Interfacial Magnetic Features of La2CoMnO6/Pt Bilayers Studied by Using Spin Hall Magnetoresistance
Spin Hall magnetoresistance (SMR) is used to study interfacial magnetic features in La2CoMnO6 (LCMO)/Pt bilayers. LCMO is a ferromagnetic insulator with a Curie temperature Tc = 250 K and a strong magnetic anisotropy that can be tuned by microstructural strain. However, SMR measurements do not show...
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| Veröffentlicht in: | Advanced materials interfaces 2022-11, Vol.9 (31), p.n/a |
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| creator | Martín‐Rio, Sergi Frontera, Carlos Gómez‐Pérez, Juan M. Aguilar‐Pujol, Montserrat X. Catalano, Sara Gázquez, Jaume Casanova, Fèlix Balcells, Lluis Pomar, Alberto Martinez, Benjamin |
| description | Spin Hall magnetoresistance (SMR) is used to study interfacial magnetic features in La2CoMnO6 (LCMO)/Pt bilayers. LCMO is a ferromagnetic insulator with a Curie temperature Tc = 250 K and a strong magnetic anisotropy that can be tuned by microstructural strain. However, SMR measurements do not show any dependence on the strained state of the LCMO films. In addition, contrary to what may be expected, SMR signal persists above TC exhibiting a strong magnetic field dependence well above the saturation of the magnetization while the typical hysteresis on crossing H = 0 is absent. All these results suggest that the uppermost LCMO interfacial layers are magnetically uncoupled from the rest of the LCMO film and they do not show long range magnetic ordering. This fact is confirmed by a complete scanning transmission electron microscopy study of the interface that makes evident that the last atomic layers of the LCMO film do not contain Co and have a LaMnO3+δ simple perovskite‐like structure with the last atomic layer being lanthanum oxide. The analysis of the experimental results according to recent SMR theories indicates, in fact, that the LCMO interfacial layer behaves as a 2D Heisenberg ferromagnet.
Interfacial magnetic features of La2CoMnO6 (LCMO)/Pt bilayers are studied by using Spin Hall magnetoresistance (SMR). Magnetoresistance signal persists well above the Curie temperature, TC, exhibiting strong magnetic field dependence while the typical hysteresis on crossing field H = 0 is absent. These results suggest that the uppermost LCMO interfacial layers are magnetically decupled from the rest of the LCMO film. |
| doi_str_mv | 10.1002/admi.202201171 |
| format | Article |
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Interfacial magnetic features of La2CoMnO6 (LCMO)/Pt bilayers are studied by using Spin Hall magnetoresistance (SMR). Magnetoresistance signal persists well above the Curie temperature, TC, exhibiting strong magnetic field dependence while the typical hysteresis on crossing field H = 0 is absent. These results suggest that the uppermost LCMO interfacial layers are magnetically decupled from the rest of the LCMO film.</description><identifier>ISSN: 2196-7350</identifier><identifier>EISSN: 2196-7350</identifier><identifier>DOI: 10.1002/admi.202201171</identifier><language>eng</language><publisher>Weinheim: John Wiley & Sons, Inc</publisher><subject>complex oxides ; Curie temperature ; epitaxial thin films ; Ferromagnetism ; interfacial magnetic properties ; Lanthanum compounds ; Lanthanum oxides ; Magnetic anisotropy ; Magnetism ; Magnetoresistance ; Magnetoresistivity ; Perovskites ; Scanning transmission electron microscopy ; spin Hall magnetoresistance</subject><ispartof>Advanced materials interfaces, 2022-11, Vol.9 (31), p.n/a</ispartof><rights>2022 The Authors. Advanced Materials Interfaces published by Wiley‐VCH GmbH</rights><rights>2022. This article is published under http://creativecommons.org/licenses/by-nc-nd/4.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><orcidid>0000-0001-9879-7748</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://onlinelibrary.wiley.com/doi/pdf/10.1002%2Fadmi.202201171$$EPDF$$P50$$Gwiley$$Hfree_for_read</linktopdf><linktohtml>$$Uhttps://onlinelibrary.wiley.com/doi/full/10.1002%2Fadmi.202201171$$EHTML$$P50$$Gwiley$$Hfree_for_read</linktohtml><link.rule.ids>314,776,780,1411,27901,27902,45550,45551</link.rule.ids></links><search><creatorcontrib>Martín‐Rio, Sergi</creatorcontrib><creatorcontrib>Frontera, Carlos</creatorcontrib><creatorcontrib>Gómez‐Pérez, Juan M.</creatorcontrib><creatorcontrib>Aguilar‐Pujol, Montserrat X.