attoPUBLICATIONS attoCATALOG-2015/16 | Page 41

Selected Applications Domain Imaging in BaFeO The 15 µm x 15 µm sized image shows a sample of BaFeO recorded with an attoSHPM, recorded at 4.2 K. The SHPM sensor was kept in a constant height of about 200 nm. The color scale spans 106 mT (dark to bright), while the S/N ratio of this measurement yields an exceptional 50 000:1. Note that SHPM records absolute field strength as opposed to MFM techniques, that record only field gradients. (attocube application labs, 2011; sample courtesy of R. Kramer, Institut Néel, CNRS, Grenoble) Vortex Imaging via Scanning Hall Probe Microscopy SHPM measurements on a degraded Bi2Sr2CaCu2O8+x substrate have been performed demonstrating strong surface pinning effects at 4.2 K and 2.5 Gauss external magnetic field. The figure shows the vortex distribution measured in constant height of approx. 100 nm above the surface. (attocube applications labs, 2011; sample courtesy of A. Erb, TU Munich, Germany) attoDRY LAB Dry Measurement Systems attoSHPM+ PAGE 39