Showing 2019 · cond-mat.mtrl-sciShow all

32 papers · 2 filters

cond-mat.mtrl-sci2019★ 36 cited

Mechanisms of skyrmion and skyrmion crystal formation from the conical phase

Taehoon Kim, Haijun Zhao, Ben Xu +6

Real-space topological magnetic structures such as skyrmions and merons are promising candidates for information storage and transport. However, the microscopic mechanisms that con…

cond-mat.mtrl-sci2019★ 6 cited

Compensated magnetic insulators for extremely fast spin-orbitronics

Heng-An Zhou, Yiqing Dong, Teng Xu +13

The fast spin dynamics provide many opportunities for the future communication and memory technologies. One of the most promising examples is the domain wall (DW) racetrack memory.…

cond-mat.mtrl-sci2019★ 107 cited

High-Temperature Quantum Anomalous Hall Insulators in Lithium-Decorated Iron-Based Superconductor Materials

Yang Li, Jiaheng Li, Meng Ye +5

Quantum anomalous Hall (QAH) insulator is the key material to study emergent topological quantum effects, but its ultralow working temperature limits experiments. Here, by first-pr…

cond-mat.mtrl-sci2019★ 34 cited

Two-dimensional modeling of the self-limiting oxidation in silicon and tungsten nanowires

Mingchao Liu, Peng Jin, Zhiping Xu +3

Self-limiting oxidation of nanowires has been previously described as a reaction- or diffusion-controlled process. In this letter, the concept of finite reactive region is introduc…

cond-mat.mtrl-sci2019★ 6 cited

Mechanisms of GaN quantum dot formation during nitridation of Ga droplets

H. Lu, C. Reese, S. Jeon +6

We have examined the formation mechanisms of GaN quantum dots (QDs) via annealing of Ga droplets in a nitrogen flux. We consider the temperature and substrate dependence of the siz…

cond-mat.mtrl-sci2019★ 76 cited

Mode-resolved reciprocal space mapping of electron-phonon interaction in the Weyl semimetal candidate Td-WTe

P. Hein, S. Jauernik, H. Erk +5

The selective excitation of coherent phonons provides unique capabilities to control fundamental properties of quantum materials on ultrafast time scales. For instance, in the pres…

cond-mat.mtrl-sci2019★ 59 cited

Layer engineered interlayer excitons

Qinghai Tan, Abdullah Rasmita, Si Li +6

Photoluminescence (PL) from excitons serves as a powerful tool to characterize the optoelectronic property and band structure of semiconductors, especially for atomically thin 2D t…

cond-mat.mtrl-sci2019

Effects of biaxial strain and local constant potential on electronic structure of monolayer SnSe

Feng Sun, Ting Luo, Lin Li +3

We use the modified Becke-Johnson exchange potential (mBJ) with the spin-orbit coupling effect (SOC) to study effects of biaxial strain and local constant potential on electronic s…

cond-mat.mtrl-sci2019★ 71 cited

Spin-Triplet Excitonic Insulator: The Case of Graphone

Zeyu Jiang, Wenkai Lou, Yu Liu +5

While various excitonic insulators have been studied in the literature, due to the perceived too-small spin splitting, spin-triplet excitonic insulator is rare. In two-dimensional…

cond-mat.mtrl-sci2019★ 72 cited

Enhancement of superconductivity in organic-inorganic hybrid topological materials

Haoxiong Zhang, Awabaikeli Rousuli, Shengchun Shen +10

Inducing or enhancing superconductivity in topological materials is an important route toward topological superconductivity. Reducing the thickness of transition metal dichalcogeni…

cond-mat.mtrl-sci2019★ 68 cited

Persistent gapless surface states in MnBi2Te4/Bi2Te3 superlattice antiferromagnetic topological insulator

L. X. Xu, Y. H. Mao, H. Y. Wang +21

Magnetic topological quantum materials (TQMs) provide a fertile ground for the emergence of fascinating topological magneto-electric effects. Recently, the discovery of intrinsic a…

cond-mat.mtrl-sci2019★ 11 cited

Electronic structure of molecular beam epitaxy grown 1T-MoTe film and strain effect

