TY - JOUR
AU - J Seidel
AU - P Maksymovych
AU - Y Batra
AU - A Katan
AU - S.-Y Yang
AU - Q He
AU - A.P Baddorf
AU - S.V Kalinin
AU - C.-H Yang
AU - J.-C Yang
AU - Y.-H Chu
AU - E.K.H Salje
AU - H Wormeester
AU - M Salmeron
AU - Ramamoorthy Ramesh
AB - The transport physics of domain wall conductivity in La-doped bismuth ferrite (BiFeO3) has been probed using variable temperature conducting atomic force microscopy and piezoresponse force microscopy in samples with arrays of domain walls in the as-grown state. Nanoscale current measurements are investigated as a function of bias and temperature and are shown to be consistent with distinct electronic properties at the domain walls leading to changes in the observed local conductivity. Our observation is well described within a band picture of the observed electronic conduction. Finally, we demonstrate an additional degree of control of the wall conductivity through chemical doping with oxygen vacancies, thus influencing the local conductive state. © 2010 The American Physical Society.
BT - Physical Review Letters
DO - 10.1103/PhysRevLett.105.197603
LA - eng
M1 - 19
N1 - cited By 260
N2 - The transport physics of domain wall conductivity in La-doped bismuth ferrite (BiFeO3) has been probed using variable temperature conducting atomic force microscopy and piezoresponse force microscopy in samples with arrays of domain walls in the as-grown state. Nanoscale current measurements are investigated as a function of bias and temperature and are shown to be consistent with distinct electronic properties at the domain walls leading to changes in the observed local conductivity. Our observation is well described within a band picture of the observed electronic conduction. Finally, we demonstrate an additional degree of control of the wall conductivity through chemical doping with oxygen vacancies, thus influencing the local conductive state. © 2010 The American Physical Society.
PY - 2010
T2 - Physical Review Letters
TI - Domain wall conductivity in La-doped BiFeO3
VL - 105
SN - 00319007
ER -