Metal-insulator transition under high pressure in PrFe4P 12

Hiroyuki Hidaka, Ikuma Ando, Hisashi Kotegawa, Tatsuo Kobayashi, Hisatomo Harima, Miki Kobayashi, Hitoshi Sugawara, Hideyuki Sato

Research output: Contribution to journal › Article

1 Citation (Scopus)

Abstract

We have studied the electrical resistivity in a skutterudite compound PrFe4P12 under high pressure. An antiferro-quadrupolar ordering temperature TQ decreases monotonously with increasing pressure up to 2.4 GPa. Above 2.4 GPa, the metal-insulator (M-I) transition appears. By applying magnetic field, this M-I transition is suppressed easily and heavy-fermion state is realized. The observed Kondo effect and the field-induced heavy-fermion state at high pressure suggest that the quadrupolar interactions of the f electrons of Pr3+ survive even in the insulator phase.

Original languageEnglish
Pages (from-to)886-888
Number of pages3
JournalPhysica B: Condensed Matter
Volume359-361
Issue numberSPEC. ISS.
DOIs
Publication statusPublished - Apr 30 2005

Fingerprint

Metal insulator transition
Fermions
insulators
fermions
metals
Kondo effect
Magnetic fields
electrical resistivity
Electrons
magnetic fields
electrons
interactions
Temperature
temperature

Keywords

  • Filled skutterudite
  • Metal-insulator transition

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics

Cite this

Hidaka, H., Ando, I., Kotegawa, H., Kobayashi, T., Harima, H., Kobayashi, M., ... Sato, H. (2005). Metal-insulator transition under high pressure in PrFe4P 12 Physica B: Condensed Matter, 359-361(SPEC. ISS.), 886-888. https://doi.org/10.1016/j.physb.2005.01.334

Metal-insulator transition under high pressure in PrFe4P 12 . / Hidaka, Hiroyuki; Ando, Ikuma; Kotegawa, Hisashi; Kobayashi, Tatsuo; Harima, Hisatomo; Kobayashi, Miki; Sugawara, Hitoshi; Sato, Hideyuki.

In: Physica B: Condensed Matter, Vol. 359-361, No. SPEC. ISS., 30.04.2005, p. 886-888.

Research output: Contribution to journal › Article

Hidaka, H, Ando, I, Kotegawa, H, Kobayashi, T, Harima, H, Kobayashi, M, Sugawara, H & Sato, H 2005, 'Metal-insulator transition under high pressure in PrFe4P 12 ', Physica B: Condensed Matter, vol. 359-361, no. SPEC. ISS., pp. 886-888. https://doi.org/10.1016/j.physb.2005.01.334
Hidaka H, Ando I, Kotegawa H, Kobayashi T, Harima H, Kobayashi M et al. Metal-insulator transition under high pressure in PrFe4P 12 Physica B: Condensed Matter. 2005 Apr 30;359-361(SPEC. ISS.):886-888. https://doi.org/10.1016/j.physb.2005.01.334
Hidaka, Hiroyuki ; Ando, Ikuma ; Kotegawa, Hisashi ; Kobayashi, Tatsuo ; Harima, Hisatomo ; Kobayashi, Miki ; Sugawara, Hitoshi ; Sato, Hideyuki. / Metal-insulator transition under high pressure in PrFe4P 12 In: Physica B: Condensed Matter. 2005 ; Vol. 359-361, No. SPEC. ISS. pp. 886-888.
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AB - We have studied the electrical resistivity in a skutterudite compound PrFe4P12 under high pressure. An antiferro-quadrupolar ordering temperature TQ decreases monotonously with increasing pressure up to 2.4 GPa. Above 2.4 GPa, the metal-insulator (M-I) transition appears. By applying magnetic field, this M-I transition is suppressed easily and heavy-fermion state is realized. The observed Kondo effect and the field-induced heavy-fermion state at high pressure suggest that the quadrupolar interactions of the f electrons of Pr3+ survive even in the insulator phase.

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