Abstract An unconventional integer quantum Hall regime was found in magnetic semiconductor-superconductor hybrids. By making use of the decomposition of the gauge potential on a U(1) principal fibre bundle over k-space, we study the topological structure of the integral Hall conductance. It is labeled by the Hopf index β and the Brouwer degree $\eta$. The Hall conductance topological current and its evolution is discussed.
Received: 16 September 2008
Revised: 18 December 2008
Accepted manuscript online:
Fund: Project supported by the National Natural Science
Foundation of China (Grant No 10275030).
Cite this article:
Ren Ji-Rong(任继荣) and Zhu Hui(朱辉) The topological structure of the integral quantum Hall effect in magnetic semiconductor-superconductor hybrids 2009 Chin. Phys. B 18 2535
Altmetric calculates a score based on the online attention an article receives. Each coloured thread in the circle represents a different type of online attention. The number in the centre is the Altmetric score. Social media and mainstream news media are the main sources that calculate the score. Reference managers such as Mendeley are also tracked but do not contribute to the score. Older articles often score higher because they have had more time to get noticed. To account for this, Altmetric has included the context data for other articles of a similar age.
