Observation of a Flat Band in Silicene
FENG Ya, FENG Bao-Jie, XIE Zhuo-Jin, LI Wen-Bin, LIU Xu, LIU De-Fa, ZHAO Lin, CHEN Lan, ZHOU Xing-Jiang** , WU Ke-Hui**
Institute of Physics, Chinese Academy of Sciences, Beijing 100190
Abstract ：The electronic structure of silicene on Ag(111) is studied by scanning tunneling microscopy and angle resolved photoemission spectroscopy. A flat band at 0.9 eV below the Fermi level is revealed. We find that the flat band is strongly suppressed near atomic defects, domain boundaries and step edges compared to that on the flat terraces. The discovery of the flat band and its sensitivity to local perturbations provides a new way to manipulate the electronic structure and properties of silicene.
收稿日期: 2014-10-21
出版日期: 2015-01-12
:
73.20.At
(Surface states, band structure, electron density of states)
73.90.+f
(Other topics in electronic structure and electrical properties of surfaces, interfaces, thin films, and low-dimensional structures)
引用本文:
. [J]. 中国物理快报, 2014, 31(12): 127303-127303.
链接本文:
https://cpl.iphy.ac.cn/CN/10.1088/0256-307X/31/12/127303
或
https://cpl.iphy.ac.cn/CN/Y2014/V31/I12/127303
[1] Tasaki H 1996 J. Stat. Phys. 84 535 1992 Phys. Rev. Lett. 69 1608 1999 Phys. Rev. Lett. 82 4312 1995 Phys. Rep. 253 1 2004 Phys. Rev. Lett. 92 246403 1991 J. Phys. A: Math. Gen. 24 L73 1991 J. Phys. A: Math. Gen. 24 3311 1991 J. Phys. A: Math. Gen. 24 4335 2013 Phys. Rev. B 87 125428 2013 Phys. Rev. B 88 224203 2011 Phys. Rev. Lett. 106 236803 2011 Phys. Rev. Lett. 106 236802 2013 Int. J. Mod. Phys. B 27 1330017 2012 Phys. Rev. Lett. 109 186805 2007 Phys. Rev. B 76 075131 2009 Phys. Rev. Lett. 102 236804 2011 Phys. Rev. Lett. 107 076802 2012 Phys. Rev. Lett. 109 055502 2012 Phys. Rev. Lett. 108 155501 2012 Nano Lett. 12 3507 2013 Nano Lett. 13 685 2012 Phys. Rev. Lett. 108 245501 2012 Phys. Rev. Lett. 109 056804 2013 Phys. Rev. Lett. 110 229702 2013 ACS Nano 7 9049 2013 Phys. Rev. Lett. 110 085504 2013 Appl. Phys. Lett. 102 081602 2008 Rev. Sci. Instrum. 79 023105 2013 Phys. Rev. Lett. 110 026603 2012 Europhys. Lett. 99 17010 2013 J. Appl. Phys. 113 104305
[1]
.
[2]
.
[3]
.
[4]
.
[5]
.
[6]
.
[7]
.
[8]
.
[9]
.
[10]
.
[11]
.
[12]
.
[13]
.
[14]
.
[15]
.
2014, Vol. 31 
