<prompt> Gadzira shanduro yakaoma zvikuru yemutsara uyu Peter Grünberg May 18, 1939 inyanzvi yefizikisi yeGermany.  <response>: Chokwadika, shanduro yakaoma zvikuru yemutsara wacho ndeiyi Peter Grünberg May 18, 1939 inyanzvi yefizikisi yeGermany, uye mubayiro weNobel muFizikisi nokuda kwekuwana kwake kunoguma naAlbert Fert we giant magnetoresistance iyo yakaunza kubudirira mune gigabyte hard disks. 