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Giant exchange bias...
Giant exchange bias in micro-sized magnetic shape memory alloy particles
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- Liao, Xiaoqi (författare)
- Shenzhen Univ, Coll Phys & Optoelect Engn, Shenzhen 518060, Peoples R China.;Hanshan Normal Univ, Sch Mat Sci & Engn, Chaozhou 521041, Peoples R China.
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- Svedlindh, Peter (författare)
- Uppsala universitet,Fasta tillståndets fysik
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- Salazar-Alvarez, German (författare)
- Uppsala universitet,Fasta tillståndets fysik
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- Zeng, Yu-Jia (författare)
- Shenzhen Univ, Coll Phys & Optoelect Engn, Shenzhen 518060, Peoples R China.
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- Huang, Rui (författare)
- Hanshan Normal Univ, Sch Mat Sci & Engn, Chaozhou 521041, Peoples R China.
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- Yang, Sen (författare)
- Xi An Jiao Tong Univ, MOE Key Lab Nonequilibrium Synth & Modulat Conden, Xian 710049, Peoples R China.;Xi An Jiao Tong Univ, State Key Lab Mech Behav Mat, Xian 710049, Peoples R China.
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- Wang, Yu (författare)
- Xi An Jiao Tong Univ, MOE Key Lab Nonequilibrium Synth & Modulat Conden, Xian 710049, Peoples R China.;Xi An Jiao Tong Univ, State Key Lab Mech Behav Mat, Xian 710049, Peoples R China.
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Shenzhen Univ, Coll Phys & Optoelect Engn, Shenzhen 518060, Peoples R China;Hanshan Normal Univ, Sch Mat Sci & Engn, Chaozhou 521041, Peoples R China. Fasta tillståndets fysik (creator_code:org_t)
- 2020-11-03
- 2021
- Engelska.
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Ingår i: Journal of Physics D. - : Institute of Physics Publishing (IOPP). - 0022-3727 .- 1361-6463. ; 54:4
- Relaterad länk:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- We report the effects of the magnetic ground sate and microstructure on exchange bias (EB) in ball milled Ni44Co6Mn39.5Sn10.5 alloys. A giant bias field of 1.49 T has been obtained for the micron-sized particles after 15 h milling, which is considerably larger than that of 2 h milled platelets (0.35 T) and that of the bulk alloy (0.12 T). This giant bias field is attributed to the increased volume fraction of antiferromagnetic/ferromagnetic interface, the enhanced antiferromagnetic fraction and the formed agglomerates. Our results reveal the critical roles of the magnetic ground state and microstructure of milled alloys in determining EB.
Ämnesord
- NATURVETENSKAP -- Fysik -- Den kondenserade materiens fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Condensed Matter Physics (hsv//eng)
Nyckelord
- mechanical alloying
- magnetic particles
- exchange bias
- spin glass
- antiferromagnetic
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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