Subscriber access provided by Massachusetts Institute of Technology
J. Phys. Soc. Jpn. 81, 043703 (2012) [4 Pages]
« Previous Article | Next Article »
LETTERS

Existence of Heavy Fermions in the Antiferromagnetic Phase of CeIn3

Osamu Sakai
JPSJ News Comments 9,  06 (2012).

Takuya Iizuka1, Takafumi Mizuno1, Byeong Hun Min2, Yong Seung Kwon2, and Shin-ichi Kimura1,3
+ Affiliations
1School of Physical Sciences, The Graduate University for Advanced Studies (SOKENDAI), Okazaki, Aichi 444-8585, Japan2Department of Emerging Materials Science, Daegu Gyeongbuk Institute of Science and Technology (DGIST), Daegu 711-873, Republic of Korea3UVSOR Facility, Institute for Molecular Science, Okazaki, Aichi 444-8585, Japan
Received February 16, 2012; Accepted February 23, 2012; Published March 22, 2012

We report the pressure-dependent optical conductivity spectra of the heavy-fermion (HF) compound CeIn 3 below the Néel temperature of 10 K to investigate the existence of the HF state in the antiferromagnetic (AFM) phase. The peak due to the interband transition in the hybridization gap between the conduction band and the nearly localized 4 f states ( c – f hybridization) appears at a photon energy of about 20 meV, not only in the HF regime but also in the AFM regime. Both the energy and intensity of the c – f hybridization peak continuously increase with the application of pressure from the AFM phase to the HF regime. This result suggests that c – f hybridization, as well as heavy fermions, exists even in the AFM phase of CeIn 3 .

©2012 The Physical Society of Japan
https://doi.org/10.1143/JPSJ.81.043703
KEYWORDS: CeIn3, optical conductivity, electronic structure, quantum critical point

