Strain-Induced Ferroelectric Topological Insulator

Nano Letters
Shi LiuAndrew M Rappe

Abstract

Ferroelectricity and band topology are two extensively studied yet distinct properties of insulators. Nonetheless, their coexistence has never been observed in a single material. Using first-principles calculations, we demonstrate that a noncentrosymmetric perovskite structure of CsPbI3 allows for the simultaneous presence of ferroelectric and topological orders with appropriate strain engineering. Metallic topological surface states create an intrinsic short-circuit condition, helping stabilize bulk polarization. Exploring diverse structural phases of CsPbI3 under pressure, we identify that the key structural feature for achieving a ferroelectric topological insulator is to suppress PbI6 cage rotation in the perovskite structure, which could be obtained via strain engineering. Ferroelectric control over the density of topological surface states provides a new paradigm for device engineering, such as perfect-focusing Veselago lens and spin-selective electron collimator. Our results suggest that CsPbI3 is a simple model system for ferroelectric topological insulators, enabling future studies exploring the interplay between conventional symmetry-breaking and topological orders and their novel applications in electronics and spint...Continue Reading

References

Jan 15, 1990·Physical Review. B, Condensed Matter·A M RappeJ D Joannopoulos
Oct 28, 1996·Physical Review Letters·J P PerdewM Ernzerhof
Mar 3, 2007·Science·Vadim V CheianovB L Altshuler
Mar 16, 2007·Physical Review Letters·Liang FuE J Mele
Jul 23, 2008·Physical Review Letters·Sergey V Levchenko, Andrew M Rappe
Aug 30, 2008·Nano Letters·Cheol-Hwan ParkSteven G Louie
Dec 5, 2008·Journal of the American Chemical Society·Joseph W BennettAndrew M Rappe
Aug 8, 2009·Physical Review Letters·Atsuo ShitadeNaoto Nagaosa
Jun 1, 2010·Nature Materials·Stanislav ChadovShou Cheng Zhang
Sep 30, 2009·Journal of Physics. Condensed Matter : an Institute of Physics Journal·Paolo GiannozziRenata M Wentzcovitch
May 15, 2012·Nature Materials·Kesong YangStefano Curtarolo
Dec 12, 2012·Physical Review Letters·Joseph W BennettDavid Vanderbilt
Oct 27, 2014·Nature Materials·Ruijuan XuLane W Martin
Jan 23, 2015·Nature Communications·Christoph BaeumerLane W Martin
Jul 28, 2015·Journal of the American Chemical Society·Quinten A AkkermanLiberato Manna

❮ Previous
Next ❯

Citations

Sep 1, 2016·The Journal of Physical Chemistry Letters·Linn LeppertJeffrey B Neaton
Apr 4, 2017·Scientific Reports·Tao XuTakayuki Kitamura
Jan 21, 2017·Physical Chemistry Chemical Physics : PCCP·Kai-Wei ChangChao-Cheng Kaun
Jul 7, 2016·Physical Chemistry Chemical Physics : PCCP·Arvin Kakekhani, Sohrab Ismail-Beigi
Apr 27, 2017·Journal of Physics. Condensed Matter : an Institute of Physics Journal·S Liu, R E Cohen
Feb 3, 2018·Physical Chemistry Chemical Physics : PCCP·Atahar ParveenG Vaitheeswaran
Nov 21, 2019·Journal of Physics. Condensed Matter : an Institute of Physics Journal·Xingxing JiangLi-Ming Tang
Aug 27, 2016·Physical Review Letters·Domenico Di SanteSilvia Picozzi
Jun 25, 2016·Physical Review Letters·Liang Z Tan, Andrew M Rappe
Dec 8, 2016·Physical Review Letters·Bartomeu Monserrat, David Vanderbilt
Aug 5, 2017·Physical Review Letters·Bartomeu MonserratDavid Vanderbilt
Mar 17, 2021·The Journal of Chemical Physics·Ravi KashikarB R K Nanda
Mar 21, 2021·Scientific Reports·Raghottam M Sattigeri, Prafulla K Jha
Dec 29, 2020·Nano Letters·Jun-Jie ZhangBoris I Yakobson
Sep 6, 2018·The Journal of Physical Chemistry Letters·Albert FerrandoIsaac Suárez
Dec 31, 2019·ACS Applied Materials & Interfaces·Chuangye SongJinxing Zhang

❮ Previous
Next ❯

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.