Control of magneto-optical properties of cobalt-layers by adsorption of α-helical polyalanine self-assembled monolayers
The adsorption of chiral molecules was recently shown to trigger a change in the magnetisation of mesoscopic magnetic domains in a ferromagnetic underlayer. In this work, we investigated the macroscopic (magneto-)optical response of chemisorbed α-helical polyalanine self-assembled monolayers (SAMs)...
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| Veröffentlicht in: | Journal of materials chemistry. C, Materials for optical and electronic devices Materials for optical and electronic devices, 2020-09, Vol.8 (34), p.11822-11829 |
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| container_title | Journal of materials chemistry. C, Materials for optical and electronic devices |
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| creator | Sharma, Apoorva Matthes, Patrick Soldatov, Ivan Arekapudi, Sri Sai Phani Kanth Böhm, Benny Lindner, Marina Selyshchev, Oleksandr Thi Ngoc Ha, Nguyen Mehring, Michael Tegenkamp, Christoph Schulz, Stefan E Zahn, Dietrich R. T Paltiel, Yossi Hellwig, Olav Salvan, Georgeta |
| description | The adsorption of chiral molecules was recently shown to trigger a change in the magnetisation of mesoscopic magnetic domains in a ferromagnetic underlayer. In this work, we investigated the macroscopic (magneto-)optical response of chemisorbed α-helical polyalanine self-assembled monolayers (SAMs) on a gold and gold-capped-cobalt thin film on Au substrates using spectroscopic ellipsometry and magneto-optical Kerr effect spectroscopy and microscopy. The optical and magneto-optical spectra reveal selective chemisorption of the α-helical polyalanine molecules depending on the orientation of the substrate remanent magnetisation during the SAMs process. Moreover, a sign change of the magneto-optical response was observed in some of the magnetic substrates after the chiral SAMs formation.
Adsorption of α-helical polyaniline self-assembled monolayers onto magnetic substrates containing a thin Co layer determines the magneto-optical response. |
| doi_str_mv | 10.1039/d0tc02734k |
| format | Article |
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Adsorption of α-helical polyaniline self-assembled monolayers onto magnetic substrates containing a thin Co layer determines the magneto-optical response.</description><identifier>ISSN: 2050-7526</identifier><identifier>EISSN: 2050-7534</identifier><identifier>DOI: 10.1039/d0tc02734k</identifier><language>eng</language><publisher>Cambridge: Royal Society of Chemistry</publisher><subject>Adsorption ; Chemisorption ; Cobalt ; Ferromagnetism ; Gold ; Kerr effects ; Kerr magnetooptical effect ; Magnetic domains ; Magnetic properties ; Magnetization ; Monolayers ; Optical properties ; Self-assembled monolayers ; Self-assembly ; Spectroellipsometry ; Spectrum analysis ; Substrates ; Thin films</subject><ispartof>Journal of materials chemistry. C, Materials for optical and electronic devices, 2020-09, Vol.8 (34), p.11822-11829</ispartof><rights>Copyright Royal Society of Chemistry 2020</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c348t-87df3e3c6b62504a01f8d1b956ac320e4d30e19300e152e248a4872a4e85f35b3</citedby><cites>FETCH-LOGICAL-c348t-87df3e3c6b62504a01f8d1b956ac320e4d30e19300e152e248a4872a4e85f35b3</cites><orcidid>0000-0003-0453-0765 ; 0000-0003-0174-2383 ; 0000-0001-6485-6156 ; 0000-0002-8739-9952 ; 0000-0002-8455-4582 ; 0000-0002-2919-1862 ; 