TY - JOUR
T1 - Behaviour of paramagnetic light rare earth ions in LRE-123 superconductors
AU - Jirsa, M.
AU - Rameš, M.
AU - Muralidhar, M.
AU - Volochová, D.
AU - Diko, P.
N1 - Funding Information:
The authors M.J. and M.R. acknowledge support from the grant No. ME10069 (ESO) of Ministry of Education, Youth and Sports of the Czech Republic. D.V. and P.D. appreciate support from grants ITMS 26 220220061 and ITMS 26220220041 from the European Regional Development Fund, from the VE GA project No. 2/0211/10, and from project ERANET-ESO.
PY - 2013
Y1 - 2013
N2 - The slightly curved paramagnetic background (due to Brillouin dependence) of the paramagnetic light rare earth ions in 123 superconductors mixes below Tc with reversible magnetization, which hinders evaluation of the associated thermodynamic characteristics. We propose a method how to determine the effective number of magnetons per ion, the principal parameter of the Brillouin function course, even in materials with pores, with unknown or varying density and/or the local composition. The method was tested on various types of compounds containing Gd ions, like pure Gd-211, tetragonal Gd-123, (Y,Gd)-123, and (Nd,Eu,Gd)-123 and on orthorhombic (oxygenated) Gd-123 and (Nd,Eu,Gd)-123.
AB - The slightly curved paramagnetic background (due to Brillouin dependence) of the paramagnetic light rare earth ions in 123 superconductors mixes below Tc with reversible magnetization, which hinders evaluation of the associated thermodynamic characteristics. We propose a method how to determine the effective number of magnetons per ion, the principal parameter of the Brillouin function course, even in materials with pores, with unknown or varying density and/or the local composition. The method was tested on various types of compounds containing Gd ions, like pure Gd-211, tetragonal Gd-123, (Y,Gd)-123, and (Nd,Eu,Gd)-123 and on orthorhombic (oxygenated) Gd-123 and (Nd,Eu,Gd)-123.
KW - 123 superconductors
KW - Brillouin function
KW - Light rare earth ions
KW - Paramagnetism
KW - Reversible magnetization
KW - Thermodynamic properties
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U2 - 10.1016/j.phpro.2013.04.053
DO - 10.1016/j.phpro.2013.04.053
M3 - Conference article
AN - SCOPUS:84902150281
SN - 1875-3884
VL - 45
SP - 65
EP - 68
JO - Physics Procedia
JF - Physics Procedia
T2 - 25th International Symposium on Superconductivity, ISS 2012
Y2 - 3 December 2012 through 5 December 2012
ER -