Figure 3
From: Dipolar Magnetism in Ordered and Disordered Low-Dimensional Nanoparticle Assemblies
(a) Bright-field TEM images and (b) holographic magnetic field maps obtained from ~15 nm Co particle chains of increasing width numbered I−VII at remanence after magnetic saturation.
CN = coordination number ( = average number of nearest neighbors), σg = geometric disorder, σm = magnetic disorder (angle measured in radians), M = relative net magnetic moment of chain. Phase contour spacing as in Fig. 2.
