Estimation of magnetic susceptibility anisotropy of carbon nanotubes using magnetophotoluminescence

Sasa Zaric, Gordana N. Ostojic, Junichiro Kono, Jonah Shaver, Valerie C. Moore, Robert H. Hauge, Richard E. Smalley, Xing Wei

Research output: Contribution to journalArticlepeer-review

80 Scopus citations

Abstract

We have carried out a magnetophotoluminescence excitation spectroscopy study on micelle-suspended single-walled carbon nanotubes in high magnetic fields. By analyzing field-dependent spectral changes, we determined the degree of magnetic alignment of the observed semiconducting nanotubes at 45 T. This, together with an independently measured length distribution of the nanotubes, allowed us to estimate the magnitude of the magnetic susceptibility anisotropy, X∥ - ⊥ to be ∼1.4 × 10 -5 emu/mol for 1-nm-diameter semiconducting nanotubes.

Original languageEnglish (US)
Pages (from-to)2219-2221
Number of pages3
JournalNano letters
Volume4
Issue number11
DOIs
StatePublished - Nov 1 2004

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