Publicação
Thickness dependence of microstructure in thin La0.7Sr0.3MnO3 films grown on (100) SrTiO3 substrate
| Resumo: | This study investigates the nanostructure of perovskite thin films, and its influence on magnetic properties. Epitaxial thin films of perovskite La0.7Sr0.3MnO3 with thickness ranging from 13.5 nm to 320 nm were deposited on SrTiO3 (1 0 0) substrates using pulsed laser deposition techniques. X-ray diffraction, along with high-resolution transmission electron microscopy (HRTEM) investigations were carried out, and showed the presence of a second, La-rich phase in thick film. Scanning electron microscopy analysis showed thinner films to have smooth surfaces, while thicker films presented large triangular shapes emerging out of the film surface. Also HRTEM images revealed epitaxial growth for thinner films. Thicker films grow with numerous misfit dislocations leading to columnar structure, where the thickest film presents branched structure with an intermediate La-rich layer. Lattice mismatch, diffusion of Mn ions into the substrate and substituting Ti ions are known as sources of strain in films near interfaces. Magnetic properties in the structure mentioned are described by double-exchange interaction, which is very sensitive to local structure. Hence, the nanostructure of films reported here has a remarkable effect on their magnetic properties. |
|---|---|
| Autores principais: | Vaghefi, P. Mirzadeh |
| Outros Autores: | Baghizadeh, A.; Willinger, M.; Pereira, M. J.; Mota, D. A.; Almeida, B. G.; Moreira, J. Agostinho; Amaral, V. S. |
| Assunto: | Manganite thin film Pulsed laser deposition Epitaxial growth Columnar structure |
| Ano: | 2017 |
| País: | Portugal |
| Tipo de documento: | artigo |
| Tipo de acesso: | acesso restrito |
| Instituição associada: | Universidade do Minho |
| Idioma: | inglês |
| Origem: | RepositóriUM - Universidade do Minho |
| _version_ | 1867438565991907328 |
|---|---|
| author | Vaghefi, P. Mirzadeh |
| author2 | Baghizadeh, A. Willinger, M. Pereira, M. J. Mota, D. A. Almeida, B. G. Moreira, J. Agostinho Amaral, V. S. |
| author2_role | author author author author author author author |
| author_facet | Vaghefi, P. Mirzadeh Baghizadeh, A. Willinger, M. Pereira, M. J. Mota, D. A. Almeida, B. G. Moreira, J. Agostinho Amaral, V. S. |
| author_role | author |
| contributor_name_str_mv | RepositóriUM - Universidade do Minho |
| country_str | PT |
| creators_json_txt | [{\"Person.name\":\"Vaghefi, P. Mirzadeh\"},{\"Person.name\":\"Baghizadeh, A.\"},{\"Person.name\":\"Willinger, M.\"},{\"Person.name\":\"Pereira, M. J.\"},{\"Person.name\":\"Mota, D. A.\"},{\"Person.name\":\"Almeida, B. G.\"},{\"Person.name\":\"Moreira, J. Agostinho\"},{\"Person.name\":\"Amaral, V. S.\"}] |
| datacite.contributors.contributor.contributorName.fl_str_mv | RepositóriUM - Universidade do Minho |
| datacite.creators.creator.creatorName.fl_str_mv | Vaghefi, P. Mirzadeh Baghizadeh, A. Willinger, M. Pereira, M. J. Mota, D. A. Almeida, B. G. Moreira, J. Agostinho Amaral, V. S. |
| datacite.date.Accepted.fl_str_mv | 2017-10-04T00:00:00Z |
| datacite.rights.fl_str_mv | http://purl.org/coar/access_right/c_16ec |
| datacite.subjects.subject.fl_str_mv | Manganite thin film Pulsed laser deposition Epitaxial growth Columnar structure |
| datacite.titles.title.fl_str_mv | Thickness dependence of microstructure in thin La0.7Sr0.3MnO3 films grown on (100) SrTiO3 substrate |
| dc.contributor.none.fl_str_mv | RepositóriUM - Universidade do Minho |
| dc.creator.none.fl_str_mv | Vaghefi, P. Mirzadeh Baghizadeh, A. Willinger, M. Pereira, M. J. Mota, D. A. Almeida, B. G. Moreira, J. Agostinho Amaral, V. S. |
| dc.date.Accepted.fl_str_mv | 2017-10-04T00:00:00Z |
| dc.format.none.fl_str_mv | application/pdf |
| dc.identifier.none.fl_str_mv | https://hdl.handle.net/1822/49665 |
| dc.language.none.fl_str_mv | eng |
| dc.publisher.none.fl_str_mv | IOP Publishing |
| dc.rights.none.fl_str_mv | http://purl.org/coar/access_right/c_16ec |
| dc.subject.none.fl_str_mv | Manganite thin film Pulsed laser deposition Epitaxial growth Columnar structure |
| dc.title.fl_str_mv | Thickness dependence of microstructure in thin La0.7Sr0.3MnO3 films grown on (100) SrTiO3 substrate |
| dc.type.none.fl_str_mv | http://purl.org/coar/resource_type/c_6501 |
| description | This study investigates the nanostructure of perovskite thin films, and its influence on magnetic properties. Epitaxial thin films of perovskite La0.7Sr0.3MnO3 with thickness ranging from 13.5 nm to 320 nm were deposited on SrTiO3 (1 0 0) substrates using pulsed laser deposition techniques. X-ray diffraction, along with high-resolution transmission electron microscopy (HRTEM) investigations were carried out, and showed the presence of a second, La-rich phase in thick film. Scanning electron microscopy analysis showed thinner films to have smooth surfaces, while thicker films presented large triangular shapes emerging out of the film surface. Also HRTEM images revealed epitaxial growth for thinner films. Thicker films grow with numerous misfit dislocations leading to columnar structure, where the thickest film presents branched structure with an intermediate La-rich layer. Lattice mismatch, diffusion of Mn ions into the substrate and substituting Ti ions are known as sources of strain in films near interfaces. Magnetic properties in the structure mentioned are described by double-exchange interaction, which is very sensitive to local structure. Hence, the nanostructure of films reported here has a remarkable effect on their magnetic properties. |
