in Th<sub>3</sub>P<sub>4</sub>-type Sn<sub>3</sub>Se<sub>4</sub> and Ge<sub>3</sub>S<sub>4</sub> under high pressure synthesized by diamond anvil cell with boron-doped diamond electrodes.","authors":"Ryo Matsumoto, Satoshi Nakano, Kensei Terashima, Toru Shinmei, Tetsuo Irifune, Motoharu Imai, Yoshihiko Takano","doi":"10.1080/14686996.2026.2705815","DOIUrl":null,"url":null,"abstract":"<p><p>High-pressure techniques provide a powerful approach for exploring superconducting materials by enabling structural modifications that significantly alter electronic and phonon properties. In this study, we investigate the emergence of superconductivity in Sn<sub>3</sub>Se<sub>4</sub> and Ge<sub>3</sub>S<sub>4</sub> with the Th<sub>3</sub>P<sub>4</sub>-type cubic structure using high-pressure synthesis and in situ electrical transport measurements in a diamond anvil cell equipped with boron-doped diamond electrodes. Both compounds exhibit superconductivity, with maximum transition temperature <i>T</i> <sub>c</sub> of 7.9 K at 8 GPa for Sn<sub>3</sub>Se<sub>4</sub> and 10.5 K at 11 GPa for Ge<sub>3</sub>S<sub>4</sub>. The behavior of the <i>T</i> <sub>c</sub> as a function of pressure and previously reported theoretical calculations, including related compounds, suggest a phonon-mediated BCS-type mechanism for observed superconductivity. These results expand the family of Th<sub>3</sub>P<sub>4</sub>-type superconductors and demonstrate the effectiveness of high-pressure techniques for discovering new superconducting phases.</p>","PeriodicalId":21588,"journal":{"name":"Science and Technology of Advanced Materials","volume":"27 1","pages":"2705815"},"PeriodicalIF":6.6000,"publicationDate":"2026-07-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13439773/pdf/","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Science and Technology of Advanced Materials","FirstCategoryId":"88","ListUrlMain":"https://doi.org/10.1080/14686996.2026.2705815","RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"2026/1/1 0:00:00","PubModel":"eCollection","JCR":"Q1","JCRName":"MATERIALS SCIENCE, MULTIDISCIPLINARY","Score":null,"Total":0}
引用次数: 0
Abstract
High-pressure techniques provide a powerful approach for exploring superconducting materials by enabling structural modifications that significantly alter electronic and phonon properties. In this study, we investigate the emergence of superconductivity in Sn3Se4 and Ge3S4 with the Th3P4-type cubic structure using high-pressure synthesis and in situ electrical transport measurements in a diamond anvil cell equipped with boron-doped diamond electrodes. Both compounds exhibit superconductivity, with maximum transition temperature Tc of 7.9 K at 8 GPa for Sn3Se4 and 10.5 K at 11 GPa for Ge3S4. The behavior of the Tc as a function of pressure and previously reported theoretical calculations, including related compounds, suggest a phonon-mediated BCS-type mechanism for observed superconductivity. These results expand the family of Th3P4-type superconductors and demonstrate the effectiveness of high-pressure techniques for discovering new superconducting phases.
期刊介绍：
Science and Technology of Advanced Materials (STAM) is a leading open access, international journal for outstanding research articles across all aspects of materials science. Our audience is the international community across the disciplines of materials science, physics, chemistry, biology as well as engineering.
The journal covers a broad spectrum of topics including functional and structural materials, synthesis and processing, theoretical analyses, characterization and properties of materials. Emphasis is placed on the interdisciplinary nature of materials science and issues at the forefront of the field, such as energy and environmental issues, as well as medical and bioengineering applications.
Of particular interest are research papers on the following topics:
Materials informatics and materials genomics
Materials for 3D printing and additive manufacturing
Nanostructured/nanoscale materials and nanodevices
Bio-inspired, biomedical, and biological materials; nanomedicine, and novel technologies for clinical and medical applications
Materials for energy and environment, next-generation photovoltaics, and green technologies
Advanced structural materials, materials for extreme conditions.
求助内容：
应助结果提醒方式：
京公网安备 11010802042870号
