| Issue |
EPL
Volume 84, Number 4, November 2008
|
|
|---|---|---|
| Article Number | 47007 | |
| Number of page(s) | 6 | |
| Section | Condensed Matter: Electronic Structure, Electrical, Magnetic and Optical Properties | |
| DOI | https://doi.org/10.1209/0295-5075/84/47007 | |
| Published online | 17 November 2008 | |
Negative temperature coefficient of resistance in a crystalline compound
1
S. N. Bose National Centre for Basic Sciences - Block-JD, Salt Lake, Kolkata-700098, India
2
ECMP Division, Saha Institute of Nuclear Physics - 1/AF, Bidhannagar, Kolkata-700064, India
3
Indian Institute of Science Education and Research - Block-HC, Kolkata-700106, India
4
Institute of Technology, Banaras Hindu University - Varanasi-221005, India
Corresponding author: chandan.mazumdar@saha.ac.in
Received:
7
June
2008
Accepted:
9
October
2008
Resistivity measurements and temperature-dependent X-ray structural analyses are reported for the crystalline compounds GdPd3BxC
. We show that a controlled tuning of the temperature coefficient of resistance (TCR) can be done by modifying the structural parameters and chemical environment of the compounds. We have achieved the result of negative TCR in an ordered, non-Kondo crystalline compound. Electronic-structure calculations have been carried out to elucidate some of our observations.
PACS: 72.15.Eb – Electrical and thermal conduction in crystalline metals and alloys / 71.20.Eh – Electron density of states and band structure of crystalline solids: Rare earth metals and alloys / 61.05.cp – X-ray diffraction
© EPLA, 2008
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