Anomalous frequency and temperature-dependent scattering and Hund's coupling in the almost quantum critical heavy-fermion system
Abstract
We present THz range optical conductivity data of a thin film of the near quantum critical heavy-fermion compound CeFe 2Ge 2. Our complex conductivity measurements find a deviation from conventional Drude-like transport in a temperature range previously reported to exhibit unconventional behavior. We calculate the frequency-dependent effective mass and scattering rate using an extended Drude model analysis. We find the inelastic scattering rate can be described by a temperature-dependent power law ω n(T), where n(T) approaches ~1.0 ± 0.2 at 1.5 K. This is compared to the ρ ~ T 1.5 behavior claimed in dc resistivity data and the ρ ~ T 2 expected from Fermi-liquid theory. In addition to a low-temperature mass renormalization, we find an anomalous mass renormalization that persists to high temperature. Here, we attribute this to a Hund's coupling in the Fe states in a manner similar to that recently proposed in the ferropnictides. CeFe 2Ge 2 appears to be a very interesting system where one may study the interplay between the usual 4f lattice Kondo effect and this Hund's enhanced Kondo effect in the 3d states.
- Authors:
-
- Johns Hopkins Univ., Baltimore, MD (United States)
- Univ. of Illinois at Urbana-Champaign, IL (United States)
- Publication Date:
- Research Org.:
- Energy Frontier Research Centers (EFRC) (United States). Center for Emergent Superconductivity (CES)
- Sponsoring Org.:
- USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22); Gordon and Betty Moore Foundation
- OSTI Identifier:
- 1371215
- Alternate Identifier(s):
- OSTI ID: 1236894
- Grant/Contract Number:
- AC02-98CH10886; GBMF2628
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Physical Review B
- Additional Journal Information:
- Journal Volume: 93; Journal Issue: 8; Related Information: CES partners with Brookhaven National Laboratory (BNL); Argonne National Laboratory; University of Illinois, Urbana-Champaign; Los Alamos National Laboratory; Journal ID: ISSN 2469-9950
- Publisher:
- American Physical Society (APS)
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; phonons; thermal conductivity; energy storage (including batteries and capacitors); superconductivity; defects; spin dynamics; Kondo effect; optical conductivity; quantum-to-classical transition; heavy-fermion systems
Citation Formats
Bossé, G., Pan, LiDong, Li, Yize S., Greene, L. H., Eckstein, J., and Armitage, N. P. Anomalous frequency and temperature-dependent scattering and Hund's coupling in the almost quantum critical heavy-fermion system CeFe2Ge2. United States: N. p., 2016.
Web. doi:10.1103/PhysRevB.93.085104.
Bossé, G., Pan, LiDong, Li, Yize S., Greene, L. H., Eckstein, J., & Armitage, N. P. Anomalous frequency and temperature-dependent scattering and Hund's coupling in the almost quantum critical heavy-fermion system CeFe2Ge2. United States. doi:10.1103/PhysRevB.93.085104.
Bossé, G., Pan, LiDong, Li, Yize S., Greene, L. H., Eckstein, J., and Armitage, N. P. Wed .
"Anomalous frequency and temperature-dependent scattering and Hund's coupling in the almost quantum critical heavy-fermion system CeFe2Ge2". United States. doi:10.1103/PhysRevB.93.085104. https://www.osti.gov/servlets/purl/1371215.
@article{osti_1371215,
title = {Anomalous frequency and temperature-dependent scattering and Hund's coupling in the almost quantum critical heavy-fermion system CeFe2Ge2},
author = {Bossé, G. and Pan, LiDong and Li, Yize S. and Greene, L. H. and Eckstein, J. and Armitage, N. P.},
abstractNote = {We present THz range optical conductivity data of a thin film of the near quantum critical heavy-fermion compound CeFe2Ge2. Our complex conductivity measurements find a deviation from conventional Drude-like transport in a temperature range previously reported to exhibit unconventional behavior. We calculate the frequency-dependent effective mass and scattering rate using an extended Drude model analysis. We find the inelastic scattering rate can be described by a temperature-dependent power law ωn(T), where n(T) approaches ~1.0 ± 0.2 at 1.5 K. This is compared to the ρ ~ T1.5 behavior claimed in dc resistivity data and the ρ ~ T2 expected from Fermi-liquid theory. In addition to a low-temperature mass renormalization, we find an anomalous mass renormalization that persists to high temperature. Here, we attribute this to a Hund's coupling in the Fe states in a manner similar to that recently proposed in the ferropnictides. CeFe2Ge2 appears to be a very interesting system where one may study the interplay between the usual 4f lattice Kondo effect and this Hund's enhanced Kondo effect in the 3d states.},
doi = {10.1103/PhysRevB.93.085104},
journal = {Physical Review B},
number = 8,
volume = 93,
place = {United States},
year = {2016},
month = {2}
}
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Works referenced in this record:
The electrodynamic response of heavy-electron compounds
journal, April 1999
- Degiorgi, L.
