Giant in-plane vibrational and transport anisotropy in van der Waals Ta₂Ni₃Te₅

Tan, Haige1; Zhang, Ying1; Zhao, Zhisheng2,3; Wang, Changlong1; Zhang, Ranran4; Wang, Shasha1; Ma, Xiang1; Feng, Yan1; Gu, Meng5; Lu, Yalin1; Jiang, Juan2,3; Zhang, Shunhong6; Xiang, Bin1

2024-05-01

10.1007/s40843-023-2817-x

SCIENCE CHINA-MATERIALS   影响因子和分区

2095-8226

2199-4501

Recently, layered van der Waals compounds of Ta2M3Te5 (M = Ni, Pd) have garnered revived interest due to their appealing potentials to host various exotic electronic states and exhibit nontrivial transport phenomena, such as the Luttinger liquid, quantum spin Hall effect, high-order topology, and superconductivity. In this paper, we report the synthesis of single-crystalline Ta2Ni3Te5 and reveal multifold in-plane anisotropic properties rooted in its quasi-one-dimensional bonding feature within each constituent layer. Our technique combines the power of polarized Raman spectroscopy, angle-resolved photoemission spectroscopy, first-principles calculations, and electrical/magneto-transport measurements. The phononic vibrations of chain-like low symmetric layered structure give rise to a highly anisotropic Raman response. The distinct intra- and inter-chain bonding characteristics lead to anisotropic dispersion of both electronic bands and acoustic phonons, which collectively result in giant in-plane mobility anisotropy (2000%) between the [100] and [001] directions, as verified by our electrical transport and Hall effect measurements. Accordingly, the transport behaviors along different in-plane directions also exhibit distinct temperature and magnetic-field dependence. The rich in-plane anisotropy revealed by the present work shows that Ta2Ni3Te5 is a promising platform for exploring novel two-dimensional anisotropic electronic dynamics with potential applications in next-generation nanoelectronic devices.

in-plane anisotropy vibrational and electronic transport anisotropy quasi-1D layered structure first-principles calculations angle-resolved photoemission spectroscopy (ARPES)

SCI ; EI

英语

其他

Innovation Program for Quantum Science and Technology[2021ZD0302800] ; National Natural Science Foundation of China["11904350","12174362"] ; Anhui Provincial Natural Science Foundation[2008085QA30] ; Shenzhen Science and Technology Program[KQTD20190929173815000] ; Guangdong Innovative and Entrepreneurial Research Team Program["2019ZT08C044","KY2060000177"]

Materials Science

Materials Science, Multidisciplinary

WOS:001221038800003

SCIENCE PRESS

20241916067653

Photoelectron spectroscopy ; Quantum chemistry ; Quantum Hall effect ; Quantum theory ; Spin Hall effect ; Tantalum compounds ; Tellurium compounds ; Van der Waals forces

Magnetism: Basic Concepts and Phenomena:701.2 ; Physical Chemistry:801.4 ; Classical Physics; Quantum Theory; Relativity:931 ; Physical Properties of Gases, Liquids and Solids:931.2 ; Atomic and Molecular Physics:931.3 ; Quantum Theory; Quantum Mechanics:931.4

Web of Science

1.Univ Sci & Technol China, Dept Mat Sci & Engn, Anhui Lab Adv Photon Sci & Technol, CAS,Key Lab Mat Energy Convers, Hefei 230026, Peoples R China
2.Univ Sci & Technol China, Dept Phys, Hefei 230026, Peoples R China
3.Univ Sci & Technol China, Sch Emerging Technol, Hefei 230026, Peoples R China
4.Chinese Acad Sci, Anhui Key Lab Condensed Matter Phys Extreme Condit, High Magnet Field Lab, Hefei 230031, Peoples R China
5.Southern Univ Sci & Technol, Dept Mat Sci & Engn, Shenzhen 518055, Peoples R China
6.Univ Sci & Technol China, Int Ctr Quantum Design Funct Mat ICQD, Hefei 230026, Peoples R China

Tan, Haige,Zhang, Ying,Zhao, Zhisheng,et al. Giant in-plane vibrational and transport anisotropy in van der Waals Ta₂Ni₃Te₅[J]. SCIENCE CHINA-MATERIALS,2024,67:2201-2209.

Tan, Haige.,Zhang, Ying.,Zhao, Zhisheng.,Wang, Changlong.,Zhang, Ranran.,...&Xiang, Bin.(2024).Giant in-plane vibrational and transport anisotropy in van der Waals Ta₂Ni₃Te₅.SCIENCE CHINA-MATERIALS,67,2201-2209.

Tan, Haige,et al."Giant in-plane vibrational and transport anisotropy in van der Waals Ta₂Ni₃Te₅".SCIENCE CHINA-MATERIALS 67(2024):2201-2209.