Paramagnetic scattering from a cubic ferromagnetPd2MnSn
作者： G. Shirane , Y. J. Uemura , J. P. Wicksted , Y. Endoh , Y. Ishikawa
关键词:
摘要: Paramagnetic neutron scattering from the localized, metallic ferromagnet Pd/sub 2/MnSn is characterized for entire range of energy and momentum (..omega..,Q) space a temperature between T/sub c/ (193 K) room temperature. The function S(Q,..omega..) can be well described by simple double Lorentzian form S(Q,..omega..)proportionalT(1/(kappa/sub 1//sup 2/+q/sup 2/) )..lambda../sub 1/q/sup 2//((..lambda../sub 2/)/sup 2/ +..omega../sup where, larger q, q/sup dependence in both factors changes over to more general functional form. These results are marked contrast case cubic, insulating EuO. This study reinforces our current interpretation constant-energy ridges which have also been observed Ni.
harvard.edu
sci-hub.se 参考文章(16)
Tôru Moriya, Itinerant Electron Magnetism Journal of Magnetism and Magnetic Materials. ,vol. 31, pp. 10- 19 ,(1983) , 10.1016/0304-8853(83)90139-7
O. Steinsvoll, C. F. Majkrzak, G. Shirane, J. Wicksted, Magnetic fluctuation scattering from metallic nickel above the Curie temperature Physical Review Letters. ,vol. 51, pp. 300- 303 ,(1983) , 10.1103/PHYSREVLETT.51.300
O. Steinsvoll, C. F. Majkrzak, G. Shirane, J. Wicksted, Paramagnetic scattering from metallic Ni Physical Review B. ,vol. 30, pp. 2377- 2385 ,(1984) , 10.1103/PHYSREVB.30.2377
Y. J. Uemura, G. Shirane, O. Steinsvoll, J. Wicksted, New explanation of the spin-wave-like excitations in Ni above T/sub c/ Physical Review Letters. ,vol. 51, pp. 2322- 2325 ,(1983) , 10.1103/PHYSREVLETT.51.2322
J. P. Wicksted, G. Shirane, O. Steinsvoll, Inelastic neutron scattering studies of the paramagnetic phase in iron Physical Review B. ,vol. 29, pp. 488- 490 ,(1984) , 10.1103/PHYSREVB.29.488
G. Shirane, O. Steinsvoll, Y. J. Uemura, J. Wicksted, Dynamics of itinerant ferromagnets above TC (invited) Journal of Applied Physics. ,vol. 55, pp. 1887- 1892 ,(1984) , 10.1063/1.333509
J. W. Lynn, Temperature dependence of the magnetic excitations in iron Physical Review B. ,vol. 11, pp. 2624- 2637 ,(1975) , 10.1103/PHYSREVB.11.2624
J. W. Lynn, H. A. Mook, Temperature dependence of the dynamic susceptibility of nickel Physical Review B. ,vol. 23, pp. 198- 206 ,(1981) , 10.1103/PHYSREVB.23.198
Yasuhisa Noda, Yoshikazu Ishikawa, Spin Dynamics in a Heusler Alloy Pd 2 MnSn Journal of the Physical Society of Japan. ,vol. 40, pp. 699- 705 ,(1976) , 10.1143/JPSJ.40.699
P. Résibois, C. Piette, Temperature dependence of the linewidth in critical spin fluctuation Physical Review Letters. ,vol. 24, pp. 514- 516 ,(1970) , 10.1103/PHYSREVLETT.24.514