E. B. Sonin. (2011)cite arxiv:1107.3378 Comment: 11 pages, 5 figures, submitted to Proceedings of the SPIE Spintronics IV conference 21-25 August 2011, San Diego, USA, minor corrections of the previous version.
E. B. Sonin. (2011)cite arxiv:1107.3378 Comment: 11 pages, 5 figures, submitted to Proceedings of the SPIE Spintronics IV conference 21-25 August 2011, San Diego, USA, minor corrections of the previous version.