| Development of a magnetic quartz crystal microbalance. | |
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MedLine Citation:
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PMID: 17614642 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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A new technique for measurement of magnetic properties of materials is demonstrated. It can be used for the measurement of thin magnetic films during their chemical modification. The resonance frequency of a quartz crystal microbalance (QCM) with conducting polymer (polyaniline) suspension in poly(ethylene glycol) was observed to increase with increasing the externally applied uniform dc magnetic field. Slowly sweeping the magnetic field between 0 and 3.1 T results in a frequency-field response curve. Chemical doping was done by exposing the polyaniline-emeraldine base film to HCl vapor. The change in population of free spins is reflected in increased frequency-field curve magnitude after HCl doping. Two working hypotheses explaining this observation are offered to explain how frequency of QCM with deposited magnetic film shifts with increasing intensity of the magnetic field. |
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Authors:
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George Y Yu; William D Hunt; Mira Josowicz; Jiri Janata |
Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: The Review of scientific instruments Volume: 78 ISSN: 0034-6748 ISO Abbreviation: Rev Sci Instrum Publication Date: 2007 Jun |
Date Detail:
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Created Date: 2007-07-06 Completed Date: 2007-09-05 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 0405571 Medline TA: Rev Sci Instrum Country: United States |
Other Details:
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Languages: eng Pagination: 065111 Citation Subset: IM |
Affiliation:
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School of Electrical and Computer Engineering, Georgia Institute of Technology, Atlanta, GA 30332-0400, USA. |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Equipment Design Equipment Failure Analysis Magnetics / instrumentation* Materials Testing / instrumentation*, methods Membranes, Artificial* Miniaturization Quartz* Reproducibility of Results Sensitivity and Specificity Stress, Mechanical Transducers* |
| Chemical | |
Reg. No./Substance:
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0/Membranes, Artificial; 14808-60-7/Quartz |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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