Electronic states in the valence-fluctuating organic conductors (DCNQI)2Cu (DCNQI=N,N’-dicyanoquinonediimine) studied by ultraviolet photoemission spectroscopy

1993 ◽  
Vol 47 (19) ◽  
pp. 12917-12920 ◽  
Author(s):  
I. H. Inoue ◽  
M. Watanabe ◽  
T. Kinoshita ◽  
A. Kakizaki ◽  
R. Kato ◽  
...  
Keyword(s):  
Electronic States ◽  
Organic Conductors ◽  
Photoemission Spectroscopy ◽  
Ultraviolet Photoemission Spectroscopy

Effect of physisorption of inert organic molecules on Au(111) surface electronic states

2017 ◽  
Vol 19 (28) ◽  
pp. 18646-18651 ◽  
Author(s):  
Hirotaka Mizushima ◽  
Harunobu Koike ◽  
Kenta Kuroda ◽  
Yukiaki Ishida ◽  
Mitsuhiro Nakayama ◽  
...  
Keyword(s):  
Surface State ◽  
Organic Molecules ◽  
Electronic States ◽  
Photoemission Spectroscopy ◽  
Alkane Molecule ◽  
Ultraviolet Photoemission Spectroscopy ◽  
Shockley Surface State

The modification of the Au(111) Shockley surface state (SS) by an n-alkane molecule (n-tetratetracontane) monolayer was observed by angle-resolved ultraviolet photoemission spectroscopy.

Energy spectra of electrons in surface orbitals

1972 ◽  
Vol 331 (1586) ◽  
pp. 395-402 ◽  
Keyword(s):  
Electronic States ◽  
Relative Sensitivity ◽  
Experimental Methods ◽  
Energy Spectra ◽  
Photoemission Spectroscopy ◽  
Near Surface ◽  
Surface Adsorbates ◽  
Ultraviolet Photoemission Spectroscopy ◽  
Normal Light ◽  
Broad Energy

Early experimental results comparing the two experimental methods capable of detecting surface electronic states over a broad energy band are reported. These methods are ion-neutralization spectroscopy (i. n. s.) and ultraviolet-photoemission spectroscopy (u. p. s. ) at both normal and non-normal light incidence. We find very interesting differences between the two methods in their relative sensitivity to electrons in the near-surface bulk (selvedge) and in surface adsorbates.

scholarly journals Emergent flat band electronic structure in a VSe2/Bi2Se3 heterostructure

2021 ◽  
Vol 2 (1) ◽  
Author(s):  
Turgut Yilmaz ◽  
Xiao Tong ◽  
Zhongwei Dai ◽  
Jerzy T. Sadowski ◽  
Eike F. Schwier ◽  
...  
Keyword(s):  
Dirac Point ◽  
Electronic States ◽  
Quantum States ◽  
Photoemission Spectroscopy ◽  
Flat Band ◽  
Strongly Correlated ◽  
Dirac Cone ◽  
Angle Resolved Photoemission Spectroscopy ◽  
Topological Materials ◽  
Photoemission Study

AbstractFlat band electronic states are proposed to be a fundamental tool to achieve various quantum states of matter at higher temperatures due to the enhanced electronic correlations. However, materials with such peculiar electronic states are rare and often rely on subtle properties of the band structures. Here, by using angle-resolved photoemission spectroscopy, we show the emergent flat band in a VSe2 / Bi2Se3 heterostructure. Our photoemission study demonstrates that the flat band covers the entire Brillouin zone and exhibits 2D nature with a complex circular dichroism. In addition, the Dirac cone of Bi2Se3 is not reshaped by the flat band even though they overlap in proximity of the Dirac point. These features make this flat band distinguishable from the ones previously found. Thereby, the observation of a flat band in the VSe2 / Bi2Se3 heterostructure opens a promising pathway to realize strongly correlated quantum effects in topological materials.

CESIUM-INDUCED QUANTIZED 2D ELECTRON CHANNEL ON THE InAs(110) SURFACE

1995 ◽  
Vol 02 (06) ◽  
pp. 723-729 ◽  
Author(s):  
V. YU. ARISTOV ◽  
G. LE LAY ◽  
M. GREHK ◽  
V.M. ZHILIN ◽  
A. TALEB-IBRAHIMI ◽  
...  
Keyword(s):  
Electron Emission ◽  
Electronic States ◽  
Photoemission Spectroscopy ◽  
Spectral Features ◽  
Two Dimensional ◽  
Dimensional Electron ◽  
Discrete Energy ◽  
Electron Channel ◽  
Self Consistent ◽  
Electron Photoemission

We present the first clear evidence of electron emission arising directly from a quantized two-dimensional electron channel from the InAs (110) surface covered by a few Cs atoms (≈ 0.01 Cs ML). Spectral features observed by photoemission spectroscopy using synchrotron radiation reveal discrete-energy electronic states resulting from quantization in the direction normal to the surface. The electron photoemission originates from the vicinities of [Formula: see text] points in the first and second surface Brillouin zones corresponding to the bottom of the conduction band. These findings are in agreement with self-consistent theoretical energy-level calculations using a jellium-like model.

Effect of a MoO3 buffer layer between C8-BTBT and Co(100) single-crystal film

RSC Advances ◽  
2016 ◽  
Vol 6 (113) ◽  
pp. 112403-112408 ◽  
Author(s):  
Menglong Zhu ◽  
Lu Lyu ◽  
Dongmei Niu ◽  
Hong Zhang ◽  
Shitan Wang ◽  
...  
Keyword(s):  
Single Crystal ◽  
Buffer Layer ◽  
Photoemission Spectroscopy ◽  
X Ray ◽  
Single Crystal Film ◽  
Crystal Film ◽  
Ultraviolet Photoemission Spectroscopy

The effect of a MoO3 buffer layer inserted between 2,7-dioctyl[1]benzothieno[3,2-b]benzothiophene (C8-BTBT) and Co single-crystal film has been investigated using X-ray photoemission spectroscopy (XPS) and ultraviolet photoemission spectroscopy (UPS).

Novel electronic states of organic conductors under uniaxial stress or uniaxial strain

2001 ◽  
Vol 117 (1-3) ◽  
pp. 87-90 ◽  
Author(s):  
S. Kagoshima ◽  
M. Maesato ◽  
Y. Kaga ◽  
R. Kondo
Keyword(s):  
Electronic States ◽  
Uniaxial Stress ◽  
Organic Conductors ◽  
Uniaxial Strain

Valence band ultraviolet photoemission spectroscopy of Dy/W(100)

Vacuum ◽  
2002 ◽  
Vol 67 (3-4) ◽  
pp. 429-433 ◽  
Author(s):  
N Moslemzadeh ◽  
S.D Barrett ◽  
V.R Dhanak ◽  
G Miller
Keyword(s):  
Valence Band ◽  
Photoemission Spectroscopy ◽  
Ultraviolet Photoemission Spectroscopy
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