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.

Funders	Funder number
National Science Foundation
Materials Research Science and Engineering Center, Harvard University

Keywords

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

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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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",

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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

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

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

M3 - Article

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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

Abstract

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Keywords

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