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cond-mat.mtrl-sci2006
Distribution of Electron Charge Centres: A Picture of Bonding Based on Geometric Phases
Joydeep Bhattacharjee, Shobhana Narasimhan, Umesh V Waghmare
In the past two decades, geometric phases have provided a powerful new way of looking at quantum mechanical systems, manifesting themselves in subtle but observable ways. Here, we…
cond-mat.mtrl-sci2006
Ferroics: magnetic-compass lattice and optical phonon dispersions of dipolar crystals
Takeshi Nishimatsu, Umesh V. Waghmare, Yoshiyuki Kawazoe +3
We report a simple safe and attractive pedagogic demonstration with magnetic compasses that facilitates an intuitive understanding of the concept that ferromagnetism and ferroelect…