Inverse magnetic susceptibilities

The inverse magnetic susceptibility and the effective magnetic moment, jueff, of [Fe(HC(3,5-(CH3)2pz)3)2](BF4)2 are shown in Fig. 16 where it is immediately obvious that the magnetic properties of this complex are quite unusual [46]. Above ca. 210 K the eff of ca. 5.0 is clearly that expected of a high-spin iron(II) complex. But below ca. 190 K the moment decreases to a substantially lower value of ca. 3.7 /uB. Further, at ca. 90 K there is a small irreversible change in susceptibility and moment, a change that is associated with crystal reorientation in the applied field. The reason for the abrupt decrease in the moment at ca. 200 K to ca. 3.7 becomes apparent from a study of the Mossbauer spectra of [Fe(HC(3,5-(CH3)2pz)3)2](BF4)2. 

Fig. II. (a) Temperature dependence of the magnetization for 200-nm thick Ga, MnrAs with x =0.053. The magnetic field is applied perpendicular to the sample surface (hard axis). The inset shows the temperature dependence of the remanent magnetization (0 T) and the magnetization at 1 T in a field parallel to the film surface, (b) Temperature dependence of the saturation magnetization determined from the data shown in (a) by using ArTott plots (closed circles). Open circles show inverse magnetic susceptibility and the Curie-Weiss fit is depicted by the solid straight line (Ohno and Matsukura 2001).

Fig. 20. Inverse magnetic susceptibility of TbRtt4Pi2 vs. temperature measured at H = 1 T. Inset shows an enlarged view of susceptibility data below 20 K (Sekine et al., 2000a).

Fig. 34. Inverse magnetic susceptibility vs. absolute temperature for several samples Ro jCao sMuOj compared with LaMnOj and LaojBaojMnC, alter Goodenough and Zhou (1998).

Fig. 57. Inverse magnetic susceptibility l/x(T) of Y0.5Cao.5Mn03 and schematic picture of the magnetic state (a) PM above Tqo with formation of Zener polarons setting in below 450 K (b) PM Zener polarons order between Tqo ant-l 7n (c) CE AFI structure below 7n, after Daoud-Aladine et al. (2002).

Figure 12. Inverse magnetic susceptibility (1/x) VS. temperature (T) at 0.1 Tesla of reduced and unaltered powders of ferruginous smectite (sample SWa-1 from the Source Clay Minerals Repository of The Clay Minerals Society). Insert reports Fe2 contents as X of total Fe. (Reproduced with permission from Ref. 33. Copyright 1987 The Clay Minerals Society).

FIGURE 28 Temperature dependence of the inverse magnetic susceptibility of solvent-free Sc< C82 crystal for slow and fast cooling. 

Figure 4. Inverse magnetic susceptibility Co) versus temperature for a series of catalysts with different Co/Mo ratios.

The magnetic properties of individual transition metal ions in compounds and complexes are considered in (5ee Magnetism of Transition Metal lon. There, the properties of a given ion are assumed to be independent of the presence of any other ions. However, the possibility of /TU/jor interactions between ions is taken into account in those cases in which the temperature dependence of the inverse magnetic susceptibility deviates from the Curie law. This was accomplished by inclusion of the Weiss constant and the generation of the Curie-Weiss law. The properties of extended arrays of this type may be primarily understood in terms of single ions, and they will not be discussed here. 

Fig. 12. Temperature dependence of the inverse magnetic susceptibility of YbPtSn. The right-hand inset shows the low-temperature magnetic susceptibility, while the magnetization behavior is presented in the upper inset. From Kaczorowski et al. (1999).

Fig. 11.4. Inverse magnetic susceptibility vs temperature for (La, Th)Ce alloys with La, Th matrix compositions of 10, 45, 65, 80, 90 and lOOat.% Th [after Huber et al. (1975)].

Fig. 11.15. Inverse magnetic susceptibility vs temperature for CeSn, (open triangles), Celn, (solid circles) and CePb, (open circles). Measurements were made in a magnetic field of 19kOe [after Tsuchida and Wallace (1965)].

Temperature dependence of inverse magnetic susceptibility for Fe(S2CNR2)3 (R = n-C H2n+i). (Reproduced from Ref. 4 with permission of Deutschen Chemischen Gesellschaft.)... 

Temperature dependences of (a) effective magnetic moment, (b) inverse magnetic susceptibility, and (c) magnetization curves ( FCM, a RM, ZFCM) for (n-C4H9)4N[Fe"Fe "(mto)3]. (Reproduced from Ref. 33 with permission of MDPI Publishing.)... 

Fig. 103. Inverse magnetic susceptibility vs. temperature of TmSeg jjTea for pressures of 0.93 and 1.71 GPa. In the inset the effective moment is shown vs. pressure. The arrow at 1.4 GPa indicates the SMT. (After Boppart and Wachter 1984c.)...

FIGURE 117 The magnetization and inverse magnetic susceptibility of UGe2. Left inset represents the orthorhombic unit cell right inset depicts a typical hysteresis loop at 4.5 K measured along the easy magnetization axis (Saxena et al., 2000). 

Fig. 49. Inverse magnetic susceptibilities of UP, measured on single crystals and powdered samples.

Fig. 52. Inverse magnetic susceptibility of UAs versus temperature as a function of crystal orientation, measured on field-cooled samples.

Fig, 78. Inverse magnetic susceptibility of Tmo 94.Te, as obtained from the slope of magnetization curves at zero magnetic field, between 0.1 and 1.5 K (Ott and Hulliger 1983). 

Fig. 79. Inverse magnetic susceptibility as a function of temperature for three metallic and inter-...

Fig. 80. Temperature dependence of the inverse magnetic susceptibilities, 1/x, for YbN, YbP, YbAs and YbSb between 1.5 and 300 K (Ott et al. 1982).

Fig. 85. Inverse magnetic susceptibility of CeP. The curve approximating the measured points (circles) is calculated. The straight line represents the underlying Curie-Weiss law (Hulliger and Ott 1978),...

Fig. 10.5 Inverse magnetic susceptibility of BkF at 803 and 1205 G and BkOz at 1200 and 1603 G as a function of temperature. The solid lines are least-squares fits of the data to the Curie-IVeiss law [182], Reproduced with permission cf the authors and the American Physical Society.)...

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