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The ferromagnetic order and the critical exponentγ of Gd monolayers and thin films on W(110) (1987)

Baberschke, K. ; Farle, M. ; Zomack, M.

Springer

Applied physics 44 (1987), S. 13-18

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Details

ISSN: 1432-0630

Schlagwort(e): 75.70AK ; 75.30P ; 76.30Kg

Quelle: Springer Online Journal Archives 1860-2000

Thema: Maschinenbau , Physik

Notizen: Abstract The new application of electron-spin resonance to paramagnetic monolayers on well characterized surfaces (LEED, AES) in UHV is described. The high sensitivity of ESR is demonstrated for 10−2 monolayers NO2 adsorbed on Xe/Ag(111), corresponding to ≈1012 detectable molecules. For monolayers of Gd(0001) on W(110) the critical exponentγ of the susceptibility and the ordering temperatureT c are determined by analysing the ESR intensity and resonance field forT→T c + . Both determinations independently give a monolayerT c of app. 271 K. The critical exponentγ changes from 2D to 3D Ising-values for monolayers to thicker films.

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1007/BF00617887

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