Skip to content Skip to navigation
University of Warwick
  • Study
  • |
  • Research
  • |
  • Business
  • |
  • Alumni
  • |
  • News
  • |
  • About

University of Warwick
Publications service & WRAP

Highlight your research

  • WRAP
    • Home
    • Search WRAP
    • Browse by Warwick Author
    • Browse WRAP by Year
    • Browse WRAP by Subject
    • Browse WRAP by Department
    • Browse WRAP by Funder
    • Browse Theses by Department
  • Publications Service
    • Home
    • Search Publications Service
    • Browse by Warwick Author
    • Browse Publications service by Year
    • Browse Publications service by Subject
    • Browse Publications service by Department
    • Browse Publications service by Funder
  • Help & Advice
University of Warwick

The Library

  • Login
  • Admin

Theory of magnetic ordering in the heavy rare earths : ab initio electronic origin of pair- and four-spin interactions

Tools
- Tools
+ Tools

Mendive-Tapia, Eduardo and Staunton, Julie B. (2017) Theory of magnetic ordering in the heavy rare earths : ab initio electronic origin of pair- and four-spin interactions. Physical Review Letters, 118 (19). 197202. doi:10.1103/PhysRevLett.118.197202 ISSN 0031-9007.

[img]
Preview
PDF
WRAP-theory-magnetic-ordering-heavy-rare-earths-Staunton-2017.pdf - Published Version - Requires a PDF viewer.
Available under License Creative Commons Attribution 4.0.

Download (1113Kb) | Preview
Official URL: http://dx.doi.org/10.1103/PhysRevLett.118.197202

Request Changes to record.

Abstract

We describe a disordered local moment theory for long-period magnetic phases and investigate the temperature and magnetic field dependence of the magnetic states in the heavy rare earth elements (HREs), namely, paramagnetic, conical and helical antiferromagnetic (HAFM), fan, and ferromagnetic (FM) states. We obtain a generic HRE magnetic phase diagram which is consequent on the response of the common HRE valence electronic structure to f-electron magnetic moment ordering. The theory directly links the first-order HAFM-FM transition to the loss of Fermi surface nesting, induced by this magnetic ordering, as well as provides a template for analyzing the other phases and exposing where f-electron correlation effects are particularly intricate. Gadolinium, for a range of hexagonal, close-packed lattice constants c and a, is the prototype, described ab initio, and applications to other HREs are made straightforwardly by scaling the effective pair and quartic local moment interactions that emerge naturally from the theory with de Gennes factors and choosing appropriate lanthanide-contracted c and a values.

Item Type: Journal Article
Subjects: Q Science > QC Physics
Q Science > QD Chemistry
Divisions: Faculty of Science, Engineering and Medicine > Science > Physics
Library of Congress Subject Headings (LCSH): Rare earth metals, Rare earth metals -- Magnetic properties
Journal or Publication Title: Physical Review Letters
Publisher: American Physical Society
ISSN: 0031-9007
Official Date: 11 May 2017
Dates:
DateEvent
11 May 2017Published
13 April 2017Accepted
Volume: 118
Number: 19
Article Number: 197202
DOI: 10.1103/PhysRevLett.118.197202
Status: Peer Reviewed
Publication Status: Published
Access rights to Published version: Open Access (Creative Commons)
Date of first compliant deposit: 15 May 2017
Date of first compliant Open Access: 15 May 2017
Funder: Engineering and Physical Sciences Research Council (EPSRC)
Grant number: EP/J006750/1, EP/M028941/1

Request changes or add full text files to a record

Repository staff actions (login required)

View Item View Item

Downloads

Downloads per month over past year

View more statistics

twitter

Email us: wrap@warwick.ac.uk
Contact Details
About Us