Heat Transport in Spin Chains with Weak Spin-Phonon Coupling

Physical Review Letters
A L Chernyshev, A V Rozhkov

Abstract

The heat transport in a system of S=1/2 large-J Heisenberg spin chains, describing closely Sr(2)CuO(3) and SrCuO(2) cuprates, is studied theoretically at T≪J by considering interactions of the bosonized spin excitations with optical phonons and defects. Treating rigorously the multiboson processes, we derive a microscopic spin-phonon scattering rate that adheres to an intuitive picture of phonons acting as thermally populated defects for the fast spin excitations. The mean-free path of the latter exhibits a distinctive T dependence reflecting a critical nature of spin chains and gives a close description of experiments. By the naturalness criterion of realistically small spin-phonon interaction, our approach stands out from previous considerations that require large coupling constants to explain the data and thus imply a spin-Peierls transition, absent in real materials.

References

Dec 1, 1991·Physical Review. B, Condensed Matter·S E NaglerS K Satija
Dec 15, 1992·Physical Review. B, Condensed Matter·C L Kane, M P Fisher
Nov 9, 1992·Physical Review Letters·S R White
Jun 21, 1993·Physical Review Letters·D A TennantS E Nagler
Sep 16, 2000·Physical Review Letters·A Klumper, D C Johnston
Aug 9, 2003·Physical Review Letters·M B StoneM M Turnbull
Aug 25, 2004·Physical Review Letters·Steven R White, Adrian E Feiguin
Sep 28, 2004·Physical Review Letters·I A ZaliznyakH Takagi
Mar 22, 2005·Nature Materials·Bella LakeStephen E Nagler
Mar 24, 2005·Physical Review Letters·A V Rozhkov, A L Chernyshev
May 6, 2005·Nature Materials·Igor A Zaliznyak
Oct 4, 2005·Physical Review Letters·Jean-Sébastien Caux, Jean Michel Maillet
Apr 12, 2006·Physical Review Letters·P JungA Rosch
Apr 7, 2010·Physical Review Letters·J SirkerI Affleck
Aug 27, 2013·Physical Review Letters·G SimutisA Zheludev

❮ Previous
Next ❯

Citations


❮ Previous
Next ❯

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.