Antonín Jaroš , Johann Toyfl , Andrea Pupić , Benjamin Czasch , Giovanni Boero , Isobel C. Bicket , Philipp Haslinger
{"title":"Electron spin resonance spectroscopy in a transmission electron microscope","authors":"Antonín Jaroš , Johann Toyfl , Andrea Pupić , Benjamin Czasch , Giovanni Boero , Isobel C. Bicket , Philipp Haslinger","doi":"10.1016/j.ultramic.2025.114224","DOIUrl":null,"url":null,"abstract":"<div><div>Coherent spin resonance methods such as nuclear magnetic resonance (NMR) and electron spin resonance (ESR) spectroscopy have led to spectrally highly sensitive, non-invasive quantum imaging techniques with groundbreaking applications in fields such as medicine, biology, and physics. Meanwhile, transmission electron microscopy (TEM) offers detailed investigations with sub-atomic resolution, but often inflicts significant radiation damage. Here we exploit synergies and report on an integration of ESR spectroscopy in a TEM. Our miniaturized ESR setup, optimized for microscopic sample sizes, is implemented on a standard TEM sample holder and leverages the strong magnetic field of the TEM polepiece to align and energetically separate spin states. This integration will facilitate <em>in situ</em> studies of spin systems and their dynamics, quantum materials, radicals, electrochemical reactions, and radiation damage — properties that have, until now, been difficult to access using conventional electron microscopic tools. Moreover, this development marks a significant technological advancement towards microwave-driven quantum spin studies with a highly controlled electron probe at the nanoscale.</div></div>","PeriodicalId":23439,"journal":{"name":"Ultramicroscopy","volume":"278 ","pages":"Article 114224"},"PeriodicalIF":2.0000,"publicationDate":"2025-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Ultramicroscopy","FirstCategoryId":"5","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0304399125001226","RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"MICROSCOPY","Score":null,"Total":0}
引用次数: 0
Abstract
Coherent spin resonance methods such as nuclear magnetic resonance (NMR) and electron spin resonance (ESR) spectroscopy have led to spectrally highly sensitive, non-invasive quantum imaging techniques with groundbreaking applications in fields such as medicine, biology, and physics. Meanwhile, transmission electron microscopy (TEM) offers detailed investigations with sub-atomic resolution, but often inflicts significant radiation damage. Here we exploit synergies and report on an integration of ESR spectroscopy in a TEM. Our miniaturized ESR setup, optimized for microscopic sample sizes, is implemented on a standard TEM sample holder and leverages the strong magnetic field of the TEM polepiece to align and energetically separate spin states. This integration will facilitate in situ studies of spin systems and their dynamics, quantum materials, radicals, electrochemical reactions, and radiation damage — properties that have, until now, been difficult to access using conventional electron microscopic tools. Moreover, this development marks a significant technological advancement towards microwave-driven quantum spin studies with a highly controlled electron probe at the nanoscale.
期刊介绍:
Ultramicroscopy is an established journal that provides a forum for the publication of original research papers, invited reviews and rapid communications. The scope of Ultramicroscopy is to describe advances in instrumentation, methods and theory related to all modes of microscopical imaging, diffraction and spectroscopy in the life and physical sciences.