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[Fizinfo] ELTE Nanofizika Szeminarium jovo hetfon


Chronological Thread 
  • From: Andras Palyi <andraspalyi AT caesar.elte.hu>
  • To: FIZINFO AT lists.kfki.hu
  • Subject: [Fizinfo] ELTE Nanofizika Szeminarium jovo hetfon
  • Date: Fri, 23 Nov 2012 18:04:01 +0100
  • List-archive: <http://mailman.kfki.hu/pipermail/fizinfo>
  • List-id: ELFT HÍRADÓ <fizinfo.lists.kfki.hu>

Az ELTE Nanofizika Szeminarium jovo hetfoi eloadasa:

Rakyta Péter: Electronic standing waves on the surface of the topological insulator Bi2Te3

Helyszin: ELTE Eszaki Tomb, 5.55-os terem (1117 Budapest, Pazmany Peter setany 1/A),
Idopont: 2012. november 26. hetfo, 10:15

Kivonat:
"A line defect on a metallic surface induces standing waves in the electronic local density of states (LDOS). Asymptotically far from the defect, the wave number of the LDOS oscillations at the Fermi energy is usually equal to the distance between nesting segments of the Fermi contour, and the envelope of the LDOS oscillations shows a power-law decay as moving away from the line defect. Here, we theoretically analyze the LDOS oscillations close to a line defect on the surface of the topological insulator Bi2Te3, and identify an important pre- asymptotic contribution with wave number and decay characteristics markedly different from the asymptotic contributions. Wave numbers characterizing the pre-asymptotic LDOS oscillations are in good agreement with recent data from scanning tunneling microscopy experiments [Phys. Rev. Lett. 104, 016401 (2010)].

Reference: P. Rakyta et al., Phys. Rev. B 86, 085456 (2012), http://link.aps.org/doi/10.1103/PhysRevB.86.085456 "

Minden erdeklodot szivesen latunk.

A szeminarium tovabbi programja:
http://wigner.elte.hu/koltai/science/?q=seminar

Udvozlettel,
Palyi Andras





  • [Fizinfo] ELTE Nanofizika Szeminarium jovo hetfon, Andras Palyi, 11/23/2012

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