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Investigating the Direction of the Group Velocity Vector of a Superdirectional Beam of a Surface Spin Wave
Bulletin of the Russian Academy of Sciences: Physics Pub Date : 2020-06-15 , DOI: 10.3103/s106287382005010x S. V. Gerus , E. H. Lock , A. Yu. Annenkov
中文翻译:
研究表面自旋波超方向光束的群速度矢量的方向
更新日期:2020-06-15
Bulletin of the Russian Academy of Sciences: Physics Pub Date : 2020-06-15 , DOI: 10.3103/s106287382005010x S. V. Gerus , E. H. Lock , A. Yu. Annenkov
Abstract
The directions in which the beams of surface spin waves transfer energy are investigated experimentally and theoretically for the range of frequencies in which superdirectional wave propagation occurs (at one frequency). It is found that these directions are in good agreement with the direction of the vector of group wave velocity, and this direction for a superdirectional beam can be measured with the maximum accuracy.中文翻译:
研究表面自旋波超方向光束的群速度矢量的方向