Nanoscale Surface Patterns Change Coercivity of Magnetic Material (image) North Carolina State University Share Print E-Mail Caption By creating a nanoscale corduroy pattern on the surface of nickel ferrite (NFO) thin films, researchers have been able to lower the coercivity of the NFO by 30 to 80 percent, depending on the thickness of the film. Credit Goran Rasic Usage Restrictions Image credit must be given. Share Print E-Mail Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.