Crossref journal-article
IOP Publishing
Japanese Journal of Applied Physics (266)
Abstract

A negative temperature coefficient of electrical resistivity (TCR) has been observed in Ti50-XNi50+X(at.%;X=1.5, 2.0, 2.5, 3.0, 3.5, 4.0, 4.5) in the temperature range between 20 and 350 K. The resistivity vs temperature curve has no hysteresis and the relative resistivity at 20 K (ρ20 K/ρ350 K) decreases with increasing Ni content. X-ray diffraction and magnetic susceptibility measurements show that a negative TCR is not caused by structural phase transition nor by magnetic transition. The Debye temperature of Ti48Ni52, obtained from the analysis of specific heat measurements, is quite low (217 K) and its spin relaxation process has a time duration between 400 µs and 20 ms, suggesting that some lattice instability exists. Based on these results, the origin of a negative TCR is discussed.

Bibliography

Kakeshita, T., Fukuda, T., Tetsukawa, H., Saburi, T., Kindo, K., Takeuchi, T., Honda, M., Endo, S., Taniguchi, T., & Miyako, Y. (1998). Negative Temperature Coefficient of Electrical Resistivity in B2-Type Ti–Ni Alloys. Japanese Journal of Applied Physics, 37(5R), 2535.

Authors 10
  1. Tomoyuki Kakeshita (first)
  2. Takashi Fukuda (additional)
  3. Hiroki Tetsukawa (additional)
  4. Toshio Saburi (additional)
  5. Koichi Kindo (additional)
  6. Tetsuya Takeuchi (additional)
  7. Makoto Honda (additional)
  8. Shoichi Endo (additional)
  9. Toshifumi Taniguchi (additional)
  10. Yoshihito Miyako (additional)
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Dates
Type When
Created 22 years, 10 months ago (Oct. 1, 2002, 6:45 p.m.)
Deposited 2 years, 4 months ago (April 23, 2023, 1:05 p.m.)
Indexed 1 month ago (July 25, 2025, 6:41 a.m.)
Issued 27 years, 3 months ago (May 1, 1998)
Published 27 years, 3 months ago (May 1, 1998)
Published Print 27 years, 3 months ago (May 1, 1998)
Funders 0

None

@article{Kakeshita_1998, title={Negative Temperature Coefficient of Electrical Resistivity in B2-Type Ti–Ni Alloys}, volume={37}, ISSN={1347-4065}, url={http://dx.doi.org/10.1143/jjap.37.2535}, DOI={10.1143/jjap.37.2535}, number={5R}, journal={Japanese Journal of Applied Physics}, publisher={IOP Publishing}, author={Kakeshita, Tomoyuki and Fukuda, Takashi and Tetsukawa, Hiroki and Saburi, Toshio and Kindo, Koichi and Takeuchi, Tetsuya and Honda, Makoto and Endo, Shoichi and Taniguchi, Toshifumi and Miyako, Yoshihito}, year={1998}, month=may, pages={2535} }