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Seo, Kwanyong
The SEO Group
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  • Flexible solar cell, transparent solar cell, PV-battery hybrid system, hetero-junction solar cell

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Itinerant Helimagnetic Single-Crystalline MnSi Nanowires

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Title
Itinerant Helimagnetic Single-Crystalline MnSi Nanowires
Other Titles
Itinerant Helimagnetic Single-Crystalline MnSi Nanowires
Author
Seo, KwanyongYoon, HanaRyu, Seong-WanLee, SunghunJo, YounghunJung, Myung-HwaKim, JinheeChoi, Yang-KyuKim, Bongsoo
Keywords
ONE-DIMENSIONAL NANOSTRUCTURES; HIGHER MANGANESE SILICIDE; MAGNETIC-PROPERTIES; COSI NANOWIRES; GROWTH; PHASE; METAL; FERROMAGNETS; MN4SI7; OXIDES
Issue Date
2010-05
Publisher
AMER CHEMICAL SOC
Citation
ACS NANO, v.4, no.5, pp.2569 - 2576
Abstract
We report the synthesis of free-standing MnSi nanowires via a vapor transport method with no catalyst and measurements of their electrical and magnetic properties for the first time. The single-crystalline MnSi nanowire ensemble with a simple cubic (B20) crystal structure shows itinerant helimagnetic properties with a T-c of about 30 K. A single MnSi nanowire device was fabricated by a new method using photolithography and a nanomanipulator that produces good ohmic contacts. The single-nanowire device measurements provide large (20%) negative magnetoresistance and very low electrical resistivity of 544 mu Omega cm for the MnSi nanowire
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DOI
10.1021/nn901653q
ISSN
1936-0851
Appears in Collections:
ECHE_Journal Papers
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