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Anomalous Nernst Effect in Flexible Co-Based Amorphous Ribbons.

Marcio A Correa1,2, Armando Ferreira2,3, Arthur L R Souza1

  • 1Departamento de Física, Universidade Federal do Rio Grande do Norte, Natal 59078-900, RN, Brazil.

Sensors (Basel, Switzerland)
|February 11, 2023
PubMed
Summary
This summary is machine-generated.

Flexible Fe3Co67Cr3Si15B12 ribbons exhibit excellent corrosion stability and promising thermomagnetic properties for sensor applications. These soft magnetic materials show potential for use in multifunctional devices and magnetic field-specialized sensors.

Keywords:
anomalous Nernst effectco-based amorphous ribbonflexible sensorsmagnetic propertiesmagnetic sensorsmagnetization process

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Area of Science:

  • Materials Science
  • Condensed Matter Physics
  • Nanotechnology

Background:

  • Rapid quenching technique enables production of flexible Fe3Co67Cr3Si15B12 ribbons.
  • These ribbons possess excellent corrosion stability, a crucial factor for practical applications.

Purpose of the Study:

  • To investigate the structural, magnetic, and thermomagnetic properties of Fe3Co67Cr3Si15B12 ribbons.
  • To evaluate the impact of stress annealing on these properties.
  • To explore the potential of these materials for sensor applications.

Main Methods:

  • Rapid quenching for ribbon fabrication.
  • X-ray diffraction for structural characterization.
  • Inductive technique and vibrating sample magnetometry for static magnetic properties.
  • Anomalous Nernst Effect measurements for thermomagnetic properties.

Main Results:

  • As-quenched and stress-annealed ribbons showed distinct structural and magnetic characteristics.
  • Thermomagnetic curves via Anomalous Nernst Effect demonstrated a linear response, consistent with magnetization results.
  • Anomalous Nernst Effect coefficient values of 2.66μV/K (as-quenched) and 1.93μV/K (annealed) were obtained.

Conclusions:

  • The Fe3Co67Cr3Si15B12 ribbons exhibit a combination of flexibility, soft magnetic behavior, and linear thermomagnetic response.
  • These properties make them promising for probing curved surfaces and developing multifunctional devices.
  • Potential applications include specialized magnetic field sensors.