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Enhancing Electron Mobility at the LaAlO 3 /SrTiO 3 Interface by Surface Control
Author(s) -
Xie Yanwu,
Bell Christopher,
Hikita Yasuyuki,
Harashima Satoshi,
Hwang Harold Y.
Publication year - 2013
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.201301798
Subject(s) - materials science , electron mobility , electron , surface (topology) , interface (matter) , condensed matter physics , nanotechnology , chemical physics , optoelectronics , composite material , chemistry , physics , geometry , mathematics , quantum mechanics , capillary number , capillary action
Mobility of electrons confined at the LaAlO 3 /SrTiO 3 interface is significantly enhanced by surface control using surface charges and adsorbates, reaching a low temperature value more than 20 000 cm 2 V −1 s −1 . A uniform trend that mobility increases with decreasing sheet carrier density is observed.