Spin-driven ordering of Cr in the equiatomic high entropy alloy NiFeCrCo
Spin-driven ordering of Cr in an equiatomic fcc NiFeCrCo high entropy alloy (HEA) was predicted by first-principles calculations. Ordering of Cr is driven by the reduction in energy realized by surrounding anti-ferromagnetic Cr with ferromagnetic Ni, Fe, and Co in an alloyed L12 structure. The fully...
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| Veröffentlicht in: | Applied physics letters 2015-04, Vol.106 (16) |
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| container_title | Applied physics letters |
| container_volume | 106 |
| creator | Niu, C. Zaddach, A. J. Oni, A. A. Sang, X. Hurt, J. W. LeBeau, J. M. Koch, C. C. Irving, D. L. |
| description | Spin-driven ordering of Cr in an equiatomic fcc NiFeCrCo high entropy alloy (HEA) was predicted by first-principles calculations. Ordering of Cr is driven by the reduction in energy realized by surrounding anti-ferromagnetic Cr with ferromagnetic Ni, Fe, and Co in an alloyed L12 structure. The fully Cr-ordered alloyed L12 phase was predicted to have a magnetic moment that is 36% of that for the magnetically frustrated random solid solution. Three samples were synthesized by milling or casting/annealing. The cast/annealed sample was found to have a low temperature magnetic moment that is 44% of the moment in the milled sample, which is consistent with theoretical predictions for ordering. Scanning transmission electron microscopy measurements were performed and the presence of ordered nano-domains in cast/annealed samples throughout the equiatomic NiFeCrCo HEA was identified. |
| doi_str_mv | 10.1063/1.4918996 |
| format | Article |
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J. ; Oni, A. A. ; Sang, X. ; Hurt, J. W. ; LeBeau, J. M. ; Koch, C. C. ; Irving, D. L.</creator><creatorcontrib>Niu, C. ; Zaddach, A. J. ; Oni, A. A. ; Sang, X. ; Hurt, J. W. ; LeBeau, J. M. ; Koch, C. C. ; Irving, D. L.</creatorcontrib><description>Spin-driven ordering of Cr in an equiatomic fcc NiFeCrCo high entropy alloy (HEA) was predicted by first-principles calculations. Ordering of Cr is driven by the reduction in energy realized by surrounding anti-ferromagnetic Cr with ferromagnetic Ni, Fe, and Co in an alloyed L12 structure. The fully Cr-ordered alloyed L12 phase was predicted to have a magnetic moment that is 36% of that for the magnetically frustrated random solid solution. Three samples were synthesized by milling or casting/annealing. The cast/annealed sample was found to have a low temperature magnetic moment that is 44% of the moment in the milled sample, which is consistent with theoretical predictions for ordering. Scanning transmission electron microscopy measurements were performed and the presence of ordered nano-domains in cast/annealed samples throughout the equiatomic NiFeCrCo HEA was identified.</description><identifier>ISSN: 0003-6951</identifier><identifier>EISSN: 1077-3118</identifier><identifier>DOI: 10.1063/1.4918996</identifier><language>eng</language><publisher>Melville: American Institute of Physics</publisher><subject>ANNEALING ; ANTIFERROMAGNETIC MATERIALS ; ANTIFERROMAGNETISM ; Applied physics ; CASTING ; CHROMIUM ; COBALT ; CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY ; Domains ; ENTROPY ; FCC LATTICES ; FERROMAGNETIC MATERIALS ; FERROMAGNETISM ; First principles ; High entropy alloys ; INTERMETALLIC COMPOUNDS ; IRON ; MAGNETIC MOMENTS ; NICKEL ; Predictions ; RANDOMNESS ; Scanning electron microscopy ; Scanning transmission electron microscopy ; SOLID SOLUTIONS ; SPIN ; TRANSMISSION ELECTRON MICROSCOPY</subject><ispartof>Applied physics letters, 2015-04, Vol.106 (16)</ispartof><rights>2015 AIP Publishing LLC.</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c386t-6905cb9d84985fb9ecf0d19bae10faacef8482590a5a41af84c99393a3326abb3</citedby><cites>FETCH-LOGICAL-c386t-6905cb9d84985fb9ecf0d19bae10faacef8482590a5a41af84c99393a3326abb3</cites><orcidid>0000-0002-9864-0553 ; 0000-0002-3002-5888 ; 0000-0003-0530-0427</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>230,314,776,780,881,27901,27902</link.rule.ids><backlink>$$Uhttps://www.osti.gov/biblio/22398922$$D View this record in Osti.gov$$Hfree_for_read</backlink></links><search><creatorcontrib>Niu, C.</creatorcontrib><creatorcontrib>Zaddach, A. 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The cast/annealed sample was found to have a low temperature magnetic moment that is 44% of the moment in the milled sample, which is consistent with theoretical predictions for ordering. Scanning transmission electron microscopy measurements were performed and the presence of ordered nano-domains in cast/annealed samples throughout the equiatomic NiFeCrCo HEA was identified.