Magnetic hysteresis loop

Fig. 5.13 Chitosan magnetic nanoparticles (A) TEM micrograph, (B) magnetization hysteresis loops for chitosan and magnetite-loaded chitosan particles. (Reprinted from [68], Copyright (2006), with permission from Elsevier).

Figure 7 Sketch of a complete magnetization hysteresis loop...

Figure 8 Partial magnetization hysteresis loop at 5 K for a superconducting YE Cu O g single crystal. The solid triangles represent the response to increasing fields while the open triangles are for decreasing fields.

Figure 10 Comparison of partial magnetization hysteresis loops at 30 and 77 K for a superconducting T Ca j Ba2Cu20o single crystal (Tc is 105 K). The lack of hysteresis at 77 K is due to weak flux pinning.

Fig. 47. Magnetic hysteresis loops for Terfecohan/(Yo.2 0.8) multilayers (a) as-deposited, (b) after annealing...

Disordered low-dimensional C60 polymers also show interesting magnetic properties. In particular, Makarova et al. [16] reported that rhombohedral C60 polymerized at high temperatures near 6 GPa showed signs of weak ferromagnetism (nonlinear susceptibility and magnetic hysteresis loops, as shown in Fig. 16) at temperatures well exceeding room temperature. This has been verified... 

Fig. 4 (a) Temperature variation of magnetization of InMnOj at 100 Oe. Inset shows the magnetic hysteresis loops at 10 and 300 K, (b) Temperature variation of the dielectric constant for different frequencies (from ref, 24),... 

Figure 66. (a) A magnetization hysteresis loop measured for [Mni2(MeC00)i5(H20)40i2]-... 

Mamiya H, Jeyadevan B. Magnetic hysteresis loop in a superparamagnehc state. IEEE Transactions on Magnetics. 2014 50 4001604. DOI 10.1109/TMAG. 2013.2274072. 

In the magnetically ordered state, (rad)2Mn2[Cu(opba)]3(DMSO)2 2H2O presents an extremely narrow magnetic hysteresis loop. The coercive field is inferior to 10 Oe. 

Fig. 19. Magnetic hysteresis loop at 1.7 K for (rad)2Co2[Cu(opba)]3 0.5DMSO SHjO.

Fig. 6.20. Magnetic hysteresis loops of Fe3gNi3c,Mo4Si5B,2 after various thermal treatments. (After Warlimont Boll, 1982.).

Figure 12.6 shows the magnetic hysteresis loops of nanocomposites with an initial particle loading of 20 wt% and 50 wt%, respectively. There was no hysteresis observed in the sample formed from the seven-hour reaction due to the dissolution of the magnetic nanoparticles in the acidic solution. The saturation magnetizatiosn (A/g) were 29.4 emu g and 45.1 emu g ... 

Fig. 42. Magnetic hysteresis loops of a sandwich Tb-Co/Nd-CoATh-Co system at 300 K. After Givord et al (1995).

The magnetic properties of SMMs are the subject of detailed investigations, and the presence of steps in the magnetic hysteresis loops, quantum tunneling, as well as quantum phase interference effects are now becoming better understood. Detailed aspects of this are discussed in Chapter 7.13. 

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