Topological Anderson insulators in an Ammann-Beenker quasicrystal and a snub-square crystal

Peng, Tan1; Hua, Chun-Bo1; Chen, Rui2,3,4; Xu, Dong-Hui1; Zhou, Bin1

2021-02-17

10.1103/PhysRevB.103.085307

PHYSICAL REVIEW B   影响因子和分区

2469-9950

2469-9969

The quest for the topological phases of matter in an aperiodic system has been greatly developed recently. Here we investigate the effects of disorder on topological phases of a two-dimensional Ammann-Beenker tiling quasicrystalline lattice. For comparison purposes, we also consider the case of a periodic snub-square crystalline lattice, which has the same primitive tiles as the Ammann-Beenker tiling quasicrystalline lattice. By calculating the spin Bott index and the two-terminal conductance, we confirm that the topological phases with disorder share the similar properties in the two systems which possess different symmetry and periodicity. It is shown that the quantum spin Hall states are robust against weak disorder in both the quasicrystalline lattice and the crystalline lattice. More interesting is that topological Anderson insulator phases induced by disorder appear in the two systems. Furthermore, the quantized conductance plateau contributed by the topological Anderson insulator phase is verified by the distribution of local currents.

SCI ; EI

英语

其他

NSFC[12074108,11704106] ; program of outstanding young and middle-aged scientific and technological innovation team of colleges and universities in Hubei Province[T2020001] ; Chutian Scholars Program in Hubei Province - China Postdoctoral Science Foundation[2019M661678]

Materials Science ; Physics

Materials Science, Multidisciplinary ; Physics, Applied ; Physics, Condensed Matter

WOS:000619134100002

AMER PHYSICAL SOC

20211010027844

Crystals ; Quantum theory ; Spin fluctuations

Combinatorial Mathematics, Includes Graph Theory, Set Theory:921.4 ; Atomic and Molecular Physics:931.3 ; Quantum Theory; Quantum Mechanics:931.4 ; Crystalline Solids:933.1

PHYSICS

Web of Science

1.Hubei Univ, Dept Phys, Wuhan 430062, Peoples R China
2.Southern Univ Sci & Technol, Shenzhen Inst Quantum Sci & Engn, Shenzhen 518055, Peoples R China
3.Southern Univ Sci & Technol, Dept Phys, Shenzhen 518055, Peoples R China
4.Southeast Univ, Sch Phys, Nanjing 211189, Peoples R China

Peng, Tan,Hua, Chun-Bo,Chen, Rui,et al. Topological Anderson insulators in an Ammann-Beenker quasicrystal and a snub-square crystal[J]. PHYSICAL REVIEW B,2021,103(8).

Peng, Tan,Hua, Chun-Bo,Chen, Rui,Xu, Dong-Hui,&Zhou, Bin.(2021).Topological Anderson insulators in an Ammann-Beenker quasicrystal and a snub-square crystal.PHYSICAL REVIEW B,103(8).

Peng, Tan,et al."Topological Anderson insulators in an Ammann-Beenker quasicrystal and a snub-square crystal".PHYSICAL REVIEW B 103.8(2021).