- Reviews of Modern Physics, Vol. 71, Issue 3
Field-induced quantum fluctuations in the heavy fermion superconductor CeCu2Ge2
journal, October 2011
- Singh, D. K.; Thamizhavel, A.; Lynn, J. W.
- Scientific Reports, Vol. 1, Issue 1
Metamagnetic Behavior of the Heavy-Fermion Compound CeNi 2 Ge 2
journal, June 1996
- Fukuhara, Tadashi; Maezawa, Kunihiko; Ohkuni, Hitoshi
- Journal of the Physical Society of Japan, Vol. 65, Issue 6
Anomalous Properties around Magnetic Instability in Heavy Electron Systems
journal, March 1995
- Moriya, Tôru; Takimoto, Tetsuya
- Journal of the Physical Society of Japan, Vol. 64, Issue 3
Thermal properties of metamagnetic transition in heavy-fermion systems
journal, January 1998
- Aoki, Y.; Matsuda, T. D.; Sugawara, H.
- Journal of Magnetism and Magnetic Materials, Vol. 177-181
Optical properties of CrSb, MnSb, NiSb, and NiAs
journal, March 1977
- Allen, J. W.; Mikkelsen, J. C.
- Physical Review B, Vol. 15, Issue 6
New Heavy Fermion Metamagnet CeFe 2 Ge 2
journal, April 1999
- Sugawara, Hitoshi; Aoki, Yuji; Sato, Hideyuki
- Journal of the Physical Society of Japan, Vol. 68, Issue 4
Far-infrared time-domain spectroscopy with terahertz beams of dielectrics and semiconductors
journal, January 1990
- Grischkowsky, D.; Keiding, Søren; van Exter, Martin
- Journal of the Optical Society of America B, Vol. 7, Issue 10
Onset of antiferromagnetism in heavy-fermion metals
journal, September 2000
- Schröder, A.; Aeppli, G.; Coldea, R.
- Nature, Vol. 407, Issue 6802
Magnetic properties of single crystal CeFe2Ge2
journal, February 1995
- Ebihara, T.; Motoki, K.; Toshima, H.
- Physica B: Condensed Matter, Vol. 206-207
Nature of Heavy Quasiparticles in Magnetically Ordered Heavy Fermions and
journal, April 2002
- Dressel, M.; Kasper, N.; Petukhov, K.
- Physical Review Letters, Vol. 88, Issue 18
Fermi-liquid instabilities at magnetic quantum phase transitions
journal, August 2007
- Löhneysen, Hilbert v.; Rosch, Achim; Vojta, Matthias
- Reviews of Modern Physics, Vol. 79, Issue 3
Metamagnetic-like transition in CeRu2Si2?
journal, June 1987
- Haen, P.; Flouquet, J.; Lapierre, F.
- Journal of Low Temperature Physics, Vol. 67, Issue 5-6
Microscopic origin of magnetism and magnetic interactions in ferropnictides
journal, June 2009
- Johannes, M. D.; Mazin, I. I.
- Physical Review B, Vol. 79, Issue 22
Magnetic phase transitions in RCu2Ge2 (R = Dy − Tm) intermetallics
journal, July 2011
- Gondek, Ł.; Kaczorowski, D.; Pikul, A. P.
- Intermetallics, Vol. 19, Issue 7
Non-Fermi-liquid behavior in a heavy-fermion alloy at a magnetic instability
journal, May 1994
- Löhneysen, H. v.; Pietrus, T.; Portisch, G.
- Physical Review Letters, Vol. 72, Issue 20
Quantum critical phenomena in undoped heavy-fermion metals
journal, November 1996
- Steglich, F.; Buschinger, B.; Gegenwart, P.
- Journal of Physics: Condensed Matter, Vol. 8, Issue 48
Interplay of Disorder and Spin Fluctuations in the Resistivity near a Quantum Critical Point
journal, May 1999
- Rosch, A.
- Physical Review Letters, Vol. 82, Issue 21
Tuning of Non-Fermi-Liquid Behavior with Pressure
journal, February 1995
- Bogenberger, B.; Löhneysen, H. v.
- Physical Review Letters, Vol. 74, Issue 6
Kramers–Kronig constrained variational analysis of optical spectra
journal, August 2005
- Kuzmenko, A. B.
