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108 papers · 1 filter
Phonons and specific heat of linear dense phases of atoms physisorbed in the grooves of carbon nanotube bundles
Antonio Siber
The vibrational properties (phonons) of a one-dimensional periodic phase of atoms physisorbed in the external groove of the carbon nanotube bundle are studied. Analytical expressio…
Temperature Dependent Magnetic Anisotropy in (Ga,Ma)As Layers
M. Sawicki, F. Matsukura, A. Idziaszek +6
It is demonstrated by SQUID magnetization measurements that (Ga,Mn)As films can exhibit rich characteristics of magnetic anisotropy depending not only to the epitaxial strain but b…
Effect of annealing on carrier density and Curie temperature in epitaxial (Ga,Mn)As thin films
B. Sorensen, J. Sadowski, R. Mathieu +2
We report a clear correspondence between changes in the Curie temperature and carrier density upon annealing in epitaxially grown (Ga,Mn)As layers with thicknesses in the range bet…
Two-dimensional electron gas in a periodic potential and external magnetic field: states of pairs and three-particle systems
Wojciech Florek
The group-theoretical classification of states of identical particle pairs is presented. Then obtained states are coupled with those of an antiparticle to construct states of a thr…
Under-doped La2-xSrxCuO4 with x = 0.063 - 0.125: TSFZ growth of high-quality crystals and anomalous doping dependences of superconducting properties
F Zhou, W X Ti, J W Xiong +4
A series of high-quality La2-xSrxCuO4 (LSCO) superconductor crystals in the under-doping region with x = 0.063, 0.07, 0.09, 0.10, 0.111 and 0.125 has been successfully prepared by…
Correlated two-electron transport: a principle for a novel charge pump
Qing-feng Sun, Hong Guo, Jian Wang
By considering a correlated two-electron transport process (TET) and using a diagrammatic analysis within the Keldysh nonequilibrium Green's function formalism, we discuss a novel…