Single to multi quasiparticle excitations in the itinerant helical magnet CeRhIn${}_5$

Abstract

CeRhIn${}_5$ is an itinerant magnet where the Ce${}^{3+}$ spins order in a simple helical phase. We investigate the spin excitations and observe sharp spin-waves parameterized by a nearest neighbor exchange $J_{RKKY}$=0.88 $\pm$ 0.05 meV. At higher energies, the spin fluctuations are heavily damped where single quasiparticle excitations are replaced by a momentum and energy broadened continuum constrained by kinematics of energy and momentum conservation. The delicate energy balance between localized and itinerant characters results in the breakdown of the single quasiparticle picture in CeRhIn${}_5$.

arXiv comment(main text - 5 pages, 4 figures; supplementary information - 5 pages, 4 figures)

References in corpus (45)

• The Puzzle of High Temperature Superconductivity in Layered Iron Pnictides and Chalcogenides
• Superconductivity in Iron Compounds
• High-temperature superconductivity in iron-based materials
• Fractionalized excitations in the spin liquid state of a kagomé lattice antiferromagnet
• How do Fermi liquids get heavy and die?
• Angular Position of Nodes in the Superconducting Gap of Quasi-2D Heavy-Fermion Superconductor CeCoIn_5
• A New Heavy-Fermion Superconductor CeIrIn5: Relative of the Cuprates?
• Spontaneous Magnon Decays
• Spin resonance in the d-wave superconductor CeCoIn5
• Observation of extended scattering continua characteristic of spin fractionalization in the 2D frustrated quantum magnet Cs2CuCl4 by neutron scattering
• Pseudogap state from quantum criticality
• Progress in Neutron Scattering Studies of Spin Excitations in High-Tc Cuprates
• Anomalous High-Energy Spin Excitations in La2CuO4
• Incommensurate magnetic structure of CeRhIn5
• Magnetic neutron scattering in hole doped cuprate superconductors
• Confinement of fractional quantum number particles in a condensed matter system
• Superconductivity and Magnetism in a New Class of Heavy-Fermion Materials
• Scale-free antiferromagnetic fluctuations in the S=1/2 kagome antiferromagnet herbertsmithite
• Quantum dynamics and entanglement of spins on a square lattice
• Field-angle Dependence of the Zero-Energy Density of States in the Unconventional Heavy-Fermion Superconductor CeCoIn5
• High-energy magnon dispersion and multi-magnon continuum in the two-dimensional Heisenberg antiferromagnet
• Magnon Decay in Noncollinear Quantum Antiferromagnets
• Electronic Structure of CeRhIn${}_5$: dHvA and Energy Band Calculations
• Quasiparticle breakdown in a quantum spin liquid
• Crystal-field and Kondo scale investigation of CeMIn5 (M=Co, Ir and Rh): a combined x-ray absorption and inelastic neutron study
• Continuum in the spin excitation spectrum of a Haldane chain, observed by neutron scattering in CsNiCl3
• Two-magnon excitations observed by neutron scattering in the two-dimensional spin-5/2 Heisenberg antiferromagnet Rb2MnF4
• Anisotropic three-dimentional magnetic fluctuations in heavy fermion CeRhIn5
• Magnetic field splitting of the spin-resonance in CeCoIn5
• Electronic Duality in Strongly Correlated Matter
• Heat Transport as a Probe of Electron Scattering by Spin Fluctuations: the Case of Antiferromagnetic CeRhIn5
• Neutron scattering study of cyrstal fields in CeRhIn5
• The effect of the pseudogap on suppressing high energy inelastic neutron scattering in superconducting YBa2Cu3O6.5
• Magnetic structure of CeRhIn${}_5$ under magnetic field
• The magnitude of the magnetic exchange interaction in the heavy fermion antiferromagnet CeRhIn${}_5$
• Helical spin-waves, magnetic order, and fluctuations in the langasite compound Ba3NbFe3Si2O14
• Magnetism and superconductivity in strongly correlated CeRhIn5
• Multi-particle States in Spin-1 Chain System CsNiCl3
• Exploring the fragile antiferromagnetic superconducting phase in CeCoIn5
• Spin Structure Factor of the Frustrated Quantum Magnet Cs_2CuCl_4
• Soft striped magnetic fluctuations competing with superconductivity in Fe_{1+x}Te
• High-Energy Continuum of Magnetic Excitations in the Two-Dimensional Quantum Antiferromagnet Sr2CuO2Cl2
• Ambient-pressure bulk superconductivity deep in the magnetic state of CeRhIn5
• Evidence for decay of spin-waves above the pseudogap in underdoped YBa2Cu3O6.35
• Anomalous Spin Excitation Spectrum of the Heisenberg Model in a Magnetic Field

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