Noncentrosymmetric two-dimensional Weyl semimetals in porous Si/Ge structures

被引：0

作者：

Lopes, Emmanuel V. C. ^{[1
]}

Baierle, Rogerio J. ^{[2
]}

Miwa, Roberto H. ^{[1
]}

Schmidt, Tome M. ^{[1
]}

机构：

[1] Univ Fed Uberlandia, Inst Fis, BR-38400902 Uberlandia, MG, Brazil

[2] Univ Fed Santa Maria, Dept Fis, BR-97105990 Santa Maria, RS, Brazil

来源：

JOURNAL OF PHYSICS-CONDENSED MATTER | 2024年 / 36卷 / 18期

关键词：

Weyl semimetal; topological phase of matter; 2D systems; bulk boundary correspondence; silicon; FERMI ARCS; CITRAMALATE; MACROALGAE; BIOSYNTHESIS; FERMENTATION; DISCOVERY; SYNTHASE; NODES;

D O I：

10.1088/1361-648X/ad1e09

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

In this work we predict a family of noncentrosymmetric two-dimensional (2D) Weyl semimetals (WSMs) composed by porous Ge and SiGe structures. These systems are energetically stable graphenylene-like structures with a buckling, spontaneously breaking the inversion symmetry. The nontrivial topological phase for these 2D systems occurs just below the Fermi level, resulting in nonvanishing Berry curvature around the Weyl nodes. The emerged WSMs are protected by C 3 symmetry, presenting one-dimensional edge Fermi-arcs connecting Weyl points with opposite chiralities. Our findings complete the family of Weyl in condensed-matter physics, by predicting the first noncentrosymmetric class of 2D WSMs.

引用

页数：6

共 110 条

[11] Research trends and market opportunities of microalgal biorefinery technologies from circular bioeconomy perspectives [J].

Behera, Bunushree ;

Selvam, Mari S. ;

Paramasivan, Balasubramanian .

BIORESOURCE TECHNOLOGY, 2022, 351

[12] QUANTAL PHASE-FACTORS ACCOMPANYING ADIABATIC CHANGES [J].

BERRY, MV .

PROCEEDINGS OF THE ROYAL SOCIETY OF LONDON SERIES A-MATHEMATICAL AND PHYSICAL SCIENCES, 1984, 392 (1802) :45-57

[13] Nonzero Gap Two-Dimensional Carbon Allotrope from Porous Graphene [J].

Brunetto, G. ;

Autreto, P. A. S. ;

Machado, L. D. ;

Santos, B. I. ;

dos Santos, R. P. B. ;

Galvao, D. S. .

JOURNAL OF PHYSICAL CHEMISTRY C, 2012, 116 (23) :12810-12813

[14] Surface plasmon polaritons in strained Weyl semimetals [J].

Bugaiko, O., V ;

Gorbar, E., V ;

Sukhachov, P. O. .

PHYSICAL REVIEW B, 2020, 102 (08)

[15] Weyl Metals [J].

Burkov, A. A. .

ANNUAL REVIEW OF CONDENSED MATTER PHYSICS, VOL 9, 2018, 9 :359-378

[16] Weyl Semimetal in a Topological Insulator Multilayer [J].

Burkov, A. A. ;

Balents, Leon .

PHYSICAL REVIEW LETTERS, 2011, 107 (12)

[17] Topological quantum properties of chiral crystals [J].

Chang, Guoqing ;

Wieder, Benjamin J. ;

Schindler, Frank ;

Sanchez, Daniel S. ;

Belopolski, Ilya ;

Huang, Shin-Ming ;

Singh, Bahadur ;

Wu, Di ;

Chang, Tay-Rong ;

Neupert, Titus ;

Xu, Su-Yang ;

Lin, Hsin ;

Hasan, M. Zahid .

NATURE MATERIALS, 2018, 17 (11) :978-+

[18] Macroalgae for biofuels production: Progress and perspectives [J].

Chen, Huihui ;

Zhou, Dong ;

Luo, Gang ;

Zhang, Shicheng ;

Chen, Jianmin .

RENEWABLE & SUSTAINABLE ENERGY REVIEWS, 2015, 47 :427-437

[19] THE FERMENTATION PATHWAYS OF ESCHERICHIA-COLI [J].

CLARK, DP .

FEMS MICROBIOLOGY LETTERS, 1989, 63 (03) :223-234

[20] Determination of Antioxidant, Antimicrobial Activity, Heavy Metals and Elements Content of Seaweed Extracts [J].

Cmikova, Natalia ;

Galovicova, Lucia ;

Miskeje, Michal ;

Borotova, Petra ;

Kluz, Maciej ;

Kacaniova, Miroslava .

PLANTS-BASEL, 2022, 11 (11)

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