Zero-Field Ambient-Pressure Quantum Criticality in the Stoichiometric Non-Fermi Liquid System CeRhBi
We present the spin dynamics study of a stoichiometric non-Fermi liquid (NFL) system CeRhBi, using low-energy inelastic neutron scattering (INS) and muon spin relaxation (μSR) measurements. It shows evidence for an energy-temperature (E/T) scaling in the INS dynamic response and a time-field (t/Hη)...
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| Veröffentlicht in: | Journal of the Physical Society of Japan 2018-06, Vol.87 (6) |
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| container_title | Journal of the Physical Society of Japan |
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| creator | Anand, Vivek K Adroja, Devashibhai T Hillier, Adrian D Shigetoh, Keisuke Takabatake, Toshiro Park, Je-Geun McEwen, Keith A Pixley, Jedediah H Si, Qimiao |
| description | We present the spin dynamics study of a stoichiometric non-Fermi liquid (NFL) system CeRhBi, using low-energy inelastic neutron scattering (INS) and muon spin relaxation (μSR) measurements. It shows evidence for an energy-temperature (E/T) scaling in the INS dynamic response and a time-field (t/Hη) scaling of the μSR asymmetry function indicating a quantum critical behavior in this compound. The E/T scaling reveals a local character of quantum criticality consistent with the power-law divergence of the magnetic susceptibility, logarithmic divergence of the magnetic heat capacity and T-linear resistivity at low temperature. The occurrence of NFL behavior and local criticality over a very wide dynamical range at zero field and ambient pressure without any tuning in this stoichiometric heavy fermion compound is striking, making CeRhBi a model system amenable to in-depth studies for quantum criticality. |
| doi_str_mv | 10.7566/JPSJ.87.064708 |
| format | Article |
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It shows evidence for an energy-temperature (E/T) scaling in the INS dynamic response and a time-field (t/Hη) scaling of the μSR asymmetry function indicating a quantum critical behavior in this compound. The E/T scaling reveals a local character of quantum criticality consistent with the power-law divergence of the magnetic susceptibility, logarithmic divergence of the magnetic heat capacity and T-linear resistivity at low temperature. The occurrence of NFL behavior and local criticality over a very wide dynamical range at zero field and ambient pressure without any tuning in this stoichiometric heavy fermion compound is striking, making CeRhBi a model system amenable to in-depth studies for quantum criticality.</description><identifier>ISSN: 0031-9015</identifier><identifier>EISSN: 1347-4073</identifier><identifier>DOI: 10.7566/JPSJ.87.064708</identifier><language>eng</language><publisher>Tokyo: The Physical Society of Japan</publisher><subject>Divergence ; Dynamic response ; Fermi liquids ; Inelastic scattering ; Liquids ; Magnetic permeability ; Muon spin relaxation ; Neutron scattering ; Neutrons ; Pressure ; Pressure measurement ; Quantum physics ; Scaling ; Scattering ; Spin dynamics</subject><ispartof>Journal of the Physical Society of Japan, 2018-06, Vol.87 (6)</ispartof><rights>Copyright The Physical Society of Japan Jun 15, 2018</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,778,782,27907,27908</link.rule.ids></links><search><creatorcontrib>Anand, Vivek K</creatorcontrib><creatorcontrib>Adroja, Devashibhai T</creatorcontrib><creatorcontrib>Hillier, Adrian D</creatorcontrib><creatorcontrib>Shigetoh, Keisuke</creatorcontrib><creatorcontrib>Takabatake, Toshiro</creatorcontrib><creatorcontrib>Park, Je-Geun</creatorcontrib><creatorcontrib>McEwen, Keith A</creatorcontrib><creatorcontrib>Pixley, Jedediah H</creatorcontrib><creatorcontrib>Si, Qimiao</creatorcontrib><title>Zero-Field Ambient-Pressure Quantum Criticality in the Stoichiometric Non-Fermi Liquid System CeRhBi</title><title>Journal of the Physical Society of Japan</title><description>We present the spin dynamics study of a stoichiometric non-Fermi liquid (NFL) system CeRhBi, using low-energy inelastic neutron scattering (INS) and muon spin relaxation (μSR) measurements. It shows evidence for an energy-temperature (E/T) scaling in the INS dynamic response and a time-field (t/Hη) scaling of the μSR asymmetry function indicating a quantum critical behavior in this compound. The E/T scaling reveals a local character of quantum criticality consistent with the power-law divergence of the magnetic susceptibility, logarithmic divergence of the magnetic heat capacity and T-linear resistivity at low temperature. 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It shows evidence for an energy-temperature (E/T) scaling in the INS dynamic response and a time-field (t/Hη) scaling of the μSR asymmetry function indicating a quantum critical behavior in this compound. The E/T scaling reveals a local character of quantum criticality consistent with the power-law divergence of the magnetic susceptibility, logarithmic divergence of the magnetic heat capacity and T-linear resistivity at low temperature. The occurrence of NFL behavior and local criticality over a very wide dynamical range at zero field and ambient pressure without any tuning in this stoichiometric heavy fermion compound is striking, making CeRhBi a model system amenable to in-depth studies for quantum criticality.</abstract><cop>Tokyo</cop><pub>The Physical Society of Japan</pub><doi>10.7566/JPSJ.87.064708</doi></addata></record> |
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| subjects | Divergence Dynamic response Fermi liquids Inelastic scattering Liquids Magnetic permeability Muon spin relaxation Neutron scattering Neutrons Pressure Pressure measurement Quantum physics Scaling Scattering Spin dynamics |
| title | Zero-Field Ambient-Pressure Quantum Criticality in the Stoichiometric Non-Fermi Liquid System CeRhBi |
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