Source: wikibot/peter-grunberg
= Peter Grünberg
{wiki=Peter_Grünberg}
Peter Grünberg was a German physicist best known for his discovery of the giant magnetoresistance (GMR) effect, which has had a significant impact on the development of hard disk drives and magnetic sensors. His work in this field earned him the Nobel Prize in Physics in 2007, which he shared with Albert Fert, who independently discovered a similar effect.