Temperature dependence of magnetic susceptibility

Ishikawa etal. proposed an approach for the determination of the ligand-field (LF) parameters of a set of isostructural lanthanide complexes. This method consists of a simultaneous fit of the temperature dependence of magnetic susceptibilities and NMR spectra for the whole isostructural series [18]. In order to avoid over-parametrization a key restriction is imposed each parameter is expressed as a linear function of the number of f electrons, n ... 

Fig. 3 For 3 Ln, left temperature dependence of magnetic susceptibilities right impendence spectroscopy of the electrical resistances at room temperature...

Temperature dependence of magnetic susceptibility of the PF6 salt was measured from 300 to 4 K at 5 T [35], The spin susceptibility of this salt gradually decreases from 300 to 50 K. Below 50 K, the susceptibility exhibits a rapid decrease accompanied by anisotropic temperature dependence, which is an indication of the long-range antiferromagnetic ordering. A one-dimensional Heisenberg model is... 

The temperature dependence of magnetic susceptibility x measured on single crystals reveals magnetic ID behaviour. Below 50 K x is strongly anisotropic with the trigonal axis corresponding to the easy axis of magnetization and therefore to... 

Harrison R.J. and Putnis A. (1999) Determination of the mechanism of cation ordering in magnesioferrite (MgFe204) from the time- and temperature-dependence of magnetic susceptibility. Phys. Chem. Miner. 26, 322-332. 

Abstract. Two forms of CoO have been prepared from spec, pure Co metal and CoC03 and the magnetic susceptibility of CoO(I) and CoO(II) examined over a temperature range300-700 deg. K. The magnetic data of CoO(II) have shown an anomalous temperature dependence of that in this temperature range CoO(II) passes into CoO(I). This result is in conformity with Mossbauer spectra. Furthermore, D.T.A and temperature dependence of magnetic susceptibility of CoO(II) arises from a first order phase transition. 

Magnetic (Natural) Multipoles. Magnetic dipole. In 1905 Langevin, when aiming at an explanation of Curie s law, i.e. of the temperature dependence of magnetic susceptibility in paramagnetics, attributed a priori and classically a permanent magnetic moment to the microsystems. 

Penney and Schlapp (35) many years ago discussed the influence of crystal field on the temperature dependence of magnetic susceptibility x in paramagnetic materials. X may be computed from the fundamental Van Vleck equation (36)... 

Temperature dependence of magnetic susceptibility of the TMBP.HCNB complex... 

Fig. 19-3. Diagrams indicating the qualitative temperature-dependence of magnetic susceptibility for (a) simple paramagnetism, (b) ferromagnetism, and (c) antiferromagnetism.

Fig. 8.31. Temperature dependence of magnetic susceptibilities for the 4TXg term at different applied fields m—mean magnetic susceptibility d—differential magnetic susceptibility (solid) a— approximate magnetic susceptibility based on the van Vleck equation.

The present book first recapitulates all the necessary mathematical background (Chapter 1). An overview of macroscopic magnetic properties is then presented (Chapter 2). Formulation of magnetic parameters and methods of their calculation are given in Chapters 3-6. A brief summary of magnetic behaviour is presented (Chapter 7). The core of the book deals with the temperature dependence of magnetic susceptibility for mononuclear complexes, dimers and exchange-coupled clusters (Chapters 8-11). 

---