Electrical resistivity in SmCoIn5 under high pressure

Masahito Koeda, Masato Hedo, Tetsuya Fujiwara, Yoshiya Uwatoko, Tomoko Sadamasa, Yoshihiko Inada

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

SmCoIn5 crystallizes in the tetragonal HoCoGa5 type structure. This type of crystal structure have attracted much attention because new heavy-fermion superconductivity with very high superconducting transition temperature Tc=18.5 K was discovered in PuCoGa5. It is expected that Sm has a similar ground state to Pu compounds. Thus we have measured the electrical resistivity on a single crystal of SmCoIn5 using a cubic anvil pressure cell at temperature 2-300 K under high pressure from 2 to 8 GPa. The value of TN that was 11.9 K at ambient pressure in SmCoIn5 increased to 13.2 K at P=2 GPa,. Above 2 GPa, It decreased monotonously with increasing pressure and was 12.6 K at 8 GPa. It may be thought that the 4f electrons in SmCoIn5 are more localized than 5f electrons in PuCoGa5.

Original languageEnglish
Pages (from-to)62-63
Number of pages2
JournalJournal of the Physical Society of Japan
Volume76
Issue numberSUPPL. A
Publication statusPublished - 2007

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electrical resistivity
anvils
electrons
superconductivity
fermions
transition temperature
crystal structure
ground state
single crystals
cells
temperature

Keywords

  • Electrical resistivity
  • Pressure effects
  • SmCoIn

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Koeda, M., Hedo, M., Fujiwara, T., Uwatoko, Y., Sadamasa, T., & Inada, Y. (2007). Electrical resistivity in SmCoIn5 under high pressure. Journal of the Physical Society of Japan, 76(SUPPL. A), 62-63.

Electrical resistivity in SmCoIn5 under high pressure. / Koeda, Masahito; Hedo, Masato; Fujiwara, Tetsuya; Uwatoko, Yoshiya; Sadamasa, Tomoko; Inada, Yoshihiko.

In: Journal of the Physical Society of Japan, Vol. 76, No. SUPPL. A, 2007, p. 62-63.

Research output: Contribution to journalArticle

Koeda, M, Hedo, M, Fujiwara, T, Uwatoko, Y, Sadamasa, T & Inada, Y 2007, 'Electrical resistivity in SmCoIn5 under high pressure', Journal of the Physical Society of Japan, vol. 76, no. SUPPL. A, pp. 62-63.
Koeda M, Hedo M, Fujiwara T, Uwatoko Y, Sadamasa T, Inada Y. Electrical resistivity in SmCoIn5 under high pressure. Journal of the Physical Society of Japan. 2007;76(SUPPL. A):62-63.
Koeda, Masahito ; Hedo, Masato ; Fujiwara, Tetsuya ; Uwatoko, Yoshiya ; Sadamasa, Tomoko ; Inada, Yoshihiko. / Electrical resistivity in SmCoIn5 under high pressure. In: Journal of the Physical Society of Japan. 2007 ; Vol. 76, No. SUPPL. A. pp. 62-63.
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