scholarly journals Surface Fermi arc connectivity in the type-II Weyl semimetal candidateWTe2

2016 ◽  
Vol 94 (16) ◽  
Author(s):  
J. Sánchez-Barriga ◽  
M. G. Vergniory ◽  
D. Evtushinsky ◽  
I. Aguilera ◽  
A. Varykhalov ◽  
...  
Keyword(s):  
Type Ii ◽  
Fermi Arc ◽  
Weyl Semimetal

scholarly journals Fermi arc electronic structure and Chern numbers in the type-II Weyl semimetal candidateMoxW1−xTe2

2016 ◽  
Vol 94 (8) ◽  
Author(s):  
Ilya Belopolski ◽  
Su-Yang Xu ◽  
Yukiaki Ishida ◽  
Xingchen Pan ◽  
Peng Yu ◽  
...  
Keyword(s):  
Electronic Structure ◽  
Type Ii ◽  
Fermi Arc ◽  
Weyl Semimetal ◽  
Chern Numbers

scholarly journals Observation of Fermi arc and its connection with bulk states in the candidate type-II Weyl semimetal WTe2

2016 ◽  
Vol 94 (24) ◽  
Author(s):  
Chenlu Wang ◽  
Yan Zhang ◽  
Jianwei Huang ◽  
Simin Nie ◽  
Guodong Liu ◽  
...  
Keyword(s):  
Type Ii ◽  
Fermi Arc ◽  
Weyl Semimetal

Quasiparticle interference of Fermi arc states in the type-II Weyl semimetal candidate WTe2

2018 ◽  
Vol 97 (16) ◽  
Author(s):  
Yuan Yuan ◽  
Xing Yang ◽  
Lang Peng ◽  
Zhi-Jun Wang ◽  
Jian Li ◽  
...  
Keyword(s):  
Type Ii ◽  
Fermi Arc ◽  
Quasiparticle Interference ◽  
Weyl Semimetal

scholarly journals Nonsaturating Magnetoresistance and Nontrivial Band Topology of Type‐II Weyl Semimetal NbIrTe 4

2019 ◽  
Vol 5 (8) ◽  
pp. 1900250 ◽  
Author(s):  
Wei Zhou ◽  
Bin Li ◽  
Chun Qiang Xu ◽  
Maarten R. Delft ◽  
Yu Ge Chen ◽  
...  
Keyword(s):  
Type Ii ◽  
Weyl Semimetal

scholarly journals Magnetoresistance and scaling laws in type-II Weyl semimetal WP2

2021 ◽  
pp. 413062
Author(s):  
V. Nagpal ◽  
K.S. Jat ◽  
S. Patnaik
Keyword(s):  
Scaling Laws ◽  
Type Ii ◽  
Weyl Semimetal

The Generation of Switchable Polarized Currents in Nodal Ring Semimetals Using High-Frequency Periodic Driving

2021 ◽  
Author(s):  
Pei-Hao Fu ◽  
Qianqian Lv ◽  
Xiang-Long Yu ◽  
Jun-Feng Liu ◽  
Jiansheng Wu
Keyword(s):  
High Frequency ◽  
Surface Currents ◽  
Switching Effect ◽  
Fermi Arc ◽  
Periodically Driven ◽  
Weyl Semimetal ◽  
Spin Polarized ◽  
High Frequency Electromagnetic Field ◽  
Polarized Surface ◽  
Lead Device

Abstract A nodal ring semimetal (NRSM) can be driven to a spin-polarized NRSM or a spin-polarized Weyl semimetal (SWSM) by a high-frequency electromagnetic field. We investigate the conditions in realizing these phases and propose a switchable spin-polarized currents generator based on periodically driven NRSMs. Both bulk and surface polarized currents are investigated. The polarization of bulk current is sensitive to the amplitude of the driving field and robust against the direction and polarization of the driving, the opaqueness of the lead-device interface and the misalignment between the nodal ring and the interface, which provides sufficient flexibility in manipulating the devices. Similar switchable polarized surface currents are also expected, which is contributed by the Fermi arc surface state associated with the Weyl semimetal (WSM) phases. The generation of polarized currents and the polarization switching effect offer opportunities to design periodic driving controlled topological spintronics devices based on NRSMs.