References

  • 1 P.Gegenwart, Q.Si, and F.Steglich: Nat. Phys. 4 (2008) 186. Crossref, Google Scholar
  • 2 P.Coleman, C.Pépin, Q.Si, and R.Ramazashvili:J. Phys.: Condens. Matter 13 (2001) R723. Crossref, Google Scholar
  • 3 H.Kadowaki, Y.Tabata, M.Sato, N.Aso, S.Raymond, and S.Kawarazaki:Phys. Rev. Lett. 96 (2006) 016401. Crossref, Google Scholar
  • 4 S.Paschen, T.Lühmann, S.Wirth, P.Gegenwart, O.Trovarelli, C.Geibel, F.Steglich, P.Coleman, and Q.Si:Nature (London) 432 (2004) 881. Crossref, Google Scholar
  • 5 S.Friedemann, N.Oeschler, S.Wirth, C.Krellner, C.Geibel, F.Steglich, S.Paschen, S.Kirchner, and Q.Si: Proc. Natl. Acad. Sci. U.S.A. 107 (2010) 14547. Crossref, Google Scholar
  • 6 H.Shishido, R.Settai, H.Harima, and Y.Ōnuki:J. Phys. Soc. Jpn. 74 (2005) 1103. Link, Google Scholar
  • 7 R.Settai, T.Kubo, T.Shiromoto, D.Honda, H.Shishido, K.Sugiyama, Y.Haga, T. D.Matsuda, K.Betsuyaku, H.Harima, T. C.Kobayashi, and Y.Ōnuki:J. Phys. Soc. Jpn. 74 (2005) 3016. Link, Google Scholar
  • 8 S.Watanabe, A.Tsuruta, K.Miyake, and J.Flouquet:Phys. Rev. Lett. 100 (2008) 236401. Crossref, Google Scholar
  • 9 S.Watanabe and K.Miyake:J. Phys. Soc. Jpn. 79 (2010) 033707. Link, Google Scholar
  • 10 S.Kimura, J.Sichelschmidt, J.Ferstl, C.Krellner, C.Geibel, and F.Steglich:Phys. Rev. B 74 (2006) 132408. Crossref, Google Scholar
  • 11 S.Kimura, Y.Muro, and T.Takabatake:J. Phys. Soc. Jpn. 80 (2011) 033702. Link, Google Scholar
  • 12 H. J.Im, T.Ito, H.-D.Kim, S.Kimura, K. E.Lee, J. B.Hong, Y. S.Kwon, A.Yasui, and H.Yamagami:Phys. Rev. Lett. 100 (2008) 176402. Crossref, Google Scholar
  • 13 M.Klein, A.Nuber, H.Schwab, C.Albers, N.Tobita, M.Higashiguchi, J.Jiang, S.Fukuda, K.Tanaka, K.Shimada, M.Mulazzi, F. F.Assaad, and F.Reinert:Phys. Rev. Lett. 106 (2011) 186407. Crossref, Google Scholar
  • 14 N. D.Mathur, F. M.Grosche, S. R.Julian, I. R.Walker, D. M.Freye, R. K. W.Haselwimmer, and G. G.Lonzarich:Nature (London) 394 (1998) 39. Crossref, Google Scholar
  • 15 G.Knebel, D.Braithwaite, P. C.Canfield, G.Lapertot, and J.Flouquet:Phys. Rev. B 65 (2001) 024425. Crossref, Google Scholar
  • 16 F. M.Grosche, I. R.Walker, S. R.Julian, N. D.Mathur, D. M.Freye, M. J.Steiner, and G. G.Lonzarich:J. Phys.: Condens. Matter 13 (2001) 2845. Crossref, Google Scholar
  • 17 C. I.Lee, K. E.Lee, Y. Y.Song, H. J.Im, S.Kimura, and Y. S.Kwon: Infrared Phys. Technol. 51 (2008) 488. Crossref, Google Scholar
  • 18 S.Kimura, E.Nakamura, T.Nishi, Y.Sakurai, K.Hayashi, J.Yamazaki, and M.Katoh: Infrared Phys. Technol. 49 (2006) 147. Crossref, Google Scholar
  • 19 D. D.Ragan, R.Gustavsen, and D.Schiferl:J. Appl. Phys. 72 (1992) 5539. Crossref, Google Scholar
  • 20 T.Iizuka, S.Kimura, A.Herzog, J.Sichelschmidt, C.Krellner, C.Geibel, and F.Steglich:J. Phys. Soc. Jpn. 79 (2010) 123703. Link, Google Scholar
  • 21 M.Dressel and G.Grüner:Electrodynamics of Solids (Cambridge University Press, Cambridge, U.K., 2002). Crossref, Google Scholar
  • 22 S.Kimura, T.Iizuka, and Y. S.Kwon:J. Phys. Soc. Jpn. 78 (2009) 013710. Link, Google Scholar
  • 23 A. C.Hewson:The Kondo Problem to Heavy Fermions (Cambridge University Press, Cambridge, U.K., 1993). Crossref, Google Scholar
  • 24 S. V.Dordevic, D. N.Basov, N. R.Dilley, E. D.Bauer, and M. B.Maple:Phys. Rev. Lett. 86 (2001) 684. Crossref, Google Scholar
  • 25 F.Marabelli and P.Wachter:Phys. Rev. B 42 (1990) 3307. Crossref, Google Scholar
  • 26 Y. S.Kwon, J. B.Hong, H. J.Im, T.Nishi, and S.Kimura:Physica B 378–380 (2006) 823. Crossref, Google Scholar
  • 27 A.Sacchetti, E.Arcangeletti, A.Perucchi, L.Baldassarre, P.Postorino, S.Lupi, N.Ru, I. R.Fisher, and L.Degiorgi:Phys. Rev. Lett. 98 (2007) 026401. Crossref, Google Scholar
  • 28 S.Kawasaki, T.Mito, G.-q.Zheng, C.Thessieu, Y.Kawasaki, K.Ishida, Y.Kitaoka, T.Muramatsu, T. C.Kobayashi, D.Aoki, S.Araki, Y.Haga, R.Settai, and Y.Ōnuki:Phys. Rev. B 65 (2001) 020504. Crossref, Google Scholar
« Previous Article | Next Article »
JPS | Copyright & Permission | Privacy Policy | Contact | 
Copyright © 2024 The Physical Society of Japan