Lamb-Mössbauer factor determination by resonant Mössbauer spectrometer

• Published in: Physics letters. A Vol. 442; p. 128195
• Main Authors: Procházka, Vít, Novák, Petr, Stejskal, Aleš, Dudka, Michal, Vrba, Vlastimil
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 05-08-2022
• Subjects: Alpha-iron; Lamb-Mössbauer factor; Mössbauer spectroscopy; Resonant detector; Lamb-Mössbauer factor; Resonant detector; Alpha-iron; Mössbauer spectroscopy
• ISSN: 0375-9601; 1873-2429
• DOI: 10.1016/j.physleta.2022.128195

We describe an efficient method for the determination of the Lamb-Mössbauer factor using a resonant Mössbauer spectrometer. It is based on a synchronous movement of the source and the resonant detector while the absorber is static. Measurements in such an arrangement allow to determine not only the Lamb-Mössbauer factor but also the electronic absorption and hyperfine parameters. The method is demonstrated on the measurement of α-iron absorber, where the Lamb-Mössbauer factor was determined to be 0.799±0.003.
•Determination of Lamb-Mössbauer factor from one measurement.•Separation of recoil and recoilless photons.•Determination of electronic absorption of recoilless photons.•Easy optimization of sample thickness for transmission Mössbauer thickness.•Tool for investigation of crystal-lattice dynamic under various physical conditions, i.e. temperature and magnetic field.