- Review of Scientific Instruments, Vol. 76, Issue 8
Janus-Faced Influence of Hund’s Rule Coupling in Strongly Correlated Materials
journal, December 2011
- de’ Medici, Luca; Mravlje, Jernej; Georges, Antoine
- Physical Review Letters, Vol. 107, Issue 25
Low temperature heat capacity, magnetization, resistivity of CeRu2Si2, with Y or La substitution
journal, September 1985
- Besnus, M. J.; Kappler, J. P.; Lehmann, P.
- Solid State Communications, Vol. 55, Issue 9
Picosecond photoconducting Hertzian dipoles
journal, August 1984
- Auston, D. H.; Cheung, K. P.; Smith, P. R.
- Applied Physics Letters, Vol. 45, Issue 3
Low-Energy Electronic Properties of Clean : Elusive Landau Quasiparticles
journal, May 2014
- Schneider, M.; Geiger, D.; Esser, S.
- Physical Review Letters, Vol. 112, Issue 20
Effect of pressure on the resistivity of the Ce(Ru1−xFex)2Ge2 series
journal, January 1996
- Bud'ko, S. L.; Fontes, M. B.; Continentino, M. A.
- Physica B: Condensed Matter, Vol. 217, Issue 1-2
Electrodynamics of correlated electron materials
journal, June 2011
- Basov, D. N.; Averitt, Richard D.; van der Marel, Dirk
- Reviews of Modern Physics, Vol. 83, Issue 2
Optical conductivity of ( , Rh, Ir)
journal, July 2005
- Mena, F. P.; van der Marel, D.; Sarrao, J. L.
- Physical Review B, Vol. 72, Issue 4
Growth and properties of heavy fermion CeCu 2 Ge 2 and CeFe 2 Ge 2 thin films
journal, July 2011
- Li, Yize Stephanie; Zheng, Mao; Mulcahy, Brian
- Applied Physics Letters, Vol. 99, Issue 4
Magnetization of CeCu6 at low temperatures
journal, February 1992
- Schröder, A.; Schlager, H. G.; Löhneysen, H. v.
- Journal of Magnetism and Magnetic Materials, Vol. 108, Issue 1-3
The analysis of the specific heat of RFe2Si2 compounds
journal, April 2003
- Svoboda, P.; Vejpravová, J.; Honda, F.
- Physica B: Condensed Matter, Vol. 328, Issue 1-2
Coherence–incoherence crossover in the normal state of iron oxypnictides and importance of Hund's rule coupling
journal, February 2009
- Haule, K.; Kotliar, G.
- New Journal of Physics, Vol. 11, Issue 2
Effect of a nonzero temperature on quantum critical points in itinerant fermion systems
journal, September 1993
- Millis, A. J.
- Physical Review B, Vol. 48, Issue 10
Evidence of Strong Correlations and Coherence-Incoherence Crossover in the Iron Pnictide Superconductor
journal, July 2013
- Hardy, F.; Böhmer, A. E.; Aoki, D.
- Physical Review Letters, Vol. 111, Issue 2
Low energy electrodynamics of the Kondo-lattice antiferromagnet CeCu Ge
journal, April 2012
- Bossé, G.; Bilbro, L. S.; Aguilar, R. Valdés
- Physical Review B, Vol. 85, Issue 15
Kondo Resonance Narrowing in - and -Electron Systems
journal, October 2009
- Nevidomskyy, Andriy H.; Coleman, P.
- Physical Review Letters, Vol. 103, Issue 14
Optical observation of non-Fermi-liquid behavior in the heavy fermion state of
journal, October 2006
- Kimura, S.; Sichelschmidt, J.; Ferstl, J.
- Physical Review B, Vol. 74, Issue 13
Extremely slow Drude relaxation of correlated electrons
journal, December 2005
- Scheffler, Marc; Dressel, Martin; Jourdan, Martin
- Nature, Vol. 438, Issue 7071
Observation of non-Fermi-liquid behavior in U_{0.2}Y_{0.8}Pd_{3}
journal, November 1991
- Andraka, B.; Tsvelik, A.
- Physical Review Letters, Vol. 67, Issue 20
Non-Drude universal scaling laws for the optical response of local Fermi liquids
journal, March 2013
- Berthod, Christophe; Mravlje, Jernej; Deng, Xiaoyu
- Physical Review B, Vol. 87, Issue 11
Works referencing / citing this record:
Study of frequency- and temperature-dependent electrical transport in heavy fermion systems
journal, May 2017
- Baral, P. C.
- International Journal of Modern Physics B, Vol. 31, Issue 12