Resonant scattering of phonons in the quasi-one-dimensional spin-chain compounds AB2 O6 (A = Ni, Co; B = Sb, Ta)

N. Prasai, A. B. Christian, J. J. Neumeier, Joshua Cohn

Research output: Contribution to journalArticle

Abstract

We report measurements of thermal conductivity (κ) on single crystals of the quasi-one-dimensional antiferromagnetic spin-chain compounds AB2O6 (A = Ni, Co; B = Sb, Ta) in the temperature range 5≤T≤300 K. We find that κ for all crystallographic directions is substantially suppressed in the Ta compounds in comparison to those of the Sb compounds despite their very similar magnetic and crystallographic structures. The data are well described by resonant scattering of phonons from two-level systems, with energy splittings of ∼100-150 K and scattering strength an order of magnitude greater in the Ta compounds. We distinguish the effects of phonon-spin interactions from those related to changes in the low-energy phonon spectra caused by the different B-site ions.

Original languageEnglish (US)
Article number134449
JournalPhysical Review B
Volume98
Issue number13
DOIs
StatePublished - Oct 30 2018

Fingerprint

Phonons
phonons
Scattering
scattering
Thermal conductivity
thermal conductivity
Single crystals
Ions
energy
single crystals
ions
interactions
Temperature
temperature
AB-2 compound
Direction compound

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

Cite this

Resonant scattering of phonons in the quasi-one-dimensional spin-chain compounds AB2 O6 (A = Ni, Co; B = Sb, Ta). / Prasai, N.; Christian, A. B.; Neumeier, J. J.; Cohn, Joshua.

In: Physical Review B, Vol. 98, No. 13, 134449, 30.10.2018.

Research output: Contribution to journalArticle

@article{c838750185664c869a780aa933a82c76,
title = "Resonant scattering of phonons in the quasi-one-dimensional spin-chain compounds AB2 O6 (A = Ni, Co; B = Sb, Ta)",
abstract = "We report measurements of thermal conductivity (κ) on single crystals of the quasi-one-dimensional antiferromagnetic spin-chain compounds AB2O6 (A = Ni, Co; B = Sb, Ta) in the temperature range 5≤T≤300 K. We find that κ for all crystallographic directions is substantially suppressed in the Ta compounds in comparison to those of the Sb compounds despite their very similar magnetic and crystallographic structures. The data are well described by resonant scattering of phonons from two-level systems, with energy splittings of ∼100-150 K and scattering strength an order of magnitude greater in the Ta compounds. We distinguish the effects of phonon-spin interactions from those related to changes in the low-energy phonon spectra caused by the different B-site ions.",
author = "N. Prasai and Christian, {A. B.} and Neumeier, {J. J.} and Joshua Cohn",
year = "2018",
month = "10",
day = "30",
doi = "10.1103/PhysRevB.98.134449",
language = "English (US)",
volume = "98",
journal = "Physical Review B-Condensed Matter",
issn = "2469-9950",
publisher = "American Physical Society",
number = "13",

}

TY - JOUR

T1 - Resonant scattering of phonons in the quasi-one-dimensional spin-chain compounds AB2 O6 (A = Ni, Co; B = Sb, Ta)

AU - Prasai, N.

AU - Christian, A. B.

AU - Neumeier, J. J.

AU - Cohn, Joshua

PY - 2018/10/30

Y1 - 2018/10/30

N2 - We report measurements of thermal conductivity (κ) on single crystals of the quasi-one-dimensional antiferromagnetic spin-chain compounds AB2O6 (A = Ni, Co; B = Sb, Ta) in the temperature range 5≤T≤300 K. We find that κ for all crystallographic directions is substantially suppressed in the Ta compounds in comparison to those of the Sb compounds despite their very similar magnetic and crystallographic structures. The data are well described by resonant scattering of phonons from two-level systems, with energy splittings of ∼100-150 K and scattering strength an order of magnitude greater in the Ta compounds. We distinguish the effects of phonon-spin interactions from those related to changes in the low-energy phonon spectra caused by the different B-site ions.

AB - We report measurements of thermal conductivity (κ) on single crystals of the quasi-one-dimensional antiferromagnetic spin-chain compounds AB2O6 (A = Ni, Co; B = Sb, Ta) in the temperature range 5≤T≤300 K. We find that κ for all crystallographic directions is substantially suppressed in the Ta compounds in comparison to those of the Sb compounds despite their very similar magnetic and crystallographic structures. The data are well described by resonant scattering of phonons from two-level systems, with energy splittings of ∼100-150 K and scattering strength an order of magnitude greater in the Ta compounds. We distinguish the effects of phonon-spin interactions from those related to changes in the low-energy phonon spectra caused by the different B-site ions.

UR - http://www.scopus.com/inward/record.url?scp=85056433294&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85056433294&partnerID=8YFLogxK

U2 - 10.1103/PhysRevB.98.134449

DO - 10.1103/PhysRevB.98.134449

M3 - Article

VL - 98

JO - Physical Review B-Condensed Matter

JF - Physical Review B-Condensed Matter

SN - 2469-9950

IS - 13

M1 - 134449

ER -