Xue Zhou, Zeyu Jiang, Kenan Zhang +5

Atomically thin transition metal dichalcogenide films with distorted trigonal (1T) phase have been predicted to be candidates for realizing quantum spin Hall effect. Growt…

cond-mat.mtrl-sci2019★ 871 cited

Magnetic Weyl Semimetal Phase in a Kagome Crystal

D. F. Liu, A. J. Liang, E. K. Liu +16

Weyl semimetals are crystalline solids that host emergent relativistic Weyl fermions and have characteristic surface Fermi-arcs in their electronic structure. Weyl semimetals with…

cond-mat.mtrl-sci2019★ 2 cited

Quantum Spin Hall Insulators in Tin Films: Beyond Stanene

Jiaheng Li, Yong Xu

Large-gap quantum spin Hall (QSH) insulators were previously predicted in stanene and its derivatives. Beyond stanene that is the thinnest -Sn(111) film, we propose to explore Q…

cond-mat.mtrl-sci2019★ 16 cited

Ultimate Photo-Thermo-Acoustic Efficiency of Graphene Aerogels

Francesco De Nicola, Lorenzo Donato Tenuzzo, Ilenia Viola +4

The ability to generate, amplify, mix, and modulate sound with no harmonic distortion in a passive opto-acoustic device would revolutionize the field of acoustics. The photo-thermo…

cond-mat.mtrl-sci2019★ 39 cited

Berry Curvature Engineering by Gating Two-Dimensional Antiferromagnets

Shiqiao Du, Peizhe Tang, Jiaheng Li +4

Recent advances in tuning electronic, magnetic, and topological properties of two-dimensional (2D) magnets have opened a new frontier in the study of quantum physics and promised e…

cond-mat.mtrl-sci2019★ 129 cited

A Charge-Density-Wave Topological Semimetal

Wujun Shi, Benjamin J. Wieder, H. L. Meyerheim +14

Topological physics and strong electron-electron correlations in quantum materials are typically studied independently. However, there have been rapid recent developments in quantu…

cond-mat.mtrl-sci2019★ 126 cited

A new opportunity for two-dimensional van der Waals heterostructures: making steep-slope transistors

Juan Lv, Jing Pei, Yuzheng Guo +2

The use of a foreign metallic cold source (CS) has recently been proposed as a promising approach toward the steep-slope field-effect-transistor (FET). In addition to the selection…

cond-mat.mtrl-sci2019★ 65 cited

Topological Lifshitz Transitions and Fermi Arc Manipulation in Weyl Semimetal NbAs

H. F. Yang, L. X. Yang, Z. K. Liu +9

Surface Fermi arcs (SFAs), the unique open Fermi-surfaces (FSs) discovered recently in topological Weyl semimetals (TWSs), are unlike closed FSs in conventional materials and can g…

cond-mat.mtrl-sci2019★ 7.9k cited

VASPKIT: A User-friendly Interface Facilitating High-throughput Computing and Analysis Using VASP Code

Vei Wang, Nan Xu, Jin Cheng Liu +2

We present the VASPKIT, a command-line program that aims at providing a powerful and user-friendly interface to perform high-throughput analysis of a variety of material properties…

cond-mat.mtrl-sci2019★ 136 cited

Antiferromagnetic Topological Insulator MnBi2Te4: Synthesis and Magnetic properties

Hao Li, Shengsheng Liu, Chang Liu +6

Recently, MnBi2Te4 has been discovered as the first intrinsic antiferromagnetic topological insulator (AFM TI), and will become a promising material to discover exotic topological…

cond-mat.mtrl-sci2019

Giant Enhancement of Solid Solubility in Monolayer BNC Alloys by Selective Orbital Coupling

Shiqiao Du, Jianfeng Wang, Lei Kang +2

Solid solubility (SS) is one of the most important features of alloys, which is usually difficult to be largely tuned in the entire alloy concentrations by external approaches. Som…

cond-mat.mtrl-sci2019★ 15 cited

Interlayer quantum transport in Dirac semimetal BaGa

Sheng Xu, Changhua Bao, Yi-Yan Wang +8

Quantum limit is quite easy to achieve once the band crossing exists exactly at the Fermi level () in topological semimetals. In multilayered Dirac fermion system, the density…

cond-mat.mtrl-sci2019★ 326 cited

Topological Electronic Structure and Its Temperature Evolution in Antiferromagnetic Topological Insulator MnBi2Te4

Y. J. Chen, L. X. Xu, J. H. Li +17

Topological quantum materials coupled with magnetism can provide a platform for realizing rich exotic physical phenomena, including quantum anomalous Hall effect, axion electrodyna…