Loading…
Cation non-stoichiometry in pulsed laser deposited Sr{sub 2+y}Fe{sub 1+x}Mo{sub 1-x}O₆ epitaxial films
Sr₂FeMoO₆ (SFMO) films were grown on SrTiO₃ (100)- and (111)-oriented substrates via pulsed laser deposition (PLD). In order to study the fundamental characteristics of deposition, films were grown in two different PLD chambers. In chamber I, the best films were grown with a relatively long substrat...
Saved in:
Published in: | Journal of applied physics 2014-07, Vol.116 (1) |
---|---|
Main Authors: | , , , , , , , , |
Format: | Article |
Language: | English |
Subjects: | |
Online Access: | Get full text |
Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
cited_by | |
---|---|
cites | |
container_end_page | |
container_issue | 1 |
container_start_page | |
container_title | Journal of applied physics |
container_volume | 116 |
creator | Meyer, T. L. Woodward, P. M. Dixit, M. Williams, R. E. A. Susner, M. A. Fraser, H. L. McComb, D. W. Sumption, M. D. Lemberger, T. R. |
description | Sr₂FeMoO₆ (SFMO) films were grown on SrTiO₃ (100)- and (111)-oriented substrates via pulsed laser deposition (PLD). In order to study the fundamental characteristics of deposition, films were grown in two different PLD chambers. In chamber I, the best films were grown with a relatively long substrate-to-target distance (89 mm), high substrate temperature (850 °C), and low pressure (50 mTorr) in a 95% Ar/5% H₂ atmosphere. Although X-ray diffraction (XRD) measurements indicate these films are single phase, Rutherford Backscattering (RBS) measurements reveal considerable non-stoichiometry, corresponding to a Sr₂Fe{sub 1–x}Mo{sub 1+x}O₆ composition with x≅0.2–0.3. This level of non-stoichiometry results in inferior magnetic properties. In chamber II, the best films were grown with a much shorter substrate-to-target distance (38 mm), lower temperature (680 °C), and higher pressure (225 mTorr). XRD measurements show that the films are single phase, and RBS measurements indicate that they are nearly stoichiometric. The degree of ordering between Fe and Mo was dependent on both the temperature and pressure used during deposition, reaching a maximum order parameter of 85%. The saturation magnetization increases as the Fe/Mo ordering increases, reaching a maximum of 2.4 μB/f.u. Based on prior studies of bulk samples, one would expect a higher saturation magnetization for this degree of Fe/Mo order. The presence of extra strontium oxide layers in the form of Ruddlesden-Popper intergrowths appears to be responsible for the lower than expected saturation magnetization of these films. |
doi_str_mv | 10.1063/1.4885450 |
format | article |
fullrecord | <record><control><sourceid>osti</sourceid><recordid>TN_cdi_osti_scitechconnect_22306247</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>22306247</sourcerecordid><originalsourceid>FETCH-osti_scitechconnect_223062473</originalsourceid><addsrcrecordid>eNqNjL1qwzAURkVpoe7P0DcQdAxKrmQ7lueQ0KV0aPagKgq-xZGMrwI2wUuGPGifJKbpA3T6zgeHw9iLhKmEeTqT00zrPMvhhiUSdCmKPIdblgAoKXRZlPfsgegbQEqdlgmrFiZi8NwHLygGtBWGvYttz9Hz5lCT2_LakGv51jWBMI7_sz3S4YurST-s3C_KSTe8hyuKbvj4OZ25azCaDk3Nd1jv6Ynd7cyYe_7bR_a6Wq4XbyJQxA3ZsWwrG7x3Nm6USmGusiL9n3UBTt5N2g</addsrcrecordid><sourcetype>Open Access Repository</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype></control><display><type>article</type><title>Cation non-stoichiometry in pulsed laser deposited Sr{sub 2+y}Fe{sub 1+x}Mo{sub 1-x}O₆ epitaxial films</title><source>American Institute of Physics:Jisc Collections:Transitional Journals Agreement 2021-23 (Reading list)</source><creator>Meyer, T. L. ; Woodward, P. M. ; Dixit, M. ; Williams, R. E. A. ; Susner, M. A. ; Fraser, H. L. ; McComb, D. W. ; Sumption, M. D. ; Lemberger, T. R.</creator><creatorcontrib>Meyer, T. L. ; Woodward, P. M. ; Dixit, M. ; Williams, R. E. A. ; Susner, M. A. ; Fraser, H. L. ; McComb, D. W. ; Sumption, M. D. ; Lemberger, T. R.