Results 51 to 60 of about 2,111,321 (211)

Large Negative Electronic Compressibility of LaAlO3-SrTiO3 Interfaces with Ultrathin LaAlO3 Layers

open access: yes, 2012
A two-dimensional electron liquid is formed at the n-type interface between SrTiO3 and LaAlO3. Here we report on Kelvin probe microscopy measurements of the electronic compressibility of this electron system. The electronic compressibility is found to be
Breitschaft, M.   +3 more
core   +1 more source

The role of the Hall effect in the global structure and dynamics of planetary magnetospheres: Ganymede as a case study [PDF]

open access: yes, 2015
We present high resolution Hall MHD simulations of Ganymede's magnetosphere demonstrating that Hall electric fields in ion-scale magnetic reconnection layers have significant global effects not captured in resistive MHD simulations. Consistent with local
Collinson, Glyn   +3 more
core   +1 more source

High spatial resolution Kelvin probe force microscopy with coaxial probes [PDF]

open access: yesNanotechnology, 2012
Kelvin probe force microscopy (KPFM) is a widely used technique to measure the local contact potential difference (CPD) between an AFM probe and the sample surface via the electrostatic force. The spatial resolution of KPFM is intrinsically limited by the long range of the electrostatic interaction, which includes contributions from the macroscopic ...
Brown, Keith A.   +2 more
openaire   +3 more sources

Passive film characterisation of duplex stainless steel using scanning Kelvin probe force microscopy in combination with electrochemical measurements

open access: yesnpj Materials Degradation, 2019
The characterisation of passive oxide films on heterogeneous microstructures is needed to assess local degradation (corrosion, cracking) in aggressive environments.
C. Örnek, C. Leygraf, J. Pan
semanticscholar   +1 more source

Numerical analysis of single-point spectroscopy curves used in photo-carrier dynamics measurements by Kelvin probe force microscopy under frequency-modulated excitation

open access: yesBeilstein Journal of Nanotechnology, 2018
In recent years, the investigation of the complex interplay between the nanostructure and photo-transport mechanisms has become of crucial importance for the development of many emerging photovoltaic technologies.
Pablo A. Fernández Garrillo   +2 more
doaj   +1 more source

An upper bound for the magnetic force gradient in graphite

open access: yes, 2010
Cervenka et al. have recently reported ferromagnetism along graphite steps. We present Magnetic Force microscopy (MFM) data showing that the signal along the steps is independent of an external magnetic field.
Agustina Asenjo   +5 more
core   +1 more source

MATHEMATICAL MODELING OF A DISTANCE DEPENDENCE OF A SCANNING KELVIN PROBE LATERAL RESOLUTION

open access: yesПриборы и методы измерений, 2015
A mathematical model of cylindrical shaped plane-ended scanning Kelvin probe output signal is proposed considering the case of an infinite plane sample's surface with local defects represented by dot charges.
A. K. Tyavlovsky
doaj  

Effects of Illumination Direction on the Surface Potential of CH3NH3PbI3 Perovskite Films Probed by Kelvin Probe Force Microscopy.

open access: yesACS Applied Materials and Interfaces, 2019
The development of organic-inorganic hybrid perovskite solar cells requires critical understanding in the charge-carrier behaviors in the perovskite light absorbers and devices.
Chao Yang   +5 more
semanticscholar   +1 more source

Thin NaCl films on silver (001): island growth and work function

open access: yesNew Journal of Physics, 2012
The surface work function (WF) and substrate temperature dependence of the NaCl thin-film growth on Ag(001) have been studied by noncontact atomic force microscopy and Kelvin probe force microscopy.
Gregory Cabailh   +2 more
doaj   +1 more source

Resolving surface potential variation in Ge/MoS2 heterostructures with Kelvin probe force microscopy

open access: yesAIP Advances, 2021
In this work, we employ an atomic force microscopy-based technique, Kelvin probe force microscopy, to analyze heterogeneities of four different 2D/3D Ge/MoS2 heterostructures with Ge chemical vapor deposition (CVD) time.
Sanguk Woo   +6 more
doaj   +1 more source

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