title: Signature of helimagnetic ordering in single-crystal MnSi nanowires.
abstract: We report the synthesis, structural characterization, and magnetotransport of single-crystalline nanowires of manganese monosilicide, MnSi. Bulk MnSi has unusual magnetic orderings, helimagnetism, and skyrmions at ambient pressure, and high pressure studies have revealed partial magnetic ordering and non-Fermi liquid behavior. MnSi nanowires were synthesized using chemical vapor deposition of MnCl(2) onto silicon substrates. The morphology, structure, and composition of these nanowires were analyzed using electron microscopy and X-ray spectroscopy. The low-temperature magnetoresistance characteristics of MnSi nanowires reveal the first signature of helimagnetism in one-dimensional nanomaterials.
authors.affiliation: Department of Chemistry, University of Wisconsin - Madison, Madison, Wisconsin 53706, USA.
authors.forename: Jeremy M
authors.initials: JM
authors.lastname: Higgins
authors.forename: Ruihua
authors.initials: R
authors.lastname: Ding
authors.forename: John P
authors.initials: JP
authors.lastname: DeGrave
authors.forename: Song
authors.initials: S
authors.lastname: Jin
mesh_terms: D003460:Crystallization / Q000379:methods*; D004574:Electromagnetic Fields; D046911:Macromolecular Substances / Q000737:chemistry; D008280:Magnetics; D008345:Manganese / Q000737:chemistry*; D008422:Materials Testing; D008968:Molecular Conformation; D049329:Nanostructures / Q000737:chemistry* / Q000648:ultrastructure*; D036103:Nanotechnology / Q000379:methods*; D010316:Particle Size; D017655:Silicon Compounds / Q000737:chemistry*; D013499:Surface Properties
chemical_list: D046911:Macromolecular Substances; D017655:Silicon Compounds; C539637:manganese silicide; D008345:Manganese