nLab topological crystalline insulator

Contents

Context

Topological physics

Topological Physics – Phenomena in physics controlled by the topology (often: the homotopy theory) of the physical system.

General theory:

Contents

Idea

In solid state physics, a topological crystalline insulator is a crystalline quantum material in a topological phase of matter like a topological insulator, which as such is “protected” by (possibly time-reversal symmetry and) a crystallographic point group-symmetry of the underlying crystal.

This means that a topological crystalline insulator phase observed in the bulk of some crystal whose dynamics (or rather that of its electrons) respects a given point group may disappear for instance at boundary regions where the dynamics breaks this symmetry.

References

Experimental realization

• Y. Tanaka, Zhi Ren, T. Sato, K. Nakayama, S. Souma, T. Takahashi, Kouji Segawa, Yoichi Ando, Experimental realization of a topological crystalline insulator in SnTe, Nature Physics 8 (2012) 800–803 $[$doi:10.1038/nphys2442$]$

• M. Zahid Hasan et al., Observation of a topological crystalline insulator phase and topological phase transition in Pb1−xSnxTe, Nature Communications 3 1192 (2012) $[$doi:10.1038/ncomms2191$]$

• Timothy H Hsieh, Hsin Lin, Junwei Liu, Wenhui Duan, Arun Bansil, Liang Fu, Topological crystalline insulators in the SnTe material class, Nature Communications 3 (2012) 982 $[$doi:10.1038/ncomms1969$]$

• M. Zahid Hasan et al., Observation of Dirac Node Formation and Mass Acquisition in a Topological Crystalline Insulator, Science 341 1496 (2013) $[$doi:10.1126/science.1239451$]$

• M. Zahid Hasan et al., Mapping the unconventional orbital texture in topological crystalline insulators, Nature Physics 10 (2014) 572–577 $[$doi:10.1038/nphys3012$]$

• Wenhui Fan, Simin Nie, Cuixiang Wang, Binbin Fu, Changjiang Yi, Shunye Gao, Zhicheng Rao, Dayu Yan, Junzhang Ma, Ming Shi, Yaobo Huang, Youguo Shi, Zhijun Wang, Tian Qian, Hong Ding,

Discovery of Ĉ2 rotation anomaly in topological crystalline insulator SrPb, Nature Communications 12 2052 (2021) $[$doi:10.1038/s41467-021-22350-6$]$

Last revised on May 25, 2022 at 10:17:43. See the history of this page for a list of all contributions to it.