</creatorcontrib><description>Sr₂FeMoO₆ (SFMO) films were grown on SrTiO₃ (100)- and (111)-oriented substrates via pulsed laser deposition (PLD). In order to study the fundamental characteristics of deposition, films were grown in two different PLD chambers. In chamber I, the best films were grown with a relatively long substrate-to-target distance (89 mm), high substrate temperature (850 °C), and low pressure (50 mTorr) in a 95% Ar/5% H₂ atmosphere. Although X-ray diffraction (XRD) measurements indicate these films are single phase, Rutherford Backscattering (RBS) measurements reveal considerable non-stoichiometry, corresponding to a Sr₂Fe{sub 1–x}Mo{sub 1+x}O₆ composition with x≅0.2–0.3. This level of non-stoichiometry results in inferior magnetic properties. In chamber II, the best films were grown with a much shorter substrate-to-target distance (38 mm), lower temperature (680 °C), and higher pressure (225 mTorr). XRD measurements show that the films are single phase, and RBS measurements indicate that they are nearly stoichiometric. The degree of ordering between Fe and Mo was dependent on both the temperature and pressure used during deposition, reaching a maximum order parameter of 85%. The saturation magnetization increases as the Fe/Mo ordering increases, reaching a maximum of 2.4 μB/f.u. Based on prior studies of bulk samples, one would expect a higher saturation magnetization for this degree of Fe/Mo order. The presence of extra strontium oxide layers in the form of Ruddlesden-Popper intergrowths appears to be responsible for the lower than expected saturation magnetization of these films.</description><identifier>ISSN: 0021-8979</identifier><identifier>EISSN: 1089-7550</identifier><identifier>DOI: 10.1063/1.4885450</identifier><language>eng</language><publisher>United States: American Institute of Physics (AIP)</publisher><subject>CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY ; ENERGY BEAM DEPOSITION ; EPITAXY ; IRON COMPOUNDS ; LASER RADIATION ; LAYERS ; MAGNETIC PROPERTIES ; MAGNETIZATION ; MOLYBDATES ; RUTHERFORD BACKSCATTERING SPECTROSCOPY ; SATURATION ; STOICHIOMETRY ; STRONTIUM COMPOUNDS ; STRONTIUM OXIDES ; STRONTIUM TITANATES ; SUBSTRATES ; X-RAY DIFFRACTION</subject><ispartof>Journal of applied physics, 2014-07, Vol.116 (1)</ispartof><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>230,315,786,790,891,27957,27958</link.rule.ids><backlink>$$Uhttps://www.osti.gov/biblio/22306247$$D View this record in Osti.gov$$Hfree_for_read</backlink></links><search><creatorcontrib>Meyer, T. L.</creatorcontrib><creatorcontrib>Woodward, P. M.</creatorcontrib><creatorcontrib>Dixit, M.</creatorcontrib><creatorcontrib>Williams, R. E. A.</creatorcontrib><creatorcontrib>Susner, M. A.</creatorcontrib><creatorcontrib>Fraser, H. L.</creatorcontrib><creatorcontrib>McComb, D. W.</creatorcontrib><creatorcontrib>Sumption, M. D.</creatorcontrib><creatorcontrib>Lemberger, T. R.</creatorcontrib><title>Cation non-stoichiometry in pulsed laser deposited Sr{sub 2+y}Fe{sub 1+x}Mo{sub 1-x}O₆ epitaxial films</title><title>Journal of applied physics</title><description>Sr₂FeMoO₆ (SFMO) films were grown on SrTiO₃ (100)- and (111)-oriented substrates via pulsed laser deposition (PLD). In order to study the fundamental characteristics of deposition, films were grown in two different PLD chambers. In chamber I, the best films were grown with a relatively long substrate-to-target distance (89 mm), high substrate temperature (850 °C), and low pressure (50 mTorr) in a 95% Ar/5% H₂ atmosphere. Although X-ray diffraction (XRD) measurements indicate these films are single phase, Rutherford Backscattering (RBS) measurements reveal considerable non-stoichiometry, corresponding to a Sr₂Fe{sub 1–x}Mo{sub 1+x}O₆ composition with x≅0.2–0.3. This level of non-stoichiometry results in inferior magnetic properties. In