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Title: Magnetic ordering induced by interladder coupling in the spin-1/2 Heisenberg two-leg ladder antiferromagnet C 9H 18N 2CuBr 4

Abstract

In this article, we present specific-heat and neutron-scattering results for the S=1/2 quantum antiferromagnet (dimethylammonium)(3,5-dimethylpyridinium)CuBr 4. The material orders magnetically at T N=1.99(2) K, and magnetic excitations are accompanied by an energy gap of 0.30(2) meV due to spin anisotropy. The system is best described as coupled two-leg spin-1/2 ladders with the leg exchange J leg=0.60(2) meV, rung exchange J rung=0.64(9) meV, interladder exchange J int=0.19(2) meV, and an interaction-anisotropy parameter λ=0.93(2), according to inelastic neutron-scattering measurements. In contrast to most spin ladders reported to date, the material is a rare example in which the interladder coupling is very near the critical value required to drive the system to a Néel-ordered phase without the assistance of a magnetic field.

Authors:
 [1];  [2];  [2];  [3];  [4];  [5];  [5];  [6];  [6];  [7];  [7];  [1];  [1];  [1];  [1];  [8];  [1]
  1. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
  2. Technische Universitat Dortmund, Dortmund (Germany)
  3. The University of Jordan, Amman (Jordan)
  4. Clark Univ., Worcester, MA (United States)
  5. National Inst. of Standards and Technology (NIST), Gaithersburg, MD (United States); Univ. of Maryland, College Park, MD (United States)
  6. Michigan State Univ., East Lansing, MI (United States)
  7. Univ. of Florida, Gainesville, FL (United States)
  8. Univ. of Tennessee, Knoxville, TN (United States)
Publication Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). High Flux Isotope Reactor (HFIR)
Sponsoring Org.:
USDOE Office of Science (SC)
OSTI Identifier:
1265300
DOE Contract Number:  
AC05-00OR22725
Resource Type:
Journal Article
Journal Name:
Physical Review B
Additional Journal Information:
Journal Volume: 89; Journal Issue: 17; Journal ID: ISSN 2469-9950
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY

Citation Formats

Hong, Tao, Schmidt, K. P., Coester, K., Awwadi, F. F., Turnbull, M. M., Qiu, Y., Rodriguez-Rivera, J. A., Zhu, M., Ke, X., Aoyama, C. P., Takano, Y., Cao, Huibo, Tian, Wei, Ma, Jie, Custelcean, Radu, Zhou, H. D., and Matsuda, Masaaki. Magnetic ordering induced by interladder coupling in the spin-1/2 Heisenberg two-leg ladder antiferromagnet C9H18N2CuBr4. United States: N. p., 2014. Web. doi:10.1103/PhysRevB.89.174432.
Hong, Tao, Schmidt, K. P., Coester, K., Awwadi, F. F., Turnbull, M. M., Qiu, Y., Rodriguez-Rivera, J. A., Zhu, M., Ke, X., Aoyama, C. P., Takano, Y., Cao, Huibo, Tian, Wei, Ma, Jie, Custelcean, Radu, Zhou, H. D., & Matsuda, Masaaki. Magnetic ordering induced by interladder coupling in the spin-1/2 Heisenberg two-leg ladder antiferromagnet C9H18N2CuBr4. United States. https://doi.org/10.1103/PhysRevB.89.174432
Hong, Tao, Schmidt, K. P., Coester, K., Awwadi, F. F., Turnbull, M. M., Qiu, Y., Rodriguez-Rivera, J. A., Zhu, M., Ke, X., Aoyama, C. P., Takano, Y., Cao, Huibo, Tian, Wei, Ma, Jie, Custelcean, Radu, Zhou, H. D., and Matsuda, Masaaki. Fri . "Magnetic ordering induced by interladder coupling in the spin-1/2 Heisenberg two-leg ladder antiferromagnet C9H18N2CuBr4". United States. https://doi.org/10.1103/PhysRevB.89.174432.
@article{osti_1265300,
title = {Magnetic ordering induced by interladder coupling in the spin-1/2 Heisenberg two-leg ladder antiferromagnet C9H18N2CuBr4},
author = {Hong, Tao and Schmidt, K. P. and Coester, K. and Awwadi, F. F. and Turnbull, M. M. and Qiu, Y. and Rodriguez-Rivera, J. A. and Zhu, M. and Ke, X. and Aoyama, C. P. and Takano, Y. and Cao, Huibo and Tian, Wei and Ma, Jie and Custelcean, Radu and Zhou, H. D. and Matsuda, Masaaki},
abstractNote = {In this article, we present specific-heat and neutron-scattering results for the S=1/2 quantum antiferromagnet (dimethylammonium)(3,5-dimethylpyridinium)CuBr4. The material orders magnetically at TN=1.99(2) K, and magnetic excitations are accompanied by an energy gap of 0.30(2) meV due to spin anisotropy. The system is best described as coupled two-leg spin-1/2 ladders with the leg exchange Jleg=0.60(2) meV, rung exchange Jrung=0.64(9) meV, interladder exchange Jint=0.19(2) meV, and an interaction-anisotropy parameter λ=0.93(2), according to inelastic neutron-scattering measurements. In contrast to most spin ladders reported to date, the material is a rare example in which the interladder coupling is very near the critical value required to drive the system to a Néel-ordered phase without the assistance of a magnetic field.},
doi = {10.1103/PhysRevB.89.174432},
url = {https://www.osti.gov/biblio/1265300}, journal = {Physical Review B},
issn = {2469-9950},
number = 17,
volume = 89,
place = {United States},
year = {2014},
month = {5}
}

