Journal
Article title
Authors
Title variants
Languages of publication
Abstracts
We investigate the frustrated two-dimensional S = 1/2 next nearest neighbor anisotropic Heisenberg antiferromagnet on a square lattice as described by the J_{1a,b} - J_2 model. We use spin-wave theory and exact diagonalization for finite tiles including a new method for the finite size scaling procedure. We present results obtained from the extension of our numerical method to finite magnetic fields as well as from spin-wave theory. The induced uniform and the staggered moment in the antiferromagnetically ordered phases in the presence of a magnetic field are calculated. They deviate strongly from classical behaviour depending on frustration ratio J_2/J_{1a,b} and the J_{1a,b} exchange anisotropy. The magnetization becomes strongly nonlinear and is suppressed from the classical value. This is due to enhanced quantum fluctuations already at moderate frustration.
Discipline
Journal
Year
Volume
Issue
Pages
1089-1091
Physical description
Dates
published
2012-05
Contributors
author
- Max-Planck-Institut für Chemische Physik fester Stoffe, 01187 Dresden, Germany
author
- Max-Planck-Institut für Chemische Physik fester Stoffe, 01187 Dresden, Germany
author
- Max-Planck-Institut für Chemische Physik fester Stoffe, 01187 Dresden, Germany
References
- 1. B. Schmidt, M. Siahatgar, P. Thalmeier, Phys. Rev. B 81, 165101 (2010)
- 2. B. Schmidt, M. Siahatgar, P. Thalmeier, Phys. Rev. B 83, 075123 (2011)
- 3. E.E. Kaul, H. Rosner, N. Shannon, R.V. Shpanchenko, C. Geibel, J. Magn. Magn. Mater. 272-276, 922 (2004)
- 4. N.S. Kini, E.E. Kaul, C. Geibel, J. Phys., Condens. Matter 18, 1303 (2006)
- 5. A.A. Tsirlin, H. Rosner, Phys. Rev. B 79, 214417 (2009)
- 6. N. Shannon, B. Schmidt, K. Penc, P. Thalmeier, Eur. Phys. J. B 38, 599 (2004)
- 7. B. Schmidt, P. Thalmeier, N. Shannon, Phys. Rev. B 76, 125113 (2007)
- 8. B. Schmidt, M. Siahatgar, P. Thalmeier, A.A. Tsirlin, J. Phys., Conf. Ser. 200, 022055 (2010)
- 9. R.A. Ewings, T.G. Perring, R.I. Bewley, T. Guidi, M.J. Pitcher, D.R. Parker, S.J. Clarke, A.T. Boothroyd, Phys. Rev. B 78, 220501(R) (2008)
- 10. R.J. McQueeney, S.O. Diallo, V.P. Antropov, G.D. Samolyuk, C. Broholm, N. Ni, S. Nandi, M. Yethiraj, J.L. Zarestky, J.J. Pulikkotil, A. Kreyssig, M.D. Lumsden, B.N. Harmon, P.C. Canfield, A.I. Goldman, Phys. Rev. Lett. 101, 227205 (2008)
- 11. S.O. Diallo, V.P. Antropov, T.G. Perring, C. Bro- holm, J.J. Pulikkotil, N. Ni, S.L. Bud'ko, P.C. Canfield, A. Kreyssig, A.I. Goldman, R.J. McQueeney, Phys. Rev. Lett. 102, 187206 (2009)
- 12. J. Zhao, D.T. Adroja, D.-X. Yao, R. Bewley, S. Li, X.F. Wang, G. Wu, X.H. Chen, J. Hu, P. Dai, Nat. Phys. 5, 555 (2009)
- 13. P. Thalmeier, M.E. Zhitomirsky, B. Schmidt, N. Shannon, Phys. Rev. B 77, 104441 (2008)
Document Type
Publication order reference
Identifiers
YADDA identifier
bwmeta1.element.bwnjournal-article-appv121n5-6p29kz