BROWSE

Related Scientist

Researcher

박희철
복잡계 이론물리 연구단
more info

Manipulation of valley isospins in strained graphene for valleytronics

Cited 0 time in webofscience Cited 0 time in scopus
19 Viewed 6 Downloaded
Title
Manipulation of valley isospins in strained graphene for valleytronics
Author(s)
Nojoon Myoung; Hyungkook Choi; Hee Chul Park
Publication Date
2020-02
Journal
CARBON, v.157, no., pp.578 - 582
Publisher
PERGAMON-ELSEVIER SCIENCE LTD
Abstract
Graphene’s outstanding mechanical properties lend to strain engineering, allowing for future valley- tronics and nanoelectromechanic applications. In this work, we have found that a Gaussian-shaped strain on a graphene pen junction results in quantum Hall conductance oscillations due to the rotated angle between valley isospins at the graphene armchair edges. Furthermore, additional Fano resonances were observed as the value of the strain-induced pseudo-magnetic field approaches that of the external magnetic field. The lifted valley degeneracy, stemming from the interplay between the real and pseudo- magnetic fields, results in clearly valley-resolved Fano resonances. Exploring strain engineering as a means to control conductance through valley isospin manipulation is believed to open the door to po- tential graphene valleytronic devices. © 2019 Elsevier Ltd. All rights reserved.
URI
https://pr.ibs.re.kr/handle/8788114/7004
ISSN
0008-6223
Appears in Collections:
Center for Theoretical Physics of Complex Systems(복잡계 이론물리 연구단) > Journal Papers (저널논문)
Files in This Item:
1-s2.0-S0008622319310498-main.pdfDownload

qrcode

  • facebook

    twitter

  • Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.
해당 아이템을 이메일로 공유하기 원하시면 인증을 거치시기 바랍니다.

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

Browse