scholarly journals Author Correction: Signatures of the topological s+− superconducting order parameter in the type-II Weyl semimetal Td-MoTe2

2018 ◽  
Vol 9 (1) ◽  
Author(s):  
Z. Guguchia ◽  
F. von Rohr ◽  
Z. Shermadini ◽  
A. T. Lee ◽  
S. Banerjee ◽  
...  
Keyword(s):  
Order Parameter ◽  
Superconducting Order Parameter ◽  
Type Ii ◽  
Weyl Semimetal

scholarly journals Dynamics of out-of-equilibrium electron and hole pockets in the type-II Weyl semimetal candidate WTe2

2018 ◽  
Vol 97 (11) ◽  
Author(s):  
M. Caputo ◽  
L. Khalil ◽  
E. Papalazarou ◽  
N. Nilforoushan ◽  
L. Perfetti ◽  
...  
Keyword(s):  
Type Ii ◽  
Weyl Semimetal

Impact of domain disorder on optoelectronic properties of layered semimetal MoTe2

2D Materials ◽  
2021 ◽  
Author(s):  
Maanwinder P. Singh ◽  
Jonas Kiemle ◽  
Ilkay Ozdemir ◽  
Philipp Zimmermann ◽  
Takashi Taniguchi ◽  
...  
Keyword(s):  
Van Der Waals ◽  
Topological Type ◽  
Optoelectronic Properties ◽  
Local Domain ◽  
Type Ii ◽  
Relaxation Dynamics ◽  
Weyl Semimetal ◽  
Ultrafast Relaxation ◽  
Low Dimensional ◽  
The Impact

Abstract We address the impact of crystal phase disorder on the generation of helicity-dependent photocurrents in layered MoTe2, which is one of the van der Waals materials to realize the topological type-II Weyl semimetal phase. Using scanning photocurrent microscopy, we spatially probe the phase transition and its hysteresis between the centrosymmetric, monoclinic 1T’ phase to the symmetry-broken, orthorhombic Td phase as a function of temperature. We find a highly disordered photocurrent response in the intermediate temperature regime. Moreover, we demonstrate that helicity-dependent and ultrafast photocurrents in MoTe2 arise most likely from a local breaking of the electronic symmetries. Our results highlight the prospects of local domain morphologies and ultrafast relaxation dynamics on the optoelectronic properties of low-dimensional van der Waals circuits.

scholarly journals Robust edge photocurrent response on layered type II Weyl semimetal WTe2

2019 ◽  
Vol 10 (1) ◽  
Author(s):  
Qinsheng Wang ◽  
Jingchuan Zheng ◽  
Yuan He ◽  
Jin Cao ◽  
Xin Liu ◽  
...  
Keyword(s):  
Energy Harvesting ◽  
Surface States ◽  
Separation Mechanism ◽  
Current Response ◽  
Type Ii ◽  
Nonlinear Optical Effect ◽  
Linear Dispersion ◽  
Weyl Semimetal ◽  
Quantum Materials ◽  
A Charge

AbstractPhotosensing and energy harvesting based on exotic properties of quantum materials and new operation principles have great potential to break the fundamental performance limit of conventional photodetectors and solar cells. Weyl semimetals have demonstrated novel optoelectronic properties that promise potential applications in photodetection and energy harvesting arising from their gapless linear dispersion and Berry field enhanced nonlinear optical effect at the vicinity of Weyl nodes. In this work, we demonstrate robust photocurrent generation at the edge of Td-WTe2, a type-II Weyl semimetal, due to crystalline-symmetry breaking along certain crystal fracture directions and possibly enhanced by robust fermi-arc type surface states. This edge response is highly generic and arises universally in a wide class of quantum materials with similar crystal symmetries. The robust and generic edge current response provides a charge separation mechanism for photosensing and energy harvesting over broad wavelength range.

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