Published in:

Physical Review Letters 105,24 (2010)

Abstract

We report the observation of a new fractional quantum Hall state in the second Landau level of a two-dimensional electron gas at the Landau level filling factor nu = 2 + 6/13. We find that the model of noninteracting composite fermions can explain the magnitude of gaps of the prominent 2 + 1/3 and 2 + 2/3 states. The same model fails, however, to account for the gaps of the 2 + 2/5 and the newly observed 2 + 6/13 states suggesting that these two states are of exotic origin.

Date of this Version

December 2010

 
 

To view the content in your browser, please download Adobe Reader or, alternately,
you may Download the file to your hard drive.

NOTE: The latest versions of Adobe Reader do not support viewing PDF files within Firefox on Mac OS and if you are using a modern (Intel) Mac, there is no official plugin for viewing PDF files within the browser window.