孙建平

主要研究方向


主要从事极端条件下新型功能材料和奇异物性探索,包括非常规超导体、磁性材料以及拓扑电子材料体系等。

过去的主要工作及获得的成果


部分代表性工作包括:(1)参与搭建了国内首套能提供良好静水压环境的立方六面砧高压测量装置,其可实现15 GPa静水压、1.5 K低温和9T磁场的综合极端测试条件,并基于此拓展了高压下的核磁共振测试、高压介电常数以及高压下固体电解质门电压调控(专利:202110438288.0)。此外,还发展了基于二级推进的多面砧高压腔技术(专利:202110437145.8);(2)首次建立了FeSe完整高压相图,并阐明高温超导与反铁磁序临界涨落的密切联系,极大地推动了对铁基高温超导机理的统一认识(Nat. Commun. 7, 12146(2016); Phys. Rev. Lett. 118, 147004(2017));发现插层FeSe基超导体中普遍存在“双拱形”超导相图,在块体FeSe基超导体中首次突破50K的超导转变温度 (Nat. Commun. 9, 380(2018); Phys. Rev. B 97, 020508(R)(2018); EPL 130, 67004(2020));(3)建立了n型HgCr2Se4的高压相图,通过调控不同磁基态的竞争,在单价体系中实现了高达1011量级的庞磁阻效应,为进一步探索庞磁电阻效应的新机制和材料体系提供了新思路(Phys. Rev. Lett. 123, 047201(2019));(4)揭示了笼目超导体CsV3Sb5中电荷密度波与超导的共存与非常规竞争关系,并发现了双拱形的超导相 (Phys. Rev. Lett 126, 247001(2021); Phys. Rev. Research 3, 043018(2021); Nat. Commun. 13, 6348(2022));(5)首次在Ni基无限层超导薄膜Pr0.82Sr0.18NiO2中实现30K以上的超导转变温度,为进一步提高Ni基超导体的超导Tc提供了重要线索(Nat. Commun. 13, 4367(2022))。
目前已在Phys. Rev. Lett.、Phys. Rev. X、Nat. Commun.、PNAS等期刊合作发表学术论文70余篇,多次受邀在中国物理学年会、全国低温物理学会、全国高压物理学会做邀请报告。