0000-0002-2565-9675</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,780,784,27923,27924</link.rule.ids></links><search><creatorcontrib>Sharma, Apoorva</creatorcontrib><creatorcontrib>Matthes, Patrick</creatorcontrib><creatorcontrib>Soldatov, Ivan</creatorcontrib><creatorcontrib>Arekapudi, Sri Sai Phani Kanth</creatorcontrib><creatorcontrib>Böhm, Benny</creatorcontrib><creatorcontrib>Lindner, Marina</creatorcontrib><creatorcontrib>Selyshchev, Oleksandr</creatorcontrib><creatorcontrib>Thi Ngoc Ha, Nguyen</creatorcontrib><creatorcontrib>Mehring, Michael</creatorcontrib><creatorcontrib>Tegenkamp, Christoph</creatorcontrib><creatorcontrib>Schulz, Stefan E</creatorcontrib><creatorcontrib>Zahn, Dietrich R. T</creatorcontrib><creatorcontrib>Paltiel, Yossi</creatorcontrib><creatorcontrib>Hellwig, Olav</creatorcontrib><creatorcontrib>Salvan, Georgeta</creatorcontrib><title>Control of magneto-optical properties of cobalt-layers by adsorption of α-helical polyalanine self-assembled monolayers</title><title>Journal of materials chemistry. C, Materials for optical and electronic devices</title><description>The adsorption of chiral molecules was recently shown to trigger a change in the magnetisation of mesoscopic magnetic domains in a ferromagnetic underlayer. In this work, we investigated the macroscopic (magneto-)optical response of chemisorbed α-helical polyalanine self-assembled monolayers (SAMs) on a gold and gold-capped-cobalt thin film on Au substrates using spectroscopic ellipsometry and magneto-optical Kerr effect spectroscopy and microscopy. The optical and magneto-optical spectra reveal selective chemisorption of the α-helical polyalanine molecules depending on the orientation of the substrate remanent magnetisation during the SAMs process. Moreover, a sign change of the magneto-optical response was observed in some of the magnetic substrates after the chiral SAMs formation.
Adsorption of α-helical polyaniline self-assembled monolayers onto magnetic substrates containing a thin Co layer determines the magneto-optical response.</description><subject>Adsorption</subject><subject>Chemisorption</subject><subject>Cobalt</subject><subject>Ferromagnetism</subject><subject>Gold</subject><subject>Kerr effects</subject><subject>Kerr magnetooptical effect</subject><subject>Magnetic domains</subject><subject>Magnetic properties</subject><subject>Magnetization</subject><subject>Monolayers</subject><subject>Optical properties</subject><subject>Self-assembled monolayers</subject><subject>Self-assembly</subject><subject>Spectroellipsometry</subject><subject>Spectrum analysis</subject><subject>Substrates</subject><subject>Thin films</subject><issn>2050-7526</issn><issn>2050-7534</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2020</creationdate><recordtype>article</recordtype><recordid>eNp9kE1LxDAQhosouKx78S5UvAnRfDVtj1I_ccHLei5pOtWuaVOTLNif5R_xN5m1st6cw8zA-8wM80bRMcEXBLP8ssZeYZoy_rYXzShOMEoTxvd3PRWH0cK5NQ6REZGJfBZ9FKb31ujYNHEnX3rwBpnBt0rqeLBmAOtbcFtVmUpqj7Qcwbq4GmNZO2MDavqt_PWJXkFPc0aPUsu-7SF2oBsknYOu0lDHnenNtOEoOmikdrD4rfPo-fZmVdyj5dPdQ3G1RIrxzKMsrRsGTIlK0ARziUmT1aTKEyEVoxh4zTCQnOGQEwqUZ5JnKZUcsqRhScXm0dm0N3zzvgHny7XZ2D6cLClnuSAiFUmgzidKWeOchaYcbNtJO5YEl1tzy2u8Kn7MfQzwyQRbp3bcn_lBP_1PL4fw0jda5YPm</recordid><startdate>20200914</startdate><enddate>20200914</enddate><creator>Sharma, Apoorva</creator><creator>Matthes, Patrick</creator><creator>Soldatov, Ivan</creator><creator>Arekapudi, Sri Sai Phani Kanth</creator><creator>Böhm, Benny</creator><creator>Lindner, Marina</creator><creator>Selyshchev, Oleksandr</creator><creator>Thi