scholarly journals Heisenberg exchange parameters of molecular magnets from the high-temperature susceptibility expansion

2001 ◽  
Vol 64 (22) ◽  
Author(s):  
Heinz-Jürgen Schmidt ◽  
Jürgen Schnack ◽  
Marshall Luban
Keyword(s):  
High Temperature ◽  
Molecular Magnets ◽  
Heisenberg Exchange ◽  
Temperature Susceptibility ◽  
Exchange Parameters

MAGNETIC BEHAVIOR OF IRON IONS IN THE P2O5·CaO GLASS MATRIX

2003 ◽  
Vol 17 (24) ◽  
pp. 1271-1275 ◽  
Author(s):  
I. ARDELEAN ◽  
C. ANDRONACHE ◽  
P. PǍŞCUŢǍ
Keyword(s):  
Magnetic Susceptibility ◽  
High Temperature ◽  
Magnetic Moment ◽  
Glass Matrix ◽  
Magnetic Behavior ◽  
Iron Ions ◽  
Ion Content ◽  
Dipole Interactions ◽  
Valence States ◽  
Temperature Susceptibility

The temperature dependence of the magnetic susceptibility of x Fe 2 O 3·(100-x)-[ P 2 O 5· CaO ] glasses with 0<x≤50 mol % have been investigated. These data revealed that the valence states and the distribution of iron ions in the glass matrix depend on the Fe 2 O 3 content. For the glasses with x≤1 mol % only Fe 3+ ions are evidenced. In the case of the glasses with 3≤x≤35 mol % both Fe 3+ and Fe 2 ions co-exist in the P 2 O 5· CaO glass matrix, the Fe 2+ ion content is higher than that of the Fe 3+ ions for glasses with x≥10 mol %. For the glasses with x>35 mol %, the evaluated values of the μ eff indicate either the presence of Fe + ions or the coordination influence on the magnetic moment of iron ions, but the presence of small quantities of the antiferromagnetic or ferrimagnetic interactions between iron ions in studied temperature range cannot be excluded. The high temperature susceptibility results indicate that the iron ions are isolated or participate in dipole-dipole interactions for glasses with x≤35 mol % and are antiferromagnetically coupled for higher contents of Fe 2 O 3.

ChemInform Abstract: The Effect of Fe Doping on the High Temperature Susceptibility of YBa2Cu3O6+y.

ChemInform ◽  
2010 ◽  
Vol 23 (21) ◽  
pp. no-no
Author(s):  
A. J. TWIN ◽  
J. S. ABELL ◽  
I. R. HARRIS
Keyword(s):  
High Temperature ◽  
Fe Doping ◽  
Temperature Susceptibility

High-temperature susceptibility behavior of(Cu3Pt)1−xMnxspin-glasses

1984 ◽  
Vol 29 (7) ◽  
pp. 4144-4146 ◽  
Author(s):  
A. F. J. Morgownik ◽  
J. A. Mydosh ◽  
C. L. Foiles
Keyword(s):  
High Temperature ◽  
Temperature Susceptibility

High temperature susceptibility, valence and volume anomaly of some Ce-compounds

1985 ◽  
Vol 47-48 ◽  
pp. 75-78 ◽  
Author(s):  
P. Weidner ◽  
K. Keulerz ◽  
R. Löhe ◽  
B. Roden ◽  
J. Röhler ◽  
...  
Keyword(s):  
High Temperature ◽  
Temperature Susceptibility ◽  
Volume Anomaly

ChemInform Abstract: Partial Spin Ordering and Complex Magnetic Structure in BaYFeO4: A Neutron Diffraction and High Temperature Susceptibility Study.

ChemInform ◽  
2014 ◽  
Vol 45 (13) ◽  
pp. no-no
Author(s):  
Corey M. Thompson ◽  
John E. Greedan ◽  
V. Ovidiu Garlea ◽  
Roxana Flacau ◽  
Malinda Tan ◽  
...  
Keyword(s):  
High Temperature ◽  
Neutron Diffraction ◽  
Magnetic Structure ◽  
Spin Ordering ◽  
Susceptibility Study ◽  
Temperature Susceptibility

Crystal-field effects and high-temperature susceptibility of CoBr2·6H2O

1975 ◽  
Vol 12 (9) ◽  
pp. 3859-3865 ◽  
Author(s):  
J. P. A. M. Hijmans ◽  
Q. A. G. van Vlimmeren ◽  
W. J. M. de Jonge
Keyword(s):  
High Temperature ◽  
Crystal Field ◽  
Field Effects ◽  
Temperature Susceptibility
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