St Andrews Research Repository

St Andrews University Home
View Item 
  •   St Andrews Research Repository
  • University of St Andrews Research
  • University of St Andrews Research
  • University of St Andrews Research
  • View Item
  •   St Andrews Research Repository
  • University of St Andrews Research
  • University of St Andrews Research
  • University of St Andrews Research
  • View Item
  •   St Andrews Research Repository
  • University of St Andrews Research
  • University of St Andrews Research
  • University of St Andrews Research
  • View Item
  • Login
JavaScript is disabled for your browser. Some features of this site may not work without it.

Creating and controlling Dirac fermions, Weyl fermions, and nodal lines in the magnetic antiperovskite Eu3PbO

Thumbnail
View/Open
Hirschmann_2022_PRM_Creating_controlling_CC.pdf (3.554Mb)
Date
28/11/2022
Author
Hirschmann, Moritz M.
Gibbs , Alexandra
Orlandi, Fabio
Khalyavin, Dmitry
Manuel, Pascal
Abdolazimi, Vahideh
Yaresko, Alexander
Nuss, Jürgen
Takagi, H.
Schnyder, Andreas
Rost, Andreas W.
Funder
EPSRC
EPSRC
Grant ID
EP/P024564/1
EP/T011130/1
Keywords
QC Physics
NDAS
MCP
Metadata
Show full item record
Altmetrics Handle Statistics
Altmetrics DOI Statistics
Abstract
The band topology of magnetic semimetals is of interest both from the fundamental science point of view and with respect to potential spintronics and memory applications. Unfortunately, only a handful of suitable topological semimetals with magnetic order have been discovered so far. One such family that hosts these characteristics is the antiperovskites, A3BO, a family of 3D Dirac semimetals. The A=Eu2+ compounds magnetically order with multiple phases as a function of applied magnetic field. Here, by combining band structure calculations with neutron diffraction and magnetic measurements, we establish the antiperovskite Eu3PbO as a new topological magnetic semimetal. This topological material exhibits a multitude of different topological phases with ordered Eu moments which can be easily controlled by an external magnetic field. The topological phase diagram of Eu3PbO includes an antiferromagnetic Dirac phase, as well as ferro- and ferrimagnetic phases with both Weyl points and nodal lines. For each of these phases, we determine the bulk band dispersions, the surface states, and the topological invariants by means of ab-initio and tight-binding calculations. Our discovery of these topological phases introduces Eu3PbO as a new platform to study and manipulate the interplay of band topology, magnetism, and transport.
Citation
Hirschmann , M M , Gibbs , A , Orlandi , F , Khalyavin , D , Manuel , P , Abdolazimi , V , Yaresko , A , Nuss , J , Takagi , H , Schnyder , A & Rost , A W 2022 , ' Creating and controlling Dirac fermions, Weyl fermions, and nodal lines in the magnetic antiperovskite Eu 3 PbO ' , Physical Review Materials , vol. 6 , no. 11 , 114202 . https://doi.org/10.1103/PhysRevMaterials.6.114202
Publication
Physical Review Materials
Status
Peer reviewed
DOI
https://doi.org/10.1103/PhysRevMaterials.6.114202
ISSN
2475-9953
Type
Journal article
Rights
Copyright © 2022 The Author(s). Open Access, published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI.
Description
Funding: A. W. R. and A. S. G. were supported by the Engineering and Physical Sciences Research Council (grant numbers EP/P024564/1 and EP/T011130/1 respectively). This work has been supported in part by the Alexander von Humboldt Foundation.
Collections
  • University of St Andrews Research
URI
http://hdl.handle.net/10023/26532

Items in the St Andrews Research Repository are protected by copyright, with all rights reserved, unless otherwise indicated.

Advanced Search

Browse

All of RepositoryCommunities & CollectionsBy Issue DateNamesTitlesSubjectsClassificationTypeFunderThis CollectionBy Issue DateNamesTitlesSubjectsClassificationTypeFunder

My Account

Login

Open Access

To find out how you can benefit from open access to research, see our library web pages and Open Access blog. For open access help contact: openaccess@st-andrews.ac.uk.

Accessibility

Read our Accessibility statement.

How to submit research papers

The full text of research papers can be submitted to the repository via Pure, the University's research information system. For help see our guide: How to deposit in Pure.

Electronic thesis deposit

Help with deposit.

Repository help

For repository help contact: Digital-Repository@st-andrews.ac.uk.

Give Feedback

Cookie policy

This site may use cookies. Please see Terms and Conditions.

Usage statistics

COUNTER-compliant statistics on downloads from the repository are available from the IRUS-UK Service. Contact us for information.

© University of St Andrews Library

University of St Andrews is a charity registered in Scotland, No SC013532.

  • Facebook
  • Twitter