Thermal conductivity and specific heat of the linear chain cuprateSr2CuO3:Evidence for thermal transport via spinons

2000/07/24 by A. V. Sologubenko, E. Felder, K. Gianno +4 · 8 citations
Materials Science · Physics and Astronomy · #Advanced Condensed Matter Physics #Antiferromagnetism #Condensed matter physics #Cuprate #Isotropy #Magnetic and transport properties of perovskites and related materials #Materials science #Phonon #Physics #Physics of Superconductivity and Magnetism #Quantum mechanics #Spin (aerodynamics) #Spinon #Superconductivity #Thermal conductivity #Thermodynamics #cond-mat.str-el

paper · pdf · doi:10.1103/physrevb.62.r6108

published as Phys. Rev. B 62, R6108 (2000) · 4 RevTeX pages, 3 figures, to appear in Phys. Rev. B

arxiv created 2000/07/24 · openalex publication_date 2000/09/01 · arxiv updated 2009/11/30 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05

Abstract

We report measurements of the specific heat and the thermal conductivity of the model Heisenberg spin-1/2 chain cuprate Sr₂CuO₃ at low temperatures. In addition to a nearly isotropic phonon heat transport, we find a quasi-one-dimensional excess thermal conductivity along the chain direction, most likely associated with spin excitations (spinons). The spinon energy current is limited mainly by scattering on defects and phonons. Analyzing the specific heat data, the intrachain magnetic exchange J/k_B is estimated to be \ensuremath≃2650 K.

Citations

• Possible localized modes in the uniform quantum Heisenberg chains ofSr2CuO3
• Reduction of Ordered Moment and Néel Temperature of Quasi-One-Dimensional AntiferromagnetsSr2CuO3andCa2CuO3

Cited by

• Heat transport properties of clean spin ladders coupled to phonons: Umklapp scattering and drag
• Thermal transport in one-dimensional spin heterostructures
• Spinon heat transport and spin–phonon interaction in the spin-1/2 Heisenberg chain cuprates Sr2CuO3and SrCuO2
• Chemistry of Quantum Spin Liquids
• Heat transport by lattice and spin excitations in the spin-chain compoundsSrCuO2andSr2CuO3
• Universal behavior of spin-mediated energy transport in S = 1/2 chain cuprates: BaCu 2 Si 2 O 7 as an example
• MICROSCOPIC QUANTUM MECHANICAL FOUNDATION OF FOURIER'S LAW
• Evidence of one-dimensional magnetic heat transport in the triangular-lattice antiferromagnet Cs2CuCl4