Results 21 to 30 of about 37,056 (285)
Minimizing electrostatic interactions from piezoresponse force microscopy via capacitive excitation
Piezoresponse force microscopy (PFM) has emerged as one of the most powerful techniques to probe ferroelectric materials at the nanoscale, yet it has been increasingly recognized that piezoresponse measured by PFM is often influenced by electrostatic ...
Qingfeng Zhu +3 more
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We, for the first time, report the nanoscopic imaging study of anomalous infrared (IR) phonon enhancement of bilayer graphene, originated from the charge imbalance between the top and bottom layers, resulting in the enhancement of E1u mode of bilayer ...
Junghoon Jahng +8 more
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This paper aims to provide insight on factors affecting the bulk shear strength parameters of clay, i.e., the cohesion and internal friction as well as the effects of memory of preconsolidation pressure.
Yuan Guo, Xiong Yu
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Measurement of contact potential difference and material distribution by using an SEFM
This paper presents a method for the measurement of the contact potential difference (CPD) and material distribution on the sample surface by using a scanning electrostatic force microscope (SEFM). In SEFM, the surface profile is evaluated by applying an
Keiichiro HOSOBUCHI +4 more
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A noncontact scanning electrostatic force microscope (SEFM) for surface profile measurement is introduced, and applied to the profile measurement of insulating samples.
Shigeaki GOTO +4 more
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Triboelectric charging of melt-blown nonwoven filters with high filtration efficiency
As a novel technology to convert low-frequency energy into electric power, the triboelectric nanogenerator is a hot research topic recently. However, the nature of charge carriers and their transfer mechanisms still remain poorly understood, especially ...
Hong Wang, Yanjin Wu, Jiang Wang
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Mechanical properties of nanoscale contacts have been probed in-situ by specially developed force sensor based on a quartz tuning fork resonator (TF).
Jana ANDZANE +5 more
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Exploring Forces between Individual Colloidal Particles with the Atomic Force Microscope
Forces between individual colloidal particles can be measured with the atomic force microscope (AFM), and this technique permits the study of interactions between surfaces across aqueous solutions in great detail.
Prashant Sinha +6 more
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A study of the electrostatic force between an Electrostatic Force Microscope tip and a dielectric thin film with finite conductivity is presented. By using the Thomas-Fermi approximation and the method of image charges, we calculate the electrostatic ...
E. Castellano-Hernández, G. M. Sacha
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In this study, enhanced oil recovery (EOR) techniques—namely low salinity and nanofluid EOR—are probed at the nanometer-scale using an atomic force microscope (AFM). Mica substrates were used as model clay-rich rocks while AFM tips were coated to present
Dayo Afekare +2 more
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