Magnetic domain structure across the austenite–martensite interface in Ni50Mn25Ga20Fe5 single crystalline thin foil
The magnetic domain structure (MDS) at the martensite transformation interface is relevant for the complete understanding of functionalities in magnetic shape memory alloys. We study the MDS in Ni50Mn25Ga20Fe5 single crystalline foil using Lorentz transmission electron microscopy. The transformation...
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| Veröffentlicht in: | Applied physics letters 2021-11, Vol.119 (21) |
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| creator | Vronka, M. Straka, L. Klementová, M. Heczko, O. |
| description | The magnetic domain structure (MDS) at the martensite transformation interface is relevant for the complete understanding of functionalities in magnetic shape memory alloys. We study the MDS in Ni50Mn25Ga20Fe5 single crystalline foil using Lorentz transmission electron microscopy. The transformation interface is stabilized by decreasing foil thickness at a thickness of about 40 nm. The martensite in the thicker region contains no twin domains and exhibits dense labyrinth MDS with magnetization out-of-plane. The austenite in the thinner region exhibits broad magnetic domains with magnetization in-plane. The transformation interface is about 1 μm broad, formed by an unusual nanosized laminated structure of austenite and martensite. Within the interface region, the two distinct MDSs interpenetrate each other, with a labyrinth MDS of martensite changing suddenly to broad magnetic domains of austenite. The changes from dense to broad domains do not follow the underlying phase changes exactly but occur on antiphase boundaries, revealing their role in the overall MDS formation. |
| doi_str_mv | 10.1063/5.0066983 |
| format | Article |
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We study the MDS in Ni50Mn25Ga20Fe5 single crystalline foil using Lorentz transmission electron microscopy. The transformation interface is stabilized by decreasing foil thickness at a thickness of about 40 nm. The martensite in the thicker region contains no twin domains and exhibits dense labyrinth MDS with magnetization out-of-plane. The austenite in the thinner region exhibits broad magnetic domains with magnetization in-plane. The transformation interface is about 1 μm broad, formed by an unusual nanosized laminated structure of austenite and martensite. Within the interface region, the two distinct MDSs interpenetrate each other, with a labyrinth MDS of martensite changing suddenly to broad magnetic domains of austenite. The changes from dense to broad domains do not follow the underlying phase changes exactly but occur on antiphase boundaries, revealing their role in the overall MDS formation.</description><identifier>ISSN: 0003-6951</identifier><identifier>EISSN: 1077-3118</identifier><identifier>DOI: 10.1063/5.0066983</identifier><identifier>CODEN: APPLAB</identifier><language>eng</language><publisher>Melville: American Institute of Physics</publisher><subject>Antiphase boundaries ; Applied physics ; Austenite ; Crystal structure ; Crystallinity ; Foils ; Heat treating ; Magnetic domains ; Magnetization ; Martensite ; Martensitic transformations ; Shape memory alloys ; Thickness ; Transformations (mathematics)</subject><ispartof>Applied physics letters, 2021-11, Vol.119 (21)</ispartof><rights>Author(s)</rights><rights>2021 Author(s). 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We study the MDS in Ni50Mn25Ga20Fe5 single crystalline foil using Lorentz transmission electron microscopy. The transformation interface is stabilized by decreasing foil thickness at a thickness of about 40 nm. The martensite in the thicker region contains no twin domains and exhibits dense labyrinth MDS with magnetization out-of-plane. The austenite in the thinner region exhibits broad magnetic domains with magnetization in-plane. The transformation interface is about 1 μm broad, formed by an unusual nanosized laminated structure of austenite and martensite. Within the interface region, the two distinct MDSs interpenetrate each other, with a labyrinth MDS of martensite changing suddenly to broad magnetic domains of austenite. The changes from dense to broad domains do not follow the underlying phase changes exactly but occur on antiphase boundaries, revealing their role in the overall MDS formation.