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cond-mat.stat-mech2004
Vibrational resonance in narrow-band conductors
G. M. Shmelev, E. M. Epshtein, A. S. Matveev
The response is studied of a narrow-band conductor with bcc lattice to a low-frequency signal under presence of a high-frequency signal. In a high enough dc electric field Ex, the…
cond-mat.mes-hall2004
On the second harmonic generation in superlattices
G. M. Shmelev, E. N. Valgutskova, E. M. Epshtein
In present work, we investigate the second harmonic generation in a superlattice under presence of the carrier density gradient. We show that the second harmonic intensity can be c…