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Macroscopic Transport of Mega-ampere Electron Currents in Aligned Carbon-Nanotube Arrays

Chatterjee, Gourab and Singh, Prashant Kumar and Ahmed, Saima and Robinson, APL and Lad, AmitD and Mondal, Sudipta and Narayanan, V and Srivastava, Iti and Koratkar, Nikhil and Pasley, John and Sood, AK and Kumar, RavindraG (2012) Macroscopic Transport of Mega-ampere Electron Currents in Aligned Carbon-Nanotube Arrays. In: PHYSICAL REVIEW LETTERS, 108 (23).

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Official URL: http://dx.doi.org/10.1103/PhysRevLett.108.235005


We demonstrate that aligned carbon-nanotube arrays are efficient transporters of laser-generated megaampere electron currents over distances as large as a millimeter. A direct polarimetric measurement of the temporal and the spatial evolution of the megagauss magnetic fields (as high as 120 MG) at the target rear at an intensity of (10(18)-10(19)) W/cm(2) was corroborated by the rear-side hot electron spectra. Simulations show that such high magnetic flux densities can only be generated by a very well collimated fast electron bunch.

Item Type: Journal Article
Additional Information: Copyright for this article belongs to American Physical Society
Department/Centre: Division of Physical & Mathematical Sciences > Physics
Date Deposited: 07 Jul 2012 08:16
Last Modified: 07 Jul 2012 08:18
URI: http://eprints.iisc.ac.in/id/eprint/44758

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