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원자제어 저차원 전자계 연구단
원자제어 저차원 전자계 연구단
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Nonvortical Rashba Spin Structure on a Surface with C1h Symmetry

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Title
Nonvortical Rashba Spin Structure on a Surface with C1h Symmetry
Author(s)
Emilia Annese; Takuya Kuzumaki; Beate Müller; Yuta Yamamoto; Hiroto Nakano; Haruki Kato; Atsushi Araki; Minoru Ohtaka; Takashi Aoki; Hirotaka Ishikawa; Takashi Hayashida; Jacek R. Osiecki; Koji Miyamoto; Yasuo Takeichi; Ayumi Harasawa; Koichiro Yaji; Tetsuroh Shirasawa; Koh-ichi Nittoh; Wooil Yang; Kazushi Miki; Tatsuki Oda; Han Woong Yeom; Kazuyuki Sakamoto
Publication Date
2016-06
Journal
PHYSICAL REVIEW LETTERS, v.16, no.117, pp.016803 -
Publisher
AMER PHYSICAL SOC
Abstract
A totally anisotropic peculiar Rashba-Bychkov (RB) splitting of electronic bands was found on the Tl=Sið110Þ-ð1 × 1Þ surface with C1h symmetry by angle- and spin-resolved photoelectron spectroscopy and first-principles theoretical calculation. The constant energy contour of the upper branch of the RB split band has a warped elliptical shape centered at a k point located between ¯Γ and the edge of the surface Brillouin zone, i.e., at a point without time-reversal symmetry. The spin-polarization vector of this state is in-plane and points almost the same direction along the whole elliptic contour. This novel nonvortical RB spin structure is confirmed as a general phenomenon originating from the C1h symmetry of the surface. © 2016 American Physical Society
URI
http://pr.ibs.re.kr/handle/8788114/3384
DOI
10.1103/PhysRevLett.117.016803
ISSN
0031-9007
Appears in Collections:
Center for Artificial Low Dimensional Electronic Systems(원자제어 저차원 전자계 연구단) > Journal Papers (저널논문)
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