Charge-ordering in thin films of bilayered rare earth manganates

S. Parashar; A. Moreira Dos Santos; A. R. Raju; F. F. Lange; A. K. Cheetham; C. N.R. Rao

doi:10.1016/S1466-6049(00)00095-7

Charge-ordering in thin films of bilayered rare earth manganates

S. Parashar, A. Moreira Dos Santos, A. R. Raju, F. F. Lange, A. K. Cheetham, C. N.R. Rao

Research output: Contribution to journal › Article › peer-review

1 Scopus citations

Abstract

Thin films of bilayered manganates of the formula LnSr₂Mn₂O₇ (Ln=rare-earth), deposited on LaAlO₃(100) substrates by nebulized spray pyrolysis, show charge-ordering transitions in the resistivity data. The transition temperatures decrease from 205 K to 185 K as the rare-earth ionic radii decrease from Ln=La to Gd. While magnetic-fields up to 6 tesla have little effect on the charge-ordering transition, small electric currents prevent the onset of the charge-ordered state. Furthermore, the resistance decreases markedly with increasing current, with nonlinear behavior, in polycrystalline films deposited on Si(100) substrates.

Original language	English
Pages (from-to)	651-655
Number of pages	5
Journal	International Journal of Inorganic Materials
Volume	2
Issue number	6
DOIs	https://doi.org/10.1016/S1466-6049(00)00095-7
State	Published - 2000
Externally published	Yes

Funding

The work was supported by the MRSEC Program of the National Science Foundation under grant no. DMR-96-32716.

Keywords

A. Layered compounds
D. Electrical properties
Magnetic properties
Thin films

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10.1016/S1466-6049(00)00095-7

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title = "Charge-ordering in thin films of bilayered rare earth manganates",

abstract = "Thin films of bilayered manganates of the formula LnSr2Mn2O7 (Ln=rare-earth), deposited on LaAlO3(100) substrates by nebulized spray pyrolysis, show charge-ordering transitions in the resistivity data. The transition temperatures decrease from 205 K to 185 K as the rare-earth ionic radii decrease from Ln=La to Gd. While magnetic-fields up to 6 tesla have little effect on the charge-ordering transition, small electric currents prevent the onset of the charge-ordered state. Furthermore, the resistance decreases markedly with increasing current, with nonlinear behavior, in polycrystalline films deposited on Si(100) substrates.",

keywords = "A. Layered compounds, D. Electrical properties, Magnetic properties, Thin films",

author = "S. Parashar and \{Dos Santos\}, \{A. Moreira\} and Raju, \{A. R.\} and Lange, \{F. F.\} and Cheetham, \{A. K.\} and Rao, \{C. N.R.\}",

year = "2000",

doi = "10.1016/S1466-6049(00)00095-7",

language = "English",

volume = "2",

pages = "651--655",

journal = "International Journal of Inorganic Materials",

issn = "1466-6049",

number = "6",

}

TY - JOUR

T1 - Charge-ordering in thin films of bilayered rare earth manganates

AU - Parashar, S.

AU - Dos Santos, A. Moreira

AU - Raju, A. R.

AU - Lange, F. F.

AU - Cheetham, A. K.

AU - Rao, C. N.R.

PY - 2000

Y1 - 2000

N2 - Thin films of bilayered manganates of the formula LnSr2Mn2O7 (Ln=rare-earth), deposited on LaAlO3(100) substrates by nebulized spray pyrolysis, show charge-ordering transitions in the resistivity data. The transition temperatures decrease from 205 K to 185 K as the rare-earth ionic radii decrease from Ln=La to Gd. While magnetic-fields up to 6 tesla have little effect on the charge-ordering transition, small electric currents prevent the onset of the charge-ordered state. Furthermore, the resistance decreases markedly with increasing current, with nonlinear behavior, in polycrystalline films deposited on Si(100) substrates.

AB - Thin films of bilayered manganates of the formula LnSr2Mn2O7 (Ln=rare-earth), deposited on LaAlO3(100) substrates by nebulized spray pyrolysis, show charge-ordering transitions in the resistivity data. The transition temperatures decrease from 205 K to 185 K as the rare-earth ionic radii decrease from Ln=La to Gd. While magnetic-fields up to 6 tesla have little effect on the charge-ordering transition, small electric currents prevent the onset of the charge-ordered state. Furthermore, the resistance decreases markedly with increasing current, with nonlinear behavior, in polycrystalline films deposited on Si(100) substrates.

KW - A. Layered compounds

KW - D. Electrical properties

KW - Magnetic properties

KW - Thin films

UR - https://www.scopus.com/pages/publications/0034533067

U2 - 10.1016/S1466-6049(00)00095-7

DO - 10.1016/S1466-6049(00)00095-7

M3 - Article

AN - SCOPUS:0034533067

SN - 1466-6049

VL - 2

SP - 651

EP - 655

JO - International Journal of Inorganic Materials

JF - International Journal of Inorganic Materials

IS - 6

ER -

Charge-ordering in thin films of bilayered rare earth manganates

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