Structure and magnetism of Fe-Co alloy nanoparticles
被引:27
作者:
Klencsar, Z.
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Hungarian Acad Sci, Res Ctr Nat Sci, Inst Mat & Environm Chem, Magyar Tudosok Korutja 2, H-1117 Budapest, HungaryHungarian Acad Sci, Res Ctr Nat Sci, Inst Mat & Environm Chem, Magyar Tudosok Korutja 2, H-1117 Budapest, Hungary
Klencsar, Z.
[1
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Nemeth, P.
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Hungarian Acad Sci, Res Ctr Nat Sci, Inst Mat & Environm Chem, Magyar Tudosok Korutja 2, H-1117 Budapest, HungaryHungarian Acad Sci, Res Ctr Nat Sci, Inst Mat & Environm Chem, Magyar Tudosok Korutja 2, H-1117 Budapest, Hungary
Nemeth, P.
[1
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Sandor, Z.
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Hungarian Acad Sci, Res Ctr Nat Sci, Inst Mat & Environm Chem, Magyar Tudosok Korutja 2, H-1117 Budapest, HungaryHungarian Acad Sci, Res Ctr Nat Sci, Inst Mat & Environm Chem, Magyar Tudosok Korutja 2, H-1117 Budapest, Hungary
Sandor, Z.
[1
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Horvath, T.
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Hungarian Acad Sci, Res Ctr Nat Sci, Inst Mat & Environm Chem, Magyar Tudosok Korutja 2, H-1117 Budapest, HungaryHungarian Acad Sci, Res Ctr Nat Sci, Inst Mat & Environm Chem, Magyar Tudosok Korutja 2, H-1117 Budapest, Hungary
Horvath, T.
[1
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Sajo, I. E.
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Univ Pecs, Szentagothai Res Ctr, Ifjusag Str 20, H-7624 Pecs, HungaryHungarian Acad Sci, Res Ctr Nat Sci, Inst Mat & Environm Chem, Magyar Tudosok Korutja 2, H-1117 Budapest, Hungary
Sajo, I. E.
[2
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Meszaros, S.
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Hungarian Acad Sci, Inst Nucl Res, Bem Ter 18-C, H-4026 Debrecen, HungaryHungarian Acad Sci, Res Ctr Nat Sci, Inst Mat & Environm Chem, Magyar Tudosok Korutja 2, H-1117 Budapest, Hungary
Meszaros, S.
[3
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Mantilla, J.
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Univ Brasilia, Inst Phys, BR-70919970 Brasilia, DF, BrazilHungarian Acad Sci, Res Ctr Nat Sci, Inst Mat & Environm Chem, Magyar Tudosok Korutja 2, H-1117 Budapest, Hungary
Mantilla, J.
[4
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Coaquira, J. A. H.
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Univ Brasilia, Inst Phys, BR-70919970 Brasilia, DF, BrazilHungarian Acad Sci, Res Ctr Nat Sci, Inst Mat & Environm Chem, Magyar Tudosok Korutja 2, H-1117 Budapest, Hungary
Coaquira, J. A. H.
[4
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Garg, V. K.
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Univ Brasilia, Inst Phys, BR-70919970 Brasilia, DF, BrazilHungarian Acad Sci, Res Ctr Nat Sci, Inst Mat & Environm Chem, Magyar Tudosok Korutja 2, H-1117 Budapest, Hungary
Garg, V. K.
[4
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Kuzmann, E.
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Eotvos Lorand Univ, Inst Chem, Pazmany Ps 1-A, H-1117 Budapest, HungaryHungarian Acad Sci, Res Ctr Nat Sci, Inst Mat & Environm Chem, Magyar Tudosok Korutja 2, H-1117 Budapest, Hungary
Kuzmann, E.
[5
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Tolnai, Gy.
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Hungarian Acad Sci, Res Ctr Nat Sci, Inst Mat & Environm Chem, Magyar Tudosok Korutja 2, H-1117 Budapest, HungaryHungarian Acad Sci, Res Ctr Nat Sci, Inst Mat & Environm Chem, Magyar Tudosok Korutja 2, H-1117 Budapest, Hungary
Tolnai, Gy.
