Two dimensional electron system

The Peierls transition and the giant Kohn anomaly are driven by the divergence of the polarization function x( ) for q = 2kp. Conditions for the divergence are understood intuitively in terms of the nesting of the Fermi surface Figure 20 shows the three dimensional representation of the Fermi surfaces of one- and two-dimensional electron systems. The divergence of xiq) at T = 0 is considered to be ascribed to the condition, - E = 0 stnd f E -f (E + q) 0. It is... 

STUDY OF TRANSPORT AND DEVICES BASED ON THE PHOTO-EXCITED TWO-DIMENSIONAL ELECTRONIC SYSTEM... 

A high mobility two-dimensional electron system exhibits large changes in the resistance, and zero-resistance states, under microwave and Terahertz excitation. We describe associated experimental results and the possibility of using this system as a radiation detector. 

S. Mikhailov, Microwave-induced magnetoransport phenomena in two-dimensional electron system Importance of electrodynamic effects, Phys. Rev. B 70, 165311 (2004). 

V. I. Ryzhii, Microwave photoconductivity in two-dimensional electron systems due to photon assisted interaction of electrons with leaky interface phonons, Phys. Rev. B 68, 193402 (2003) V. Ryzhii et al.. Absolute negative conductivity in two-dimensional electron systems associated with acoustic scattering stimulated by microwave radiation, Phys. Rev. B 68, 165406 (2003). 

Study of Transport and Devices Based on the Photo-Excited Two-Dimensional Electronic System... 

Takeya, J. et ah. Field-induced charge transport at the surface of pentacene single crystals A method to study charge dynamics of two-dimensional electron systems in organic crystals, J. Appl. Phys., 94, 5800, 2003. 

Electrons were found to become localized on the surface of solid hydrogen (Troyanovskii and Khaikin, 1981). As in the case of electrons on a liquid helium surface, the electrons absorb electromagnetic radiation in the GHz range (Edelman and Faley, 1983). Also on the surface of sNe a two-dimensional electron system was observed (Kajita, 1984). 

Kajita, K., A new two-dimensional electron system on the surface of solid neon. Surface Sci., 142, 86, 1984. 

Goswami, S., Siegert, C., Baenninger, M., Pepper, M., Farter, I., Ritchie, D. A., Ghosh, A. (2009). Highly enhanced thermopower in two-dimensional electron systems at milhkelvin temperatures. Physical Review Letters, 103, 026602. 

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