TY - JOUR
KW - Pulsed laser deposition
KW - Lattice constants
KW - Film growth
KW - Temperature measurement
KW - Lanthanum compounds
KW - Strain
KW - Ultrathin films
KW - Curie temperatures
KW - Magnetic circular dichroism (MCD)
KW - Photoemitted electrons
KW - Saturation moments
KW - Compressive stress
KW - Magnetic hysteresis
KW - Magnetometers
KW - SQUIDs
AU - J Dvorak
AU - Y.U Idzerda
AU - S.B Ogale
AU - S Shinde
AU - T Wu
AU - T Venkatesan
AU - R Godfrey
AU - Ramamoorthy Ramesh
AB - We report results on strained La23 Ca13 Mn O3 (LCMO) films that are able to distinguish between true strain effects and effects due simply to the reduced film thickness. Biaxially strained LCMO films were grown on SrTi O3, NdGa O3, and LaAl O3. The films on SrTi O3 and LaAl O3 are elastically strained and those on NdGa O3 are only slightly strained. We observe that both the saturation moment (Msat) and the Curie temperature (TC) are suppressed as the films become thinner, regardless of the strain. Thus, the decrease in Msat and TC is due to the two-dimensional nature of the films and not the strain. © 2005 American Institute of Physics.
BT - Journal of Applied Physics
DO - 10.1063/1.1845974
LA - eng
M1 - 10
N1 - cited By 32
N2 - We report results on strained La23 Ca13 Mn O3 (LCMO) films that are able to distinguish between true strain effects and effects due simply to the reduced film thickness. Biaxially strained LCMO films were grown on SrTi O3, NdGa O3, and LaAl O3. The films on SrTi O3 and LaAl O3 are elastically strained and those on NdGa O3 are only slightly strained. We observe that both the saturation moment (Msat) and the Curie temperature (TC) are suppressed as the films become thinner, regardless of the strain. Thus, the decrease in Msat and TC is due to the two-dimensional nature of the films and not the strain. © 2005 American Institute of Physics.
PY - 2005
T2 - Journal of Applied Physics
TI - Are strain-induced effects truly strain induced? A comprehensive study of strained LCMO thin films
VL - 97
SN - 00218979
ER -