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6 papers · 2 filters
Comment on "Interaction Effects in Conductivity of Si Inversion Layers at Intermediate Temperatures"
A. A. Shashkin, V. T. Dolgopolov, S. V. Kravchenko
We show that the comparison between theory and experiment, performed by Pudalov et al. in PRL 91, 126403 (2003), is not valid.
Metal-insulator transition in two-dimensional electron systems
S. V. Kravchenko, M. P. Sarachik
The interplay between strong Coulomb interactions and randomness has been a long-standing problem in condensed matter physics. According to the scaling theory of localization, in t…
Magnetic Field Melting of the Charge-Ordered State of La0.5Ca0.5MnO3: A Local Structure Perspective
T. A. Tyson, M. Deleon, M. Crof +4
The local structure about the Mn site in the half doped system La0.5Ca0.5MnO3 was measured in magnetic fields up 10 T to probe the melting of the charge ordered state. Examination…
Compton scattering beyond the impulse approximation
I. G. Kaplan, B. Barbiellini, A. Bansil
We treat the non-relativistic Compton scattering process in which an incoming photon scatters from an N-electron many-body state to yield an outgoing photon and a recoil electron,…
Sharply increasing effective mass: a precursor of the spontaneous spin polarization in a dilute two-dimensional electron system
A. A. Shashkin, S. V. Kravchenko, V. T. Dolgopolov +1
We have measured the effective mass, m, and Lande g-factor in very dilute two-dimensional electron systems in silicon. Two independent methods have been used: (i) measurements of t…
Spin-independent origin of the strongly enhanced effective mass in a dilute 2D electron system
A. A. Shashkin, Maryam Rahimi, S. Anissimova +3
We have accurately measured the effective mass in a dilute two-dimensional electron system in silicon by analyzing temperature dependence of the Shubnikov-de Haas oscillations in t…