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  • Park AFM
    Special Modes

Scanning Thermal Microscopy (SThM)

High Spatial and Thermal Resolution Microscopy

Our SThM mode lets you easily find the local thermal conductivity of a sample by measuring heat transfer between tip and sample using a micro-fabricated probe.

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Schematic diagram of the series SThM system.

 
functional-characterization-mode

 

Temperature map of the Pole-Tip-Recession of an active hard disk slider
Scan size: 2µm
Using Probe: Diamond indentor probe
Imaged on a Park XE-Series using SThM Mode.
 

Magnetic Force Microscopy (MFM)

High Resolution and High Sensitivity Imaging of Magnetic Properties

Our MFM mode measures the magnetic variations over a sample surface by detecting the interaction between a magnetized cantilever and sample surface. The cantilever measures surface topography on the first scan, then lifts and follows either the stored surface topography (lift mode, available only in selected countries) or a constant distance (or constant height) at a fixed height above the sample surface.

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The schematics of (a) Force Range technique and (b) two pass technique and (c) corresponding

 
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(a) Topography (b) MFM Phase

HDD
Scan size: 5µm
Using Probe: PPP-MFMR
Imaged on a Park XE-series using MFM Mode.
 

Tunable Magnetic Field MFM (TM-MFM)

High Resolution and High Sensitivity Imaging of Magnetic Properties

Our TM-MFM mode measures the magnetic domain distribution with respect to magnetic field change.

 

 
tm-mfm-yig

 

YIG
Scan size: 30µm
Using Probe: PPP-MFMR
Imaged on a Park XE-series using TM-MFM Mode.
 

Chemical Force Microscopy (CFM)

CFM measures the chemical interactions between functionalized tips and sample to determine the chemical nature of surfaces and facilitate studies of chemical bonding enthalpy and surface energy. Tips are typically gold-coated and functionalized with R-SH thiols, R being the functional groups of interest such as -CH, -COOH, -NH, and -OH.

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(a) Glucose Bimolecular Force Measurement Between Glucose surface and Gox Tip

cfm-glucose-bimolecular-b

(b) Glucose Bimolecular Force Measurement Between Glucose surface and Gox-Casein Tip

 

Electrochemical Microscopy (EC-AFM, EC-STM)

In EC-STM/AFM, the nanoscale structures of electrochemical reactions on the electrode surface can be observed. Users typically perform voltammetry and corrosion experiments using an electrochemistry cell and a choice of potentiostat/galvanostat depending on the electrochemical application of interest.

DC Voltammetry
- linear scan voltammetry
- single/multiple cyclic voltammetry
- chronoamperometry
- pulse voltammetry

DC Corrosion Techniques
- potentiostatic
- galvanostatic
- potentiodynamic
- galvondynamic

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EC-AFM

electrochemical-microscopy-ec-afm-ec-stm-f2

EC-STM

 

Special modes