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20032026
Showing 2014 · cond-mat.mtrl-sciShow all

23 papers · 2 filters

cond-mat.mtrl-sci2014★ 28 cited

Polarization-dependent exciton dynamics in tetracene single crystals

Bo Zhang, Chunfeng Zhang, Yanqing Xu +6

We conduct polarization-dependent ultrafast spectroscopy to study the dynamics of singlet fission in tetracene single crystals. The spectrotemporal species for singlet and triplet…

cond-mat.mtrl-sci2014★ 16 cited

Unveiling the Structural Origin of the High Carrier Mobility of a Molecular Monolayer on Boron Nitride

Rui Xu, Daowei He, Yuhan Zhang +10

Very recently, it was demonstrated that the carrier mobility of a molecular monolayer dioctylbenzothienobenzothiophene (C8-BTBT) on boron nitride can reach 10 cm2/Vs, the highest a…

cond-mat.mtrl-sci2014★ 176 cited

Drastic pressure effect on the extremely large magnetoresistance in WTe2: quantum oscillation study

P. L. Cai, J. Hu, L. P. He +7

The quantum oscillations of the magnetoresistance under ambient and high pressure have been studied for WTe single crystals, in which extremely large magnetoresistance was disc…

cond-mat.mtrl-sci2014★ 47 cited

Wafer-scale arrayed p-n junctions based on few-layer epitaxial GaTe

Xiang Yuan, Lei Tang, Peng Wang +12

Two-dimensional (2D) materials have attracted substantial attention in electronic and optoelectronic applications with superior advantages of being flexible, transparent and highly…

cond-mat.mtrl-sci2014★ 149 cited

Landau level splitting in Cd3As2 under high magnetic fields

Junzhi Cao, Sihang Liang, Cheng Zhang +13

Three-dimensional topological Dirac semimetals (TDSs) are a new kind of Dirac materials that exhibit linear energy dispersion in the bulk and can be viewed as three-dimensional gra…

cond-mat.mtrl-sci2014★ 64 cited

Dirac and Weyl Semimetal in XYBi (X=Ba, Eu; Y=Cu, Ag and Au)

Yongping Du, Bo Wan, Di Wang +3

Weyl and Dirac semimetals recently stimulate intense research activities due to their novel properties. Combining first-principles calculations and effective model analysis, we pre…

cond-mat.mtrl-sci2014★ 48 cited

Manipulating local heat flux with different patterns

N. Q. Zhu, X. Y. Shen, J. P. Huang

Since the thermal conduction equation has form invariance under coordinate transformation, one can design thermal metamaterials with novel functions by tailoring materials' thermal…

cond-mat.mtrl-sci2014★ 62 cited

Metallic ferroelectricity induced by anisotropic unscreened coulomb interaction in LiOsO3

H. M. Liu, Y. P. Du, Y. L. Xie +3

As the first well-documented example of the ferroelectric metal, LiOsO3 has received extensive research attention recently. Using density-functional calculations, we perform a syst…

cond-mat.mtrl-sci2014★ 41 cited

Understanding the Magnetic Puzzles of Double Perovskites A2FeOsO6 (A=Ca, Sr)

Yusheng Hou, Hongjun Xiang, Xingao Gong

Double perovskites Sr2FeOsO6 and Ca2FeOsO6 show puzzling magnetic properties, the former a low-temperature antiferromagnet while the later a high-temperature insulating ferrimagnet…

cond-mat.mtrl-sci2014★ 89 cited

BaFeSe: a high magnetic multiferroic with large ferrielectric polarization

Shuai Dong, J. -M. Liu, Elbio Dagotto

The iron-selenides are important because of their superconducting properties. Here, an unexpected phenomenon is predicted to occur in an iron-selenide compound with a quasi-one-dim…

cond-mat.mtrl-sci2014★ 215 cited

Full-range Gate-controlled Terahertz Phase Modulations with Graphene Metasurfaces

