Topological Hall effect in ferrimagnetic CoTb single layer
•Topological Hall effect (THE) is observed in ferrimagnetic CoTb single layer for the first time.•Most prominent THE is found near compensation composition or Hall transition temperature.•THE is closely related to anisotropic antiferromagnetic coupling between Co and Tb moments.•Magnetic bubble-like...
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| Veröffentlicht in: | Journal of magnetism and magnetic materials 2019-10, Vol.487, p.165316, Article 165316 |
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| container_start_page | 165316 |
| container_title | Journal of magnetism and magnetic materials |
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| creator | Yu, Jihang Liu, Liang Deng, Jinyu Zhou, Chenghang Liu, Hongxi Poh, Francis Chen, Jingsheng |
| description | •Topological Hall effect (THE) is observed in ferrimagnetic CoTb single layer for the first time.•Most prominent THE is found near compensation composition or Hall transition temperature.•THE is closely related to anisotropic antiferromagnetic coupling between Co and Tb moments.•Magnetic bubble-like domain structure can be observed.
Hall transport properties of single ferrimagnetic CoTb thin films were systematically studied. We report on the extraordinary Hall signals near the magnetization compensation point. The Hall “anomaly”, which is reminiscent of the Topological Hall effect (THE), is distinguished from the anomalous Hall effect (AHE) by fitting the overall Hall resistance signal. At the Hall anomaly regime, magnetic bubbles are observed by optical magnetometry. We propose the observed Hall anomalies originate from the noncollinear spin texture stabilized by Dzyaloshinskii–Moriya interaction (DMI), which is closely related to the anisotropic antiferromagnetic coupling between Co and Tb moments. The novel phenomena found in CoTb thin films broaden the physic understanding of THE and may stimulate on further studies of THE in amorphous materials. |
| doi_str_mv | 10.1016/j.jmmm.2019.165316 |
| format | Article |
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Hall transport properties of single ferrimagnetic CoTb thin films were systematically studied. We report on the extraordinary Hall signals near the magnetization compensation point. The Hall “anomaly”, which is reminiscent of the Topological Hall effect (THE), is distinguished from the anomalous Hall effect (AHE) by fitting the overall Hall resistance signal. At the Hall anomaly regime, magnetic bubbles are observed by optical magnetometry. We propose the observed Hall anomalies originate from the noncollinear spin texture stabilized by Dzyaloshinskii–Moriya interaction (DMI), which is closely related to the anisotropic antiferromagnetic coupling between Co and Tb moments. The novel phenomena found in CoTb thin films broaden the physic understanding of THE and may stimulate on further studies of THE in amorphous materials.</description><identifier>ISSN: 0304-8853</identifier><identifier>EISSN: 1873-4766</identifier><identifier>DOI: 10.1016/j.jmmm.2019.165316</identifier><language>eng</language><publisher>Amsterdam: Elsevier B.V</publisher><subject>Amorphous materials ; Anomalies ; Antiferromagnetic coupling ; Antiferromagnetism ; Electromagnetism ; Ferrimagnetism ; Hall effect ; Magnetic measurement ; Magnetism ; Thin films ; Topological Hall effect ; Topology ; Transport properties</subject><ispartof>Journal of magnetism and magnetic materials, 2019-10, Vol.487, p.165316, Article 165316</ispartof><rights>2019 Elsevier B.V.</rights><rights>Copyright Elsevier BV Oct 1, 2019</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c328t-d33d8e073433380620d57d0e8488af5f6329ebe654f0c68a0c7eef01e018dcfb3</citedby><cites>FETCH-LOGICAL-c328t-d33d8e073433380620d57d0e8488af5f6329ebe654f0c68a0c7eef01e018dcfb3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://dx.doi.org/10.1016/j.jmmm.2019.165316$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,780,784,3550,27924,27925,45995</link.rule.ids></links><search><creatorcontrib>Yu, Jihang</creatorcontrib><creatorcontrib>Liu, Liang</creatorcontrib><creatorcontrib>Deng, Jinyu</creatorcontrib><creatorcontrib>Zhou, Chenghang</creatorcontrib><creatorcontrib>Liu, Hongxi</creatorcontrib><creatorcontrib>Poh, Francis</creatorcontrib><creatorcontrib>Chen, Jingsheng</creatorcontrib><title>Topological Hall effect in ferrimagnetic CoTb single layer</title><title>Journal of magnetism and magnetic materials</title><description>•Topological Hall effect (THE) is observed in ferrimagnetic CoTb single layer for the first time.•Most prominent THE is found near compensation composition or Hall transition temperature.•THE is closely related to anisotropic antiferromagnetic coupling between Co and Tb moments.•Magnetic bubble-like domain structure can be observed.
