[1] Chennai Math Sci Inst, Madras, Tamil Nadu, India
[2] Sandia Natl Labs, Albuquerque, NM 87185 USA
[3] Mesa Inst Nanotechnol, Enschede, Netherlands
[4] New Jersey Inst Technol, Newark, NJ 07102 USA
[5] Indian Inst Sci, Jawaharlal Nehru Ctr Adv Sci Res, Bangalore 560012, Karnataka, India
[6] Univ Calif Santa Barbara, Dept Mat, Santa Barbara, CA 93106 USA
[7] Univ New Mexico, Anderson Sch Management, Albuquerque, NM 87131 USA