代表性论文及专利


  1. P. F. Shan, P. T. Yang, Y. T. Shao, Z. Y. Liu, J. Hou, B. S. Wang, Y. Uwatoko, G. H. Cao, J. P. Sun* and J.-G. Cheng; "Pressure-enhanced superconducting transition in the inter-block-layer electron-transfer superconductor BaTh2Fe4As4(N0.7O0.3)2"; Physical Review Materials (2023) 7, 124801.
  2. P. F. Shan, X. Han, X. Li*, Z. Y. Liu, P. T. Yang, B. S. Wang, J. F. Wang, H. Y. Liu, Y. G. Shi, J. P. Sun* and J.-G. Cheng; "Pressure-induced metallic state in a van der Waals cluster Mott insulator Nb3Cl8"; Materials Today Physics (2023) 38, 101267.
  3. J. Hou, K. Y. Chen, J. P. Sun*, Z. Zhao, Y. H. Zhang, P. F. Shan, N. N. Wang, H. Zhang, K. Zhu, Y. Uwatoko, H. Chen, H. T. Yang*, X. L. Dong, H. J. Gao and J.-G. Cheng; “Effect of hydrostatic pressure on the unconventional charge density wave and superconducting properties in two distinct phases of doped kagome superconductors CsV3−xTixSb5”; Physical Review B (2023) 107, 144502.
  4. N. N. Wang, M. W. Yang, Z. Yang, K. Y. Chen, H. Zhang, Q. H. Zhang, Z. H. Zhu, Y. Uwatoko, L. Gu, X. L. Dong, J. P. Sun*, K. J. Jin* and J.-G. Cheng*; “Pressure-induced monotonic enhancement of Tc to over 30K in superconducting Pr0.82Sr0.18NiO2 thin films”; Nature Communications (2022) 13, 4367.
  5. L. F. Shi, Z. Y. Liu, J. Li, X. X. Zhang, N. N. Wang, Q. Cui, K. Y. Chen, Q. Y. Liu, P. T. Yang, J. P. Sun*, B. S. Wang, Y. Uwatoko, Y. Sui, H. X. Yang, and J.-G. Cheng*; “Pressure-driven superconducting dome in the vicinity of CDW in the pyrite-type superconductor CuS2”, Physical Review Materials (2022) 6, 014802.
  6. N. N. Wang, K. Y. Chen, Q. W. Yin, Y. N. N. Ma, B. Y. Pan, X. Yang, X. Y. Ji, S. L. Wu, P. F. Shan, S. X. Xu, Z. J. Tu, C. S. Gong, G. T. Liu, G. Li, Y. Uwatoko, X. L. Dong, H. C. Lei*, J. P. Sun*, J. G. Cheng*; "Competition between charge-density-wave and superconductivity in the kagome metal RbV3Sb5", Physical Review Research (Editors’ Suggestion) (2021) 3, 043018.
  7. K. Y. Chen, N. N. Wang, Q. W. Yin, Y. H. Gu, K. Jiang, Z. J. Tu, C. S. Gong, Y. Uwatoko, J. P. Sun*, H. C. Lei*, J. P. Hu, and J.-G. Cheng*;“Double superconducting dome and triple enhancement of Tc in the kagome superconductor CsV3Sb5 under high pressure”, Physical Review Letters (2021) 126, 247001.
  8. Z. Y. Liu, T. Zhang, S. X. Xu, P. T. Yang, Q. Wang, H. C. Lei, Y. Sui, Y. Uwatoko, B. S. Wang, H. M. Weng*, J. P. Sun*, and J.-G. Cheng; “Pressure effect on the anomalous Hall effect of ferromagnetic Weyl semimetal Co3Sn2S2”; Physical Review Materials (2020) 4, 044203.
  9. J. P. Sun, M. Z. Shi, B. Lei, S. X. Xu, Y. Uwatoko, X. H. Chen, J.-G. Cheng; “Pressure-induced second high-Tc superconducting phase in the organic-ion-intercalated (CTA)0.3FeSe single crystal”; EPL, (2020) 130, 67004.
  10.  J. P. Sun, Y. Y. Jiao, C. J. Yi, S. E. Dissanayake, M. Matsuda, Y. Uwatoko, Y. G. Shi, Y. Q. Li, Z. Fang, and J.-G. Cheng*; “Magnetic competition induced colossal magnetoresistance in n-type HgCr2Se4 under high pressures”, Physical Review Letters (2019) 123, 047201.
  11. J. P. Sun, P. Shahi, H. X. Zhou, Y. L. Huang, K. Y. Chen, B. S. Wang, S. L. Ni, N. N. Li, K. Zhang, W. G. Yang, Y. Uwatoko, G. Xing, J. Sun, D. J. Singh, K. Jin, F. Zhou, G. M. Zhang, X. L. Dong*, Z. X. Zhao, and J.-G. Cheng*; "Reemergence of high-Tc superconductivity in the (Li1-xFex)OHFe1-ySe under high pressure"; Nature Communications (2018) 9, 380.
  12. X. Li=J. P. Sun=, P. Shahi, M. Gao, A. H. MacDonald, Y. Uwatoko, T. Xiang, J. B. Goodenough*, J.-G. Cheng*, and J.-S. Zhou*; "Pressure-induced phase transitions and superconductivity in a black phosphorus single crystal"; PNAS (2018) 115, 9935.
  13. J. P. Sun, G. Z. Ye, P. Shahi, J.-Q. Yan, K. Matsuura, H. Kontani, G. M. Zhang, Q. Zhou, B. C. Sales, T. Shibauchi, Y. Uwatoko, D. J. Singh*, and J.-G. Cheng*; “High-Tc superconductivity in FeSe at high pressure: Dominant hole carriers and enhanced spin fluctuations”; Physical Review Letters (2017) 118, 147004.
  14. J. P. Sun, K. Matsuura, G. Z. Ye, Y. Mizukami, M. Shimozawa, K. Matsubayashi, M. Yamashita, T. Watashige, S. Kasahara, Y. Matsuda, J.-Q. Yan*, B.C. Sales, Y. Uwatoko, J.-G. Cheng*, and T. Shibauchi*; "Dome-shaped magnetic order competing with high-temperature superconductivity at high pressures in FeSe"; Nature Communications (2016) 7, 12146.

目前的研究课题及展望


探索具有奇异物理性质的新材料体系是推动凝聚态科学发展的强大动力,而高压调控在新物态研究方面具有独特的优势,即通过施加高压可以改变量子材料内部原子间距,进而可以精确的调控量子材料物性,而且,高压调控在现代凝聚态物理的研究中正发挥越来越重要的作用。同时,将超高静水压和极低温、强磁场等极端条件相结合,可以进一步探索固体材料在极端环境下的响应,从而能够揭示更多新奇且具有潜在应用价值的物理现象。目前正在承担国家自然科学基金青年项目、面上项目以及中科院青促会基金,主要参与了中科院青年团队、科技部重点研发计划等项目。

培养研究生情况


计划每年招收硕博连读生/博士生1名,欢迎具有物理学相关专业背景且有志于高压物理科学的考生报考。

其他联系方式


课题组网页:http://iopex6.iphy.ac.cn

电话


010-82648017

Email


jpsun@iphy.ac.cn

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