@article{Physics.3.62, title = {Berry's phase and quantization in topological insulators}, author = {Hasan, M. Zahid}, journal = {Physics}, volume = {3}, issue = {}, pages = {62}, numpages = {1}, year = {2010}, month = {Jul}, doi = {10.1103/Physics.3.62}, url = {http://link.aps.org/doi/10.1103/Physics.3.62}, publisher = {American Physical Society} }