Phonon Scattering by Inhomogeneously Distributed Paramagnetic Ions

Data Mining and Big Data : second International Conference, DMBD 2017, Fukuoka, Japan, July 27-August 1, 2017. Proceedings. DMBD (Conference) (2nd : 2017 : Fukuoka, Japan) Pub Date : 1985-08-01 DOI:10.1002/PSSB.2221300213

G. Toombs, F. Sheard

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引用次数: 1

Abstract

The Green function for phonons scattered by an inhomogeneous distribution of resonant centres is evaluated. A diagrammatic expansion in two parameters is used: the coupling strength and α, the ratio of the resonant phonon wavelengths to the characteristic wavelength for the distribution of scatterers. For small values of α, a spatially dependent local dispersion and damping of the phonons is obtained. The effect on the linewidth for inelastic neutron scattering is discussed. Die Greensche Funktion fur Phononen, die an einer inhomogenen Verteilung resonanter Zentren gestreut werden, wird berechnet. Es wird eine Diagramm-Entwicklung nach zwei Parametern verwendet: die Starke der Kopplung und das Verhaltnis der resonanten Phononwellenlange zur charakteristischen Wellenlange der Verteilung der Streuzentren (α). Fur kleine Werte von α wird eine ortsabhangige lokale Dispersion sowie eine Dampfung der Phononen erhalten. Die Aus-wirkung auf die Linienbreite bei inelastischer Neutronenstreuung wird diskutiert.

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非均匀分布顺磁离子对声子的散射

以基因对比扫瞄器为扫瞄器的绿色讯号接受评价A diagrammatic扩张在二人组参数是以前常说:the coupling strength andα,the ratio of the resonant phonon wavelengths to the characteristic of scatterers套件wavelength for the .For小values ofαa spatially dependent本地散布和《damping phonons is obtained .线性渴求内线的原因是解码。利用基因一致分布中心传播的手机的绿色函数被计算出来。这后一Diagramm-Entwicklung 2使用参数:强大的27.5%和resonanten形势Phononwellenlange为特色的Wellenlange Streuzentren分布(α).小的值α会认为这是ortsabhangige地方散布及收到的Phononen Dampfung .由此引起了

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Data Mining and Big Data : second International Conference, DMBD 2017, Fukuoka, Japan, July 27-August 1, 2017. Proceedings. DMBD (Conference) (2nd : 2017 : Fukuoka, Japan)

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