Ngoc Ha, Nguyen</creator><creator>Mehring, Michael</creator><creator>Tegenkamp, Christoph</creator><creator>Schulz, Stefan E</creator><creator>Zahn, Dietrich R. T</creator><creator>Paltiel, Yossi</creator><creator>Hellwig, Olav</creator><creator>Salvan, Georgeta</creator><general>Royal Society of Chemistry</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7SP</scope><scope>7U5</scope><scope>8FD</scope><scope>L7M</scope><orcidid>https://orcid.org/0000-0003-0453-0765</orcidid><orcidid>https://orcid.org/0000-0003-0174-2383</orcidid><orcidid>https://orcid.org/0000-0001-6485-6156</orcidid><orcidid>https://orcid.org/0000-0002-8739-9952</orcidid><orcidid>https://orcid.org/0000-0002-8455-4582</orcidid><orcidid>https://orcid.org/0000-0002-2919-1862</orcidid><orcidid>https://orcid.org/0000-0002-2565-9675</orcidid></search><sort><creationdate>20200914</creationdate><title>Control of magneto-optical properties of cobalt-layers by adsorption of α-helical polyalanine self-assembled monolayers</title><author>Sharma, Apoorva ; Matthes, Patrick ; Soldatov, Ivan ; Arekapudi, Sri Sai Phani Kanth ; Böhm, Benny ; Lindner, Marina ; Selyshchev, Oleksandr ; Thi Ngoc Ha, Nguyen ; Mehring, Michael ; Tegenkamp, Christoph ; Schulz, Stefan E ; Zahn, Dietrich R. 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In this work, we investigated the macroscopic (magneto-)optical response of chemisorbed α-helical polyalanine self-assembled monolayers (SAMs) on a gold and gold-capped-cobalt thin film on Au substrates using spectroscopic ellipsometry and magneto-optical Kerr effect spectroscopy and microscopy. The optical and magneto-optical spectra reveal selective chemisorption of the α-helical polyalanine molecules depending on the orientation of the substrate remanent magnetisation during the SAMs process. Moreover, a sign change of the magneto-optical response was observed in some of the magnetic substrates after the chiral SAMs formation.
Adsorption of α-helical polyaniline self-assembled monolayers onto magnetic substrates containing a thin Co layer determines the magneto-optical response.</abstract><cop>Cambridge</cop><pub>Royal Society of Chemistry</pub><doi>10.1039/d0tc02734k</doi><tpages>8</tpages><orcidid>https://orcid.org/0000-0003-0453-0765</orcidid><orcidid>https://orcid.org/0000-0003-0174-2383</orcidid><orcidid>https://orcid.org/0000-0001-6485-6156</orcidid><orcidid>https://orcid.org/0000-0002-8739-9952</orcidid><orcidid>https://orcid.org/0000-0002-8455-4582</orcidid><orcidid>https://orcid.org/0000-0002-2919-1862</orcidid><orcidid>https://orcid.org/0000-0002-2565-9675</orcidid></addata></record> |
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| ispartof | Journal of materials chemistry. C, Materials for optical and electronic devices, 2020-09, Vol.8 (34), p.11822-11829 |
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| language | eng |
| recordid | cdi_crossref_primary_10_1039_D0TC02734K |
| source | Royal Society Of Chemistry Journals 2008- |
| subjects | Adsorption Chemisorption Cobalt Ferromagnetism Gold Kerr effects Kerr magnetooptical effect Magnetic domains Magnetic properties Magnetization Monolayers Optical properties Self-assembled monolayers Self-assembly Spectroellipsometry Spectrum analysis Substrates Thin films |
| title | Control of magneto-optical properties of cobalt-layers by adsorption of α-helical polyalanine self-assembled monolayers |
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