Strong reduction of the Korringa relaxation in the spin-density wave regime of 
EuFe2As2 observed by electron spin resonance

Dengler, E.; Deisenhofer, J.; von Nidda, H. -A. Krug; Khim, Seunghyun; Kim, J. S.; Kim, Kee Hoon; Casper, F.; Felser, C.; Loidl, A.

doi:10.1103/PhysRevB.81.024406

Local TagsRelease HistoryDetailsSummary

Strong reduction of the Korringa relaxation in the spin-density wave regime of EuFe₂As₂ observed by electron spin resonance

Dengler, E., Deisenhofer, J., von Nidda, H.-.-A.-K., Khim, S., Kim, J. S., Kim, K. H., et al. (2010). Strong reduction of the Korringa relaxation in the spin-density wave regime of EuFe₂As₂ observed by electron spin resonance. Physical Review B, 81(2): 024406, pp. 1-5. doi:10.1103/PhysRevB.81.024406.

Item is Released

show all hide all

Basic

show hide

Item Permalink: https://hdl.handle.net/11858/00-001M-0000-0018-9D48-3 Version Permalink: https://hdl.handle.net/11858/00-001M-0000-0018-9D4C-C

Genre: Journal Article

Files

show Files

Locators

show

Creators

show

hide

Creators:
Dengler, E.¹, Author
Deisenhofer, J.¹, Author
von Nidda, H. -A. Krug¹, Author
Khim, Seunghyun¹, Author
Kim, J. S., Author
Kim, Kee Hoon¹, Author
Casper, F.¹, Author
Felser, C.², Author
Loidl, A.¹, Author

Affiliations:
1external, ou_persistent22
2External Organizations, ou_persistent22

Content

show

hide

Free keywords: -

Abstract: Electron spin resonance measurements in EuFe2As2 single crystals revealed an absorption spectrum of a single resonance with Dysonian line shape. Above the spin-density wave (SDW) transition at T-SDW = 190 K the spectra are isotropic and the Eu spins relax via the conduction electrons resulting in a Korringa-type increase in the linewidth. Below T-SDW, a distinct anisotropy develops and the relaxation behavior of the Eu spins changes drastically into one with characteristic properties of a magnetic insulating system, where dipolar and crystal-field interactions dominate. This indicates a spatial confinement of the conduction electrons to the FeAs layers in the SDW state.

Details

show

hide

Language(s):

Dates: Date issued: 2010-01-19

Publication Status: Issued

Pages: -

Publishing info: -

Table of Contents: -

Rev. Type: -

Identifiers: ISI: 000274002100054
DOI: 10.1103/PhysRevB.81.024406

Degree: -

Event

show

Legal Case

show

Project information

show

Source 1

show

hide

Title: Physical Review B

Other : Phys. Rev. B

Source Genre: Journal

Creator(s):

Affiliations:

Publ. Info: Woodbury, NY : American Physical Society

Pages: - Volume / Issue: 81 (2) Sequence Number: 024406 Start / End Page: 1 - 5 Identifier: ISSN: 1098-0121
CoNE: https://pure.mpg.de/cone/journals/resource/954925225008