TY - JOUR
T1 - Exotic heavy-fermion state in the filled skutterudite (formula presented) uncovered by the de Haas-van Alphen effect
AU - Sugawara, H.
AU - Matsuda, T. D.
AU - Abe, K.
AU - Aoki, Y.
AU - Sato, H.
AU - Nojiri, S.
AU - Inada, Y.
AU - Settai, R.
AU - Ōnuki, Y.
N1 - Copyright:
Copyright 2017 Elsevier B.V., All rights reserved.
PY - 2002
Y1 - 2002
N2 - We report the de Haas-van Alphen (dHvA) experiment on the filled skutterudite (formula presented) exhibiting apparent Kondo-like behaviors in the transport and thermal properties. We have found enormously enhanced cyclotron effective mass (formula presented) in the high field phase, which indicates that (formula presented) is the first Pr compound in which really heavy mass has been unambiguously confirmed. Also in the low field nonmagnetic ordered phase (LOP), we observed the dHvA branch with (formula presented) that is quite heavy taking into account its small Fermi surface volume (0.15% of the Brillouin zone size). The insensitivity of mass in LOP against the magnetic field suggests that the quadrupolar interaction plays a main role both in the mass renormalization and the LOP formation.
AB - We report the de Haas-van Alphen (dHvA) experiment on the filled skutterudite (formula presented) exhibiting apparent Kondo-like behaviors in the transport and thermal properties. We have found enormously enhanced cyclotron effective mass (formula presented) in the high field phase, which indicates that (formula presented) is the first Pr compound in which really heavy mass has been unambiguously confirmed. Also in the low field nonmagnetic ordered phase (LOP), we observed the dHvA branch with (formula presented) that is quite heavy taking into account its small Fermi surface volume (0.15% of the Brillouin zone size). The insensitivity of mass in LOP against the magnetic field suggests that the quadrupolar interaction plays a main role both in the mass renormalization and the LOP formation.
UR - http://www.scopus.com/inward/record.url?scp=85038288498&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85038288498&partnerID=8YFLogxK
U2 - 10.1103/PhysRevB.66.134411
DO - 10.1103/PhysRevB.66.134411
M3 - Article
AN - SCOPUS:85038288498
SN - 1098-0121
VL - 66
SP - 1
EP - 5
JO - Physical Review B - Condensed Matter and Materials Physics
JF - Physical Review B - Condensed Matter and Materials Physics
IS - 13
ER -