Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Phase diagram of the dilute magnet LiHoxY1-xF4
KTH, School of Engineering Sciences (SCI), Theoretical Physics.
KTH, School of Engineering Sciences (SCI), Theoretical Physics, Condensed Matter Theory.ORCID iD: 0000-0003-3228-2826
2007 (English)In: Physical Review B. Condensed Matter and Materials Physics, ISSN 1098-0121, E-ISSN 1550-235X, Vol. 76, no 5Article in journal (Refereed) Published
Abstract [en]

We study the effective long-range Ising dipole model with a local exchange interaction appropriate for the dilute magnetic compound LiHoxY1-xF4. Our calculations yield a value of 0.12 K for the nearest-neighbor exchange interaction. Using a Monte Carlo method, we calculate the phase boundary T-c(x) between the ferromagnetic and paramagnetic phases. We demonstrate that the experimentally observed linear decrease in T-c with dilution is not the simple mean-field result, but a combination of the effects of fluctuations and the exchange interaction. Furthermore, we find a critical dilution x(c)=0.21(2), below which there is no ordering. In agreement with recent Monte Carlo simulations on a similar model, we find no evidence of the experimentally observed freezing of the glassy state in our calculation. We apply the theory of Stephen and Aharony to LiHoxY1-xF4 and find that the theory does predict a finite-temperature freezing of the spin glass. Reasons for the discrepancies are discussed.

Place, publisher, year, edition, pages
2007. Vol. 76, no 5
Keyword [en]
LITHIUM HOLMIUM FLUORIDE, LIHOF4, RANGE, FERROMAGNETISM, ALGORITHM, GLASSES, SYSTEMS
National Category
Other Engineering and Technologies not elsewhere specified
Identifiers
URN: urn:nbn:se:kth:diva-13941ISI: 000249155100094Scopus ID: 2-s2.0-34547994339OAI: oai:DiVA.org:kth-13941DiVA: diva2:328498
Note

QC 20100705

Available from: 2010-07-05 Created: 2010-07-05 Last updated: 2017-04-28Bibliographically approved
In thesis
1. Statics, Domain Structure and Dynamics in the Dilute Dipolar Magnet LiHoF4
Open this publication in new window or tab >>Statics, Domain Structure and Dynamics in the Dilute Dipolar Magnet LiHoF4
2009 (English)Doctoral thesis, comprehensive summary (Other academic)
Place, publisher, year, edition, pages
Stockholm: KTH, 2009. v, 59 p.
Series
Trita-FYS, ISSN 0280-316X ; 2009:52
National Category
Other Engineering and Technologies not elsewhere specified
Identifiers
urn:nbn:se:kth:diva-11166 (URN)978-91-7415-424-5 (ISBN)
Public defence
2009-09-25, Sal FD51, AlbaNova, Roslagstullsbacken 21, Stockholm, 10:00 (English)
Opponent
Supervisors
Note
QC 20100624Available from: 2009-09-25 Created: 2009-09-25 Last updated: 2010-07-05Bibliographically approved

Open Access in DiVA

No full text

Scopus

Authority records BETA

Henelius, Patrik

Search in DiVA

By author/editor
Biltmo, AndersHenelius, Patrik
By organisation
Theoretical PhysicsCondensed Matter Theory
In the same journal
Physical Review B. Condensed Matter and Materials Physics
Other Engineering and Technologies not elsewhere specified

Search outside of DiVA

GoogleGoogle Scholar

urn-nbn

Altmetric score

urn-nbn
Total: 53 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf