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28 papers · 1 filter
Multipliers and dual operator algebras
David P. Blecher
In a previous paper we showed how the main theorems characterizing operator algebras and operator modules, fit neatly into the framework of the `noncommutative Shilov boundary', an…
Evidence for novel polaronic Fermi-liquid in doped oxides
A. S. Alexandrov, Guo-meng Zhao, H. Keller +3
The modern multi-polaron theory predicts a polaronic Fermi-liquid state, but such a state has not been unambigously confirmed by experiment so far. Here we report theoretical and e…
Colossal Magnetoresistance using the Small Polaron Picture with Finite Bandwidth Effects
Sudhakar Yarlagadda
We present a small polaron picture and show that finite bandwidth effects are important to understand colossal magnetoresistance. Besides the polaron size parameter, we show that t…
Mean-Field Approach to Charge, Orbital, and Spin Ordering in Manganites
Sudhakar Yarlagadda, C. S. Ting
We present a mean-field theory of charge, orbital, and spin ordering in manganites at 50% and 0% dopings by considering Jahn-Teller interaction, nearest-neighbor repulsion, and no…
Event-by-event fluctuations of the kaon to pion ratio in central Pb+Pb collisions at 158 GeV per Nucleon
Afanasiev, NA49 collaboration
We present the first measurement of fluctuations from event to event in the production of strange particles in collisions of heavy nuclei. The ratio of charged kaons to charged pio…
Low-frequency method for magnetothermopower and Nernst effect measurements on single crystal samples at low temperatures and high magnetic fields
E. S. Choi, J. S. Brooks, J. S. Qualls +1
We describe an AC method for the measurement of the longitudinal (Sxx) and transverse (Sxy, i.e. Nernst) thermopower of mm-size single crystal samples at low temperatures (T<1 K) a…