English
 
User Manual Privacy Policy Disclaimer Contact us
  Advanced SearchBrowse

Item

ITEM ACTIONSEXPORT
 
 
DownloadE-Mail
  Large anomalous Hall and Nernst effects from nodal line symmetry breaking in Fe2MnX (X = P, As, Sb)

Noky, J., Xu, Q., Felser, C., & Sun, Y. (2019). Large anomalous Hall and Nernst effects from nodal line symmetry breaking in Fe2MnX (X = P, As, Sb). Physical Review B, 99(16): 165117, pp. 1-5. doi:10.1103/PhysRevB.99.165117.

Item is

Basic

show hide
Item Permalink: http://hdl.handle.net/21.11116/0000-0003-8A96-8 Version Permalink: http://hdl.handle.net/21.11116/0000-0003-8AA0-C
Genre: Journal Article

Files

show Files

Locators

show

Creators

show
hide
 Creators:
Noky, Jonathan1, Author              
Xu, Qiunan1, Author              
Felser, Claudia2, Author              
Sun, Yan1, Author              
Affiliations:
1Inorganic Chemistry, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863425              
2Claudia Felser, Inorganic Chemistry, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863429              

Content

show
hide
Free keywords: -
 Abstract: A large Berry curvature in the vicinity of the Fermi energy is required in order to obtain a large anomalous Hall and Nernst effect. This Berry curvature can be induced by Weyl points and gapped nodal lines. One of the possible mechanisms takes place in systems with a symmetry group where mirror planes lead to protected nodal line structures. When these mirror symmetries are broken, e.g., via fixing a magnetization direction, a gap in the former nodal line can create Weyl points and a large Berry curvature along the gapped lines. In this work we study this effect in a minimal effective model and relate the results to the real regular Heusler compounds Fe2MnX (X = P, As, Sb). These materials have three mirror planes in the nonmagnetic case, leading to three nodal lines near the Fermi level. However, dependent on the orientation of the magnetization, some of the mirror planes are broken and the respective lines are gapped, creating large Berry curvature. Because the Fermi level is located in vicinity of the gapped lines, this leads to a large anomalous Hall and Nernst effect, which can be tuned to even higher values with a little bit of doping in the system.

Details

show
hide
Language(s): eng - English
 Dates: 2019-04-122019-04-12
 Publication Status: Published in print
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Method: -
 Degree: -

Event

show

Legal Case

show

Project information

show

Source 1

show
hide
Title: Physical Review B
  Abbreviation : Phys. Rev. B
Source Genre: Journal
 Creator(s):
Affiliations:
Publ. Info: Woodbury, NY : American Physical Society
Pages: - Volume / Issue: 99 (16) Sequence Number: 165117 Start / End Page: 1 - 5 Identifier: ISSN: 1098-0121
CoNE: https://pure.mpg.de/cone/journals/resource/954925225008