| dirty | 0 |
| eu_rights_str_mv | restrictedAccess |
| format | article |
| fulltext.url.fl_str_mv | https://repositorium.uminho.pt/bitstreams/088ed869-8978-4afc-90d3-ccb750cd13e6/download |
| id | rum_d63c8d2464f889bb69bb70ee4eb2c43c |
| identifier.url.fl_str_mv | https://hdl.handle.net/1822/49665 |
| instacron_str | repositorium |
| institution | Universidade do Minho |
| instname_str | Universidade do Minho |
| language | eng |
| network_acronym_str | rum |
| network_name_str | RepositóriUM - Universidade do Minho |
| oai_identifier_str | oai:repositorium.uminho.pt:1822/49665 |
| organization_str_mv | urn:organizationAcronym:repositorium |
| person_str_mv | Vaghefi, P. Mirzadeh Baghizadeh, A. Willinger, M. Pereira, M. J. Mota, D. A. Almeida, B. G. Moreira, J. Agostinho Amaral, V. S. |
| publishDate | 2017 |
| publisher.none.fl_str_mv | IOP Publishing |
| reponame_str | RepositóriUM - Universidade do Minho |
| repository_id_str | urn:repositoryAcronym:rum |
| service_str_mv | urn:repositoryAcronym:rum |
| spelling | engIOP PublishingporThis study investigates the nanostructure of perovskite thin films, and its influence on magnetic properties. Epitaxial thin films of perovskite La0.7Sr0.3MnO3 with thickness ranging from 13.5 nm to 320 nm were deposited on SrTiO3 (1 0 0) substrates using pulsed laser deposition techniques. X-ray diffraction, along with high-resolution transmission electron microscopy (HRTEM) investigations were carried out, and showed the presence of a second, La-rich phase in thick film. Scanning electron microscopy analysis showed thinner films to have smooth surfaces, while thicker films presented large triangular shapes emerging out of the film surface. Also HRTEM images revealed epitaxial growth for thinner films. Thicker films grow with numerous misfit dislocations leading to columnar structure, where the thickest film presents branched structure with an intermediate La-rich layer. Lattice mismatch, diffusion of Mn ions into the substrate and substituting Ti ions are known as sources of strain in films near interfaces. Magnetic properties in the structure mentioned are described by double-exchange interaction, which is very sensitive to local structure. Hence, the nanostructure of films reported here has a remarkable effect on their magnetic properties.application/pdfporThickness dependence of microstructure in thin La0.7Sr0.3MnO3 films grown on (100) SrTiO3 substrateVaghefi, P. MirzadehBaghizadeh, A.Willinger, M.Pereira, M. J.Mota, D. A.Almeida, B. G.Moreira, J. AgostinhoAmaral, V. S.HostingInstitutionOrganizationalRepositóriUM - Universidade do Minhoe-mailmailto:repositorium@usdb.uminho.ptrepositorium@usdb.uminho.ptISSNIsPartOf0022-3727EISSNIsPartOf1361-6463DOIIsPartOf10.1088/1361-6463/aa80bf2017-10-042018-01-11T00:24:43Z2017-10-04T00:00:00ZHandlehttps://hdl.handle.net/1822/49665http://purl.org/coar/access_right/c_16ecrestricted accessManganite thin filmPulsed laser depositionEpitaxial growthColumnar structure7298261 bytesliteraturehttp://purl.org/coar/resource_type/c_6501journal articlehttp://purl.org/coar/access_right/c_16ecapplication/pdffulltexthttps://repositorium.uminho.pt/bitstreams/088ed869-8978-4afc-90d3-ccb750cd13e6/download |
| spellingShingle | Thickness dependence of microstructure in thin La0.7Sr0.3MnO3 films grown on (100) SrTiO3 substrate Vaghefi, P. Mirzadeh Manganite thin film Pulsed laser deposition Epitaxial growth Columnar structure |
| status | SINGLETON |
| subject.fl_str_mv | Manganite thin film Pulsed laser deposition Epitaxial growth Columnar structure |
| title | Thickness dependence of microstructure in thin La0.7Sr0.3MnO3 films grown on (100) SrTiO3 substrate |
| title_full | Thickness dependence of microstructure in thin La0.7Sr0.3MnO3 films grown on (100) SrTiO3 substrate |
| title_fullStr | Thickness dependence of microstructure in thin La0.7Sr0.3MnO3 films grown on (100) SrTiO3 substrate |
| title_full_unstemmed | Thickness dependence of microstructure in thin La0.7Sr0.3MnO3 films grown on (100) SrTiO3 substrate |
| title_short | Thickness dependence of microstructure in thin La0.7Sr0.3MnO3 films grown on (100) SrTiO3 substrate |
| title_sort | Thickness dependence of microstructure in thin La0.7Sr0.3MnO3 films grown on (100) SrTiO3 substrate |
| topic | Manganite thin film Pulsed laser deposition Epitaxial growth Columnar structure |
| topic_facet | Manganite thin film Pulsed laser deposition Epitaxial growth Columnar structure |
| url | https://hdl.handle.net/1822/49665 |
| visible | 1 |