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pro vyhledávání: '"Chen, M. X."'
Two-stream (TS) and Bump-On-Tail (BOT) electron distributions can induce instabilities in collisionless plasmas, which is closely related to phenomena in space and fusion plasmas. Collisions can lead to unexpected plasma behavior, especially in dense
Externí odkaz:
http://arxiv.org/abs/2407.12556
Autor:
Zhang, Wenhan, Chen, M. X., Dai, Jixia, Wang, Xueyun, Zhong, Zhicheng, Cheong, Sang-Wook, Wu, Weida
Topological insulators are a class of band insulators with non-trivial topology, a result of band inversion due to the strong spin-orbit coupling. The transition between topological and normal insulator can be realized by tuning the spin-orbit coupli
Externí odkaz:
http://arxiv.org/abs/1803.07481
Publikováno v:
Phys. Rev. B 96, 245111 (2017)
The effects of Fe dopants in (Li$_{0.8}$Fe$_{0.2}$OH)FeSe on the electronic band structure are investigated by band unfolding ($k$-projection) technique based on first-principles supercell calculations. Doping 20\% Fe into the LiOH layers has signifi
Externí odkaz:
http://arxiv.org/abs/1711.06802
Autor:
Li, Ping, Li, Xiao, Zhao, Wei, Chen, Hua, Chen, M. X., Guo, Zhi-XIn, Feng, Ji, Gong, Xin-Gao, MacDonald, Allan H.
The discovery of intriguing properties related to the Dirac states in graphene has spurred huge interest in exploring its two-dimensional group-IV counterparts, such as silicene, germanene, and stanene. However, these materials have to be obtained vi
Externí odkaz:
http://arxiv.org/abs/1710.00325
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Publikováno v:
Phys. Rev. B 94, 245139 (2016)
Modifications of the electronic bands of thin FeSe films due to oxygen vacancies in the supporting SrTiO 3 (001) substrate - and the interplay with spin-orbit coupling, magnetism, and epitaxy - are investigated by first-principles supercell calculati
Externí odkaz:
http://arxiv.org/abs/1603.03841
Autor:
Chen, M. X., Weinert, M.
Publikováno v:
Phys. Rev. B 94, 035433(2016)
The Dirac electrons of graphene, an intrinsic zero gap semiconductor, uniquely carry spin and pseudospin that give rise to many fascinating electronic and transport properties. While isolated zigzag graphene nanoribbons are antiferromagnetic semicond
Externí odkaz:
http://arxiv.org/abs/1509.04647
Publikováno v:
Phys. Rev. B 94, 075409 (2016)
We propose a guideline for exploring substrates that stabilize the monolayer honeycomb structure of silicene and germanene while simultaneously preserve the Dirac states: in addition to have a strong binding energy to the monolayer, a suitable substr
Externí odkaz:
http://arxiv.org/abs/1509.04641
Autor:
Chen, M. X., Weinert, M.
Publikováno v:
Nano Lett. 14, 5189 (2014)
The band structure of the recently synthesized (3$\times$3) silicene monolayer on (4$\times$4) Ag(111) is investigated using density functional theory. A $k$-projection technique that includes the $k_\bot$-dependence of the surface bands is used to s
Externí odkaz:
http://arxiv.org/abs/1408.3188
Autor:
Chen, M. X., Podloucky, R.
Publikováno v:
Physical Review B 88, 045134 (2013)
Reliable evaluation of the lattice thermal conductivity is of importance for optimizing the figure-of-merit of thermoelectric materials. Traditionally, when deriving the phonon mediated thermal conductivity $\kappa_{ph} = \kappa - \kappa_{el}$ from t
Externí odkaz:
http://arxiv.org/abs/1212.0803