</creatorcontrib><creatorcontrib>Catalano, Sara</creatorcontrib><creatorcontrib>Gázquez, Jaume</creatorcontrib><creatorcontrib>Casanova, Fèlix</creatorcontrib><creatorcontrib>Balcells, Lluis</creatorcontrib><creatorcontrib>Pomar, Alberto</creatorcontrib><creatorcontrib>Martinez, Benjamin</creatorcontrib><title>Interfacial Magnetic Features of La2CoMnO6/Pt Bilayers Studied by Using Spin Hall Magnetoresistance</title><title>Advanced materials interfaces</title><description>Spin Hall magnetoresistance (SMR) is used to study interfacial magnetic features in La2CoMnO6 (LCMO)/Pt bilayers. LCMO is a ferromagnetic insulator with a Curie temperature Tc = 250 K and a strong magnetic anisotropy that can be tuned by microstructural strain. However, SMR measurements do not show any dependence on the strained state of the LCMO films. In addition, contrary to what may be expected, SMR signal persists above TC exhibiting a strong magnetic field dependence well above the saturation of the magnetization while the typical hysteresis on crossing H = 0 is absent. All these results suggest that the uppermost LCMO interfacial layers are magnetically uncoupled from the rest of the LCMO film and they do not show long range magnetic ordering. This fact is confirmed by a complete scanning transmission electron microscopy study of the interface that makes evident that the last atomic layers of the LCMO film do not contain Co and have a LaMnO3+δ simple perovskite‐like structure with the last atomic layer being lanthanum oxide. The analysis of the experimental results according to recent SMR theories indicates, in fact, that the LCMO interfacial layer behaves as a 2D Heisenberg ferromagnet.
Interfacial magnetic features of La2CoMnO6 (LCMO)/Pt bilayers are studied by using Spin Hall magnetoresistance (SMR). Magnetoresistance signal persists well above the Curie temperature, TC, exhibiting strong magnetic field dependence while the typical hysteresis on crossing field H = 0 is absent. These results suggest that the uppermost LCMO interfacial layers are magnetically decupled from the rest of the LCMO film.</description><subject>complex oxides</subject><subject>Curie temperature</subject><subject>epitaxial thin films</subject><subject>Ferromagnetism</subject><subject>interfacial magnetic properties</subject><subject>Lanthanum compounds</subject><subject>Lanthanum oxides</subject><subject>Magnetic anisotropy</subject><subject>Magnetism</subject><subject>Magnetoresistance</subject><subject>Magnetoresistivity</subject><subject>Perovskites</subject><subject>Scanning transmission electron microscopy</subject><subject>spin Hall magnetoresistance</subject><issn>2196-7350</issn><issn>2196-7350</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2022</creationdate><recordtype>article</recordtype><sourceid>24P</sourceid><recordid>eNpNkE1rAjEYhENpoWK99hzoeW0-NnFztLZWQbFgPYeYZCWyZrdJlrL_viu20tO8LzwzAwPAI0ZjjBB5VubkxgQRgjCe4BswIFjwbEIZuv1334NRjEeEeohgUtAB0EufbCiVdqqCa3XwNjkN51alNtgI6xKuFJnVa7_hzx8JvrhKdTZEuE2tcdbAfQd30fkD3DbOw4Wq_lLq3u5iUl7bB3BXqira0a8OwW7-9jlbZKvN-3I2XWUNmVCc6ZIKxnKCGGesZARRghktSmt5jrm2zDCk90RhUwiTM2575UIIasSeIpTTIXi65Dah_mptTPJYt8H3lfJcQAuKOespcaG-XWU72QR3UqGTGMnzkPI8pLwOKaev6-X1oz_m5mdL</recordid><startdate>20221103</startdate><enddate>20221103</enddate><creator>Martín‐Rio, Sergi</creator><creator>Frontera, Carlos</creator><creator>Gómez‐Pérez, Juan M.</creator><creator>Aguilar‐Pujol, Montserrat X.</creator><creator>Catalano, Sara</creator><creator>Gázquez, Jaume</creator><creator>Casanova, Fèlix</creator><creator>Balcells, Lluis</creator><creator>Pomar, Alberto</creator><creator>Martinez, Benjamin</creator><general>John Wiley & Sons, Inc</general><scope>24P</scope><scope>7SR</scope><scope>7U5</scope><scope>8BQ</scope><scope>8FD</scope><scope>JG9</scope><scope>L7M</scope><orcidid>https://orcid.org/0000-0001-9879-7748</orcidid></search><sort><creationdate>20221103</creationdate><title>Interfacial Magnetic Features of La2CoMnO6/Pt Bilayers Studied by Using Spin Hall Magnetoresistance</title><author>Martín‐Rio, Sergi ; Frontera, Carlos ; Gómez‐Pérez, Juan M. ; Aguilar‐Pujol, Montserrat X. ; Catalano, Sara ; Gázquez, Jaume ; Casanova, Fèlix ; Balcells, Lluis ; Pomar, Alberto ; Martinez, Benjamin</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-p2731-cf39554205655f520321538fee6416ce5d50cb2a1d89d456ed8969993d9b30043</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2022</creationdate><topic>complex