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14 papers · 1 filter
Dense network of one-dimensional mid-gap metallic modes in monolayer MoSe2 and their spatial undulations
Hongjun Liu, Lu Jiao, Fang Yang +9
We report the observation of a dense triangular network of one-dimensional (1D) metallic modes in a continuous and uniform monolayer of MoSe2 grown by molecular-beam epitaxy. High-…
Quasiparticle Dynamics in Reshaped Helical Dirac Cone of Topological Insulators
Lin Miao, Z. F. Wang, Wenmei Ming +14
Topological insulators (TIs) and graphene present two unique classes of materials which are characterized by spin polarized (helical) and non-polarized Dirac-cone band structures,…
Carrier density dependence of the magnetic properties in iron-doped Bi2Se3 topological insulator
H. Li, Y. R. Song, Meng-Yu Yao +8
The electronic and magnetic properties of iron-doped topological insulator Bi1.84-xFe0.16CaxSe3 single crystals were studied. By co-doping Fe and Ca atoms, ferromagnetic bulk state…
Creation of Helical Dirac Fermions by Interfacing Two Gapped Systems of Ordinary Fermions
Z. F. Wang, Meng-Yu Yao, Wenmei Ming +7
Topological insulators (TIs) are a unique class of materials characterized by a surface (edge) Dirac cone state of helical Dirac fermions in the middle of bulk (surface) gap. When…
Quantum Monte Carlo study on speckle variation due to photorelaxation of ferroelectric clusters in paraelectric barium titanate
Kai Ji, Kazumichi Namikawa, Hang Zheng +1
Time-dependent speckle pattern of paraelectric barium titanate observed in a soft x-ray laser pump-probe measurement is theoretically investigated as a correlated optical response…
Low frequency elastic wave propagation in 2D locally resonant phononic crystal with asymmetric resonator
Yongwei Gu, Xudong Luo, Hongru Ma
The resonance modes and the related effects to the transmission of elastic waves in a two dimensional phononic crystal formed by periodic arrangements of a two blocks unit cell in…