Cole BE, Chamberlain JM, Henini M, Cheng T, Batty W, Wittlin A, Perenboom JAAJ, Ardavan A, Polisski A, Singleton J1997Journal article Journal:PHYSICAL REVIEW BVolume:55Issue:4, pp.2503 - 2511No abstract available DOI10.1103/PhysRevB.55.2503