Journal
Article title
Title variants
Languages of publication
Abstracts
Magnetic susceptibility and X-band electron spin resonance study of a two-dimensional Heisenberg antiferromagnetic system CuBr_2(bipy), where bipy = C_{10}H_8N_2 is 4,4'-bipyridyl, has been performed in the temperature range from 300 K down to 2 K. A rhombic anisotropy of the g-factor was obtained from X-band EPR measurements with g_{x} = 2.037, g_{y} = 2.100 and g_{z} = 2.219. The temperature dependence of the magnetic susceptibility with a round maximum observed at 28 K suggests antiferromagnetic type of short-range order. No signature of the magnetic long-range order in studied compound was observed. The comparison of the magnetic susceptibility data with a two-dimensional rectangular Heisenberg model yields the values of intralayer exchange couplings J/k_{B} = - 47 K and J'/k_{B} = - 9.4 K.
Discipline
- 75.30.Et: Exchange and superexchange interactions(see also 71.70.Gm Exchange interactions)
- 75.50.Ee: Antiferromagnetics
- 76.30.-v: Electron paramagnetic resonance and relaxation(see also 33.35.+r Electron resonance and relaxation in atomic and molecular physics; 87.80.Lg Magnetic and paramagnetic resonance in biological physics)
Journal
Year
Volume
Issue
Pages
973-974
Physical description
Dates
published
2010-11
Contributors
author
- Centre of Low Temperature Physics, P.J. Šafárik University, Park Angelinum 9, SK-04154 Košice, Slovak Republic
author
- Centre of Low Temperature Physics, P.J. Šafárik University, Park Angelinum 9, SK-04154 Košice, Slovak Republic
author
- Centre of Low Temperature Physics, P.J. Šafárik University, Park Angelinum 9, SK-04154 Košice, Slovak Republic
author
- Centre of Low Temperature Physics, P.J. Šafárik University, Park Angelinum 9, SK-04154 Košice, Slovak Republic
author
- Centre of Low Temperature Physics, P.J. Šafárik University, Park Angelinum 9, SK-04154 Košice, Slovak Republic
author
- Institute for Low Temperature Physics and Engineering, Lenin Av. 47, 310164 Kharkov, Ukraine
author
- National High Magnetic Field Laboratory, Tallahassee, FL 32310-3706, USA
- Department of Physics and Center for Condensed Matter Sciences, University of Florida, Gainesville FL 32611-8440, USA
author
- National High Magnetic Field Laboratory, Tallahassee, FL 32310-3706, USA
References
- 1. M. Havilio, A. Auerbach, Phys. Rev. Lett. 83, 4848 (1999); K. Kuroki, H. Aoki, Phys. Rev. B 60, 3060 (1999)
- 2. N. Mermin, H. Wagner, Phys. Rev. Lett. 17, 1133 (1966)
- 3. Y.J. Kim, R.J. Birgenau, Phys. Rev. B 62, 6378 (2000)
- 4. N. Masciocchi, P. Cairati, L. Carlucci, G. Mezza, G. Ciani, A. Sironi, J. Chem. Soc., Dalton Trans., 2739 (1996)
- 5. E. Čižmár, M. Kajňaková, M. Orendáč, A. Oredáčová, A. Feher, T. Papageorgiou, Czech. J. Phys. 54, D555 (2004)
- 6. O. Kahn, Molecular Magnetism, Wiley, New York 1985
- 7. S. Stoll, A. Schweiger, J. Magn. Reson. 178, 42 (2006)
- 8. R.T. Butcher, C.P. Landee, M.M. Turnbull, F. Xiao, Inorg. Chim. Acta 361, 3654 (2008)
Document Type
Publication order reference
Identifiers
YADDA identifier
bwmeta1.element.bwnjournal-article-appv118n5106kz