Susceptibility measurements in PrxLa1-xInAg 2 with Γ3 doublet ground state

Y. Sato, Y. Nakamura, H. Morodomi, T. Hasuo, Y. Inagaki, T. Kawae, H. S. Suzuki, M. Mito, T. Kitai

Research output: Contribution to journalConference article

3 Citations (Scopus)

Abstract

We have measured the susceptibility and magnetization of Pr xLa1-xInAg2 at Pr concentrations x=1 and 0.1 down to T ∼ 0.5 K by SQUID magnetometer with a home-made 3He insert. The susceptibility above T = 15 K is well reproduced by the crystal-electric-field level scheme with a non-Kramers Γ3 doublet in the ground state for each concentration, while that below T = 15 K shows a non-Fermi-liquid (NFL) behavior with - ln T-dependence at low magnetic field. With increasing magnetic field, - ln T-dependence is suppressed and - T1-2-dependence appears at H = 7 T The magnetization at T = 0.5 K increases with increasing magnetic fields up to H = 7 T, indicating that the increase of the susceptibility does not come from impurity ions. These results suggest that the quadrupolar Kondo effect is responsible for NFL behavior of the susceptibility.

Original languageEnglish
Article number032080
JournalJournal of Physics: Conference Series
Volume400
Issue numberPART 3
DOIs
Publication statusPublished - Jan 1 2012
Event26th International Conference on Low Temperature Physics, LT 2011 - Beijing, China
Duration: Aug 10 2011Aug 17 2011

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magnetic permeability
ground state
magnetic fields
magnetization
Kondo effect
inserts
liquids
magnetometers
impurities
electric fields
crystals
ions

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

Cite this

Susceptibility measurements in PrxLa1-xInAg 2 with Γ3 doublet ground state. / Sato, Y.; Nakamura, Y.; Morodomi, H.; Hasuo, T.; Inagaki, Y.; Kawae, T.; Suzuki, H. S.; Mito, M.; Kitai, T.

In: Journal of Physics: Conference Series, Vol. 400, No. PART 3, 032080, 01.01.2012.

Research output: Contribution to journalConference article

Sato, Y. ; Nakamura, Y. ; Morodomi, H. ; Hasuo, T. ; Inagaki, Y. ; Kawae, T. ; Suzuki, H. S. ; Mito, M. ; Kitai, T. / Susceptibility measurements in PrxLa1-xInAg 2 with Γ3 doublet ground state. In: Journal of Physics: Conference Series. 2012 ; Vol. 400, No. PART 3.
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AU - Sato, Y.

AU - Nakamura, Y.

AU - Morodomi, H.

AU - Hasuo, T.

AU - Inagaki, Y.

AU - Kawae, T.

AU - Suzuki, H. S.

AU - Mito, M.

AU - Kitai, T.

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N2 - We have measured the susceptibility and magnetization of Pr xLa1-xInAg2 at Pr concentrations x=1 and 0.1 down to T ∼ 0.5 K by SQUID magnetometer with a home-made 3He insert. The susceptibility above T = 15 K is well reproduced by the crystal-electric-field level scheme with a non-Kramers Γ3 doublet in the ground state for each concentration, while that below T = 15 K shows a non-Fermi-liquid (NFL) behavior with - ln T-dependence at low magnetic field. With increasing magnetic field, - ln T-dependence is suppressed and - T1-2-dependence appears at H = 7 T The magnetization at T = 0.5 K increases with increasing magnetic fields up to H = 7 T, indicating that the increase of the susceptibility does not come from impurity ions. These results suggest that the quadrupolar Kondo effect is responsible for NFL behavior of the susceptibility.

AB - We have measured the susceptibility and magnetization of Pr xLa1-xInAg2 at Pr concentrations x=1 and 0.1 down to T ∼ 0.5 K by SQUID magnetometer with a home-made 3He insert. The susceptibility above T = 15 K is well reproduced by the crystal-electric-field level scheme with a non-Kramers Γ3 doublet in the ground state for each concentration, while that below T = 15 K shows a non-Fermi-liquid (NFL) behavior with - ln T-dependence at low magnetic field. With increasing magnetic field, - ln T-dependence is suppressed and - T1-2-dependence appears at H = 7 T The magnetization at T = 0.5 K increases with increasing magnetic fields up to H = 7 T, indicating that the increase of the susceptibility does not come from impurity ions. These results suggest that the quadrupolar Kondo effect is responsible for NFL behavior of the susceptibility.

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