Physics – Condensed Matter – Mesoscale and Nanoscale Physics
Scientific paper
2009-09-30
Physics
Condensed Matter
Mesoscale and Nanoscale Physics
6 Figures, 10 Pages, RevTex Format, Detailed version of Hsieh et.al., SCIENCE 323, 919 (2009)
Scientific paper
A topologically ordered material is characterized by a rare quantum organization of electrons that evades the conventional spontaneously broken symmetry based classification of condensed matter. Exotic spin transport phenomena such as the dissipationless quantum spin Hall effect have been speculated to originate from a novel topological order whose identification requires a spin sensitive measurement. Using Spin-resolved-ARPES, we probe the spin degrees of freedom and demonstrate that topological quantum numbers are uniquely determined from spin-texture Berry Phase imaging measurements. Applying this method to pure antimony (Sb) and Bi-Sb, we identify the origin of its novel Topological Order and the negative value of the mirror Chern number. These results taken together constitute the first observation of surface electrons collectively carrying a topological Berry's phase and definite mirror Chern chirality in pure Antimony (Sb) which are the key electronic properties for realizing topological quantum computing via the interface Majorana fermion framework. This paper contains the details of the above mentioned previously reported (Science \textbf{323}, 919 (2009)) results.
Bihlmayer Gustav
Cava Robert. J.
Dil Jan Hugo
Hasan Zahid Md.
Hor Yew San
No associations
LandOfFree
Observation of topologically protected Dirac spin-textures and π Berry's phase in pure Antimony (Sb) and topological insulator BiSb does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Observation of topologically protected Dirac spin-textures and π Berry's phase in pure Antimony (Sb) and topological insulator BiSb, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Observation of topologically protected Dirac spin-textures and π Berry's phase in pure Antimony (Sb) and topological insulator BiSb will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-589185