Unusual Hall effect in quasi two-dimensional strongly correlated metal CeCoIn5

Y. Nakajima; H. Shishido; K. Izawa; Y. Matsuda; H. Kontani; K. Behnia; H. Hedo; Y. Uwatoko; T. Matsumoto; R. Settai; Y. Onuki

doi:10.1016/j.physc.2007.03.082

Unusual Hall effect in quasi two-dimensional strongly correlated metal CeCoIn₅

Y. Nakajima
, H. Shishido
, K. Izawa
, Y. Matsuda
, H. Kontani
, K. Behnia
, H. Hedo
, Y. Uwatoko
, T. Matsumoto
, R. Settai
, Y. Onuki

École Polytechnique

University of Tokyo
Kyoto University
Univ. Joseph Fourier-Grenoble 1
Nagoya University
National Institute for Materials Science
Osaka University

Research output: Contribution to journal › Article › peer-review

Abstract

We report on the systematic study of Hall effect in quasi two-dimensional strongly correlated metal CeCoIn₅, ranging from non-Fermi liquid to Fermi liquid regime by using pressure as a tuning parameter. We found that unusual normal-state transport properties in CeCoIn₅ bear a striking resemblance to that in high-T_c cuprates. We also found that at ambient pressure in the vicinity of quantum critical point (QCP), the magnitude of Hall coefficient R_H dramatically increases with decreasing temperature. The enhancement of R_H is strongly suppressed by applying pressure and magnetic field. These results indicate that the anomalous transport properties are governed by anisotropic scattering due to strong spin fluctuations in the vicinity of the QCP.

Original language	English
Pages (from-to)	680-681
Number of pages	2
Journal	Physica C: Superconductivity and its Applications
Volume	460-462 I
Issue number	SPEC. ISS.
DOIs	https://doi.org/10.1016/j.physc.2007.03.082
Publication status	Published - 1 Sept 2007

Keywords

Fermi liquid
Hall effect
Heavy fermion
Quantum critical point

Access to Document

10.1016/j.physc.2007.03.082

Cite this

@article{b7baa759b958407190f879afe12ea314,

title = "Unusual Hall effect in quasi two-dimensional strongly correlated metal CeCoIn5",

abstract = "We report on the systematic study of Hall effect in quasi two-dimensional strongly correlated metal CeCoIn5, ranging from non-Fermi liquid to Fermi liquid regime by using pressure as a tuning parameter. We found that unusual normal-state transport properties in CeCoIn5 bear a striking resemblance to that in high-Tc cuprates. We also found that at ambient pressure in the vicinity of quantum critical point (QCP), the magnitude of Hall coefficient RH dramatically increases with decreasing temperature. The enhancement of RH is strongly suppressed by applying pressure and magnetic field. These results indicate that the anomalous transport properties are governed by anisotropic scattering due to strong spin fluctuations in the vicinity of the QCP.",

keywords = "Fermi liquid, Hall effect, Heavy fermion, Quantum critical point",

author = "Y. Nakajima and H. Shishido and K. Izawa and Y. Matsuda and H. Kontani and K. Behnia and H. Hedo and Y. Uwatoko and T. Matsumoto and R. Settai and Y. Onuki",

year = "2007",

month = sep,

day = "1",

doi = "10.1016/j.physc.2007.03.082",

language = "English",

volume = "460-462 I",

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journal = "Physica C: Superconductivity and its Applications",

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TY - JOUR

T1 - Unusual Hall effect in quasi two-dimensional strongly correlated metal CeCoIn5

AU - Nakajima, Y.

AU - Shishido, H.

AU - Izawa, K.

AU - Matsuda, Y.

AU - Kontani, H.

AU - Behnia, K.

AU - Hedo, H.

AU - Uwatoko, Y.

AU - Matsumoto, T.

AU - Settai, R.

AU - Onuki, Y.

PY - 2007/9/1

Y1 - 2007/9/1

N2 - We report on the systematic study of Hall effect in quasi two-dimensional strongly correlated metal CeCoIn5, ranging from non-Fermi liquid to Fermi liquid regime by using pressure as a tuning parameter. We found that unusual normal-state transport properties in CeCoIn5 bear a striking resemblance to that in high-Tc cuprates. We also found that at ambient pressure in the vicinity of quantum critical point (QCP), the magnitude of Hall coefficient RH dramatically increases with decreasing temperature. The enhancement of RH is strongly suppressed by applying pressure and magnetic field. These results indicate that the anomalous transport properties are governed by anisotropic scattering due to strong spin fluctuations in the vicinity of the QCP.

AB - We report on the systematic study of Hall effect in quasi two-dimensional strongly correlated metal CeCoIn5, ranging from non-Fermi liquid to Fermi liquid regime by using pressure as a tuning parameter. We found that unusual normal-state transport properties in CeCoIn5 bear a striking resemblance to that in high-Tc cuprates. We also found that at ambient pressure in the vicinity of quantum critical point (QCP), the magnitude of Hall coefficient RH dramatically increases with decreasing temperature. The enhancement of RH is strongly suppressed by applying pressure and magnetic field. These results indicate that the anomalous transport properties are governed by anisotropic scattering due to strong spin fluctuations in the vicinity of the QCP.

KW - Fermi liquid

KW - Hall effect

KW - Heavy fermion

KW - Quantum critical point

U2 - 10.1016/j.physc.2007.03.082

DO - 10.1016/j.physc.2007.03.082

M3 - Article

AN - SCOPUS:34548184845

SN - 0921-4534

VL - 460-462 I

SP - 680

EP - 681

JO - Physica C: Superconductivity and its Applications

JF - Physica C: Superconductivity and its Applications

IS - SPEC. ISS.