Fermi Surface of the Heavy-fermion Superconductor PrTi2Al20

• Kubo, Tomoya

• Matsuoka, Eiich

• Kotegawa, Hisashi

• Tou, Hideki

• Nakamura, Ai

• Aoki, Dai

• Harima, Hisatomo

• Sugawara, Hitoshi

Bibliographic Information

Other Title

• Fermi Surface of the Heavy-fermion Superconductor PrTi₂Al₂₀

Abstract

We have investigated the Fermi surface properties in the Pr-based heavy-fermion superconductor PrTi2Al20 and its reference compound LaTi2Al20 by means of the de Haas–van Alphen effect experiments and the band-structure calculation. The topology of Fermi surface in PrTi2Al20 is close to that of the reference compound LaTi2Al20, indicating a localized nature of 4f-electrons. Whereas the localized nature of 4f-electrons, we have confirmed a highly enhanced cyclotron effective mass up to 12 m0 (m0 is a rest mass of electron), which is enhanced about 5 times compared to that in LaTi2Al20.

Journal

• Journal of the Physical Society of Japan

  Journal of the Physical Society of Japan 89 (8), 084704-, 2020-08-15

  The Physical Society of Japan

Keywords

• General Physics and Astronomy

Details

• CRID: 1050856995322313984
• NII Article ID: 120006882498
• NII Book ID: AA00704814
• DOI: 10.7566/jpsj.89.084704
• ISSN: 13474073
• ISSN: 00319015
• HANDLE: 20.500.14094/90007423
• NDL BIB ID: 030573299
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I030573299
• Web Site: https://journals.jps.jp/doi/pdf/10.7566/JPSJ.89.084704
• Text Lang: en
• Article Type: journal article
• Data Source:
  • IRDB
  • NDL
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  • CiNii Articles
  • KAKEN