Journal of the Korean Magnetics Society (한국자기학회지)

The Korean Magnetics Society (한국자기학회)
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Angular Momentum Effect of Electron Scattering with Reduced Angular Momentum Expansion

축약 각운동량 전개(Reduced Angular Momentum Expansion) 방법으로 해석한 전자 산란의 각 운동량 효과

  • Kang, J.H. (Department of Nano and Electronic Physics, Kookmin University)
  • 강지훈 (국민대학교, 나노 전자 물리학과)
  • Published : 2008.02.29
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Abstract

We calculate the electron scattering amplitude with reduced angular momentum expansion(RAME) and compare it with the plane wave approximation. By using WKB approximation it is shown that the curvature correction factor given by RAME is originated from the source wave centrifugal potential energy. The factor also can be understood as an effective wave number correction factor in plane wave approximation. Angular momentum and its relationship with scattering amplitude is explicitly shown.

축약 각운동량 전개(Reduced Angular Momentum Expansion) 을 사용하여 산란 진폭을 계산하였고, 평면파 근사와 비교하였다. Wentzel-Kramers-Brillouin(WKB) 방법을 써서 각 운동량이 영이 아닌 초기 파동의 곡률 효과를 주는 항이 광전자 또는 오제(Auger) 전자의 원심 퍼텐셜 에너지(centrifugal potential energy) 항이 됨을 보였으며, 이항은 평면파 근사에서 각 운동량에 의존하는 유효 파수 벡터가 됨을 보였다. 산란 진폭과 각 운동량과 관계를 구체적으로 보였다.

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References

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