Hall transport properties of single ferrimagnetic CoTb thin films were systematically studied. We report on the extraordinary Hall signals near the magnetization compensation point. The Hall “anomaly”, which is reminiscent of the Topological Hall effect (THE), is distinguished from the anomalous Hall effect (AHE) by fitting the overall Hall resistance signal. At the Hall anomaly regime, magnetic bubbles are observed by optical magnetometry. We propose the observed Hall anomalies originate from the noncollinear spin texture stabilized by Dzyaloshinskii–Moriya interaction (DMI), which is closely related to the anisotropic antiferromagnetic coupling between Co and Tb moments. The novel phenomena found in CoTb thin films broaden the physic understanding of THE and may stimulate on further studies of THE in amorphous materials.</description><subject>Amorphous materials</subject><subject>Anomalies</subject><subject>Antiferromagnetic coupling</subject><subject>Antiferromagnetism</subject><subject>Electromagnetism</subject><subject>Ferrimagnetism</subject><subject>Hall effect</subject><subject>Magnetic measurement</subject><subject>Magnetism</subject><subject>Thin films</subject><subject>Topological Hall effect</subject><subject>Topology</subject><subject>Transport properties</subject><issn>0304-8853</issn><issn>1873-4766</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2019</creationdate><recordtype>article</recordtype><recordid>eNp9kMFKxDAURYMoOI7-gKuC69aXpE1TcSODOsKAm3EdOsnLkNI2NekI8_e21LWrt7nnvssh5J5CRoGKxyZruq7LGNAqo6LgVFyQFZUlT_NSiEuyAg55KmXBr8lNjA0A0FyKFXna-8G3_uh03Sbbum0TtBb1mLg-sRiC6-pjj6PTycbvD0l0_bHFpK3PGG7Jla3biHd_d02-3l73m226-3z_2LzsUs2ZHFPDuZEIJc855xIEA1OUBlDmUta2sIKzCg8oityCFrIGXSJaoAhUGm0PfE0elt4h-O8TxlE1_hT66aVirKh4QQGqKcWWlA4-xoBWDfP4cFYU1OxINWp2pGZHanE0Qc8LhNP-H4dBRe2w12hcmCQo491_-C_Zcm6D</recordid><startdate>20191001</startdate><enddate>20191001</enddate><creator>Yu, Jihang</creator><creator>Liu, Liang</creator><creator>Deng, Jinyu</creator><creator>Zhou, Chenghang</creator><creator>Liu, Hongxi</creator><creator>Poh, Francis</creator><creator>Chen, Jingsheng</creator><general>Elsevier B.V</general><general>Elsevier BV</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7SR</scope><scope>7U5</scope><scope>8BQ</scope><scope>8FD</scope><scope>JG9</scope><scope>L7M</scope></search><sort><creationdate>20191001</creationdate><title>Topological Hall effect in ferrimagnetic CoTb single layer</title><author>Yu, Jihang ; Liu, Liang ; Deng, Jinyu ; Zhou, Chenghang ; Liu, Hongxi ; Poh, Francis ; Chen, Jingsheng</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c328t-d33d8e073433380620d57d0e8488af5f6329ebe654f0c68a0c7eef01e018dcfb3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2019</creationdate><topic>Amorphous materials</topic><topic>Anomalies</topic><topic>Antiferromagnetic coupling</topic><topic>Antiferromagnetism</topic><topic>Electromagnetism</topic><topic>Ferrimagnetism</topic><topic>Hall effect</topic><topic>Magnetic measurement</topic><topic>Magnetism</topic><topic>Thin films</topic><topic>Topological Hall effect</topic><topic>Topology</topic><topic>Transport properties</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Yu, Jihang</creatorcontrib><creatorcontrib>Liu, Liang</creatorcontrib><creatorcontrib>Deng, Jinyu</creatorcontrib><creatorcontrib>Zhou, Chenghang</creatorcontrib><creatorcontrib>Liu, Hongxi</creatorcontrib><creatorcontrib>Poh, Francis</creatorcontrib><creatorcontrib>Chen, Jingsheng</creatorcontrib><collection>CrossRef</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>Journal of magnetism and magnetic materials</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Yu, Jihang</au><au>Liu, Liang</au><au>Deng, Jinyu</au><au>Zhou, Chenghang</au><au>Liu, Hongxi</au><au>Poh, Francis</au><au>Chen, Jingsheng</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Topological Hall effect in ferrimagnetic CoTb single layer</atitle><jtitle>Journal of magnetism and magnetic materials</jtitle><date>2019-10-01</date><risdate>2019</risdate><volume>487</volume><spage>165316</spage><pages>165316-</pages><artnum>165316</artnum><issn>0304-8853</issn><eissn>1873-4766</eissn><abstract>•Topological Hall effect (THE) is observed in ferrimagnetic CoTb single layer for the first time.•Most prominent THE is found near compensation composition or Hall transition temperature.•THE is closely related to anisotropic antiferromagnetic coupling between Co and Tb moments.•Magnetic bubble-like domain structure can be observed.
Hall transport properties of single ferrimagnetic CoTb thin films were systematically studied. We report on the extraordinary Hall signals near the magnetization compensation point. The Hall “anomaly”, which is reminiscent of the Topological Hall effect (THE), is distinguished from the anomalous Hall effect (AHE) by fitting the overall Hall resistance signal. At the Hall anomaly regime, magnetic bubbles are observed by optical magnetometry. We propose the observed Hall anomalies originate from the noncollinear spin texture stabilized by Dzyaloshinskii–Moriya interaction (DMI), which is closely related to the anisotropic antiferromagnetic coupling between Co and Tb moments. The novel phenomena found in CoTb thin films broaden the physic understanding of THE and may stimulate on further studies of THE in amorphous materials.</abstract><cop>Amsterdam</cop><pub>Elsevier B.V</pub><doi>10.1016/j.jmmm.2019.165316</doi></addata></record> |
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| subjects | Amorphous materials Anomalies Antiferromagnetic coupling Antiferromagnetism Electromagnetism Ferrimagnetism Hall effect Magnetic measurement Magnetism Thin films Topological Hall effect Topology Transport properties |
| title | Topological Hall effect in ferrimagnetic CoTb single layer |
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