Works referenced in this record:

Spectral and Thermodynamic Properties of a Strong-Leg Quantum Spin Ladder
journal, April 2012


Thermodynamics and spin gap of the Heisenberg ladder calculated by the look-ahead Lanczos algorithm
journal, November 1994


The structure of operators in effective particle-conserving models
journal, July 2003


Neutron scattering from a coordination polymer quantum paramagnet
journal, September 2006


Field-controlled magnetic order in the quantum spin-ladder system ( Hpip ) 2 CuBr 4
journal, January 2009


Microscopic model for Bose-Einstein condensation and quasiparticle decay
journal, November 2011


Critical properties of gapped spin-chains and ladders in a magnetic field
journal, March 1997


DAVE: A Comprehensive Software Suite for the Reduction, Visualization, and Analysis of Low Energy Neutron Spectroscopic Data
journal, November 2009

  • Azuah, Richard Tumanjong; Kneller, Larry R.; Qiu, Yiming
  • Journal of Research of the National Institute of Standards and Technology, Vol. 114, Issue 6
  • https://doi.org/10.6028/jres.114.025

Dynamics of Composite Haldane Spin Chains in IPA CuCl 3
journal, February 2006


Field-Induced Tomonaga-Luttinger Liquid Phase of a Two-Leg Spin-1/2 Ladder with Strong Leg Interactions
journal, September 2010


One- and Two-Triplon Spectra of a Cuprate Ladder
journal, January 2007


Incommensurate dynamic correlations in the quasi-two-dimensional spin liquid BiCu 2 PO 6
journal, July 2013


Recent advances in magnetic structure determination by neutron powder diffraction
journal, October 1993


MACS—a new high intensity cold neutron spectrometer at NIST
journal, January 2008


Magnetic properties of the S = 1 2 quasi-one-dimensional antiferromagnet CaCu 2 O 3
journal, March 2001


Excitations from a Bose-Einstein Condensate of Magnons in Coupled Spin Ladders
journal, April 2007


Symmetric and asymmetric excitations of a strong-leg quantum spin ladder
journal, September 2013


Strong Rail Spin 1 / 2 Antiferromagnetic Ladder Systems: (Dimethylammonium)(3,5-Dimethylpyridinium)CuX 4 , X = Cl, Br
journal, October 2008


Critical phenomena and renormalization-group theory
journal, October 2002


Neutron scattering evidence for isolated spin- 1 2 ladders in ( C 5 D 12 N ) 2 CuBr 4
journal, September 2009


Direct Observation of Magnon Fractionalization in the Quantum Spin Ladder
journal, March 2009


Statics and dynamics of weakly coupled antiferromagnetic spin- 1 2 ladders in a magnetic field
journal, February 2011


Perturbation theory by flow equations: dimerized and frustrated S = 1/2 chain
journal, January 2000


Nearly critical ground state of LaCuO 2.5
journal, March 1997


Coupled ladders in a magnetic field
journal, May 1999


Excitation spectrum of Heisenberg spin ladders
journal, February 1993