Polarized inelastic neutron scattering in the quasi-one-dimensional antiferromagnet KCuF3

B  Lake; D A  Tennant; S E  Nagler

doi:10.1016/j.physb.2004.10.046

Polarized inelastic neutron scattering in the quasi-one-dimensional antiferromagnet KCuF3

B Lake, D A Tennant, S E Nagler

School of Physics and Astronomy

Research output: Contribution to journal › Article › peer-review

3 Citations (Scopus)

Abstract

The material KCuF3 is a prototypical example of a weakly coupled S = 1/2 Heisenberg antiferromagnetic chain system. The inter-chain coupling leads to anti ferromagnetic order at low temperatures. In the ordered state theory predicts that the low-energy spin dynamics exhibits an unusual gapped longitudinal mode. Here we report polarized inelastic scattering measurements of the excitations in KCuF3. A weak magnetic field is utilized to prepare a single domain state with the spins aligned in the scattering plane but perpendicular to the chain direction. This configuration enables a clean measurement of the longitudinal magnetic response as spin-flip scattering. (C) 2004 Elsevier B.V. All rights reserved.

Original language	English
Pages (from-to)	56-59
Number of pages	4
Journal	Physica B : Condensed Matter
Volume	356
Issue number	1-4
DOIs	https://doi.org/10.1016/j.physb.2004.10.046
Publication status	Published - 15 Feb 2005

Keywords

quantum magnets
longitudinal modes
low dimensional
CHAIN COMPOUND KCUF3
MAGNETIC EXCITATIONS
SPIN DYNAMICS
FIELD
DIFFRACTION
CONTINUUM
SPECTRUM

Access to Document

10.1016/j.physb.2004.10.046

Cite this

@article{3646b8654d524e1b8b453647867906c3,

title = "Polarized inelastic neutron scattering in the quasi-one-dimensional antiferromagnet KCuF3",

abstract = "The material KCuF3 is a prototypical example of a weakly coupled S = 1/2 Heisenberg antiferromagnetic chain system. The inter-chain coupling leads to anti ferromagnetic order at low temperatures. In the ordered state theory predicts that the low-energy spin dynamics exhibits an unusual gapped longitudinal mode. Here we report polarized inelastic scattering measurements of the excitations in KCuF3. A weak magnetic field is utilized to prepare a single domain state with the spins aligned in the scattering plane but perpendicular to the chain direction. This configuration enables a clean measurement of the longitudinal magnetic response as spin-flip scattering. (C) 2004 Elsevier B.V. All rights reserved.",

keywords = "quantum magnets, longitudinal modes, low dimensional, CHAIN COMPOUND KCUF3, MAGNETIC EXCITATIONS, SPIN DYNAMICS, FIELD, DIFFRACTION, CONTINUUM, SPECTRUM",

author = "B Lake and Tennant, {D A} and Nagler, {S E}",

year = "2005",

month = feb,

day = "15",

doi = "10.1016/j.physb.2004.10.046",

language = "English",

volume = "356",

pages = "56--59",

journal = "Physica B : Condensed Matter",

issn = "0921-4526",

publisher = "Elsevier",

number = "1-4",

}

TY - JOUR

T1 - Polarized inelastic neutron scattering in the quasi-one-dimensional antiferromagnet KCuF3

AU - Lake, B

AU - Tennant, D A

AU - Nagler, S E

PY - 2005/2/15

Y1 - 2005/2/15

N2 - The material KCuF3 is a prototypical example of a weakly coupled S = 1/2 Heisenberg antiferromagnetic chain system. The inter-chain coupling leads to anti ferromagnetic order at low temperatures. In the ordered state theory predicts that the low-energy spin dynamics exhibits an unusual gapped longitudinal mode. Here we report polarized inelastic scattering measurements of the excitations in KCuF3. A weak magnetic field is utilized to prepare a single domain state with the spins aligned in the scattering plane but perpendicular to the chain direction. This configuration enables a clean measurement of the longitudinal magnetic response as spin-flip scattering. (C) 2004 Elsevier B.V. All rights reserved.

AB - The material KCuF3 is a prototypical example of a weakly coupled S = 1/2 Heisenberg antiferromagnetic chain system. The inter-chain coupling leads to anti ferromagnetic order at low temperatures. In the ordered state theory predicts that the low-energy spin dynamics exhibits an unusual gapped longitudinal mode. Here we report polarized inelastic scattering measurements of the excitations in KCuF3. A weak magnetic field is utilized to prepare a single domain state with the spins aligned in the scattering plane but perpendicular to the chain direction. This configuration enables a clean measurement of the longitudinal magnetic response as spin-flip scattering. (C) 2004 Elsevier B.V. All rights reserved.

KW - quantum magnets

KW - longitudinal modes

KW - low dimensional

KW - CHAIN COMPOUND KCUF3

KW - MAGNETIC EXCITATIONS

KW - SPIN DYNAMICS

KW - FIELD

KW - DIFFRACTION

KW - CONTINUUM

KW - SPECTRUM

U2 - 10.1016/j.physb.2004.10.046

DO - 10.1016/j.physb.2004.10.046

M3 - Article

SN - 0921-4526

VL - 356

SP - 56

EP - 59

JO - Physica B : Condensed Matter

JF - Physica B : Condensed Matter

IS - 1-4

ER -

Polarized inelastic neutron scattering in the quasi-one-dimensional antiferromagnet KCuF3

Abstract

Keywords

Access to Document

Fingerprint

Cite this