دورية أكاديمية
Design of compensated ferrimagnetic Heusler alloys for giant tunable exchange bias.
| العنوان: | Design of compensated ferrimagnetic Heusler alloys for giant tunable exchange bias. |
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| المؤلفون: | Nayak AK; Max Planck Institute for Chemical Physics of Solids, Nöthnitzer Str. 40 D-01187 Dresden, Germany., Nicklas M; Max Planck Institute for Chemical Physics of Solids, Nöthnitzer Str. 40 D-01187 Dresden, Germany., Chadov S; Max Planck Institute for Chemical Physics of Solids, Nöthnitzer Str. 40 D-01187 Dresden, Germany., Khuntia P; Max Planck Institute for Chemical Physics of Solids, Nöthnitzer Str. 40 D-01187 Dresden, Germany., Shekhar C; Max Planck Institute for Chemical Physics of Solids, Nöthnitzer Str. 40 D-01187 Dresden, Germany., Kalache A; Max Planck Institute for Chemical Physics of Solids, Nöthnitzer Str. 40 D-01187 Dresden, Germany., Baenitz M; Max Planck Institute for Chemical Physics of Solids, Nöthnitzer Str. 40 D-01187 Dresden, Germany., Skourski Y; Dresden High Magnetic Field Laboratory (HLD-EMFL), Helmholtz-Zentrum Dresden-Rossendorf, D-01328 Dresden, Germany., Guduru VK; High Field Magnet Laboratory (HFML-EMFL), Radboud University, Toernooiveld 7 6525 ED Nijmegen, The Netherlands., Puri A; High Field Magnet Laboratory (HFML-EMFL), Radboud University, Toernooiveld 7 6525 ED Nijmegen, The Netherlands., Zeitler U; High Field Magnet Laboratory (HFML-EMFL), Radboud University, Toernooiveld 7 6525 ED Nijmegen, The Netherlands., Coey JM; School of Physics and CRANN, Trinity College, Dublin 2, Ireland., Felser C; Max Planck Institute for Chemical Physics of Solids, Nöthnitzer Str. 40 D-01187 Dresden, Germany. |
| المصدر: | Nature materials [Nat Mater] 2015 Jul; Vol. 14 (7), pp. 679-84. Date of Electronic Publication: 2015 Mar 16. |
| نوع المنشور: | Journal Article |
| اللغة: | English |
| بيانات الدورية: | Publisher: Nature Pub. Group Country of Publication: England NLM ID: 101155473 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1476-4660 (Electronic) Linking ISSN: 14761122 NLM ISO Abbreviation: Nat Mater Subsets: PubMed not MEDLINE |
| أسماء مطبوعة: | Original Publication: London, UK : Nature Pub. Group, [2002]- |
| مستخلص: | Rational material design can accelerate the discovery of materials with improved functionalities. This approach can be implemented in Heusler compounds with tunable magnetic sublattices to demonstrate unprecedented magnetic properties. Here, we have designed a family of Heusler alloys with a compensated ferrimagnetic state. In the vicinity of the compensation composition in Mn-Pt-Ga, a giant exchange bias (EB) of more than 3 T and a large coercivity are established. The large exchange anisotropy originates from the exchange interaction between the compensated host and ferrimagnetic clusters that arise from intrinsic anti-site disorder. Our design approach is also demonstrated on a second material with a magnetic transition above room temperature, Mn-Fe-Ga, exemplifying the universality of the concept and the feasibility of room-temperature applications. These findings may lead to the development of magneto-electronic devices and rare-earth-free exchange-biased hard magnets, where the second quadrant magnetization can be stabilized by the exchange bias. |
| التعليقات: | Comment in: Nat Mater. 2015 Jul;14(7):655-6. (PMID: 26099708) |
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| تواريخ الأحداث: | Date Created: 20150317 Date Completed: 20160219 Latest Revision: 20181113 |
| رمز التحديث: | 20240628 |
| DOI: | 10.1038/nmat4248 |
| PMID: | 25774953 |
| قاعدة البيانات: | MEDLINE |
Find this article in full text from Springer Verlag. 
Full Text Finder | تدمد: | 1476-4660 |
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| DOI: | 10.1038/nmat4248 |