Field-cooled

Fig. 5.7 (A) TEM micrograph of silica-alginate-Co hybrid nanocomposites and (B) corresponding Zero Field Cool-Field Cool (ZFC/FC) susceptibility curves (H = 500 0e) indicating superparamagnetic behavior (Adapted from [34]).

Fig. 18 Field cooled (FCM), zero field cooled (ZFCM) and remnant (REM) magnetization temperature dependencies of [Mn(Cp )2][Ni(dsit)2]. From [53]...

Fig. 11 a Comparison of the observed field cooled (FC red line) and zero field cooled (ZFC black line) NMR line shape in a PMN single crystal and the homogeneous line shape (yellow dots) extracted from T2 measurements, and the dipolar... 

Figure 6.5 (a) The formation of ferritin-mediated self-assembly of FePt nanoparticles via electrostatic interactions, (b) magnetic dipole-dipole interaction of ferritins assembled with FePt nanoparticles, and (c) zero field cooling and field cooling results for the ferritin-FePt nanoparticle composite film and individual components. Reprinted with permission from Srivastava, Samanta, Jordan, et al. (2007). Copyright 2007 American Chemical Society. 

Figure 14 Critical current density vs applied magnetic field for zero field cooled case (virgin) and various field cooled values, H = SO, 100, 150, 200, 300, 400, 550, 1000 Oe. The enhancement peak value for the field cooled data vs magnetic field is shown in the inset. Ref. 48.

Figure 11 Magnetization relaxation versus log(time) at 10 K in fields applied normal to a 0.7 /un-thick T Ca BaoCujOjQ superconducting film (Tc is 108 K). The solid triangles show relaxation due to flux creep out of the film in zero applied field after cooling in a 10 kOe field and removal of the field. The open triangles represent flux creep into the film in a S00 Oe field applied following zero field cooling. The dashed lines show the fit to Eq. (13).

Ac-susceptibility measurements on (Ga,Mn)As with x = 0.042 have been performed in alternating B from 0.1-4 mT. In the temperature dependence of susceptibility, there is a sharp peak at about 48 K at 0.1 mT, which suggests a ferromagnetic phase transition. The temperature and magnetic field dependence is rather complicated and an increase of B involves additional peaks (the number of which up to 4), which may be due to domain formation and domain wall movement (Sadowski et al. 2000). There is also a report about ac-susceptibility measurements on (Ga,Mn)As with x = 0.07, which shows that there is no difference between the field-cooled and zero-field cooled ac-susceptibilities measured with B = 10 mT (Van Esch et al. 1997). 

Fig. 1. Temperature dependence of the dc magnetic susceptibility of LuNi2B2C and YNi2B2C in a magnetic field of 20 Oe. ZFC and FC means zero field cooling and field cooling, respectively (after Nagarajan et al. 1994).

Fig. 17. Field cooled magnetization measured for increasing temperature at hqH = 2.5 mT on single crystalline YNi2B2C with the two isotopes l0B (solid lines) and 11B (dotted lines), clearly indicating a boron isotope effect...

Analysis of dc zero-field cooled (ZFC) versus field cooled (FC) X versus T or XT versus T data can be quite valuable in some circumstances. For organic systems, it allows confirmation of spin-canted ordering in a sample, where spin alignment in a domain is incomplete. ZFS and FC plots will diverge at the... 

The magnetization data for these polycrystalline samples prompted a closer look with an oxygen-stoichiometric series of single-crystal samples in the range 0.15 < x < 0.50 (Zhou et al., 2001a). The zero-field-cooled (ZFC) and field-cooled (FC) magnetization M(T) under applied fields of 10 Oe, 50 Oe, and 5 kOe as well as the reciprocal magnetization M l(T)... 

---