Introduction to MFM	Instrumentation	Projects
Gallery	Publications	Team

Domain Growth on La_0,7Ca_0,3MnO₃

	-		=
B = 130 mT		B = 135 mT		Difference Image

The stability at low temperatures and the careful microscope design enable a detailed study of domain growth in external magnetic fields. The two images on the left show the maze type domain structure of an perovskite manganite thin film in two slightly different external magnetic fields. Bright areas indicate regions, where tip and sample magnetization is parallel (attractive magnetostatic interaction), while dark areas indicate an antiparallel configuration (repulsive magnetostatic interaction). It is difficult to detect any difference. However, after subtracting one image from the other, those areas, which changed their magnetization direction become clearly visible as dark spots in the right image.

previous next

Introduction to MFM | Instrumentation | Projects | Gallery | Publications | Team

impressum   © copyright 2002 by group R - university of hamburg