[1
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机构:
[1] Hungarian Acad Sci, Res Ctr Nat Sci, Inst Mat & Environm Chem, Magyar Tudosok Korutja 2, H-1117 Budapest, Hungary
We report the hydrothermal synthesis and structure of FexCo1-x alloy nanoparticles with considerable stability against oxidation under ambient atmosphere. Powder X-ray diffractometry (XRD), transmission electron microscopy (TEM), energy dispersive X-ray spectroscopy (EDX), inductively coupled plasma mass spectrometry (ICP-MS), Fe-57 Mossbauer spectroscopy and magnetization measurements are applied to characterize the composition, morphology, crystal structure, atomic order and magnetic properties of the nanoparticles. As-prepared samples are composed mainly of the bcc FexCo1-x alloy phase. TEM images of heat-treated samples confirm the nanoparticle nature of the original alloys. A consistent analysis of the experimental results leads to x approximate to 53% and x approximate to 62% Fe atomic ratio respectively in two analogous alloy samples, and suggests that the atomic level structure of the nanoparticles corresponds to that of a fully disordered (A2-type) alloy phase. Exploration of the effect of cobalt on the Fe-57 hyperfine parameters of iron microenvironments suggests that in these alloys the electronic state of Fe atoms is perturbed equally and in an additive manner by atoms in their first two coordination spheres. (C) 2016 Elsevier B.V. All rights reserved.
机构:
Chungnam Natl Univ, Dept Mat Sci & Engn, Ctr NanoBioEngn & Spintron, Taejon 305764, South KoreaChungnam Natl Univ, Dept Mat Sci & Engn, Ctr NanoBioEngn & Spintron, Taejon 305764, South Korea
Abbas, Mohamed
Islam, Md. Nazrul
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Chungnam Natl Univ, Dept Mat Sci & Engn, Ctr NanoBioEngn & Spintron, Taejon 305764, South KoreaChungnam Natl Univ, Dept Mat Sci & Engn, Ctr NanoBioEngn & Spintron, Taejon 305764, South Korea
Islam, Md. Nazrul
Rao, B. Parvatheeswara
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机构:
Andhra Univ, Dept Phys, Visakhapatnam 530003, Andhra Pradesh, IndiaChungnam Natl Univ, Dept Mat Sci & Engn, Ctr NanoBioEngn & Spintron, Taejon 305764, South Korea
Rao, B. Parvatheeswara
Ogawa, Tomoyuki
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Tohoku Univ, New Ind Creat Hatchery Ctr, Sendai, Miyagi 9808579, JapanChungnam Natl Univ, Dept Mat Sci & Engn, Ctr NanoBioEngn & Spintron, Taejon 305764, South Korea
Ogawa, Tomoyuki
Takahashi, Migaku
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Chungnam Natl Univ, Dept Mat Sci & Engn, Ctr NanoBioEngn & Spintron, Taejon 305764, South Korea
Tohoku Univ, New Ind Creat Hatchery Ctr, Sendai, Miyagi 9808579, JapanChungnam Natl Univ, Dept Mat Sci & Engn, Ctr NanoBioEngn & Spintron, Taejon 305764, South Korea
Takahashi, Migaku
Kim, CheolGi
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Chungnam Natl Univ, Dept Mat Sci & Engn, Ctr NanoBioEngn & Spintron, Taejon 305764, South KoreaChungnam Natl Univ, Dept Mat Sci & Engn, Ctr NanoBioEngn & Spintron, Taejon 305764, South Korea
机构:
Univ Estado Rio Grande do Norte, Dept Fis, BR-59625620 Mossoro, RN, BrazilUniv Fed Ceara, Dept Fis, Lab Raios X, BR-60455970 Fortaleza, Ceara, Brazil
机构:
Chevron Energy Technol Co, Energy Technol Co, Integrated Lab Technol, Richmond, CA 94802 USAChevron Energy Technol Co, Energy Technol Co, Integrated Lab Technol, Richmond, CA 94802 USA
Burton, Allen W.
Ong, Kenneth
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Chevron Energy Technol Co, Energy Technol Co, Integrated Lab Technol, Richmond, CA 94802 USAChevron Energy Technol Co, Energy Technol Co, Integrated Lab Technol, Richmond, CA 94802 USA
Ong, Kenneth
Rea, Thomas
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Chevron Energy Technol Co, Energy Technol Co, Integrated Lab Technol, Richmond, CA 94802 USAChevron Energy Technol Co, Energy Technol Co, Integrated Lab Technol, Richmond, CA 94802 USA
Rea, Thomas
Chan, Ignatius Y.
