Engineering the magnetic properties of Ge1-x Mnx nanowires

Kazakova, O., Kulkarni, J.S., Arnold, Donna C., Holmes, J.D. (2007) Engineering the magnetic properties of Ge1-x Mnx nanowires. Journal of Applied Physics, 101 (9). ISSN 0021-8979. (doi:10.1063/1.2694052) (The full text of this publication is not currently available from this repository. You may be able to access a copy if URLs are provided) (KAR id:49068)

The full text of this publication is not currently available from this repository. You may be able to access a copy if URLs are provided.
Official URL: http://dx.doi.org/10.1063/1.2694052

Abstract

Possible origins of room-temperature ferromagnetism in GeMn nanowires (NWs) are investigated. Arrays of Ge1-x Mnx NWs and Ge Ge1-x Mnx nanocables (NCs) (x=1%-5%) have been synthesized within the pores of anodized alumina oxide (AAO) membranes. The influence of annealing on the magnetic properties of Ge1-x Mnx NWs is studied. The room-temperature ferromagnetism is preserved after the postfabrication annealing in inert atmosphere (Tann =750 Â°C) demonstrating overall compatibility of Ge1-x Mnx NWs with conventional complementary metal-oxide semiconductor technology. The role of oxygen in high- TC ferromagnetic ordering is investigated in double-phased NCs with a Ge sheath. Despite a barrier to oxygen migration from the AAO membrane, samples still display room-temperature ferromagnetism, hence, ruling out any significant role of oxygen in the explanation of the high TC in the system. The magnetic properties of the one-dimensional Ge1-x Mnx nanostructures can be understood by considering interface related phenomena.

Item Type:	Article
DOI/Identification number:	10.1063/1.2694052
Additional information:	Unmapped bibliographic data: C7 - 09H108 [EPrints field already has value set] LA - English [Field not mapped to EPrints] J2 - J Appl Phys [Field not mapped to EPrints] AD - NPL, Hampton Road, Teddington, Middlesex TW11 OLW, United Kingdom [Field not mapped to EPrints] AD - Department of Chemistry, UCC, Cork, Ireland [Field not mapped to EPrints] DB - Scopus [Field not mapped to EPrints]
Uncontrolled keywords:	Annealing, CMOS integrated circuits, Energy barriers, Ferromagnetism, Germanium compounds, Anodized alumina oxide (AAO), Inert atmosphere, Oxygen migration, Nanowires
Subjects:	Q Science > QC Physics > QC176.8.N35 Nanoscience, nanotechnology
Divisions:	Divisions > Division of Natural Sciences > Physics and Astronomy
Depositing User:	Giles Tarver
Date Deposited:	07 Jul 2015 10:40 UTC
Last Modified:	05 Nov 2024 10:33 UTC
Resource URI:	https://kar.kent.ac.uk/id/eprint/49068 (The current URI for this page, for reference purposes)

University of Kent Author Information

Arnold, Donna C..

Creator's ORCID:	https://orcid.org/0000-0003-0239-5790
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