Ziqi Miao, Qiong Wu, Xin Li +5

Local phase control of electromagnetic wave, the basis of a diverse set of applications such as hologram imaging, polarization and wave-front manipulation, is of fundamental import…

cond-mat.mtrl-sci2014★ 36 cited

Unexpected Reconstruction of the alpha-Boron (111) Surface

Xiang-Feng Zhou, Artem R. Oganov, Xi Shao +2

We report on a novel reconstruction of the alpha-boron (111) surface, discovered using an ab initio evolution structure search, and reveal that it has an unexpected neat structure…

cond-mat.mtrl-sci2014★ 81 cited

Predicting a Ferrimagnetic Phase of Zn2FeOsO6 with Strong Magnetoelectric Coupling

P. S. Wang, W. Ren, L. Bellaiche +1

Multiferroic materials, in which ferroelectric and magnetic ordering coexist, are of fundamental interest for the development of novel memory devices that allow for electrical writ…

cond-mat.mtrl-sci2014★ 28 cited

Prediction of pressure-induced stabilization of noble-gas-atom compounds with alkali oxides and alkali sulfides

Hao Gao, Jian Sun, Chris J. Pickard +1

The cubic antifluorite structure comprises a face-centered cubic sublattice of anions with cations on the tetrahedral sites. The voids in the antifluorite structure that are crucia…

cond-mat.mtrl-sci2014★ 702 cited

Towards Intrinsic Charge Transport in Monolayer Molybdenum Disulfide by Defect and Interface Engineering

Zhihao Yu, Yiming Pan, Yuting Shen +12

Molybdenum disulfide is considered as one of the most promising two-dimensional semiconductors for electronic and optoelectronic device applications. So far, the charge transport i…

cond-mat.mtrl-sci2014★ 378 cited

Two-dimensional Quasi-Freestanding Molecular Crystals for High-Performance Organic Field-Effect Transistors

Daowei He, Yuhan Zhang, Qisheng Wu +18

Two-dimensional atomic crystals are extensively studied in recent years due to their exciting physics and device applications. However, a molecular counterpart, with scalable proce…

cond-mat.mtrl-sci2014★ 48 cited

Spin Hall effect by surface roughness

Lingjun Zhou, Vahram L. Grigoryan, Sadamichi Maekawa +2

The spin Hall effect and its inverse effect, caused by the spin orbit interaction, provide the interconversion between spin current and charge current. Since the effects make it po…

cond-mat.mtrl-sci2014★ 764 cited

Gate-tunable Phase Transitions in 1T-TaS

Yijun Yu, Fangyuan Yang, Xiu Fang Lu +11

The ability to tune material properties using gate electric field is at the heart of modern electronic technology. It is also a driving force behind recent advances in two-dimensio…

cond-mat.mtrl-sci2014★ 413 cited

Experimental realizations of full control of reflected waves with subwavelength acoustic metasurfaces

Yong Li, Xue Jiang, Rui-qi Li +4

Metasurfaces with subwavelength thickness have exhibited unconventional phenomena in ways that could not be mimicked by traditional materials. Here we report the analytical design…

cond-mat.mtrl-sci2014★ 1.2k cited

Strong Photoluminescence Enhancement of MoS2 through Defect Engineering and Oxygen Bonding

Haiyan Nan, Zilu Wang, Wenhui Wang +9

We report on a strong photoluminescence (PL) enhancement of monolayer MoS2 through defect engineering and oxygen bonding. Micro- PL and Raman images clearly reveal that the PL enha…

cond-mat.mtrl-sci2014★ 8 cited

Determination of the quantized topological magneto-electric effect in topological insulators from Rayleigh scattering

Lixin Ge, Tianrong Zhan, Dezhuan Han +2

Topological insulators (TIs) exhibit many exotic properties. In particular, a topological magneto-electric (TME) effect, quantized in units of the fine structure constant, exists i…

cond-mat.mtrl-sci2014★ 13 cited

Evidence of the side jump mechanism in the anomalous Hall effect in paramagnets

Yufan Li, Gang Su, Dazhi Hou +4

Persistent confusion has existed between the intrinsic (Berry curvature) and the side jump mechanisms of anomalous Hall effect (AHE) in ferromagnets. We provide unambiguous identif…

cond-mat.mtrl-sci2014★ 16 cited

Engineering the accurate distortion of an object's temperature-distribution signature

Y. X. Chen, X. Y. Shen, J. P. Huang

It is up to now a challenge to control the conduction of heat. Here we develop a method to distort the temperature distribution signature of an object at will. As a result, the obj…