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Chevron Energy Technol Co, Energy Technol Co, Integrated Lab Technol, Richmond, CA 94802 USAChevron Energy Technol Co, Energy Technol Co, Integrated Lab Technol, Richmond, CA 94802 USA
机构:
Chungnam Natl Univ, Dept Mat Sci & Engn, Ctr NanoBioEngn & Spintron, Taejon 305764, South KoreaChungnam Natl Univ, Dept Mat Sci & Engn, Ctr NanoBioEngn & Spintron, Taejon 305764, South Korea
Abbas, Mohamed
Islam, Md. Nazrul
论文数: 0引用数: 0
h-index: 0
机构:
Chungnam Natl Univ, Dept Mat Sci & Engn, Ctr NanoBioEngn & Spintron, Taejon 305764, South KoreaChungnam Natl Univ, Dept Mat Sci & Engn, Ctr NanoBioEngn & Spintron, Taejon 305764, South Korea
Islam, Md. Nazrul
Rao, B. Parvatheeswara
论文数: 0引用数: 0
h-index: 0
机构:
Andhra Univ, Dept Phys, Visakhapatnam 530003, Andhra Pradesh, IndiaChungnam Natl Univ, Dept Mat Sci & Engn, Ctr NanoBioEngn & Spintron, Taejon 305764, South Korea
Rao, B. Parvatheeswara
Ogawa, Tomoyuki
论文数: 0引用数: 0
h-index: 0
机构:
Tohoku Univ, New Ind Creat Hatchery Ctr, Sendai, Miyagi 9808579, JapanChungnam Natl Univ, Dept Mat Sci & Engn, Ctr NanoBioEngn & Spintron, Taejon 305764, South Korea
Ogawa, Tomoyuki
Takahashi, Migaku
论文数: 0引用数: 0
h-index: 0
机构:
Chungnam Natl Univ, Dept Mat Sci & Engn, Ctr NanoBioEngn & Spintron, Taejon 305764, South Korea
Tohoku Univ, New Ind Creat Hatchery Ctr, Sendai, Miyagi 9808579, JapanChungnam Natl Univ, Dept Mat Sci & Engn, Ctr NanoBioEngn & Spintron, Taejon 305764, South Korea
Takahashi, Migaku
Kim, CheolGi
论文数: 0引用数: 0
h-index: 0
机构:
Chungnam Natl Univ, Dept Mat Sci & Engn, Ctr NanoBioEngn & Spintron, Taejon 305764, South KoreaChungnam Natl Univ, Dept Mat Sci & Engn, Ctr NanoBioEngn & Spintron, Taejon 305764, South Korea
机构:
Univ Estado Rio Grande do Norte, Dept Fis, BR-59625620 Mossoro, RN, BrazilUniv Fed Ceara, Dept Fis, Lab Raios X, BR-60455970 Fortaleza, Ceara, Brazil
机构:
Chevron Energy Technol Co, Energy Technol Co, Integrated Lab Technol, Richmond, CA 94802 USAChevron Energy Technol Co, Energy Technol Co, Integrated Lab Technol, Richmond, CA 94802 USA
Burton, Allen W.
Ong, Kenneth
论文数: 0引用数: 0
h-index: 0
机构:
Chevron Energy Technol Co, Energy Technol Co, Integrated Lab Technol, Richmond, CA 94802 USAChevron Energy Technol Co, Energy Technol Co, Integrated Lab Technol, Richmond, CA 94802 USA
Ong, Kenneth
Rea, Thomas
论文数: 0引用数: 0
h-index: 0
机构:
Chevron Energy Technol Co, Energy Technol Co, Integrated Lab Technol, Richmond, CA 94802 USAChevron Energy Technol Co, Energy Technol Co, Integrated Lab Technol, Richmond, CA 94802 USA
Rea, Thomas
Chan, Ignatius Y.
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h-index: 0
机构:
Chevron Energy Technol Co, Energy Technol Co, Integrated Lab Technol, Richmond, CA 94802 USAChevron Energy Technol Co, Energy Technol Co, Integrated Lab Technol, Richmond, CA 94802 USA