112 citations · 314 across the 22 of their papers we have counts for
22 papers
Anharmonic Strong-Coupling Effects at the Origin of the Charge Density Wave in CsVSb
Ge He, Leander Peis, Emma Frances Cuddy +8
The formation of charge density waves (CDW) is a long-standing open problem particularly in dimensions higher than one. Various observations in the vanadium antimonides discovered…
A disorder-sensitive emergent vortex phase identified in high-Tc superconductor (Li,Fe)OHFeSe
Dong Li, Peipei Shen, Jinpeng Tian +14
The magneto-transport properties are systematically measured under c-direction fields up to 33 T for a series of single-crystal films of intercalated iron-selenide superconductor (…
Quantum critical fluctuations in an Fe-based superconductor
Daniel Jost, Leander Peis, Ge He +9
Quantum critical fluctuations may prove to play an instrumental role in the formation of unconventional superconductivity. Here, we show that the characteristic scaling of a margin…
Universal scaling of the critical temperature and the strange-metal scattering rate in unconventional superconductors
Jie Yuan, Qihong Chen, Kun Jiang +17
Dramatic evolution of properties with minute change in the doping level is a hallmark of the complex chemistry which governs cuprate superconductivity as manifested in the celebrat…
Magnetic field-tuned quantum criticality in optimally electron-doped cuprate thin films
Xu Zhang, Heshan Yu, Qihong Chen +14
Antiferromagnetic (AF) spin fluctuations are commonly believed to play a key role in electron pairing of cuprate superconductors. In electron-doped cuprates, it is still in paradox…
Ionic liquid gating induced two superconductor-insulator phase transitions in spinel oxide LiTiO
Zhongxu Wei, Qian Li, Ben-Chao Gong +13
The associations between emergent physical phenomena (e.g., superconductivity) and orbital, charge, and spin degrees of freedom of electrons are intriguing in transition metal…
Combinatorial Laser Molecular Beam Epitaxy System Integrated with Specialized Low-temperature Scanning Tunneling Microscopy
Ge He, Zhongxu Wei, Zhongpei Feng +6
We present a newly developed facility, comprised of a combinatorial laser molecular beam epitaxy system and an in-situ scanning tunneling microscopy (STM). This facility aims at ac…
Non-Volatile Superconductivity in an Insulating Copper Oxide Induced via Ionic Liquid Gating
Xinjian Wei, Hao-bo Li, Qinghua Zhang +19
Manipulating the superconducting states of high-T_c cuprate superconductors in an efficient and reliable way is of great importance for their applications in next-generation electr…
Emergent superconductivity in single crystalline films via structural engineering
Wei Hu, Zhongpei Feng, Ben-Chao Gong +15
Spinel compounds have demonstrated rich functionalities but rarely shown superconductivity. Here, we report the emergence of superconductivity in the spinel $\mathrm{MgTi}_2\mathrm…
Anomalies of upper critical field in the spinel superconductor LiTiO
Zhongxu Wei, Ge He, Wei Hu +11
High-field electrical transport and point-contact tunneling spectroscopy were used to investigate superconducting properties of the unique spinel oxide, LiTiO films wit…
Tunable superconductivity in parent cuprate PrCuO thin films
Xinjian Wei, Ge He, Wei Hu +6
In this article, we studied the role of oxygen in PrCuO thin films fabricated by polymer assisted deposition method. The magnetoresistance and Hall resistivity of P…
Comparison of dynamical and equilibrium surface spin-reorientations: Inferences on the nature of the phase transitions in the presence of dipole interactions
G. He, R. Belanger, P. H. Hguyen +1
The influence of long-range dipole interactions on two dimensional magnetism has been studied extensively in the spin-reorientation transition of ferromagnetic ultrathin films. Alt…
The effects of oxygen in spinel oxide Li1+xTi2-xO4-delta thin films
Yanli Jia, Ge He, Wei Hu +11
The evolution from superconducting LiTi2O4-delta to insulating Li4Ti5O12 thin films has been studied by precisely adjusting the oxygen pressure during the sample fabrication proces…
Promoting superconductivity in FeSe films via fine manipulation of crystal lattice
Zhongpei Feng, Jie Yuan, Ge He +12
Stabilized FeSe thin films in ambient pressure with tunable superconductivity would be a promising candidate for superconducting electronic devices yet its superconducting transiti…
Normal State Gap in Parent Cuprate Pr2CuO4+/-δ
Ge He, Xinjian Wei, Xu Zhang +5
We present a tunneling study on single crystalline parent cuprate thin films, i.e. a series of Pr2CuO4+/-δ(PCO) with tunable superconducting transition temperature. The zero-bias a…
Local and long-range realizations of a spin-reorientation surface phase transition
G. He, H. Winch, R. Belanger +2
The spin reorientation transition of an ultrathin film from perpendicular to in-plane magnetization is driven by a competition between dipole and anisotropy energies. \textit{In si…
A conducting nano-filament (CNF) network as a precursor to the origin of superconductivity in electron-doped copper oxides
Heshan Yu, Ge He, Ziquan Lin +9
Emergency of superconductivity at the instabilities of antiferromagnetism has been widely recognized in unconventional superconductors. In copper-oxide superconductors, spin fluctu…
Crystallographic dependent transport properties and oxygen issue in superconducting LiTi2O4 thin films
Yanli Jia, Ge He, Heshan Yu +10
A systematic study is performed on the spinel oxide, i.e. LiTi2O4 thin films oriented along [111]-, [110]-, and [001]-directions, to reveal the crystallographic dependence of trans…
Anisotropic electron-phonon coupling in the spinel oxide superconductor
Ge He, Yanli Jia, Xingyuan Hou +12
Among hundreds of spinel oxides, LiTi2O4 (LTO) is the only one that exhibits superconductivity (Tc ~13 K). Although the general electron-phonon coupling is still the main mechanism…
Transport anomalies and quantum criticality in electron-doped cuprate superconductors
Xu Zhang, Heshan Yu, Ge He +4
Superconductivity research is like running a marathon. Three decades after the discovery of high-Tc cuprates, there have been mass data generated from transport measurements, which…
A close look at antiferromagnetism in multidimensional phase diagram of electron-doped copper oxide
Heshan Yu, Ge He, Ziquan Lin +8
Emergency of superconductivity at the instabilities of antiferromagnetism (AFM), spin/charge density waves has been widely recognized in unconventional superconductors. In copper-o…
Anomalous magnetoresistance in the spinel superconductor LiTi2O4
Kui Jin, Ge He, Xiaohang Zhang +9
Transition-metal oxides offer an opportunity to explore unconventional superconductors, where the superconductivity (SC) is often interrelated with novel phenomena such as spin/cha…