Observation of resistance switching between insulating and metallic states in nano-crystalline La0.65Ca0.35MnO3 film

V. G. Prokhorov; G. G. Kaminsky; V. A. Komashko; Y. P. Lee; I. I. Kravchenko

doi:10.1016/S0921-4526(03)00105-4

Observation of resistance switching between insulating and metallic states in nano-crystalline La_0.65Ca_0.35MnO₃ film

V. G. Prokhorov, G. G. Kaminsky, V. A. Komashko, Y. P. Lee, I. I. Kravchenko

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

4 Scopus citations

Abstract

The magnetic and transport properties of a 20-nm-scale twinned La_0.65Ca_0.35MnO₃ film have been investigated in a temperature range of 77-300 K. The coexistence of ferromagnetic metallic (FM) and charge-ordered insulating (COI) phases is suggested based on analysis of resistance temperature and current dependencies at low temperatures. It is shown that thermocycling leads to formation of a non-equilibrium state in the ensemble of the charge-ordered domains and to appearance of a giant (up to 100%) resistance switching between MF and COI states. The experimental results are discussed from the viewpoint of the phase separation phenomenon.

Original language	English
Pages (from-to)	403-407
Number of pages	5
Journal	Physica B: Physics of Condensed Matter
Volume	334
Issue number	3-4
DOIs	https://doi.org/10.1016/S0921-4526(03)00105-4
State	Published - Jul 2003
Externally published	Yes

Funding

This work was supported by Korea Research Foundation Grant KRF-2001-015-DS0015.

Funders	Funder number
Korea Research Foundation	KRF-2001-015-DS0015

Keywords

Charge-ordered insulating phase
Ferromagnetic metallic phase
Hole doped perovskite manganites
Nano-scale twinned film
Resistance switching

Access to Document

10.1016/S0921-4526(03)00105-4

Cite this

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title = "Observation of resistance switching between insulating and metallic states in nano-crystalline La0.65Ca0.35MnO3 film",

abstract = "The magnetic and transport properties of a 20-nm-scale twinned La0.65Ca0.35MnO3 film have been investigated in a temperature range of 77-300 K. The coexistence of ferromagnetic metallic (FM) and charge-ordered insulating (COI) phases is suggested based on analysis of resistance temperature and current dependencies at low temperatures. It is shown that thermocycling leads to formation of a non-equilibrium state in the ensemble of the charge-ordered domains and to appearance of a giant (up to 100%) resistance switching between MF and COI states. The experimental results are discussed from the viewpoint of the phase separation phenomenon.",

keywords = "Charge-ordered insulating phase, Ferromagnetic metallic phase, Hole doped perovskite manganites, Nano-scale twinned film, Resistance switching",

author = "Prokhorov, {V. G.} and Kaminsky, {G. G.} and Komashko, {V. A.} and Lee, {Y. P.} and Kravchenko, {I. I.}",

year = "2003",

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T1 - Observation of resistance switching between insulating and metallic states in nano-crystalline La0.65Ca0.35MnO3 film

AU - Prokhorov, V. G.

AU - Kaminsky, G. G.

AU - Komashko, V. A.

AU - Lee, Y. P.

AU - Kravchenko, I. I.

PY - 2003/7

Y1 - 2003/7

N2 - The magnetic and transport properties of a 20-nm-scale twinned La0.65Ca0.35MnO3 film have been investigated in a temperature range of 77-300 K. The coexistence of ferromagnetic metallic (FM) and charge-ordered insulating (COI) phases is suggested based on analysis of resistance temperature and current dependencies at low temperatures. It is shown that thermocycling leads to formation of a non-equilibrium state in the ensemble of the charge-ordered domains and to appearance of a giant (up to 100%) resistance switching between MF and COI states. The experimental results are discussed from the viewpoint of the phase separation phenomenon.

AB - The magnetic and transport properties of a 20-nm-scale twinned La0.65Ca0.35MnO3 film have been investigated in a temperature range of 77-300 K. The coexistence of ferromagnetic metallic (FM) and charge-ordered insulating (COI) phases is suggested based on analysis of resistance temperature and current dependencies at low temperatures. It is shown that thermocycling leads to formation of a non-equilibrium state in the ensemble of the charge-ordered domains and to appearance of a giant (up to 100%) resistance switching between MF and COI states. The experimental results are discussed from the viewpoint of the phase separation phenomenon.

KW - Charge-ordered insulating phase

KW - Ferromagnetic metallic phase

KW - Hole doped perovskite manganites

KW - Nano-scale twinned film

KW - Resistance switching

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U2 - 10.1016/S0921-4526(03)00105-4

DO - 10.1016/S0921-4526(03)00105-4

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