Thickness-dependent transport properties of Sr<inf>4</inf>Fe <inf>6</inf>O<inf>13</inf> epitaxial thin films

J. A. Pardo; J. Santiso; C. Solís; G. Garcia; A. Figueras; M. D. Rossell

doi:10.1016/j.ssi.2005.11.024

Thickness-dependent transport properties of Sr<inf>4</inf>Fe <inf>6</inf>O<inf>13</inf> epitaxial thin films

J. A. Pardo, J. Santiso, C. Solís, G. Garcia, A. Figueras, M. D. Rossell

Department of Physics

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

8 Citations (Scopus)

Abstract

High-quality epitaxial thin films of Sr4Fe6O 13 have been deposited on NdGaO3(001) substrates by pulsed laser deposition. The transport properties have been characterized by impedance spectroscopy. The temperature dependence of conductivity suggests a mechanism of adiabatic hopping by small polarons, in agreement with previous results in bulk samples. The transport properties show a clear dependence on the film thickness with the thinner films (10 nm) presenting conductivity values in oxygen one order of magnitude higher than the thicker ones (313 nm). We correlate this behaviour with the thickness dependence of the epitaxial strain. © 2005 Elsevier B.V. All rights reserved.

Original language	English
Pages (from-to)	423-428
Journal	Solid State Ionics
Volume	177
Issue number	5-6
DOIs	https://doi.org/10.1016/j.ssi.2005.11.024
Publication status	Published - 1 Feb 2006

Keywords

Epitaxy
Mixed ionic-electronic conductors
Pulsed laser deposition
Sr Fe O 4 6 13
Strain
Thin films

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@article{f89ff2cb3af34571b7c7dd24b0a177ff,

title = "Thickness-dependent transport properties of Sr4Fe 6O13 epitaxial thin films",

abstract = "High-quality epitaxial thin films of Sr4Fe6O 13 have been deposited on NdGaO3(001) substrates by pulsed laser deposition. The transport properties have been characterized by impedance spectroscopy. The temperature dependence of conductivity suggests a mechanism of adiabatic hopping by small polarons, in agreement with previous results in bulk samples. The transport properties show a clear dependence on the film thickness with the thinner films (10 nm) presenting conductivity values in oxygen one order of magnitude higher than the thicker ones (313 nm). We correlate this behaviour with the thickness dependence of the epitaxial strain. {\textcopyright} 2005 Elsevier B.V. All rights reserved.",

keywords = "Epitaxy, Mixed ionic-electronic conductors, Pulsed laser deposition, Sr Fe O 4 6 13, Strain, Thin films",

author = "Pardo, {J. A.} and J. Santiso and C. Sol{\'i}s and G. Garcia and A. Figueras and Rossell, {M. D.}",

year = "2006",

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doi = "10.1016/j.ssi.2005.11.024",

language = "English",

volume = "177",

pages = "423--428",

journal = "Solid State Ionics",

issn = "0167-2738",

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TY - JOUR

T1 - Thickness-dependent transport properties of Sr4Fe 6O13 epitaxial thin films

AU - Pardo, J. A.

AU - Santiso, J.

AU - Solís, C.

AU - Garcia, G.

AU - Figueras, A.

AU - Rossell, M. D.

PY - 2006/2/1

Y1 - 2006/2/1

N2 - High-quality epitaxial thin films of Sr4Fe6O 13 have been deposited on NdGaO3(001) substrates by pulsed laser deposition. The transport properties have been characterized by impedance spectroscopy. The temperature dependence of conductivity suggests a mechanism of adiabatic hopping by small polarons, in agreement with previous results in bulk samples. The transport properties show a clear dependence on the film thickness with the thinner films (10 nm) presenting conductivity values in oxygen one order of magnitude higher than the thicker ones (313 nm). We correlate this behaviour with the thickness dependence of the epitaxial strain. © 2005 Elsevier B.V. All rights reserved.

AB - High-quality epitaxial thin films of Sr4Fe6O 13 have been deposited on NdGaO3(001) substrates by pulsed laser deposition. The transport properties have been characterized by impedance spectroscopy. The temperature dependence of conductivity suggests a mechanism of adiabatic hopping by small polarons, in agreement with previous results in bulk samples. The transport properties show a clear dependence on the film thickness with the thinner films (10 nm) presenting conductivity values in oxygen one order of magnitude higher than the thicker ones (313 nm). We correlate this behaviour with the thickness dependence of the epitaxial strain. © 2005 Elsevier B.V. All rights reserved.

KW - Epitaxy

KW - Mixed ionic-electronic conductors

KW - Pulsed laser deposition

KW - Sr Fe O 4 6 13

KW - Strain

KW - Thin films

U2 - 10.1016/j.ssi.2005.11.024

DO - 10.1016/j.ssi.2005.11.024

M3 - Article

VL - 177

SP - 423

EP - 428

JO - Solid State Ionics

JF - Solid State Ionics

SN - 0167-2738

IS - 5-6

ER -