Haiyang Liu
Xiamen University
Polarization (waves)Magnetic fieldExchange interactionScatteringBilayerMaterials scienceCondensed matter physicsElectromagnetic fieldRaman spectroscopyPhase (matter)OptoelectronicsMagnetic momentDopingElectric fieldMonolayerExcitationPhotoluminescence
2Publications
1H-index
0Citations
Publications 4
Newest
#1Jiahao Yao (Ha Tai: Xiamen University)
#2Haiyang Liu (Ha Tai: Xiamen University)H-Index: 1
Last. Junyong Kang (Ha Tai: Xiamen University)H-Index: 28
view all 9 authors...
Abstract null null Two-dimensional (2D) 2H-1 T′ heterojunctions based on transition-metal dichalcogenides have attracted great attention due to their special interface structures and novel properties. Understanding the growth mechanism and the interface structures is essential for their controllable growth. In this work, we successfully synthesize lateral and vertical MoS2/ReS2 heterojunctions by using a two-step chemical vapor deposition (CVD) method, and deeply explore the evolution of the str...
Source
#1Xu Li (Ha Tai: Xiamen University)H-Index: 9
#2Haiyang Liu (Ha Tai: Xiamen University)H-Index: 1
Last. Junyong Kang (Ha Tai: Xiamen University)H-Index: 28
view all 9 authors...
Source
#1Gaohong Liu (Ha Tai: Xiamen University)H-Index: 1
#2Xuanli Zheng (Ha Tai: Xiamen University)H-Index: 7
Last. Chunmiao Zhang (Ha Tai: Xiamen University)H-Index: 6
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Transition-metal dichalcogenides with intrinsic spin-valley degree of freedom have enabled great potentials for valleytronic and optoelectronic applications. However, the degree of valley polarization is usually low under nonresonant excitation at room temperature due to the phonon-assisted intervalley scattering. Here, achiral and chiral Au arrays are designed to enhance the optical response and valley polarization in monolayer and bilayer WS2. A considerable band edge emission with 7 times inc...
Source
#1Haiyang Liu (Ha Tai: Xiamen University)H-Index: 1
#2Deyi Fu (Ha Tai: Xiamen University)H-Index: 1
Last. Junyong Kang (Ha Tai: Xiamen University)H-Index: 28
view all 12 authors...
Lifting the valley degeneracy in two-dimensional transition metal dichalcogenides could promote their applications in information processing. Various external regulations, including magnetic substrate, magnetic doping, electric field, and carrier doping, have been implemented to enhance the valley splitting under the magnetic field. Here, a phase engineering strategy, through modifying the intrinsic lattice structure, is proposed to enhance the valley splitting in monolayer WSe2. The valley spli...
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