Institution: | 1. A.F. Ioffe Physical–Technical Institute RAS, St. Politekhnicheskaya 26, St Petersburg, 194021, Russia;2. Lobachevsky State University, Av. Gagarina 23, Nizhniy Novgorod, 603021, Russia;3. CINVESTAV-IPN, Av. Instituto Politécnico Nacional 2508, 07360 Mexico D.F., Mexico |