scholarly journals Anticorrelation between polar lattice instability and superconductivity in the Weyl semimetal candidate MoTe2

2017 ◽  
Vol 95 (10) ◽  
Author(s):  
H. Takahashi ◽  
T. Akiba ◽  
K. Imura ◽  
T. Shiino ◽  
K. Deguchi ◽  
...  
Keyword(s):  
Lattice Instability ◽  
Weyl Semimetal ◽  
Polar Lattice

scholarly journals Superconductivity in Weyl semimetal candidate MoTe2

2016 ◽  
Vol 7 (1) ◽  
Author(s):  
Yanpeng Qi ◽  
Pavel G. Naumov ◽  
Mazhar N. Ali ◽  
Catherine R. Rajamathi ◽  
Walter Schnelle ◽  
...  
Keyword(s):  
Weyl Semimetal

scholarly journals Electron-phonon coupling in the magnetic Weyl semimetal ZrCo2Sn

2021 ◽  
Vol 103 (2) ◽  
Author(s):  
I.Yu. Sklyadneva ◽  
R. Heid ◽  
P. M. Echenique ◽  
E. V. Chulkov
Keyword(s):  
Phonon Coupling ◽  
Weyl Semimetal ◽  
Electron Phonon Coupling

scholarly journals Correlated Magnetic Weyl Semimetal State in Strained Pr 2 Ir 2 O 7

2021 ◽  
pp. 2008528
Author(s):  
Yangyang Li ◽  
Taekoo Oh ◽  
Jaeseok Son ◽  
Jeongkeun Song ◽  
Mi Kyung Kim ◽  
...  
Keyword(s):  
Weyl Semimetal

Anisotropic magnetoelastic response in the magnetic Weyl semimetal Co3Sn2S2

2021 ◽  
Vol 64 (5) ◽  
Author(s):  
Chang Liu ◽  
ChangJiang Yi ◽  
XingYu Wang ◽  
JianLei Shen ◽  
Tao Xie ◽  
...  
Keyword(s):  
Weyl Semimetal

scholarly journals Dynamical characterization of Weyl nodes in Floquet Weyl semimetal phases

2021 ◽  
Vol 103 (9) ◽  
Author(s):  
Muhammad Umer ◽  
Raditya Weda Bomantara ◽  
Jiangbin Gong
Keyword(s):  
Weyl Semimetal

scholarly journals Cobalt-based magnetic Weyl semimetals with high-thermodynamic stabilities

2021 ◽  
Vol 7 (1) ◽  
Author(s):  
Wei Luo ◽  
Yuma Nakamura ◽  
Jinseon Park ◽  
Mina Yoon
Keyword(s):  
Tight Binding ◽  
Three Dimensional ◽  
Interlayer Coupling ◽  
First Principles Calculation ◽  
Optimization Approach ◽  
Binding Model ◽  
Nodal Lines ◽  
Weyl Semimetal ◽  
Topological Quantum ◽  
First Time

AbstractRecent experiments identified Co3Sn2S2 as the first magnetic Weyl semimetal (MWSM). Using first-principles calculation with a global optimization approach, we explore the structural stabilities and topological electronic properties of cobalt (Co)-based shandite and alloys, Co3MM’X2 (M/M’ = Ge, Sn, Pb, X = S, Se, Te), and identify stable structures with different Weyl phases. Using a tight-binding model, for the first time, we reveal that the physical origin of the nodal lines of a Co-based shandite structure is the interlayer coupling between Co atoms in different Kagome layers, while the number of Weyl points and their types are mainly governed by the interaction between Co and the metal atoms, Sn, Ge, and Pb. The Co3SnPbS2 alloy exhibits two distinguished topological phases, depending on the relative positions of the Sn and Pb atoms: a three-dimensional quantum anomalous Hall metal, and a MWSM phase with anomalous Hall conductivity (~1290 Ω−1 cm−1) that is larger than that of Co2Sn2S2. Our work reveals the physical mechanism of the origination of Weyl fermions in Co-based shandite structures and proposes topological quantum states with high thermal stability.

scholarly journals Low-Energy Optical Conductivity of TaP: Comparison of Theory and Experiment

Crystals ◽  
2021 ◽  
Vol 11 (5) ◽  
pp. 567
Author(s):  
Alexander Yaresko ◽  
Artem V. Pronin
Keyword(s):  
Experimental Data ◽  
Optical Conductivity ◽  
Low Energy ◽  
Spin Orbit Coupling ◽  
Spin Orbit ◽  
Natural Explanation ◽  
Weyl Semimetal ◽  
Unintentional Doping ◽  
Mott Formula ◽  
Theory And Experiment

The ab-plane optical conductivity of the Weyl semimetal TaP is calculated from the band structure and compared to the experimental data. The overall agreement between theory and experiment is found to be best when the Fermi level is slightly (20 to 60 meV) shifted upwards in the calculations. This confirms a small unintentional doping of TaP, reported earlier, and allows a natural explanation of the strong low-energy (50 meV) peak seen in the experimental ab-plane optical conductivity: this peak originates from transitions between the almost parallel non-degenerate electronic bands split by spin-orbit coupling. The temperature evolution of the peak can be reasonably well reproduce by calculations using an analog of the Mott formula.

Quasiparticle dynamics and electron-phonon coupling in Weyl semimetal TaAs

2020 ◽  
Vol 4 (6) ◽  
Author(s):  
Qiong Wu ◽  
Fei Sun ◽  
Qianyu Zhang ◽  
L. X. Zhao ◽  
G.-F. Chen ◽  
...  
Keyword(s):  
Phonon Coupling ◽  
Weyl Semimetal ◽  
Electron Phonon Coupling ◽  
Quasiparticle Dynamics

scholarly journals Colossal mid-infrared bulk photovoltaic effect in a type-I Weyl semimetal

2019 ◽  
Vol 18 (5) ◽  
pp. 471-475 ◽  
Author(s):  
Gavin B. Osterhoudt ◽  
Laura K. Diebel ◽  
Mason J. Gray ◽  
Xu Yang ◽  
John Stanco ◽  
...  
Keyword(s):  
Photovoltaic Effect ◽  
Type I ◽  
Mid Infrared ◽  
Weyl Semimetal

scholarly journals Noncollinear ferromagnetic Weyl semimetal with anisotropic anomalous Hall effect

2021 ◽  
Vol 103 (11) ◽  
Author(s):  
Hung-Yu Yang ◽  
Bahadur Singh ◽  
Jonathan Gaudet ◽  
Baozhu Lu ◽  
Cheng-Yi Huang ◽  
...  
Keyword(s):  
Hall Effect ◽  
Anomalous Hall Effect ◽  
Weyl Semimetal
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