</description><subject>Antiphase boundaries</subject><subject>Applied physics</subject><subject>Austenite</subject><subject>Crystal structure</subject><subject>Crystallinity</subject><subject>Foils</subject><subject>Heat treating</subject><subject>Magnetic domains</subject><subject>Magnetization</subject><subject>Martensite</subject><subject>Martensitic transformations</subject><subject>Shape memory alloys</subject><subject>Thickness</subject><subject>Transformations (mathematics)</subject><issn>0003-6951</issn><issn>1077-3118</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2021</creationdate><recordtype>article</recordtype><recordid>eNqdkM1KAzEUhYMoWKsL32DAlcLUm6SZn6UUW4VWN7oOSSapKdNMTTJCd76Db-iTmNqCe1f3HPg4l3MQusQwwlDQWzYCKIq6okdogKEsc4pxdYwGAEDzomb4FJ2FsEqWEUoHqF-IpdPRqqzp1sK6LETfq9h7nQnluxCy-JZkH6J2Nurvz6-18EmHZDLrovZGqJ3KniyDhSNsJghMNcuCdctWZ8pvQxRta51OUYkznW3P0YkRbdAXhztEr9P7l8lDPn-ePU7u5rkirIy5lqIUFCvTAKmNBCqqeixVLVJTWRNMKcPMaNbIqpQSADNSSCWgAkJ0Scd0iK72uRvfvfc6RL7qeu_SS04KwGkgwopEXe-p38JeG77xNtXccgx8typn_LBqYm_2bFA2img79z_4o_N_IN80hv4AyzOHDQ</recordid><startdate>20211122</startdate><enddate>20211122</enddate><creator>Vronka, M.</creator><creator>Straka, L.</creator><creator>Klementová, M.</creator><creator>Heczko, O.</creator><general>American Institute of Physics</general><scope>AAYXX</scope><scope>CITATION</scope><scope>8FD</scope><scope>H8D</scope><scope>L7M</scope><orcidid>https://orcid.org/0000-0001-8270-5386</orcidid><orcidid>https://orcid.org/0000-0002-0726-2199</orcidid><orcidid>https://orcid.org/0000-0003-1136-4996</orcidid><orcidid>https://orcid.org/0000-0002-7647-3141</orcidid></search><sort><creationdate>20211122</creationdate><title>Magnetic domain structure across the austenite–martensite interface in Ni50Mn25Ga20Fe5 single crystalline thin foil</title><author>Vronka, M. ; Straka, L. ; Klementová, M. ; Heczko, O.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c257t-eba7a31cfd029fb03a894bc9a063b92133515fe5db87bb001526bca08022e7343</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2021</creationdate><topic>Antiphase boundaries</topic><topic>Applied physics</topic><topic>Austenite</topic><topic>Crystal structure</topic><topic>Crystallinity</topic><topic>Foils</topic><topic>Heat treating</topic><topic>Magnetic domains</topic><topic>Magnetization</topic><topic>Martensite</topic><topic>Martensitic transformations</topic><topic>Shape memory alloys</topic><topic>Thickness</topic><topic>Transformations (mathematics)</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Vronka, M.</creatorcontrib><creatorcontrib>Straka, L.</creatorcontrib><creatorcontrib>Klementová, M.</creatorcontrib><creatorcontrib>Heczko, O.</creatorcontrib><collection>CrossRef</collection><collection>Technology Research Database</collection><collection>Aerospace Database</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>Applied physics letters</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Vronka, M.</au><au>Straka, L.</au><au>Klementová, M.</au><au>Heczko, O.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Magnetic domain structure across the austenite–martensite interface in Ni50Mn25Ga20Fe5 single crystalline thin foil</atitle><jtitle>Applied physics letters</jtitle><date>2021-11-22</date><risdate>2021</risdate><volume>119</volume><issue>21</issue><issn>0003-6951</issn><eissn>1077-3118</eissn><coden>APPLAB</coden><abstract>The magnetic domain structure (MDS) at the martensite transformation interface is relevant for the complete understanding of functionalities in magnetic shape memory alloys. We study the MDS in Ni50Mn25Ga20Fe5 single crystalline foil using Lorentz transmission electron microscopy. The transformation interface is stabilized by decreasing foil thickness at a thickness of about 40 nm. The martensite in the thicker region contains no twin domains and exhibits dense labyrinth MDS with magnetization out-of-plane. The austenite in the thinner region exhibits broad magnetic domains with magnetization in-plane. The transformation interface is about 1 μm broad, formed by an unusual nanosized laminated structure of austenite and martensite. Within the interface region, the two distinct MDSs interpenetrate each other, with a labyrinth MDS of martensite changing suddenly to broad magnetic domains of austenite. The changes from dense to broad domains do not follow the underlying phase changes exactly but occur on antiphase boundaries, revealing their role in the overall MDS formation.</abstract><cop>Melville</cop><pub>American Institute of Physics</pub><doi>10.1063/5.0066983</doi><tpages>6</tpages><orcidid>https://orcid.org/0000-0001-8270-5386</orcidid><orcidid>https://orcid.org/0000-0002-0726-2199</orcidid><orcidid>https://orcid.org/0000-0003-1136-4996</orcidid><orcidid>https://orcid.org/0000-0002-7647-3141</orcidid></addata></record> |
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| source | AIP Journals Complete; Alma/SFX Local Collection |
| subjects | Antiphase boundaries Applied physics Austenite Crystal structure Crystallinity Foils Heat treating Magnetic domains Magnetization Martensite Martensitic transformations Shape memory alloys Thickness Transformations (mathematics) |
| title | Magnetic domain structure across the austenite–martensite interface in Ni50Mn25Ga20Fe5 single crystalline thin foil |
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