Magnetic CrX and MnX (X = Si, Ge, and As) nanowires: Stability enhancement and linearization
IR@NPL: CSIR-National Physical Laboratory, New Delhi
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| Title |
Magnetic CrX and MnX (X = Si, Ge, and As) nanowires: Stability enhancement and linearization
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| Creator |
Bala, Anu
Singh, Poorva Nautiyal, Tashi Auluck, Sushil |
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| Subject |
Physical Chemistry
Materials Science Metallurgy & Metallurgical Engineering |
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| Description |
This work on elemental and binary nanowires of Cr and Mn, exploring their non-magnetic, ferromagnetic and anti-ferromagnetic states, shows that alloying increases the stability of binary linear chains in comparison to their elemental counterpart. In addition, it also favors not only the linearization of CrAs and MnAs nanowires but also a better magnetic stability for binary linear chains, in general. Furthermore, it is encouraging to note that, besides being more stable, the alloy nanowires are also endowed with a large magnetic moment. Also, the binary nanowires show more feasibility towards tailoring of magnetic state with stretching, in comparison to elemental nanowires. We note that the cohesive energy of studied nanowires is effectively dictated by the X atoms (X = Si, Ge, and As) whereas their magnetic properties are decided by the magnetic M atoms (M = Cr and Mn). Density of states conveys that hybridization of d-states of M atoms and p-states of X atoms plays an important role in higher stability of binary nanowires. The band structure indicates tuning of optical properties of nanowires, while linear chains of MnAs seem suitable for spintronics.
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| Publisher |
Elsevier
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| Date |
2013-01-15
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| Type |
Article
PeerReviewed |
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| Format |
application/pdf
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| Identifier |
http://npl.csircentral.net/3139/1/Magnetic%20CrX%20and%20MnX.pdf
Bala, Anu and Singh, Poorva and Nautiyal, Tashi and Auluck, Sushil (2013) Magnetic CrX and MnX (X = Si, Ge, and As) nanowires: Stability enhancement and linearization. Journal of Alloys and Compounds, 547. pp. 138-146. ISSN 0925-8388 |
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| Relation |
http://npl.csircentral.net/3139/
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