• 제목/요약/키워드: Scherzer 초점이탈

검색결과 1건 처리시간 0.014초

GaAs/AlAs/InGaAs 에피층의 고분해능 TEM 이미지 전산모사 (Computer Simulations of HRTEM Images in GaAs/AlAs/InGaAs Epilayers)

  • 이확주;류현;이재덕;남산
    • Applied Microscopy
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    • 제26권4호
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    • pp.479-487
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    • 1996
  • Thin epilayer structures of GaAs/AlAs/InGaAs, grown by Molecular Beam Epitaxy, were investigated by high resolution transmission electron microscopy, Image in the [110] zone axis was taken and compared with the calculated images. The supercell structure which contains GaAs, AlAs and InGaAs layers was designed and was employed in the image calculation with MacTempas computer program. Good agreement was shown between experimental image and a set of calculated images with varying defocus and sample thickness.

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