Pregled bibliografske jedinice broj: 1085839
Two types of Dirac-cone surface states on the (111) surface of the topological crystalline insulator SnTe
Two types of Dirac-cone surface states on the (111) surface of the topological crystalline insulator SnTe // Physical Review B, 88 (2013), 23; 235126, 5 doi:10.1103/physrevb.88.235126 (međunarodna recenzija, članak, ostalo)
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Naslov
Two types of Dirac-cone surface states on the
(111) surface of the topological crystalline
insulator SnTe
Autori
Tanaka, Y. ; Shoman, T. ; Nakayama, K. ; Souma, S. ; Sato, T. ; Takahashi, T. ; Novak, M. ; Segawa, Kouji ; Ando, Yoichi
Izvornik
Physical Review B (1098-0121) 88
(2013), 23;
235126, 5
Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, ostalo
Ključne riječi
ARPES
Sažetak
We have performed angle-resolved photoemission spectroscopy (ARPES) on the (111) surface of the topological crystalline insulator SnTe. Distinct from a pair of Dirac-cone surface states across the ¯¯¯ X point of the surface Brillouin zone on the (001) surface, we revealed two types of Dirac- cone surface states each centered at the ¯¯¯ Γ and ¯¯¯¯ M points, which originate from the bulk-band inversion at the L points. We also found that the energy location of the Dirac point and the Dirac velocity are different from each other. This ARPES experiment demonstrates the surface states on different crystal faces of a topological material, and it elucidates how mirror- symmetry-protected Dirac cones of a topological crystalline insulator show up on surfaces with different symmetries.
Izvorni jezik
Engleski
Znanstvena područja
Fizika
Citiraj ovu publikaciju:
Časopis indeksira:
- Current Contents Connect (CCC)
- Web of Science Core Collection (WoSCC)
- Science Citation Index Expanded (SCI-EXP)
- SCI-EXP, SSCI i/ili A&HCI
- Scopus