chamber II, the best films were grown with a much shorter substrate-to-target distance (38 mm), lower temperature (680 °C), and higher pressure (225 mTorr). XRD measurements show that the films are single phase, and RBS measurements indicate that they are nearly stoichiometric. The degree of ordering between Fe and Mo was dependent on both the temperature and pressure used during deposition, reaching a maximum order parameter of 85%. The saturation magnetization increases as the Fe/Mo ordering increases, reaching a maximum of 2.4 μB/f.u. Based on prior studies of bulk samples, one would expect a higher saturation magnetization for this degree of Fe/Mo order. The presence of extra strontium oxide layers in the form of Ruddlesden-Popper intergrowths appears to be responsible for the lower than expected saturation magnetization of these films.</description><subject>CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY</subject><subject>ENERGY BEAM DEPOSITION</subject><subject>EPITAXY</subject><subject>IRON COMPOUNDS</subject><subject>LASER RADIATION</subject><subject>LAYERS</subject><subject>MAGNETIC PROPERTIES</subject><subject>MAGNETIZATION</subject><subject>MOLYBDATES</subject><subject>RUTHERFORD BACKSCATTERING SPECTROSCOPY</subject><subject>SATURATION</subject><subject>STOICHIOMETRY</subject><subject>STRONTIUM COMPOUNDS</subject><subject>STRONTIUM OXIDES</subject><subject>STRONTIUM TITANATES</subject><subject>SUBSTRATES</subject><subject>X-RAY DIFFRACTION</subject><issn>0021-8979</issn><issn>1089-7550</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2014</creationdate><recordtype>article</recordtype><recordid>eNqNjL1qwzAURkVpoe7P0DcQdAxKrmQ7lueQ0KV0aPagKgq-xZGMrwI2wUuGPGifJKbpA3T6zgeHw9iLhKmEeTqT00zrPMvhhiUSdCmKPIdblgAoKXRZlPfsgegbQEqdlgmrFiZi8NwHLygGtBWGvYttz9Hz5lCT2_LakGv51jWBMI7_sz3S4YurST-s3C_KSTe8hyuKbvj4OZ25azCaDk3Nd1jv6Ynd7cyYe_7bR_a6Wq4XbyJQxA3ZsWwrG7x3Nm6USmGusiL9n3UBTt5N2g</recordid><startdate>20140707</startdate><enddate>20140707</enddate><creator>Meyer, T. L.</creator><creator>Woodward, P. M.</creator><creator>Dixit, M.</creator><creator>Williams, R. E. A.</creator><creator>Susner, M. A.</creator><creator>Fraser, H. L.</creator><creator>McComb, D. W.</creator><creator>Sumption, M. D.</creator><creator>Lemberger, T. R.</creator><general>American Institute of Physics (AIP)</general><scope>OTOTI</scope></search><sort><creationdate>20140707</creationdate><title>Cation non-stoichiometry in pulsed laser deposited Sr{sub 2+y}Fe{sub 1+x}Mo{sub 1-x}O₆ epitaxial films</title><author>Meyer, T. L. ; Woodward, P. M. ; Dixit, M. ; Williams, R. E. A. ; Susner, M. A. ; Fraser, H. L. ; McComb, D. W. ; Sumption, M. D. ; Lemberger, T. R.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-osti_scitechconnect_223062473</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2014</creationdate><topic>CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY</topic><topic>ENERGY BEAM DEPOSITION</topic><topic>EPITAXY</topic><topic>IRON COMPOUNDS</topic><topic>LASER RADIATION</topic><topic>LAYERS</topic><topic>MAGNETIC PROPERTIES</topic><topic>MAGNETIZATION</topic><topic>MOLYBDATES</topic><topic>RUTHERFORD BACKSCATTERING SPECTROSCOPY</topic><topic>SATURATION</topic><topic>STOICHIOMETRY</topic><topic>STRONTIUM COMPOUNDS</topic><topic>STRONTIUM OXIDES</topic><topic>STRONTIUM TITANATES</topic><topic>SUBSTRATES</topic><topic>X-RAY DIFFRACTION</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Meyer, T. L.</creatorcontrib><creatorcontrib>Woodward, P. M.</creatorcontrib><creatorcontrib>Dixit, M.</creatorcontrib><creatorcontrib>Williams, R. E. A.</creatorcontrib><creatorcontrib>Susner, M. A.</creatorcontrib><creatorcontrib>Fraser, H. L.</creatorcontrib><creatorcontrib>McComb, D. W.</creatorcontrib><creatorcontrib>Sumption, M. D.</creatorcontrib><creatorcontrib>Lemberger, T. R.