Nonlinear anomalous Hall effect in few-layer WTe2

Nature Materials
Kaifei KangKin Fai Mak

Abstract

The Hall effect occurs only in systems with broken time-reversal symmetry, such as materials under an external magnetic field in the ordinary Hall effect and magnetic materials in the anomalous Hall effect (AHE)1. Here we show a nonlinear AHE in a non-magnetic material under zero magnetic field, in which the Hall voltage depends quadratically on the longitudinal current2-6. We observe the effect in few-layer Td-WTe2, a two-dimensional semimetal with broken inversion symmetry and only one mirror line in the crystal plane. Our angle-resolved electrical measurements reveal that the Hall voltage maximizes (vanishes) when the bias current is perpendicular (parallel) to the mirror line. The observed effect can be understood as an AHE induced by the bias current, which generates an out-of-plane magnetization. The temperature dependence of the Hall conductivity further suggests that both the intrinsic Berry curvature dipole and extrinsic spin-dependent scatterings contribute to the observed nonlinear AHE.

References

Oct 2, 2009·Physical Review Letters·Yuan TianXiaofeng Jin
Sep 16, 2014·Nature·Mazhar N AliR J Cava
Nov 7, 2014·Physical Review Letters·Hongyi YuWang Yao
Nov 27, 2015·Nature·Alexey A SoluyanovB Andrei Bernevig
Feb 16, 2016·Nature Communications·Tay-Rong ChangM Zahid Hasan
Jul 12, 2017·Nature Materials·Jieun LeeJie Shan
Mar 21, 2018·Nature·Linda YeJoseph G Checkelsky
Jul 25, 2018·Nature·Zaiyao FeiDavid H Cobden
Oct 27, 2018·Science·Ebrahim SajadiDavid H Cobden

❮ Previous
Next ❯

Citations

Feb 13, 2020·Advanced Materials·Han YanZhiqi Liu
Apr 3, 2020·Journal of Physics. Condensed Matter : an Institute of Physics Journal·Souvik SasmalBahadur Singh
Jul 13, 2019·Nature Communications·Z Z DuX C Xie
Dec 7, 2019·Physical Review Letters·Michał Papaj, Liang Fu
Feb 29, 2020·Physical Review Letters·Ding-Fu ShaoEvgeny Y Tsymbal
Jan 11, 2020·Physical Review Letters·O Matsyshyn, I Sodemann
Mar 14, 2020·Physical Review Letters·Pankaj BhallaDimitrie Culcer
Apr 8, 2020·Science Advances·Hiroki IsobeLiang Fu
Jan 11, 2020·Physical Review Letters·Ajit C BalramMark S Rudner
Nov 8, 2020·Nature Communications·Enze ZhangFaxian Xiu
Jan 31, 2021·Nature Communications·Pan HeHyunsoo Yang
Feb 21, 2021·Proceedings of the National Academy of Sciences of the United States of America·Sami DzsaberSilke Paschen
Apr 8, 2021·Nature Communications·Archana TiwariAdam W Tsen
Apr 30, 2021·ACS Nano·Shaozheng JiJonas Weissenrieder
May 19, 2021·Proceedings of the National Academy of Sciences of the United States of America·Yang Zhang, Liang Fu
Jun 16, 2021·Nature Materials·Qiong MaKenneth S Burch
Aug 21, 2021·Nature Communications·Z Z DuX C Xie
Aug 17, 2021·Physical Review Letters·Dennis WawrzikInti Sodemann
Mar 12, 2020·ACS Nano·Mengji ChenHyunsoo Yang
Sep 24, 2021·Nature Communications·Ran JingD N Basov
Dec 8, 2021·Journal of Physics. Condensed Matter : an Institute of Physics Journal·Andhika Kiswandhi, Toshihito Osada

❮ Previous
Next ❯

Methods Mentioned

BETA
atomic force microscopy

Software Mentioned

sim

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.