Results 1 to 10 of about 1,373 (141)

Thermoelectric properties of ballistic Normal–Weyl semimetal-Normal junction [PDF]

Scientific Reports, 2023
Weyl semimetals are a new class of topological materials possessing outstanding physical properties. We investigate the thermoelectric properties of a ballistic Weyl semimetal specimen connected to two normal contacts.
Jafar Lotfi, Babak Abdollahipour
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A Weyl-Z 2 semimetal from holography [PDF]

Journal of High Energy Physics, 2021
We present effective field theories for the weakly coupled Weyl-Z 2 semimetal, as well as the holographic realization for the strongly coupled case.
Xuanting Ji, Yan Liu, Ya-Wen Sun, Yun-Long Zhang   +3 more
doaj   +3 more sources

Emergence of Weyl fermions by ferrimagnetism in a noncentrosymmetric magnetic Weyl semimetal [PDF]

Nature Communications, 2023
Condensed matter physics has often provided a platform for investigating the interplay between particles and fields in cases that have not been observed in high-energy physics.
Cong Li, Jianfeng Zhang, Yang Wang, Hongxiong Liu, Qinda Guo, Emile Rienks, Wanyu Chen, Francois Bertran, Huancheng Yang, Dibya Phuyal, Hanna Fedderwitz, Balasubramanian Thiagarajan, Maciej Dendzik, Magnus H. Berntsen, Youguo Shi, Tao Xiang, Oscar Tjernberg   +16 more
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Realization of a two-dimensional Weyl semimetal and topological Fermi strings [PDF]

Nature Communications
A two-dimensional (2D) Weyl semimetal, akin to a spinful variant of graphene, represents a topological matter characterized by Weyl fermion-like quasiparticles in low dimensions.
Qiangsheng Lu, P. V. Sreenivasa Reddy, Hoyeon Jeon, Alessandro R. Mazza, Matthew Brahlek, Weikang Wu, Shengyuan A. Yang, Jacob Cook, Clayton Conner, Xiaoqian Zhang, Amarnath Chakraborty, Yueh-Ting Yao, Hung-Ju Tien, Chun-Han Tseng, Po-Yuan Yang, Shang-Wei Lien, Hsin Lin, Tai-Chang Chiang, Giovanni Vignale, An-Ping Li, Tay-Rong Chang, Rob G. Moore, Guang Bian   +22 more
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High-harmonic generation in Weyl semimetal β-WP2 crystals [PDF]

Nature Communications, 2021
Weyl semimetals have interesting band-structure features that lead to unique properties. Here, the authors observe and study high-harmonic generation in type-II Weyl semimetal β-WP2 crystals.
Yang-Yang Lv, Jinlong Xu, Shuang Han, Chi Zhang, Yadong Han, Jian Zhou, Shu-Hua Yao, Xiao-Ping Liu, Ming-Hui Lu, Hongming Weng, Zhenda Xie, Y. B. Chen, Jianbo Hu, Yan-Feng Chen, Shining Zhu   +14 more
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Active Sites‐Enriched Hierarchical Weyl Semimetal WTe2 Nanowire Arrays for Highly Efficient Hydrogen Evolution Reaction [PDF]

Advanced Science
Weyl semimetal tungsten ditelluride (WTe2), characterized by its high conductivity and robust topological surface state, possesses promising catalytic properties for electrochemical reactions.
Hyeonkyeong Kim, Youngdong Yoo
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Square-root higher-order Weyl semimetals

Nature Communications, 2022
The topological properties of square-root Weyl semimetals are derived from the square of the Hamiltonian. Here, the authors propose a tight-binding model for a square-root higher-order Weyl semimetal hosting both Fermi-arc surface and hinge states.
Lingling Song, Huanhuan Yang, Yunshan Cao, Peng Yan   +3 more
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Hydrodynamic modes of holographic Weyl semimetals

Physics Letters B
We study the quasinormal modes of a holographic model of a Weyl semimetal. The model features quantum phase transition between a topological phase and a trivial phase. We put particular emphasis on the hydrodynamic modes and show that a hydrodynamic mode
Nishal Rai, Karl Landsteiner
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Higher-Order Weyl Semimetals [PDF]

Physical Review Letters, 2020
We investigate higher-order Weyl semimetals (HOWSMs) having bulk Weyl nodes attached to both surface and hinge Fermi arcs. We identify a new type of Weyl node, that we dub a $2nd$ order Weyl node, that can be identified as a transition in momentum space in which both the Chern number and a higher order topological invariant change.
Sayed Ali Akbar Ghorashi, Tianhe Li, Taylor L. Hughes   +2 more
openaire   +7 more sources

Type-II Weyl semimetals [PDF]

Nature, 2015
Fermions in nature come in several types: Dirac, Majorana and Weyl are theoretically thought to form a complete list. Even though Majorana and Weyl fermions have for decades remained experimentally elusive, condensed matter has recently emerged as fertile ground for their discovery as low energy excitations of realistic materials.
Soluyanov, Alexey A., Gresch, Dominik, Wang, Zhijun, Wu, Quansheng, Troyer, Matthias, Dai, Xi, Bernevig, Bogdan Andrei   +6 more
openaire   +4 more sources