</creatorcontrib><collection>OSTI.GOV</collection><jtitle>Journal of applied physics</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Meyer, T. L.</au><au>Woodward, P. M.</au><au>Dixit, M.</au><au>Williams, R. E. A.</au><au>Susner, M. A.</au><au>Fraser, H. L.</au><au>McComb, D. W.</au><au>Sumption, M. D.</au><au>Lemberger, T. R.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Cation non-stoichiometry in pulsed laser deposited Sr{sub 2+y}Fe{sub 1+x}Mo{sub 1-x}O₆ epitaxial films</atitle><jtitle>Journal of applied physics</jtitle><date>2014-07-07</date><risdate>2014</risdate><volume>116</volume><issue>1</issue><issn>0021-8979</issn><eissn>1089-7550</eissn><abstract>Sr₂FeMoO₆ (SFMO) films were grown on SrTiO₃ (100)- and (111)-oriented substrates via pulsed laser deposition (PLD). In order to study the fundamental characteristics of deposition, films were grown in two different PLD chambers. In chamber I, the best films were grown with a relatively long substrate-to-target distance (89 mm), high substrate temperature (850 °C), and low pressure (50 mTorr) in a 95% Ar/5% H₂ atmosphere. Although X-ray diffraction (XRD) measurements indicate these films are single phase, Rutherford Backscattering (RBS) measurements reveal considerable non-stoichiometry, corresponding to a Sr₂Fe{sub 1–x}Mo{sub 1+x}O₆ composition with x≅0.2–0.3. This level of non-stoichiometry results in inferior magnetic properties. In chamber II, the best films were grown with a much shorter substrate-to-target distance (38 mm), lower temperature (680 °C), and higher pressure (225 mTorr). XRD measurements show that the films are single phase, and RBS measurements indicate that they are nearly stoichiometric. The degree of ordering between Fe and Mo was dependent on both the temperature and pressure used during deposition, reaching a maximum order parameter of 85%. The saturation magnetization increases as the Fe/Mo ordering increases, reaching a maximum of 2.4 μB/f.u. Based on prior studies of bulk samples, one would expect a higher saturation magnetization for this degree of Fe/Mo order. The presence of extra strontium oxide layers in the form of Ruddlesden-Popper intergrowths appears to be responsible for the lower than expected saturation magnetization of these films.</abstract><cop>United States</cop><pub>American Institute of Physics (AIP)</pub><doi>10.1063/1.4885450</doi></addata></record> |
fulltext | fulltext |
identifier | ISSN: 0021-8979 |
ispartof | Journal of applied physics, 2014-07, Vol.116 (1) |
issn | 0021-8979 1089-7550 |
language | eng |
recordid | cdi_osti_scitechconnect_22306247 |
source | American Institute of Physics:Jisc Collections:Transitional Journals Agreement 2021-23 (Reading list) |
subjects | CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY ENERGY BEAM DEPOSITION EPITAXY IRON COMPOUNDS LASER RADIATION LAYERS MAGNETIC PROPERTIES MAGNETIZATION MOLYBDATES RUTHERFORD BACKSCATTERING SPECTROSCOPY SATURATION STOICHIOMETRY STRONTIUM COMPOUNDS STRONTIUM OXIDES STRONTIUM TITANATES SUBSTRATES X-RAY DIFFRACTION |
title | Cation non-stoichiometry in pulsed laser deposited Sr{sub 2+y}Fe{sub 1+x}Mo{sub 1-x}O₆ epitaxial films |
url | http://sfxeu10.hosted.exlibrisgroup.com/loughborough?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2024-09-22T05%3A26%3A57IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-osti&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.atitle=Cation%20non-stoichiometry%20in%20pulsed%20laser%20deposited%20Sr%7Bsub%202+y%7DFe%7Bsub%201+x%7DMo%7Bsub%201-x%7DO%E2%82%86%20epitaxial%20films&rft.jtitle=Journal%20of%20applied%20physics&rft.au=Meyer,%20T.%20L.&rft.date=2014-07-07&rft.volume=116&rft.issue=1&rft.issn=0021-8979&rft.eissn=1089-7550&rft_id=info:doi/10.1063/1.4885450&rft_dat=%3Costi%3E22306247%3C/osti%3E%3Cgrp_id%3Ecdi_FETCH-osti_scitechconnect_223062473%3C/grp_id%3E%3Coa%3E%3C/oa%3E%3Curl%3E%3C/url%3E&rft_id=info:oai/&rft_id=info:pmid/&rfr_iscdi=true |