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Price: 683.00 RUB
Properties of Two-Dimensional Excitations in Quantizing Magnetic Fields By Alexander Sergeevich Zhuravlev
This monograph presents original experimental research on neutral excitations in quasi-two-dimensional electron gases. Using a broad range of optical techniques—including inelastic light scattering, Rayleigh scattering, time-resolved Kerr rotation, resonant reflection, and photoluminescence—the author provides a comprehensive analysis of intersubband neutral excitations of charge, spin, and charge-spin density in single and double quantum wells. The study examines interactions between plasma excitations (electronic system) and phonon excitations (atomic lattice of the quantum well), leading to hybrid plasmon-phonon modes.
A classification of intrasubband neutral excitations is given, with special attention to excitations in external quantizing magnetic fields. Time-resolved optical methods reveal the relaxation dynamics of nonequilibrium excitation ensembles, including spin-wave and Goldstone excitons in a Hall ferromagnet at filling factor ν = 1, and spin-cyclotron excitons in a Hall insulator at ν = 2. The latter exhibit record-long lifetimes, enabling observation of a transition to a new collective state—the magnetofermionic condensate—at temperatures below 1 K. The properties of this condensate are explained by the formation of a dense ensemble of long-lived bosonic excitations within the equilibrium two-dimensional electron system.
Price: 683.00 RUR
