Two-Dimensional Imaging of Giant Magnetoresistance with Improved Sensitivity

R. Armstrong; S. M. Stirk; R. T. Mennicke; J. A. D. Matthew; T. Stanton; A. F. Lee; S. M. Thompson

doi:10.1109/TMAG.2008.2002599

Two-Dimensional Imaging of Giant Magnetoresistance with Improved Sensitivity

R. Armstrong, S. M. Stirk, R. T. Mennicke, J. A. D. Matthew, T. Stanton, A. F. Lee, S. M. Thompson

Research output: Contribution to journal › Article › peer-review

Abstract

Two-dimensional images of giant magnetoresistance (GMR) using an infrared (IR) camera in the 8-12 mu m wavelength regime are presented. Remote imaging of GMR involves the use of an IR camera to remotely sense changes in the emissivity of a thin film when a magnetic field is applied through a change in effective temperature, which is shown to be approximately linearly related to the GMR. Operating in the longer wavelength regime offers advantages in the theoretical connection between emissivity and GMR and also in the matching of the peak wavelength of the radiated flux with sample temperature. The GMR images obtained at 8-12 mu m demonstrate an improvement in the correlation between GMR and emissivity change over previous work performed at 3-5 mu m.

Original language	English
Pages (from-to)	2632-2635
Number of pages	4
Journal	IEEE Transactions on Magnetics
Volume	44
Issue number	11
DOIs	https://doi.org/10.1109/TMAG.2008.2002599
Publication status	Published - Nov 2008

Access to Document

10.1109/TMAG.2008.2002599

http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=4717654

Cite this

@article{f8a348ef71d24dc6ad37cab8752df4a4,

title = "Two-Dimensional Imaging of Giant Magnetoresistance with Improved Sensitivity",

abstract = "Two-dimensional images of giant magnetoresistance (GMR) using an infrared (IR) camera in the 8-12 mu m wavelength regime are presented. Remote imaging of GMR involves the use of an IR camera to remotely sense changes in the emissivity of a thin film when a magnetic field is applied through a change in effective temperature, which is shown to be approximately linearly related to the GMR. Operating in the longer wavelength regime offers advantages in the theoretical connection between emissivity and GMR and also in the matching of the peak wavelength of the radiated flux with sample temperature. The GMR images obtained at 8-12 mu m demonstrate an improvement in the correlation between GMR and emissivity change over previous work performed at 3-5 mu m.",

author = "R. Armstrong and Stirk, {S. M.} and Mennicke, {R. T.} and Matthew, {J. A. D.} and T. Stanton and Lee, {A. F.} and Thompson, {S. M.}",

year = "2008",

month = nov,

doi = "10.1109/TMAG.2008.2002599",

language = "English",

volume = "44",

pages = "2632--2635",

journal = "IEEE Transactions on Magnetics",

issn = "0018-9464",

publisher = "IEEE",

number = "11",

}

TY - JOUR

T1 - Two-Dimensional Imaging of Giant Magnetoresistance with Improved Sensitivity

AU - Armstrong, R.

AU - Stirk, S. M.

AU - Mennicke, R. T.

AU - Matthew, J. A. D.

AU - Stanton, T.

AU - Lee, A. F.

AU - Thompson, S. M.

PY - 2008/11

Y1 - 2008/11

N2 - Two-dimensional images of giant magnetoresistance (GMR) using an infrared (IR) camera in the 8-12 mu m wavelength regime are presented. Remote imaging of GMR involves the use of an IR camera to remotely sense changes in the emissivity of a thin film when a magnetic field is applied through a change in effective temperature, which is shown to be approximately linearly related to the GMR. Operating in the longer wavelength regime offers advantages in the theoretical connection between emissivity and GMR and also in the matching of the peak wavelength of the radiated flux with sample temperature. The GMR images obtained at 8-12 mu m demonstrate an improvement in the correlation between GMR and emissivity change over previous work performed at 3-5 mu m.

AB - Two-dimensional images of giant magnetoresistance (GMR) using an infrared (IR) camera in the 8-12 mu m wavelength regime are presented. Remote imaging of GMR involves the use of an IR camera to remotely sense changes in the emissivity of a thin film when a magnetic field is applied through a change in effective temperature, which is shown to be approximately linearly related to the GMR. Operating in the longer wavelength regime offers advantages in the theoretical connection between emissivity and GMR and also in the matching of the peak wavelength of the radiated flux with sample temperature. The GMR images obtained at 8-12 mu m demonstrate an improvement in the correlation between GMR and emissivity change over previous work performed at 3-5 mu m.

UR - http://www.scopus.com/inward/record.url?scp=77955111529&partnerID=8YFLogxK

U2 - 10.1109/TMAG.2008.2002599

DO - 10.1109/TMAG.2008.2002599

M3 - Article

SN - 0018-9464

VL - 44

SP - 2632

EP - 2635

JO - IEEE Transactions on Magnetics

JF - IEEE Transactions on Magnetics

IS - 11

ER -

Two-Dimensional Imaging of Giant Magnetoresistance with Improved Sensitivity

Abstract

Access to Document

Other files and links

Cite this