Publications (21)
Superconductivity above 80 K in polyhydrides of hafnium
C. L. Zhang, X. He, Z. W. Li +15
Studies on polyhydrides are attracting growing attentions recently due to their potential high temperature superconductivity (SC). We here report the discovery of SC in hafnium pol…
Record High Tc Element Superconductivity Achieved In Titanium
C. L. Zhang, X. He, C. Liu +15
It is challenging to search for high Tc superconductivity (SC) in transition metal elements wherein d electrons are usually not favored by conventional BCS theory. Here we report d…
Superconductivity in Zirconium Polyhydrides with Tc above 70 K
C. L. Zhang, X. He, Z. W. Li +5
We report the experimental discovery of superconductivity with critical temperature Tc above 70 K in zirconium polyhydrides, the record high so far for 3d transition metal hydrides…
Superconductivity of topological insulator Bi2Se3 at high pressures
P. P. Kong, J. L. Zhang, S. J. Zhang +9
The pressure induced superconductivity and structural evolution for Bi2Se3 single crystal have been studied. The emergence of superconductivity with onset transition temperature (T…
Superconductivity above 200 K Observed in Superhydrides of Calcium
Z. Li, X. He, C. L. Zhang +20
Searching for superconductivity with Tc near room temperature is of great interest both for fundamental science & many potential applications. Here we report the experimental disco…
High-Pressure Induced Structural Phase Transition in CaCrO4: Evidence from Raman Scattering Studies
Y. W. Long, W. W. Zhang, L. X. Yang +5
Raman spectroscopic studies have been carried out on CaCrO4 under pressure up to 26GPa at ambient temperature. The Raman spectra showed CaCrO4 experienced a continuous structural p…
Superconductivity in Strong Spin Orbital Coupling Compound Sb2Se3
P. P. Kong, F. Sun, L. Y. Xing +15
Recently, A2B3 type strong spin orbital coupling compounds such as Bi2Te3, Bi2Se3 and Sb2Te3 were theoretically predicated to be topological insulators and demonstrated through exp…
New Diluted Ferromagnetic Semiconductor isostructural to 122 type iron pnictide superconductor with TC up to 180 K
K. Zhao, Z. Deng, X. C. Wang +18
Diluted magnetic semiconductors (DMS) have received much attention due to its potential applications to spintronics devices. A prototypical system (Ga,Mn)As has been widely studied…
Optical properties of in the normal state
P. Zheng, J. L. Luo, G. T. Liu +5
We present the optical reflectance and conductivity spectra for non-oxide antiperovskite superconductor at different temperatures. The reflectance drops gradually over…
The origin of atomic displacements in HAADF images of the tilted specimen
J. Cui, Y. Yao, Y. G. Wang +2
The effects of the tilt of the crystallographic orientation with respect to an incident electron probe on high-angle annular dark field (HAADF) imaging in aberration-corrected scan…
Superconductivity in Topological Insulator Sb2Te3 Induced by Pressure
J. Zhu, J. L. Zhang, P. P. Kong +15
Topological superconductivity is one of most fascinating properties of topological quantum matters that was theoretically proposed and can support Majorana Fermions at the edge sta…
The superconductivity at 18 K in LiFeAs system
X. C. Wang, Q. Q. Liu, Y. X. Lv +5
A new iron arsenide superconducting system LiFeAs was found that crystallizes into a tetragonal structure with space group P4/nmm. The superconductivity with Tc up to 18 K was obse…
New Diluted ferromagnetic semiconductor Li(Zn,Mn)P with decoupled charge and spin doping
Z. Deng, K. Zhao, B. Gu +15
We report the discovery of a new diluted magnetic semiconductor, Li(Zn,Mn)P, in which charge and spin are introduced independently via lithium off-stoichiometry and the isovalent s…
Superconductivity in HfTe5 Induced via Pressures
Y. Liu, Y. J. Long, L. X. Zhao +15
Recently, ZrTe5 and HfTe5 are theoretically studied to be the most promising layered topological insulators since they are both interlayer weakly bonded materials and also with a l…
Pressure induced Superconductivity in Topological Compound Bi2Te3
J. L. Zhang, S. J. Zhang, H. M. Weng +15
Bi2Te3 compound has been theoretically predicted (1) to be a topological insulator, and its topologically non-trivial surface state with a single Dirac cone has been observed in ph…
Artifacts in magnetic spirals retrieved by transport of intensity equation (TIE)
J. Cui, Y. Yao, X. Shen +2
The artifacts in the magnetic structures reconstructed from Lorentz transmission electron microscopy (LTEM) images with TIE method have been analyzed in detail. The processing for…
Enhancement of the superconducting critical temperature of Sr2CuO3+d up to 95K by ordering dopant atoms
Q. Q. Liu, H. Yang, X. M. Qin +6
We address the question of whether the superconducting transition temperature (Tc) of high-Tc cuprates is enhanced when randomly distributed dopant atoms form an ordered array in t…
Superconductivity with Tc 116K discovered in antimony polyhydrides
K. Lu, X. He, C. L. Zhang +15
Superconductivity (SC) was experimentally observed for the first time in antimony polyhydride. The diamond anvil cell combined with laser heating system was used to synthesize the…
A new 111 type iron pnictide superconductor LiFeP
Z. Deng, X. C. Wang, Q. Q. Liu +5
A new iron pnictide LiFeP superconductor was found. The compound crystallizes into a Cu2Sb structure containing an FeP layer showing superconductivity with maximum Tc of 6K. This i…
Tuning perpendicular magnetic anisotropy in the MgO/CoFeB/Ta thin films
T. Zhu, P. Chen, Q. H. Zhang +2
Understanding the magnetic anisotropy at ferromagnetic metal/oxide interface is a fundamental and intriguing subject. Here we propose an approach to manipulate the strength of perp…
Isostructural Phase Transition of TiN Under High Pressure
J. G. Zhao, L. X. Yang, Y. Yu +8
In situ high-pressure energy dispersive x-ray diffraction experiments on polycrystalline powder TiN with NaCl-type structure have been conducted with the pressure up to 30.1 GPa by…