ar X iv : c on d - m at / 0 21 06 09 v 2 2 1 Ja n 20 03 Structural , electric and magnetic properties of the electron - doped manganese oxide : La

ar X iv : c on d - m at / 0 21 06 09 28 O ct 2 00 2 Structural , electric and magnetic properties of the electron - doped manganese oxide

In this letter, the electrical and magnetic properties of La 1-x Te x MnO 3 (x=0.1, 0.15), which is a new material and shows good colossal magnetoresistance (CMR) behavior, have been investigated. These compounds have rhombohedral structure. In this materical, Te replaced a part of La ions, which induced the lattice cell constriction and Mn-O-Mn bond angle widening. X-ray photoemission spectros...

ar X iv : m at h - ph / 0 20 10 06 v 2 1 5 Ja n 20 02 Quasi - classical versus non - classical spectral asymptotics for magnetic Schrödinger operators with decreasing electric potentials

We consider the Schrödinger operator H on L 2 (R 2) or L 2 (R 3) with constant magnetic field, and electric potential V which typically decays at infinity exponentially fast or has a compact support. We investigate the asymptotic behaviour of the discrete spectrum of H near the boundary points of its essential spectrum. If the decay of V is Gaussian or faster, this behaviour is non-classical in...

ar X iv : 0 90 1 . 18 06 v 1 [ m at h . A G ] 1 3 Ja n 20 09 GREENBERG APPROXIMATION AND THE GEOMETRY OF ARC SPACES

We study the differential properties of generalized arc schemes and geometric versions of Kolchin’s Irreducibility Theorem over arbitrary base fields. As an intermediate step, we prove an approximation result for arcs by algebraic curves.

X iv : h ep - t h / 00 06 09 7 v 1 1 4 Ju n 20 00 Interaction of electric charges in ( 2 + 1 ) D magnetic dipole gas

ar X iv : h ep - e x / 06 01 02 0 v 1 1 3 Ja n 20 06 ISR PHYSICS AT BABAR

We present a review of BaBar results on e+e-annihilations into exclusive hadronic final states using the initial state radiation technique. Cross sections over the √ s range from threshold to 4.5 GeV, with very small point-to-point systematic errors, are presented for the 3π, 2(π + π −), 3(π + π −), 2(π + π −)2π 0 , K + K − π + π − , 2(K + K −) and p¯ p final states. The proton form factor and ...