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| 1 | Electric-field-controlled superconductor–ferromagnetic insulator transition显示文摘Superconductivity beyond electron-phonon mechanism is always twisted with magnetism. Based on a new field-effect transistor with solid ion conductor as the gate dielectric(SIC-FET), we successfully achieve an electric-field-controlled phase transition between superconductor and ferromagnetic insulator in(Li,Fe)OHFeSe. A dome-shaped superconducting phase with optimal T_c of 43K is continuously tuned into a ferromagnetic insulating phase, which exhibits an electric-field-controlled quantum critical behavior. The origin of the ferromagnetism is ascribed to the order of the interstitial Fe ions expelled from the(Li,Fe)OH layers by gating-controlled Li injection. These surprising findings offer a unique platform to study the relationship between superconductivity and ferromagnetism in Fe-based superconductors. This work also demonstrates the superior performance of the SIC-FET in regulating physical properties of layered unconventional superconductors. | Likuan Ma Bin Lei Naizhou Wang Kaishuai Yang Dayong Liu Fanbao Meng Chao Shang Zeliang Sun Jianhua Cui Changsheng Zhu Tao Wu Zhe Sun Liangjian Zou Xianhui Chen | 2019 | Science Bulletin2019，64，10： | 4 |
| 2 | Study on Interfacial Adhesion Strength of SiOz/PET Composite Packaging Film显示文摘 | Ding Zeliang Wang Wentao Sun Min | 2014 | Advanced Materials Research2014，，881882883： | 1 |
| 3 | Study on Interfacial Bonding Strength of SiO2/PET Composite Packaging Film显示文摘 | Ding Zeliang Wang Wentao Sun Min | 2014 | Advanced Materials Research2014，，881882883： | 1 |
| 4 | Thermal Stress and Assembling Parameters Evolution of CMC Bolted Joint under Transient Thermal Loads显示文摘Ceramic matrix composite(CMC) and superalloy bolted joints have exhibited great potential for high temperature hot structure application in hypersonic aircraft. In service conditions, the thermal expansion mismatch between CMC and superalloy plates will cause complex thermal stress and strain distributions at hole-edge areas and assembly parameters changes of the joints under elevated temperatures. These effects might lead to early damage of joint structure, which will endanger the structural integrity and load carrying capacity of aircraft components. In the present study, transient heat transfer and thermo-structural analysis of C/SiC composite and superalloy bolted joint were carried out by using a commercial FEA software ABAQUS. The stress distributions at hole-edge areas, pre-load loosening, and variation of bolt-hole clearance of CMC bolted joints under transient temperature rises were discussed for better understanding of high temperature structural behaviors. Results showed that pre-load declined with the increase of imposed hot side temperature, due to the thermal expansion mismatch between CMC and superalloy. The bolt-hole clearance for the composite plate decreased, whereas the clearance for the superalloy plate increased with the rise of temperature. | Shuyuan Zhao Zhengyu Li Zeliang Pu Xinyang Sun Wenjiao Zhang | 2021 | Journal of Harbin Institute of Technology(New Series)2021，28，3： | 0 |
| 5 | Magnetic-field-induced electronic instability of Weyl-like fermions in compressed black phosphorus显示文摘Revealing the role of Coulomb interaction in topological semimetals with Dirac/Weyl-like band dispersion shapes a new frontier in condensed matter physics.Topological node-line semimetals(TNLSMs),anticipated as a fertile ground for exploring electronic correlation effects due to the anisotropy associated with their node-line structure,have recently attracted considerable attention.In this study,we report an experimental observation for correlation effects in TNLSMs realized by black phosphorus(BP)under hydrostatic pressure.By performing a combination of nuclear magnetic resonance measurements and band calculations on compressed BP,a magnetic-field-induced electronic instability of Weyl-like fermions is identified under an external magnetic field parallel to the so-called nodal ring in the reciprocal space.Anomalous spin fluctuations serving as the fingerprint of electronic instability are observed at low temperatures,and they are observed to maximize at approximately 1.0 GPa.This study presents compressed BP as a realistic material platform for exploring the rich physics in strongly coupled Weyl-like fermions. | Lixuan Zheng Kaifa Luo Zeliang Sun Dan Zhao Jian Li Dianwu Song Shunjiao Li Baolei Kang Linpeng Nie Min Shan Zhimian Wu Yanbing Zhou Xi Dai Hongming Weng Rui Yu Tao Wu Xianhui Chen | 2023 | Science China(Physics,Mechanics & Astronomy)2023，66，11： | 0 |
