Details

Autor(en) / Beteiligte

• Wang, Qiyue
• Liu, Cheng-Cheng
• Lu, Yuan-Ming
• Zhang, Fan

Titel

High-Temperature Majorana Corner States

Ist Teil von

• Physical review letters, 2018-11, Vol.121 (18), p.186801-186801, Article 186801

Ort / Verlag

United States: American Physical Society

Erscheinungsjahr

2018

Quelle

PROLA

Beschreibungen/Notizen

• Majorana bound states often occur at the end of a 1D topological superconductor. Validated by a new bulk invariant and an intuitive edge argument, we show the emergence of one Majorana Kramers pair at each corner of a square-shaped 2D topological insulator proximitized by an s_{±}-wave (e.g., Fe-based) superconductor. We obtain a phase diagram that addresses the relaxation of crystal symmetry and edge orientation. We propose two experimental realizations in candidate materials. Our scheme offers a higher-order and higher-temperature route for exploring non-Abelian quasiparticles.