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Title: Spin dynamics in the linear-chain {ital S}=1 antiferromagnet Ni(C{sub 3}H{sub 10}N{sub 2}){sub 2}N{sub 3}(ClO{sub 4})

Abstract

Magnetic excitations in the quasi-one-dimensional Heisenberg spin-1 antiferromagnet Ni(C{sub 3}H{sub 10}N{sub 2}){sub 2}N{sub 3}(ClO{sub 4}) (NINAZ) have been studied by single-crystal inelastic neutron scattering. A Haldane gap {Delta}{approx_equal}3.6 meV in the spin excitation spectrum was observed in the vicinity of the antiferromagnetic wave vector at low temperature and the dispersion relation was measured. The temperature dependence of the energy gap {Delta}({ital T}) was measured in the range 8{endash}50 K and was found to be inconsistent with the predictions of the quantum nonlinear {sigma} model. The results are discussed in comparison with those found in the literature for similar systems. {copyright} {ital 1996 The American Physical Society.}

Authors:
 [1];  [2];  [1]; ;  [3];  [2]
  1. Department of Physics, Brookhaven National Laboratory, Upton, New York 11973-5000 (United States)
  2. Department of Physics and the Center for Ultralow Temperature Research, University of Florida, Gainesville, Florida 32611-8440 (United States)
  3. Department of Chemistry, University of Florida, Gainesville, Florida 32611-7200 (United States)
Publication Date:
Research Org.:
Brookhaven National Lab. (BNL), Upton, NY (United States)
OSTI Identifier:
286109
DOE Contract Number:  
AC02-76CH00016; AC05-96OR22464
Resource Type:
Journal Article
Journal Name:
Physical Review, B: Condensed Matter
Additional Journal Information:
Journal Volume: 53; Journal Issue: 22; Other Information: PBD: Jun 1996
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; ANTIFERROMAGNETIC MATERIALS; COLLECTIVE EXCITATIONS; ORGANIC NITROGEN COMPOUNDS; NICKEL COMPOUNDS; CHLORATES; INELASTIC SCATTERING; NEUTRON BEAMS; DISPERSION RELATIONS; ENERGY GAP; TEMPERATURE DEPENDENCE; TEMPERATURE RANGE 0000-0013 K; TEMPERATURE RANGE 0013-0065 K

Citation Formats

Zheludev, A, Nagler, S E, Shapiro, S M, Chou, L K, Talham, D R, and Meisel, M W. Spin dynamics in the linear-chain {ital S}=1 antiferromagnet Ni(C{sub 3}H{sub 10}N{sub 2}){sub 2}N{sub 3}(ClO{sub 4}). United States: N. p., 1996. Web. doi:10.1103/PhysRevB.53.15004.
Zheludev, A, Nagler, S E, Shapiro, S M, Chou, L K, Talham, D R, & Meisel, M W. Spin dynamics in the linear-chain {ital S}=1 antiferromagnet Ni(C{sub 3}H{sub 10}N{sub 2}){sub 2}N{sub 3}(ClO{sub 4}). United States. doi:10.1103/PhysRevB.53.15004.
Zheludev, A, Nagler, S E, Shapiro, S M, Chou, L K, Talham, D R, and Meisel, M W. Sat . "Spin dynamics in the linear-chain {ital S}=1 antiferromagnet Ni(C{sub 3}H{sub 10}N{sub 2}){sub 2}N{sub 3}(ClO{sub 4})". United States. doi:10.1103/PhysRevB.53.15004.
@article{osti_286109,
title = {Spin dynamics in the linear-chain {ital S}=1 antiferromagnet Ni(C{sub 3}H{sub 10}N{sub 2}){sub 2}N{sub 3}(ClO{sub 4})},
author = {Zheludev, A and Nagler, S E and Shapiro, S M and Chou, L K and Talham, D R and Meisel, M W},
abstractNote = {Magnetic excitations in the quasi-one-dimensional Heisenberg spin-1 antiferromagnet Ni(C{sub 3}H{sub 10}N{sub 2}){sub 2}N{sub 3}(ClO{sub 4}) (NINAZ) have been studied by single-crystal inelastic neutron scattering. A Haldane gap {Delta}{approx_equal}3.6 meV in the spin excitation spectrum was observed in the vicinity of the antiferromagnetic wave vector at low temperature and the dispersion relation was measured. The temperature dependence of the energy gap {Delta}({ital T}) was measured in the range 8{endash}50 K and was found to be inconsistent with the predictions of the quantum nonlinear {sigma} model. The results are discussed in comparison with those found in the literature for similar systems. {copyright} {ital 1996 The American Physical Society.}},
doi = {10.1103/PhysRevB.53.15004},
journal = {Physical Review, B: Condensed Matter},
number = 22,
volume = 53,
place = {United States},
year = {1996},
month = {6}
}