Kikuchi rings from polycrystalline platinum films with a 〈111〉 fiber axis

Abstract

Platinum films were grown on mica substrates in ultrahigh vacuum. These films have a strong 〈111〉 fiber axis orientation as found by low energy electron diffraction, reflection high energy electron diffraction and transmission electron diffraction studies. A new form of Kikuchi pattern, namely Kikuchi rings, was found in the diffraction pattern of these oriented polycrystalline films. This is the first time that a Kikuchi pattern has been reported from a polycrystalline film with a fiber axis.