{"title":"Different widths of resonant lines in the Mössbuaer spectrum as the result of multidimensional Gaussian distribution","authors":"Sergey Yaroslavtsev","doi":"10.1016/j.nimb.2025.165669","DOIUrl":null,"url":null,"abstract":"<div><div>In the application of Mössbauer spectroscopy to complex materials distributions of hyperfine parameters are regularly utilized in data processing. Distributions are required due to existence of a huge number of different local positions of Fe ions with varying nearest environment. Thus, the Mössbauer spectrum should contain a lot of different corresponding subspectra. It often leads to a problematic independent determination of individual sites. In simplest case it could lead just to an increase of the width of resonant lines due to normal distribution of hyperfine parameters. However, they could appear to be correlated. In such case the shape of the spectrum will change, requiring more complex model to describe it. In this work such a model was developed and compared to already existed approaches.</div></div>","PeriodicalId":19380,"journal":{"name":"Nuclear Instruments & Methods in Physics Research Section B-beam Interactions With Materials and Atoms","volume":"563 ","pages":"Article 165669"},"PeriodicalIF":1.4000,"publicationDate":"2025-03-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Nuclear Instruments & Methods in Physics Research Section B-beam Interactions With Materials and Atoms","FirstCategoryId":"101","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0168583X2500059X","RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"INSTRUMENTS & INSTRUMENTATION","Score":null,"Total":0}
Different widths of resonant lines in the Mössbuaer spectrum as the result of multidimensional Gaussian distribution
In the application of Mössbauer spectroscopy to complex materials distributions of hyperfine parameters are regularly utilized in data processing. Distributions are required due to existence of a huge number of different local positions of Fe ions with varying nearest environment. Thus, the Mössbauer spectrum should contain a lot of different corresponding subspectra. It often leads to a problematic independent determination of individual sites. In simplest case it could lead just to an increase of the width of resonant lines due to normal distribution of hyperfine parameters. However, they could appear to be correlated. In such case the shape of the spectrum will change, requiring more complex model to describe it. In this work such a model was developed and compared to already existed approaches.
期刊介绍:
Section B of Nuclear Instruments and Methods in Physics Research covers all aspects of the interaction of energetic beams with atoms, molecules and aggregate forms of matter. This includes ion beam analysis and ion beam modification of materials as well as basic data of importance for these studies. Topics of general interest include: atomic collisions in solids, particle channelling, all aspects of collision cascades, the modification of materials by energetic beams, ion implantation, irradiation - induced changes in materials, the physics and chemistry of beam interactions and the analysis of materials by all forms of energetic radiation. Modification by ion, laser and electron beams for the study of electronic materials, metals, ceramics, insulators, polymers and other important and new materials systems are included. Related studies, such as the application of ion beam analysis to biological, archaeological and geological samples as well as applications to solve problems in planetary science are also welcome. Energetic beams of interest include atomic and molecular ions, neutrons, positrons and muons, plasmas directed at surfaces, electron and photon beams, including laser treated surfaces and studies of solids by photon radiation from rotating anodes, synchrotrons, etc. In addition, the interaction between various forms of radiation and radiation-induced deposition processes are relevant.