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Magnetic Properties of Vanadium Oxide Nanotubes, Nanourchins, and Nanorods.

Published online by Cambridge University Press:  26 February 2011

Chris Jacobs ,
Megan Roppolo ,
Kristin Butterworth ,
Chunmei Ban ,
Natasha A. Chernova  and
M. Stanley Whittingham
Chris Jacobs
Affiliation:
[email protected], State University of New York at Binghamton, Institute for Materials Research, Binghamton, NY, 13902-6000, United States
Megan Roppolo
Affiliation:
[email protected], State University of New York at Binghamton, Institute for Materials Research, Binghamton, NY, 13902-6000, United States
Kristin Butterworth
Affiliation:
[email protected], SUNY Binghamton, Institute for Materials Research, Vestal Parkway East, Binghamton, NY, 13850, United States
Chunmei Ban
Affiliation:
[email protected], State University of New York at Binghamton, Institute for Materials Research, Binghamton, NY, 13902-6000, United States
Natasha A. Chernova
Affiliation:
[email protected], State University of New York at Binghamton, Institute for Materials Research, Binghamton, NY, 13902-6000, United States
M. Stanley Whittingham
Affiliation:
[email protected], State University of New York at Binghamton, Institute for Materials Research, Binghamton, NY, 13902-6000, United States
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Abstract

A better understanding of magnetic interactions, charge distribution, and redox properties of vanadium oxide nanotubes (VONTs) is necessary for accurate structure and mechanism of formation determination. Magnetic properties have been determined for pristine and lithiated VONTs and for the VONTs arranged in nanourchin morphology. Presence of paramagnetic V4+ ions and V4+ ions coupled in magnetic dimers is found, and their amounts are estimated. Both lithiation and change of morphology to nanourchin destroy the spin-gap behavior, which indicate changes in charge distribution. No ferromagnetic response is observed in lithiated VONTs. Magnetic properties of vanadium oxide nanorods with δ-V4O10 structure are also characterized.

Keywords

magnetic propertiesnanoscalelayered
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 988: Symposium QQ – Solid-State Chemistry of Inorganic Materials VI , 2006 , 0988-QQ03-19
Copyright
Copyright © Materials Research Society 2007

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