Line broadening effect in the rayleigh scattering of Mössbauer radiation on single crystals

Gavrilov, V. N.; Zolotojabko, E V; Iolin, E. M.

doi:10.1016/0375-9601(80)90864-6

Cited by 7 publications

(5 citation statements)

References 2 publications

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“…HW = 0.25, k,/Ak, = 1.5. t means total intensity; 0, 1, 2 elastic, one-, and double-phonon scattering ment also can be tested using modern X-ray or synchrotron sources of radiation (the oscillation at the t o p of the I,(Q) curve induced by AW in the deformed crystal). How can a Fresnel, non-Gaussian wave packet (12) X-rays with a fixed value of Q be created? Probably this may be done using the Authier collimator a t the deformed single crystal.…”

Section: Resultsmentioning

confidence: 99%

“…Q is the conserved value, but Q is I z o t an inzpulse. It is necessary to point out that the diffraction of the Frrsnel, non-Gaussian wave packet (12) corresponds to a fixed value Q.…”

Section: Integral Of Motionmentioning

confidence: 99%

“…Equations (1 l), (12) are written using dimensionless values. Q is the exact integral of motion, y the deviation of the ingoing plane wave from the Bragg angle.…”

Section: Integral Of Motionmentioning

confidence: 99%

“…The energy resolution of ordinary neutron spin-echo spectrometers (NSES), 1 to 0.1 peV, is not so good as in RSMR; the neutron wavelength is large in NSES and diffraction in silicon is not possible (as a rule); the angular resolution is also not as high in NSES as in RSMR with SR excitation. RSMR experiments using radioactive 57Fe sources were realized for the cases of perfect [ll] and also deformed [12] silicon single crystals excited by ultrasound. Similar experiments can be more effectively realized using highly-collimated Mossbauer resonantly scattering beams from synchrotrons.…”

Section: Introductionmentioning

confidence: 99%

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The Influence of Ultrasound on the Rayleigh Scattering of Mössbauer Radiation in Deformed Crystals. New Integral of Motion of the Takagi Equations

Iolin

Muromtsev

Rusevich

1994

Physica Status Solidi (b)

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The exact integral of motion Q is found for the Takagi equations. These are transformed from the system of two differential equations with partial derivatives to the system of two ordinary differential equations. The RSMR spectra are analyzed for the cases of perfect and deformed single crystals excited by ultrasound. An oscillatory Q-dependence of the total intensity of diffracted beam and RSMR spectrum is found.Es wird das exakte Integral der Bewegung fur die Takagi-Gleichungen gefunden. Dicse Gleichungen werden aus dem System von zwei Differentialgleichungen mit partiellen Ableitungen in das System gewohnlicher Differentialgleichungen umgeformt. Das MoBbauerspektrum bei Ultraschallanregung wird fur perfekte und gestorte Kristalle analysiert. Es werden oszillierende Q-Abhingigkeiten in der Gesamtintensitit der gebeugten Welle und im MoBbauerspektrum gefunden.

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Section: Resultsmentioning

confidence: 99%

“…Q is the conserved value, but Q is I z o t an inzpulse. It is necessary to point out that the diffraction of the Frrsnel, non-Gaussian wave packet (12) corresponds to a fixed value Q.…”

Section: Integral Of Motionmentioning

confidence: 99%

“…Equations (1 l), (12) are written using dimensionless values. Q is the exact integral of motion, y the deviation of the ingoing plane wave from the Bragg angle.…”

Section: Integral Of Motionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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The Influence of Ultrasound on the Rayleigh Scattering of Mössbauer Radiation in Deformed Crystals. New Integral of Motion of the Takagi Equations

Iolin

Muromtsev

Rusevich

1994

Physica Status Solidi (b)

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“…BaTiO 3 and Ba 0.54 Sr 0.46 Nb 2 O 6 monocrystals in the vicinity of the phase transition were investigated using the Rayleigh scattering of Mössbauer radiation in [23]. A large (6-7 Γ) broadening of the Mössbauer line showed that during the phase transition slow processes dominated with the characteristic frequency equal to 5-10 MHz.…”

Section: Application Possibilities Of the Rsmr Methodsmentioning

confidence: 99%

Application of semiconductor detector for recording the Rayleigh scattering of Mössbauer radiation

Reklaitis¹

2010

Lithuanian J. Phys.

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The method of the Rayleigh scattering of Mössbauer radiation (RSMR) for the study of dynamics of atoms in polystyrene demonstrating advantages of the application of the semiconductor Si-PIN detector (Amptek Inc.) was used for recording scattered radiation. It has been shown that for recording the RSMR spectra the semiconductor detector can be much more suitable than other types of detection because of the increased quality of spectra under the same collimating conditions. The dependence of probability of the Rayleigh elastic scattering fR on the scattering angle was obtained. By means of the RSMR method the scattering was studied within the angle range at the main Bragg maximum of a polystyrene sample which corresponds to the distance d = 4.44 Å approximately equal to the distance between the polymer chains.

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On the Crystal Dynamics of BaTiO3 near Tc

Darlington

O'Connor

1986

phys. stat. sol. (a)

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Line broadening effect in the rayleigh scattering of Mössbauer radiation on single crystals

Cited by 7 publications

References 2 publications

The Influence of Ultrasound on the Rayleigh Scattering of Mössbauer Radiation in Deformed Crystals. New Integral of Motion of the Takagi Equations

The Influence of Ultrasound on the Rayleigh Scattering of Mössbauer Radiation in Deformed Crystals. New Integral of Motion of the Takagi Equations

Application of semiconductor detector for recording the Rayleigh scattering of Mössbauer radiation

On the Crystal Dynamics of BaTiO3 near Tc

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