A key scientific facility in Beijing that can generate ultra-extreme experimental conditions is now operational,enabling scientists to conduct groundbreaking research with internationally advanced equipment, the Chinese Academy of Sciences announced Wednesday.

The Synergetic Extreme Condition User Facility (SECUF), located in Beijing's suburban Huairou District, is opening a portal for scientists to observe the bizarre phenomena of matter under such extreme environments.

The 4th Conference on Physics under Synergetic Extreme Conditions held jointly with the Summer School of SECUF (SECUF-2025)

The research groups successfully overcame these challenges with the help of the unique experimental techniques of the Synergetic Extreme Condition User Facility (SECUF). They were the first to observe unconventional superconductivity near the pressure-driven magnetic quantum critical point, contributing to the discovery of the new kagome chromium-based superconductor.

On October 15-16, 2024, the International Workshop on Quantum Materials at Extremes was successfully held at the Huairou Campus of the Institute of Physics, Chinese Academy of Sciences (CAS). This workshop was organized by the Sino-Foreign Joint Research Unit at the CAS Institute Level, namely the "Joint Research Center for Quantum Materials and Physics under Extreme Conditions," jointly undertaken by the Institute of Physics, CAS, and the Max Planck Institute for Chemical Physics of Solids (MPICPS), Germany.

The research team has made significant progress in the research of nickel-based high-temperature superconductors. By partially replacing La with Pr, which has a smaller ion radius, they successfully suppressed the coexistence of other R-P phases and internal apex oxygen vacancies in La3Ni2O7, prepared polycrystalline samples of La2PrNi2O7 with significantly improved purity, and provided two crucial experimental evidences of bulk high-temperature superconductivity under high pressure in these samples: zero resistance (Tconset = 82.5K, Tczero = 60K) and complete diamagnetism (with a superconducting shielding volume fraction reaching 97%). Meanwhile, they revealed the adverse effects of microstructural disorder on high-temperature superconductivity in La3Ni2O7 using various experimental techniques.

From July 16th to 22nd, 2024, the 3rd Conference on Physics under Synergetic Extreme Conditions, held jointly with the Summer School of SECUF, was successfully organized by the Institute of Physics, Chinese Academy of Sciences, and Jilin University at the Huairou Campus of the Institute of Physics, Chinese Academy of Sciences, and the Zhongjian Yanqi Lakeview Hotel. The conference invited a total of 115 presenters from 10 countries and staff from 23 experimental stations of the facility to deliver academic reports, with a total of 140 reports, including 9 keynote reports and 23 experimental station introduction reports during the summer school, as well as 4 plenary reports and 104 sub-session reports during the academic exchange. The conference attracted over 500 researchers from both domestic and international backgrounds to attend and visit the laboratories. Both the number of reports and attendees exceeded previous years, with lively discussions, an active atmosphere, and positive feedback throughout the event.

a team led by Researchers Qu Fanming and Lu Li from the Q02/HX-Q02 Group of the Solid State Quantum Information and Computation Laboratory at the Institute of Physics/National Center for Condensed Matter Physics, Chinese Academy of Sciences, collaborated with Researcher Zhou Yi's team from the T06 Group, Researcher Shi Youguo's team from the HM-01 Group, and Professor Liu Fucai's team from the University of Electronic Science and Technology of China, to discover a new type of electrically driven quantum oscillation phenomenon in one-dimensional nanowires based on charge density waves (TaSe4)2I and TaS3. Specifically, the voltage V exhibits periodic oscillations with the reciprocal of current 1/I. Phenomenologically, this oscillation with a period of 1/I bears a striking resemblance to the magnetically driven quantum oscillations of dHvA and SdH with a period of 1/B.

On May 6, 2024, the Workshop on Odd-Parity Superconductivity and Topological Superconductivity was successfully held at the Huairou Campus of the Institute of Physics, Chinese Academy of Sciences. This workshop was the second in a series of seminars organized by the Synergetic Extreme Condition Experimental Facility to refine scientific objectives. More than 50 experts, scholars, and students from the University of Science and Technology of China, Tsinghua University, Peking University, Beijing Academy of Quantum Information Sciences, Zhejiang University, Hefei Institutes of Physical Science, Chinese Academy of Sciences, and the Institute of Physics, Chinese Academy of Sciences attended the event.

On March 24, 2024, the Symposium on Topological Quantum Devices for the Synergetic Extreme Condition User Facility was successfully held at the Huairou Campus of the Institute of Physics, Chinese Academy of Sciences. Experts and scholars from Peking University, Beijing Academy of Quantum Information Sciences, and the Institute of Physics, Chinese Academy of Sciences, attended the event.