TY - JOUR
AU - M Huijben
AU - L.W Martin
AU - Y.-H Chu
AU - M.B Holcomb
AU - P Yu
AU - G Rijnders
AU - D.H.A Blank
AU - Ramamoorthy Ramesh
AB - Detailed analysis of transport, magnetism, and x-ray absorption spectroscopy measurements on ultrathin La0.7 Sr0.3 MnO3 films with thicknesses from 3 to 70 unit cells resulted in the identification of a lower critical thickness for a nonmetallic nonferromagnetic layer at the interface with the SrTiO3 (001) substrate of only three unit cells (∼12 Å). Furthermore, linear-dichroism measurements demonstrate the presence of a preferred (x2 - y2) in-plane orbital ordering for all layer thicknesses without any orbital reconstruction at the interface. A crucial requirement for the accurate study of these ultrathin films is a controlled growth process, offering the coexistence of layer-by-layer growth and bulklike magnetic/transport properties. © 2008 The American Physical Society.
BT - Physical Review B - Condensed Matter and Materials Physics
DO - 10.1103/PhysRevB.78.094413
LA - eng
M1 - 9
N1 - cited By 289
N2 - Detailed analysis of transport, magnetism, and x-ray absorption spectroscopy measurements on ultrathin La0.7 Sr0.3 MnO3 films with thicknesses from 3 to 70 unit cells resulted in the identification of a lower critical thickness for a nonmetallic nonferromagnetic layer at the interface with the SrTiO3 (001) substrate of only three unit cells (∼12 Å). Furthermore, linear-dichroism measurements demonstrate the presence of a preferred (x2 - y2) in-plane orbital ordering for all layer thicknesses without any orbital reconstruction at the interface. A crucial requirement for the accurate study of these ultrathin films is a controlled growth process, offering the coexistence of layer-by-layer growth and bulklike magnetic/transport properties. © 2008 The American Physical Society.
PY - 2008
T2 - Physical Review B - Condensed Matter and Materials Physics
TI - Critical thickness and orbital ordering in ultrathin La0.7 Sr0.3 MnO3 films
VL - 78
SN - 10980121
ER -