oxides</topic><topic>Curie temperature</topic><topic>epitaxial thin films</topic><topic>Ferromagnetism</topic><topic>interfacial magnetic properties</topic><topic>Lanthanum compounds</topic><topic>Lanthanum oxides</topic><topic>Magnetic anisotropy</topic><topic>Magnetism</topic><topic>Magnetoresistance</topic><topic>Magnetoresistivity</topic><topic>Perovskites</topic><topic>Scanning transmission electron microscopy</topic><topic>spin Hall magnetoresistance</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Martín‐Rio, Sergi</creatorcontrib><creatorcontrib>Frontera, Carlos</creatorcontrib><creatorcontrib>Gómez‐Pérez, Juan M.</creatorcontrib><creatorcontrib>Aguilar‐Pujol, Montserrat X.</creatorcontrib><creatorcontrib>Catalano, Sara</creatorcontrib><creatorcontrib>Gázquez, Jaume</creatorcontrib><creatorcontrib>Casanova, Fèlix</creatorcontrib><creatorcontrib>Balcells, Lluis</creatorcontrib><creatorcontrib>Pomar, Alberto</creatorcontrib><creatorcontrib>Martinez, Benjamin</creatorcontrib><collection>Wiley Online Library Open Access</collection><collection>Engineered Materials Abstracts</collection><collection>Solid State and Superconductivity Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Materials Research Database</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>Advanced materials interfaces</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Martín‐Rio, Sergi</au><au>Frontera, Carlos</au><au>Gómez‐Pérez, Juan M.</au><au>Aguilar‐Pujol, Montserrat X.</au><au>Catalano, Sara</au><au>Gázquez, Jaume</au><au>Casanova, Fèlix</au><au>Balcells, Lluis</au><au>Pomar, Alberto</au><au>Martinez, Benjamin</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Interfacial Magnetic Features of La2CoMnO6/Pt Bilayers Studied by Using Spin Hall Magnetoresistance</atitle><jtitle>Advanced materials interfaces</jtitle><date>2022-11-03</date><risdate>2022</risdate><volume>9</volume><issue>31</issue><epage>n/a</epage><issn>2196-7350</issn><eissn>2196-7350</eissn><abstract>Spin Hall magnetoresistance (SMR) is used to study interfacial magnetic features in La2CoMnO6 (LCMO)/Pt bilayers. LCMO is a ferromagnetic insulator with a Curie temperature Tc = 250 K and a strong magnetic anisotropy that can be tuned by microstructural strain. However, SMR measurements do not show any dependence on the strained state of the LCMO films. In addition, contrary to what may be expected, SMR signal persists above TC exhibiting a strong magnetic field dependence well above the saturation of the magnetization while the typical hysteresis on crossing H = 0 is absent. All these results suggest that the uppermost LCMO interfacial layers are magnetically uncoupled from the rest of the LCMO film and they do not show long range magnetic ordering. This fact is confirmed by a complete scanning transmission electron microscopy study of the interface that makes evident that the last atomic layers of the LCMO film do not contain Co and have a LaMnO3+δ simple perovskite‐like structure with the last atomic layer being lanthanum oxide. The analysis of the experimental results according to recent SMR theories indicates, in fact, that the LCMO interfacial layer behaves as a 2D Heisenberg ferromagnet.
Interfacial magnetic features of La2CoMnO6 (LCMO)/Pt bilayers are studied by using Spin Hall magnetoresistance (SMR). Magnetoresistance signal persists well above the Curie temperature, TC, exhibiting strong magnetic field dependence while the typical hysteresis on crossing field H = 0 is absent. These results suggest that the uppermost LCMO interfacial layers are magnetically decupled from the rest of the LCMO film.</abstract><cop>Weinheim</cop><pub>John Wiley & Sons, Inc</pub><doi>10.1002/admi.202201171</doi><tpages>8</tpages><orcidid>https://orcid.org/0000-0001-9879-7748</orcidid><oa>free_for_read</oa></addata></record> |
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| subjects | complex oxides Curie temperature epitaxial thin films Ferromagnetism interfacial magnetic properties Lanthanum compounds Lanthanum oxides Magnetic anisotropy Magnetism Magnetoresistance Magnetoresistivity Perovskites Scanning transmission electron microscopy spin Hall magnetoresistance |
| title | Interfacial Magnetic Features of La2CoMnO6/Pt Bilayers Studied by Using Spin Hall Magnetoresistance |
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