Observation of Pendellösung fringes induced by X-ray resonant scattering

Yoshizawa, Masami; Fukamachi, T.; Ehara, K.; Kawamura, Takaaki; Hayakawa, Koto

doi:10.1107/s0108767388001254

Cited by 5 publications

(2 citation statements)

References 9 publications

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“…With x-rays from a tunable synchrotron radiation source, it is possible to select the ratio of F hr and F hi , and make |F hr | |F hi |, or even F hr = 0, near the absorption edge of a component atom in the crystal [4][5][6][7][8][9][10][11][12][13][14][15]. In 1995, Fukamachi et al found that the shape of the dispersion surface is strongly related to the ratio of F hr and F hi [13].…”

Section: Introductionmentioning

confidence: 99%

The relationship of the Poynting vector and the dispersion surface in the absorbing crystal

Zhao

Guo

1996

J. Phys.: Condens. Matter

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The relationship of the Poynting vector and the dispersion surface in the absorbing crystal is studied in detail. It is found that the long-accepted concept in which the physical energy flow of waves in the absorbing crystal is normal to the real part of the dispersion surface is not valid when the contribution of the imaginary part of the atomic scattering factor to the diffraction is comparable to that of the real part.

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Section: Introductionmentioning

confidence: 99%

The relationship of the Poynting vector and the dispersion surface in the absorbing crystal

Zhao

Guo

1996

J. Phys.: Condens. Matter

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“…The slowly varying modulation of the calculated IRP about 5 eV below the edge is the Pendelliisung fringe induced by X-ray resonant scattering (Yoshizawa, Fukamachi, Ehara, Kawamura & Hayakawa, 1988;Fukamachi, Yoshizawa, Ehara, Kawamura & Nakajima, 1990). …”

Section: Theoretical Basismentioning

confidence: 99%

X-ray dynamical diffraction in Ge with a zero-real-part scattering factor

Fukamachi¹,

Negishi²,

Yoshizawa³

et al. 1993

Acta Cryst Sect A

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X-ray dynamical diffraction induced only by the imaginary part of the scattering factor was measured using a Ge perfect crystal. The 844 integrated reflecting intensities near the K-absorption edge were measured in both the Bragg and the Laue cases. The intensities show the characteristic variations for the scattering factor having no real part, which agree well with theoretical predictions. There remains a slight difference between the theoretical [Fukamachi & Kawamura (1993). Acta Cryst. A49, 384-388] and the experimental energy position at which this occurs, which is related to the fine structure of the anomalous scattering factor above the absorption edge.

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