</description><subject>ANNEALING</subject><subject>ANTIFERROMAGNETIC MATERIALS</subject><subject>ANTIFERROMAGNETISM</subject><subject>Applied physics</subject><subject>CASTING</subject><subject>CHROMIUM</subject><subject>COBALT</subject><subject>CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY</subject><subject>Domains</subject><subject>ENTROPY</subject><subject>FCC LATTICES</subject><subject>FERROMAGNETIC MATERIALS</subject><subject>FERROMAGNETISM</subject><subject>First principles</subject><subject>High entropy alloys</subject><subject>INTERMETALLIC COMPOUNDS</subject><subject>IRON</subject><subject>MAGNETIC MOMENTS</subject><subject>NICKEL</subject><subject>Predictions</subject><subject>RANDOMNESS</subject><subject>Scanning electron microscopy</subject><subject>Scanning transmission electron microscopy</subject><subject>SOLID SOLUTIONS</subject><subject>SPIN</subject><subject>TRANSMISSION ELECTRON MICROSCOPY</subject><issn>0003-6951</issn><issn>1077-3118</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2015</creationdate><recordtype>article</recordtype><recordid>eNo9kE9LAzEUxIMoWKsHv0HAk4et-bO7zTvKYq1Q9KCeQzabdFPaZJukQr-9Ky1e5jHw480wCN1TMqOk5k90VgIVAPUFmlAynxecUnGJJoQQXtRQ0Wt0k9JmtBXjfIKWn4PzRRfdj_E4xM5E59c4WNxE7DzOvcFmf3Aqh53TuHfrHhufYxiOWG234Yjf3cI0sQm36MqqbTJ35ztF34uXr2ZZrD5e35rnVaG5qPNYgVS6hU6UICrbgtGWdBRaZSixSmljRSlYBURVqqRqdBqAA1ecs1q1LZ-ih9PfkLKTSbtsdK-D90ZnyRgHAaP-U0MM-4NJWW7CIfqxmGSUjQmsZGSkHk-UjiGlaKwcotupeJSUyL85JZXnOfkvfnRleg</recordid><startdate>20150420</startdate><enddate>20150420</enddate><creator>Niu, C.</creator><creator>Zaddach, A. 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J.</creatorcontrib><creatorcontrib>Oni, A. A.</creatorcontrib><creatorcontrib>Sang, X.</creatorcontrib><creatorcontrib>Hurt, J. W.</creatorcontrib><creatorcontrib>LeBeau, J. M.</creatorcontrib><creatorcontrib>Koch, C. C.</creatorcontrib><creatorcontrib>Irving, D. L.</creatorcontrib><collection>CrossRef</collection><collection>Technology Research Database</collection><collection>Aerospace Database</collection><collection>Advanced Technologies Database with Aerospace</collection><collection>OSTI.GOV</collection><jtitle>Applied physics letters</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Niu, C.</au><au>Zaddach, A. J.</au><au>Oni, A. A.</au><au>Sang, X.</au><au>Hurt, J. W.</au><au>LeBeau, J. M.</au><au>Koch, C. C.</au><au>Irving, D. L.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Spin-driven ordering of Cr in the equiatomic high entropy alloy NiFeCrCo</atitle><jtitle>Applied physics letters</jtitle><date>2015-04-20</date><risdate>2015</risdate><volume>106</volume><issue>16</issue><issn>0003-6951</issn><eissn>1077-3118</eissn><abstract>Spin-driven ordering of Cr in an equiatomic fcc NiFeCrCo high entropy alloy (HEA) was predicted by first-principles calculations. Ordering of Cr is driven by the reduction in energy realized by surrounding anti-ferromagnetic Cr with ferromagnetic Ni, Fe, and Co in an alloyed L12 structure. The fully Cr-ordered alloyed L12 phase was predicted to have a magnetic moment that is 36% of that for the magnetically frustrated random solid solution. Three samples were synthesized by milling or casting/annealing. The cast/annealed sample was found to have a low temperature magnetic moment that is 44% of the moment in the milled sample, which is consistent with theoretical predictions for ordering. Scanning transmission electron microscopy measurements were performed and the presence of ordered nano-domains in cast/annealed samples throughout the equiatomic NiFeCrCo HEA was identified.</abstract><cop>Melville</cop><pub>American Institute of Physics</pub><doi>10.1063/1.4918996</doi><orcidid>https://orcid.org/0000-0002-9864-0553</orcidid><orcidid>https://orcid.org/0000-0002-3002-5888</orcidid><orcidid>https://orcid.org/0000-0003-0530-0427</orcidid><oa>free_for_read</oa></addata></record> |
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| source | AIP Journals Complete; Alma/SFX Local Collection |
| subjects | ANNEALING ANTIFERROMAGNETIC MATERIALS ANTIFERROMAGNETISM Applied physics CASTING CHROMIUM COBALT CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY Domains ENTROPY FCC LATTICES FERROMAGNETIC MATERIALS FERROMAGNETISM First principles High entropy alloys INTERMETALLIC COMPOUNDS IRON MAGNETIC MOMENTS NICKEL Predictions RANDOMNESS Scanning electron microscopy Scanning transmission electron microscopy SOLID SOLUTIONS SPIN TRANSMISSION ELECTRON MICROSCOPY |
| title | Spin-driven ordering of Cr in the equiatomic high entropy alloy NiFeCrCo |
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