Investigation of nanoscale interactions by means of subharmonic excitation

Matteo Chiesa*, Karim Gadelrab, Marco Stefancich, Peter Armstrong, Guang Li, Tewfik Souier, Neil H. Thomson, Victor Barcons, Josep Font, Albert Verdaguer, Michael A. Phillips, Sergio Santos

*المؤلف المقابل لهذا العمل

نتاج البحث: المساهمة في مجلةArticleمراجعة النظراء

10 اقتباسات (Scopus)

ملخص

Multifrequency atomic force microscopy holds promise as a method to provide qualitative and quantitative information about samples with high spatial resolution. Here, we provide experimental evidence of the excitation of subharmonics in ambient conditions in the regions where capillary interactions are predicted to be the mechanism of excitation. We also experimentally decouple a second mechanism for subharmonic excitation that is highly independent of environmental conditions such as relative humidity. This implies that material properties could be mapped. Subharmonic excitation could lead to experimental determination of surface water affinity in the nanoscale whenever water interactions are the mechanism of excitation.

اللغة الأصليةEnglish
الصفحات (من إلى)2125-2129
عدد الصفحات5
دوريةJournal of Physical Chemistry Letters
مستوى الصوت3
رقم الإصدار16
المعرِّفات الرقمية للأشياء
حالة النشرPublished - أغسطس 16 2012
منشور خارجيًانعم

ASJC Scopus subject areas

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  • ???subjectarea.asjc.1600.1606???

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