Published March 3, 2003
| Published
Journal Article
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Giant magnetothermopower associated with large magnetoresistance in Ag_(2−δ)Te
- Creators
- Sun, Y.
- Salamon, M. B.
- Lee, M.
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Rosenbaum, T. F.
Abstract
We have probed the temperature and magnetic-field dependence of the thermopower and resistance of a p-type silverchalcogenide,Ag_(2−δ)Te. The application of a magnetic field causes not only a large magnetoresistance but also a giant magnetothermopower effect. The maximum change of thermopower is as high as 470 μV/K in a 7 T magnetic field. Both the magnetoresistance and the magnetothermopower show a pronounced peak and nearly linear behavior near the sign change of the thermopower. Bandcrossing and quantum confinement due to disorder appear to play key roles in the heightened response to field.
Additional Information
© 2003 American Institute of Physics. (Received 2 December 2002; accepted 13 January 2003) The authors are grateful to Tuson Park for help in the thermopower measurements. The work at University of Illinois was partially supported by NSF Grant No. EIA-0121568. The work at the University of Chicago was supported by US Department of Energy Grant No. DE-FG02-99ER45789.Attached Files
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Additional details
- Alternative title
- Giant magnetothermopower associated with large magnetoresistance in Ag2−δTe
- Eprint ID
- 46959
- Resolver ID
- CaltechAUTHORS:20140707-163029363
- NSF
- EIA-0121568
- Department of Energy (DOE)
- DE-FG02-99ER45789
- Created
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2014-07-08Created from EPrint's datestamp field
- Updated
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2021-11-10Created from EPrint's last_modified field