B. Stolan, E. Pytte, et al.
Physical Review B
We show that near the Gunn instability in semiconductors the plasma frequency is purely imaginary and goes to zero at the critical field. © 1968 The American Physical Society.
B. Stolan, E. Pytte, et al.
Physical Review B
Th. Von Waldkirch, K.A. Müller, et al.
Physical Review Letters
E. Pytte, K.W.H. Stevens
Physical Review Letters
H. Rohrer, H. Thomas
Journal of Applied Physics