Substrate-induced anomalous electrical transport and magnetic transitions in epitaxial La0.66Sr0.33MnO3 films grown on (001) BaTiO3 substrates. Nath, T., Lee, M., & Eom, C. In Rzchowski, MS, Kawasaki, M, Millis, A., VonMolnar, S, & Rajeswari, M, editors, MAGNETORESISTIVE OXIDES AND RELATED MATERIALS, volume 602, of MATERIALS RESEARCH SOCIETY SYMPOSIUM PROCEEDINGS, pages 201-206, 2001. Mat Res Soc. Symposium on Magnetoresistive Oxides and Related Materials held at the 1999 MRS Fall Meeting, BOSTON, MA, NOV 29-DEC 02, 1999abstract bibtex Effects of drastic change of 3-dimensional films' lattice strain by substrate structural transformations on the transport and magnetic properties of tensile strained epitaxial La(0.6)6Sr(0.33)MnO(3) thin films were studied using (001) BaTiO3 as the templates. These films exhibit dramatic jumps in electrical resistance and magnetization at temperatures very close to different crystallographic structural change of BaTiO3 substrate. Application of high magnetic field (50 kOe) suppresses both the electrical transport and magnetization jumps. The observed low-field sharp transitions correspond sudden changes in magnetic anisotropy, caused by the structural transformation of the substrate, The magnetic easy axis Des in the film plane along [100] direction having a strong correlation with the substrate-induced 3-dimensional strain states as determined by the normal and grazing incidence x-ray diffraction. The sudden substrate structural transformations imposes an additional drastic sharp change of the film strain which is found to reorient the magnetic easy axis within the film plane.
@inproceedings{ ISI:000171563600028,
Author = {Nath, TK and Lee, MK and Eom, CB},
Editor = {{Rzchowski, MS and Kawasaki, M and Millis, AJ and VonMolnar, S and Rajeswari, M}},
Title = {{Substrate-induced anomalous electrical transport and magnetic
transitions in epitaxial La0.66Sr0.33MnO3 films grown on (001) BaTiO3
substrates}},
Booktitle = {{MAGNETORESISTIVE OXIDES AND RELATED MATERIALS}},
Series = {{MATERIALS RESEARCH SOCIETY SYMPOSIUM PROCEEDINGS}},
Year = {{2001}},
Volume = {{602}},
Pages = {{201-206}},
Note = {{Symposium on Magnetoresistive Oxides and Related Materials held at the
1999 MRS Fall Meeting, BOSTON, MA, NOV 29-DEC 02, 1999}},
Organization = {{Mat Res Soc}},
Abstract = {{Effects of drastic change of 3-dimensional films' lattice strain by
substrate structural transformations on the transport and magnetic
properties of tensile strained epitaxial La(0.6)6Sr(0.33)MnO(3) thin
films were studied using (001) BaTiO3 as the templates. These films
exhibit dramatic jumps in electrical resistance and magnetization at
temperatures very close to different crystallographic structural change
of BaTiO3 substrate. Application of high magnetic field (50 kOe)
suppresses both the electrical transport and magnetization jumps. The
observed low-field sharp transitions correspond sudden changes in
magnetic anisotropy, caused by the structural transformation of the
substrate, The magnetic easy axis Des in the film plane along {[}100]
direction having a strong correlation with the substrate-induced
3-dimensional strain states as determined by the normal and grazing
incidence x-ray diffraction. The sudden substrate structural
transformations imposes an additional drastic sharp change of the film
strain which is found to reorient the magnetic easy axis within the film
plane.}},
ISSN = {{0272-9172}},
ISBN = {{1-55899-510-2}},
ResearcherID-Numbers = {{Eom, Chang-Beom/I-5567-2014}},
Unique-ID = {{ISI:000171563600028}},
}
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These films exhibit dramatic jumps in electrical resistance and magnetization at temperatures very close to different crystallographic structural change of BaTiO3 substrate. Application of high magnetic field (50 kOe) suppresses both the electrical transport and magnetization jumps. The observed low-field sharp transitions correspond sudden changes in magnetic anisotropy, caused by the structural transformation of the substrate, The magnetic easy axis Des in the film plane along [100] direction having a strong correlation with the substrate-induced 3-dimensional strain states as determined by the normal and grazing incidence x-ray diffraction. 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These films\n exhibit dramatic jumps in electrical resistance and magnetization at\n temperatures very close to different crystallographic structural change\n of BaTiO3 substrate. Application of high magnetic field (50 kOe)\n suppresses both the electrical transport and magnetization jumps. The\n observed low-field sharp transitions correspond sudden changes in\n magnetic anisotropy, caused by the structural transformation of the\n substrate, The magnetic easy axis Des in the film plane along {[}100]\n direction having a strong correlation with the substrate-induced\n 3-dimensional strain states as determined by the normal and grazing\n incidence x-ray diffraction. 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