BROWSE

Related Scientist

CINAP's photo.

CINAP
나노구조물리 연구단
more info

ITEM VIEW & DOWNLOAD

Lifshitz Transition and Non-Fermi Liquid Behavior in Highly Doped Semimetals

Cited 0 time in webofscience Cited 0 time in scopus
12 Viewed 0 Downloaded
Title
Lifshitz Transition and Non-Fermi Liquid Behavior in Highly Doped Semimetals
Author(s)
Kyungrok Kang; Won June Kim; Dohyun Kim; Sera Kim; Byungdo Ji; Dong Hoon Keum; Suyeon Cho; Young-Min Kim; Sébastien Lebègue; Heejun Yang
Publication Date
2021-01
Journal
ADVANCED MATERIALS, v.33, no.1, pp.1 - 6
Publisher
WILEY-V C H VERLAG GMBH
Abstract
The classical Fermi liquid theory and Drude model have provided fundamental ways to understand the resistivity of most metals. The violation of the classical theory, known as non-Fermi liquid (NFL) transport, appears in certain metals, including topological semimetals, but quantitative understanding of the NFL behavior has not yet been established. In particular, the determination of the non-quadratic temperature exponent in the resistivity, a sign of NFL behavior, remains a puzzling issue. Here, a physical model to quantitatively explain the Lifshitz transition and NFL behavior in highly doped (a carrier density of ≈1022 cm−3) monoclinic Nb2Se3 is reported. Hall and magnetoresistance measurements, the two-band Drude model, and first-principles calculations demonstrate an apparent chemical potential shift by temperature in monoclinic Nb2Se3, which induces a Lifshitz transition and NFL behavior in the material. Accordingly, the non-quadratic temperature exponent in the resistivity can be quantitatively determined by the chemical potential shift under the framework of Fermi liquid theory. This model provides a new experimental insight for nontrivial transport with NFL behavior or sign inversion of Seebeck coefficients in emerging materials
URI
https://pr.ibs.re.kr/handle/8788114/9052
DOI
10.1002/adma.202005742
ISSN
0935-9648
Appears in Collections:
Center for Integrated Nanostructure Physics(나노구조물리 연구단) > 1. Journal Papers (저널논문)
Files in This Item:
There are no files associated with this item.

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