Experimental study of the magnetic critical behavior of the Ni(001) and Ni(110) surfaces (invited)
作者： S. F. Alvarado , M. Campagna , F. Ciccacci , H. Hopster
DOI: 10.1063/1.330274
关键词: Critical phenomena 、 Critical exponent 、 Scattering 、 Materials science 、 Magnetization 、 Relaxation (NMR) 、 Magnetic structure 、 Heisenberg model 、 Low-energy electron diffraction 、 Condensed matter physics
摘要: Dedicated to Professor S. Methfessel, upon the occasion of his sixtieth birthday. The critical behavior surface magnetization atomically clean Ni surfaces has been studied by spin polarized low energy electron diffraction. exponent β1 order parameter—surface magnetization—is determined from temperature dependence magnetic exchange scattering asymmetry for specularly reflected beam at various angles incidence and kinetic energies primary beam. For (001) we find β1=0.8 (110) β1=0.79, with a statistical uncertainty ±0.02. difference in two is thus within experimental accuracy. This indicates that larger relaxation does not significantly influence value range 0.002≲1−T/TC≲0.1. values are slightly smaller than predictions e‐expansion calculatio...
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sci-hub.se 参考文章(22)
J.F. Van Der Veen, R.G. Smeenk, R.M. Tromp, F.W. Saris, The effect of oxygen coverage on surface relaxation of Ni(110) measured by medium energy ion scattering Surface Science. ,vol. 79, pp. 212- 218 ,(1979) , 10.1016/0039-6028(79)90037-2
S. F. Alvarado, Magnetism of surfaces by spin polarized photoemission European Physical Journal B. ,vol. 33, pp. 51- 60 ,(1979) , 10.1007/BF01325813
J. S. Kouvel, J. B. Comly, Magnetic Equation of State for Nickel Near Its Curie Point Physical Review Letters. ,vol. 20, pp. 1237- 1239 ,(1968) , 10.1103/PHYSREVLETT.20.1237
Amnon Aharony, Guenter Ahlers, Universal Ratios Among Correction-to-Scaling Amplitudes and Effective Critical Exponents Physical Review Letters. ,vol. 44, pp. 782- 785 ,(1980) , 10.1103/PHYSREVLETT.44.782
H.L. Davis, J.R. Noonan, L.H. Jenkins, Determination of a Cu(110) surface contraction by leed intensity analysis Surface Science. ,vol. 83, pp. 559- 571 ,(1979) , 10.1016/0039-6028(79)90063-3
L J Clarke, R Baudoing, Y Gauthier, Extensive LEED analysis of Ni(110). III. Merits and drawbacks of the I(g) approach Journal of Physics C: Solid State Physics. ,vol. 15, pp. 3249- 3260 ,(1982) , 10.1088/0022-3719/15/14/028
S.F. Alvarado, H. Hopster, R. Feder, H. Pleyer, Spin-orbit effects in leed from Ni(001): experiment and theory Solid State Communications. ,vol. 39, pp. 1319- 1322 ,(1981) , 10.1016/0038-1098(81)90235-0
J. David Cohen, Thomas R. Carver, New measurement of the critical exponent β for nickel by microwave transmission Physical Review B. ,vol. 15, pp. 5350- 5366 ,(1977) , 10.1103/PHYSREVB.15.5350
D.L. Adams, H.B. Nielsen, The preparation and surface structure of clean V(110) Surface Science. ,vol. 107, pp. 305- 320 ,(1981) , 10.1016/0039-6028(81)90627-0
J. R. Noonan, H. L. Davis, 1979 LEED analysis of Cu(100) Journal of Vacuum Science and Technology. ,vol. 17, pp. 194- 197 ,(1980) , 10.1116/1.570429