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A Rapid Method for Modeling a Variable Cycle Engine
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A variable probe pitch micro-Hall effect method.

Maria-Louise Witthøft1, Frederik W Østerberg2, Janusz Bogdanowicz3

  • 1DTU Nanotech, Technical University of Denmark, Building 345 East, DK-2800 Kgs. Lyngby, Denmark.

Beilstein Journal of Nanotechnology
|August 18, 2018
PubMed
Summary
This summary is machine-generated.

Micro-Hall effect (MHE) metrology accuracy depends on data analysis. Analyzing sheet resistance signals minimizes errors from electrical noise, crucial for characterizing nanoscale electronic materials.

Keywords:
Hall effectfour-point probesmetrologymobilityvariable Probe Pitch

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Area of Science:

  • Materials Science
  • Condensed Matter Physics
  • Electrical Engineering

Background:

  • Accurate characterization of electronic properties is vital for novel nanoscale electronic materials.
  • Micro-Hall effect (MHE) metrology offers rapid analysis of ultrathin films with minimal sample preparation.

Purpose of the Study:

  • To investigate how different data analysis methods impact the accuracy of extracted electronic parameters (sheet resistance, carrier mobility, Hall sheet carrier density).
  • To compare analysis based on sheet resistance versus Hall resistance signals under varying error conditions (electrode position, electrical noise).

Main Methods:

  • Theoretical analysis of electrode position errors and electrical noise effects on standard deviations of key parameters.
  • Experimental verification using data from an ultrashallow junction silicon sample.

Main Results:

  • Analysis based on sheet resistance signals yields lower standard deviations in the presence of significant electrical noise.
  • The optimal analysis method for dominant electrode position errors is dependent on experimental conditions, specifically electrode-insulating boundary distance.

Conclusions:

  • Data analysis strategy significantly influences the accuracy of Hall effect metrology for nanoscale materials.
  • Choosing the appropriate analysis method, particularly considering electrical noise and electrode placement, is critical for reliable characterization of electronic properties.