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On the nature of the carriers in ferromagnetic FeSe
- Source :
- Applied Physics Letters. 90:112105
- Publication Year :
- 2007
- Publisher :
- AIP Publishing, 2007.
-
Abstract
- The optical and electrical properties of FeSe thin films are studied by both optical absorption and Hall measurements, which suggest that ferromagnetic FeSe is a metal instead of a semiconductor. No absorption gap is observed in the whole spectrum range from far infrared to ultraviolet. Temperature dependent transport measurement indicates that FeSe has a resistivity about 10−3Ωcm. It is also found that there is a transition from n-type conductivity at low temperatures to p-type conductivity at higher temperatures in FeSe, which is attributed to the two-carrier transport nature and the thermal activation of localized carriers in the thin film.
- Subjects :
- Materials science
Physics and Astronomy (miscellaneous)
Condensed matter physics
business.industry
Conductivity
Condensed Matter::Materials Science
Semiconductor
Ferromagnetism
Far infrared
Electrical resistivity and conductivity
Hall effect
Thin film
Absorption (electromagnetic radiation)
business
Subjects
Details
- ISSN :
- 10773118 and 00036951
- Volume :
- 90
- Database :
- OpenAIRE
- Journal :
- Applied Physics Letters
- Accession number :
- edsair.doi...........06c5df45f5a125bcba972b935b7791ba