Quantum spin dynamics

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Pauli spin blockade in carbon nanotube double quantum dots

(2008)

Authors:

MR Buitelaar, J Fransson, AL Cantone, CG Smith, D Anderson, GAC Jones, A Ardavan, AN Khlobystov, AAR Watt, K Porfyrakis, GAD Briggs
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Morphology of the nonspherically decaying radiation generated by a rotating superluminal source: reply to comment

(2008)

Authors:

Houshang Ardavan, Arzhang Ardavan, John Singleton, Joseph Fasel, Andrea Schmidt
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Response to "Comment on `Method of handling the divergences in the radiation theory of sources that move faster than their own waves'" [J. Math. Phys. 40, 4331 (1999)]

(2008)

Authors:

Houshang Ardavan, Arzhang Ardavan, John Singleton, Joseph Fasel, Andrea Schmidt
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Mechanism of generation of the emission bands in the dynamic spectrum of the Crab pulsar

(2008)

Authors:

H Ardavan, A Ardavan, J Singleton, M Perez
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Dynamics of paramagnetic metallofullerenes in carbon nanotube peapods.

Nano Lett 8:4 (2008) 1005-1010

Authors:

Jamie H Warner, Andrew AR Watt, Ling Ge, Kyriakos Porfyrakis, Takao Akachi, Haruya Okimoto, Yasuhiro Ito, Arzhang Ardavan, Barbara Montanari, John H Jefferson, Nicholas M Harrison, Hisanori Shinohara, G Andrew D Briggs

Abstract:

We filled SWNTs with the paramagnetic fullerene Sc@C82 to form peapods. The interfullerene 1D packing distance measured using TEM is d = 1.1 +/- 0.02 nm. The Sc@C82 in SWNT peapods continuously rotated during the 2 s TEM exposure time, and we did not see the Sc atoms. However, Sc@C82 metallofullerenes in MWNT peapods have periods of fixed orientation, indicated by the brief observation of Sc atoms. La@C82 peapods were also prepared and their rotational behavior examined. The interfullerene 1D packing of both La@C82 and Sc@C82 peapods is identical and thus independent of the charge transfer state for these paramagnetic fullerenes. The La@C82 metallofullerenes in the peapods have fixed orientations for extended periods of time, up to 50 s in some cases. The La@C82 spontaneously rotates rapidly between fixed orientations.
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