In solids, the condensation of electron and hole pairs with finite momentum leads to an ordered state known as a charge density wave, in which the charge has spatial modulation. However, lattice symmetry breaking and the accompanying relocation of the ions, which changes the charge distribution, ...
1965;Johnson et al., 1966). This laser needed to be cooled with liquid nitrogen. Room temperature, lamp pumped, pulsed operation of Ho:YAG and Ho:YLF lasers was demonstrated in
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Some of these values are in good agreement with the theoretical work, for example, the critical thickness has been calculated to be 3-unit cells for PTO (ref. 11) and 6-unit cells for BTO (ref. 12), while other calculations suggested that the ferroelectricity might even exist in a ...
But those times have their echoes still with us, the passions and aspirations, hatreds and follies people acted upon then wearing different labels and uniforms in later times. Two men we would hear much of later were advancing their careers, both briefly hired by their governments to spy on ...
The lack of transversal skills, such as working well in teams and successful time management, can represent an important handicap in their careers, and the resulting limitations can significantly impair their capability to undertake the roles that the work market expects from them. Less emphasis is...