X-RAY DIFFRACTION FROM PIEZOELECTRICALLY AMPLIFIED SHEAR WAVES IN THE 50-GHz RANGE

Carlson, David Gray; Segmüller, Armin; Mosekilde, Erik; Cole, Helen; Armstrong, John A.

doi:10.1063/1.1653683

Cited by 25 publications

(3 citation statements)

References 9 publications

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“…Since the pioneering papers of Fox & Carr (1931), Langer (1931) and Barrett & Howe (1932), diffraction of X-rays and neutrons in a crystal volume modulated by ultrasonic waves has attracted a large number of experimental and theoretical studies (White, 1950;Saccocio et al, 1967;Haruta, 1967;Carlson et al, 1971;Kö hler et al, 1974;LeRoux et al, 1975LeRoux et al, , 1976Entin & Assur, 1981;Chapman et al, 1983;Punegov & Pavlov, 1994). The observed experimental rocking curves were explained using the dynamical scattering theory (Kö hler et al, 1974;Authier, 2001), including the phenomenon of X-ray acoustic resonance (Entin & Assur, 1981;Punegov & Pavlov, 1994).…”

Section: Introductionmentioning

confidence: 99%

Coherent and diffuse X-ray scattering in crystals modulated by a surface acoustic wave

Пунегов¹,

Nesterets

Рощупкин

2010

J Appl Cryst

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Equations describing the coherent and diffuse scattering in a crystal modulated by a surface acoustic wave (SAW) are derived using the dynamical X‐ray diffraction theory. The effect of depth attenuation of the Rayleigh surface wave amplitude on the crystal rocking curve profiles is investigated. Results of the numerical simulation of the dynamical diffraction in a mosaic crystal modulated by a SAW, taking into account a block size distribution, are presented. It is shown that the diffuse scattering is distributed in the reciprocal space not only in the vicinity of the main diffraction peak but also about the satellite diffraction peaks, and this distribution depends on the size fluctuations of the crystal defects. Theoretical reciprocal space maps and rocking curves are compared with the corresponding experimental results.

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Section: Introductionmentioning

confidence: 99%

Coherent and diffuse X-ray scattering in crystals modulated by a surface acoustic wave

Пунегов¹,

Nesterets

Рощупкин

2010

J Appl Cryst

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“…A preliminary evaluation [4] of corresponding experiments was based on the kinematical theory and gave too high frequencies since multi-phonon scattering was neglected. Investigations of Carlson et al [5] with acoustoelectrically vibrating GaAs a t frequencies of about 50 GHz showed increased angular resolution but considerably reduced intensity of inelastic scattering.…”

Section: Acoustoelectrical Vibration Generation [3]mentioning

confidence: 96%

Evaluation of Acoustoelectric Wave Vectors and Amplitudes from X‐Ray Diffraction Experiments

Köhler¹,

Möhling²,

Peibst³

1974

Physica Status Solidi (b)

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On the basis of a theory presented earlier [l] diffraction phenomena in CdS crystals with acoustoelectrically generated lattice vibrations are analyzed. Evidence for the generation of a second harmonic is given. Wave vectors and amplitudes of first and second harmonics are calculated from measured changes of reflection curves. The increase of the integrated intensities in dependence on the vibration amplitudes is evaluated, and a model for the transition from dynainical t o kinematical diffraction behaviour is discussed.Auf der Grundlage einer kiirzlich veroffentlichten Theorie [l] werden Beugungsphanomene an CdS-Kristallen mit akustoelektrisch angeregten Gitterschwingungen analysiert. Das Auftreten einer zweiten Harmonischen wird nachgewiesen. Wellenvektoren und Amplituden der ersten und zweiten Harmonischen werden aus gemessenen Anderungen der Reflexionskurven berechnet. Die Zunahme der Integralintensitat in Abhzngigkeit von der Schwingungsamplitude wird ausgewertet und einModeIl fur den Ubergang vom dynamjachen zuin kinematischen Reflexionsvermogen diskutiert.

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“…like CdS [5] and GaAs [6] and piezo-electric insulators like quartz [7] excited in the GHz-frequency range. In these experiments only a broadening of the wings of the associated Bragg peaks was observed as a consequence of the excited ultrasound and hypersound modes.…”

Section: Introductionmentioning

confidence: 99%

X‐Ray Brillouin Scattering of Mössbauer Radiation by an Oscillating Quartz Crystal

Jex

Müller

1987

Physica Status Solidi (b)

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The elastic and inelastic scattering from x-cut quartz single crystal is investigated by means of Mossbaner diffractometry from the (1120) Bragg plane using a Wo-source and a Mossbauer ahsorber for the energy analysis. When the crystal is excited to piezo-electric vibrations in the MHzrange, inelastically scattered quanta are resolved. The phonon energies are in the range 40 neP < < ?&,< 150neV.MoSbauer y-Quanten einer 57Co-Quelle, die von einem X-Schnitt-Quarz-Einkristall an der (1 120)-Netzebene elastisch und unelastiseh gestreut werden, werden mit einem MoSbauer-y-Diffraktometer und einem MoBbauerabsorber analysiert. An einem Kristall, der zu piezo-elektrischen Eigenschwingungen im MHz-Gebiet angeregt wird, konnen erstmals Phononen im Energiebereich 40 neV < fiQQ < 150 neV in einem Streuexperiment gemessen werden.

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X-RAY DIFFRACTION FROM PIEZOELECTRICALLY AMPLIFIED SHEAR WAVES IN THE 50-GHz RANGE

Cited by 25 publications

References 9 publications

Coherent and diffuse X-ray scattering in crystals modulated by a surface acoustic wave

Coherent and diffuse X-ray scattering in crystals modulated by a surface acoustic wave

Evaluation of Acoustoelectric Wave Vectors and Amplitudes from X‐Ray Diffraction Experiments

X‐Ray Brillouin Scattering of Mössbauer Radiation by an Oscillating Quartz Crystal

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