3篇
您的检索式：作者名="ChuanYing Xi"
|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | Electrical transport properties of Fe Se single crystal under high magnetic field显示文摘Understanding the normal electronic state is crucial for unveiling the mechanism of unconventional superconductivity(SC). In this paper, by applying a magnetic field of up to 37T on FeSe single crystals, we could reveal the normal-state transport properties after SC was completely suppressed. The normal-state resistivity exhibited a Fermi liquid behavior at low temperatures. Large orbital magnetoresistance(MR) was observed in the nematic state with H//c, whereas MR was negligible with H//ab. The magnitude of the orbital MR showed an unusual reduction, and Kohler’s rule was severely violated below 10-25 K;these were attributable to spin fluctuations. The results indicated that spin fluctuations played a paramount role in the normalstate transport properties of FeSe albeit the Fermi liquid nature was at low temperature. | HongHui Wang ZhaoHui Cheng MengZhu Shi DongHui Ma WeiZhuang Zhuo ChuanYing Xi Tao Wu JianJun Ying XianHui Chen | 2021 | Science China(Physics,Mechanics & Astronomy)2021，64，8： | 6 |
| 2 | Log-periodic quantum magneto-oscillations and discrete-scale invariance in topological material HfTe5显示文摘Discrete-scale invariance(DSI)is a phenomenon featuring intriguing log-periodicity that can be rarely observed in quantum systems.Here,we report the log-periodic quantum oscillations in the longitudinal magnetoresistivity(ρxx)and the Hall traces(ρyx)of Hf Te5 crystals,which reveal the DSI in the transport-coefficients matrix.The oscillations inρxx andρyx show the consistent log B-periodicity with a phase shift.The finding of the log B oscillations in the Hall resistance supports the physical mechanism as a general quantum effect originating from the resonant scattering.Combined with theoretical simulations,we further clarify the origin of the log-periodic oscillations and the DSI in the topological materials.This work evidences the universality of the DSI in the Dirac materials and provides indispensable information for a full understanding of this novel phenomenon. | Huichao Wang Yanzhao Liu Yongjie Liu Chuanying Xi Junfeng Wang Jun Liu Yong Wang Liang Li Shu Ping Lau Mingliang Tian Jiaqiang Yan David Mandrus Ji-Yan Dai Haiwen Liu Xincheng Xie Jian Wang | 2019 | National Science Review2019，6，5： | 1 |
| 3 | Superconductivity, electronic phase diagram, and pressure effect in Sr_(1-x)Pr_xFBiS_2显示文摘Based on a combination of X-ray diffraction, electrical transports, magnetic susceptibility, specific heat, and pressure-effect measurements, we report the results of experiments on a series of BiS_2-based Sr_(1-x)Pr_xFBiS_2 superconductors with the maximum Tcof 2.7 K for x=0.5 and at ambient pressure. Superconductivity appears only for 0.4≤x≤0.7 whereas the normal-state resistivity shows the semiconducting-like behaviors. The magnetic susceptibility χ(T) displays the low superconducting shielding volume fractions and C(T) shows no distinguishable anomaly near Tc, which suggests a filamentary superconductivity in the Pr-doped polycrystalline samples. By varying doping concentrations, an electronic phase diagram is established. Upon applying pressure on the optimally doped Sr_(0.5)Pr_(0.5)FBiS_2 system, Tcis abruptly enhanced, reaches 8.5 K at the critical pressure of P_c=1.5 GPa, and increases slightly to 9.7 K at 2.5 GPa. Accompanied by the enhancement of superconductivity from the low-to the high-Tc phases, the normal state undergoes a semiconductor-to-metal transition when under pressure. This scenario may be linked to enhanced overlap of the Bi-6 p and S-p orbitals, which contributes to the enhanced superconductivity above Pc. The pressuretemperature phase diagram for Sr_(0.5)Pr_(0.5)FBiS_2 is also presented. | Wei You Lin Li HaiYang Yang JiaLu Wang HongYing Mao Li Zhang ChuanYing Xi Jie Cheng YongKang Luo JianHui Dai YuKe Li | 2019 | Science China(Physics,Mechanics & Astronomy)2019，62，5： | 0 |
您所在的机构暂未开通此部分的功能，请联系管理员