| 6 | Magnetic field-induced electronic phase transition in the Dirac semimetal state of black phosphorus under pressure显示文摘Different instabilities have been confirmed to exist in the three-dimensional(3D) electron gas when it is confined to the lowest Landau level in the extreme quantum limit. The recently discovered 3D topological semimetals offer a good platform to explore these phenomena due to the small sizes of their Fermi pockets, which means the quantum limit can be achieved at relatively low magnetic fields. In this work, we report the high-magnetic-field transport properties of the Dirac semimetal state in pressurized black phosphorus. Under applied hydrostatic pressure, the band structure of black phosphorus goes through an insulator-semimetal transition. In the high pressure topological semimetal phase, anomalous behaviors are observed on both magnetoresistance and Hall resistivity beyond the relatively low quantum limit field, which is demonstrated to indicate the emergence of an exotic electronic state hosting a density wave ordering. Our findings bring the first insight into the electronic interactions in black phosphorus under intense field. | Zeliang Sun Ziji Xiang Zhongyi Wang Jinglei Zhang Long Ma Naizhou Wang Chao Shang Fanbao Meng Liangjian Zou Yuanbo Zhang Xianhui Chen | 2018 | Science Bulletin2018，63，23： | 0 |
| 7 | Bolt Design of Ceramic Matrix Composite and Superalloy Bolted Joint Based on Damage Failure Load显示文摘Ceramic matrix composite(CMC)and superalloy bolted joints are commonly used high temperature connection structures in aerospace and aeronautical fields.In this paper,a finite element model coupled with progressive damage analysis of 2D C/SiC composites and superalloy bolted joint was implemented to simulate the uniaxial tensile loading process by using the ABAQUS finite element software.The parametric effects of raised head bolt on stress distribution,tensile performance,and damage process were studied for the CMC⁃superalloy bolted joint structures.The results showed that the final failure load increased first to the maximum value,and then decreased with the rise of bolt diameter,bolt head diameter,and bolt head thickness,respectively.When the three parameters were 5.0 mm,9.5 mm,and 2.8 mm for the current studied bolt configuration,the joint structure gave the maximum load bearing capacity for the considered parameter ranges.It was also found that around 42%potential improvement in load bearing capacity could be achieved by very small adjustments in bolt parameters of the joints. | Chao Lv Shuyuan Zhao Zhengyu Li Zeliang Pu Jianglong Dong Xinyang Sun Wenjiao Zhang | 2021 | Journal of Harbin Institute of Technology(New Series)2021，28，2： | 0 |
| 8 | Manipulating high-temperature superconductivity by oxygen doping in Bi_(2)Sr_(2)CaCu_(2)O_(8)+δ thin flakes显示文摘Harnessing the fascinating properties of correlated oxides requires precise control of their carrier density.Compared to other methods,oxygen doping provides an effective and more direct way to tune the electronic properties of correlated oxides.Although several approaches,such as thermal annealing and oxygen migration,have been introduced to change the oxygen content,a continuous and reversible solution that can be integrated with modern electronic technology is much in demand.Here,we report a novel ionic field-effect transistor using solid Gd-doped CeO_(2)as the gate dielectric,which shows a remarkable carrier-density-tuning ability via electric-field-controlled oxygen concentration at room temperature.In Bi_(2)Sr_(2)CaCu_(2)O_(8+δ))thin flakes,we achieve a reversible superconductor–insulator transition by driving oxygen ions in and out of the samples with electric fields,and map out the phase diagram all the way from the insulating regime to the over-doped superconducting regime by continuously changing the oxygen doping level.Scaling analysis indicates that the reversible superconductor–insulator transition for the Bi-2212 thin flakes follows the theoretical description of a two-dimensional quantum phase transition.Our work provides a route for realizing electric-field control of phase transition in correlated oxides.Moreover,the configuration of this type of transistor makes heterostructure/interface engineering possible,thus having the potential to serve as the next-generation all-solid-state field-effect transistor. | Bin Lei Donghui Ma Shihao Liu Zeliang Sun Mengzhu Shi Weizhuang Zhuo Fanghang Yu Genda Gu Zhenyu Wang Xianhui Chen | 2022 | National Science Review2022，9，10： | 0 |
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