STM Imaging of Electron Migration in Real Space and Time: A Simulation Study

被引：17

作者：

Kwok, YanHo ^{[1
,2
]}

Chen, GuanHua ^{[1
]}

Mukamel, Shaul ^{[3
]}

机构：

[1] Univ Hong Kong, Dept Chem, Pofkulam Rd, Hong Kong, Peoples R China

[2] QuantumFabless Ltd, Sha Tin, Hong Kong, Peoples R China

[3] Univ Calif Irvine, Dept Chem & Phys & Astron, Irvine, CA 92617 USA

来源：

NANO LETTERS | 2019年 / 19卷 / 10期

基金：

美国国家科学基金会;

关键词：

Scanning tunneling microscopy; optical pump-probe; charge migration; time-dependent simulation; DYNAMICS; CHARGE; SPECTROSCOPY;

D O I：

10.1021/acs.nanolett.9b02389

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Using a simulation protocol that mimics ultrafast scanning tunneling microscopy (STM) experiments, we demonstrate how pump-probe ultrafast STM may be used to image electron migration in molecules. Two pulses are applied to a model system, and the time-integrated current through the tip is calculated versus the delay time and tip position to generate STM images. With suitable pump and probe parameters, the images can track charge migration with atomistic spatial and femtosecond temporal resolutions.

引用

页码：7006 / 7012

页数：7

共 50 条

[31] Simulation study of the atomic resolution secondary electron imaging
Ruan, Z.
Zhang, M.
Zeng, R. G.
Ming, Y.
Da, B.
Mao, S. F.
Ding, Z. J.
SURFACE AND INTERFACE ANALYSIS, 2014, 46 (12-13) : 1296 - 1300
[32] REAL-SPACE IMAGING OF SURFACES BY ELECTRON-SCATTERING IN THE KILOELECTRONVOLT RANGE
ERBUDAK, M
HOCHSTRASSER, M
SCHULTHESS, T
WETLI, E
PHILOSOPHICAL MAGAZINE LETTERS, 1993, 68 (03) : 179 - 184
[33] REAL-TIME STM AFM STUDY OF ELECTRON-TRANSFER REACTIONS OF AN ORGANIC-MOLECULE - XANTHINE AT THE GRAPHITE WATER INTERFACE
TAO, NJ
SHI, Z
SURFACE SCIENCE, 1994, 321 (1-2) : L149 - L156
[34] Real-time in vivo imaging of fungal migration to the central nervous system
Shi, Meiqing
Calaruso, Pina
Mody, Christopher H.
CELLULAR MICROBIOLOGY, 2012, 14 (12) : 1819 - 1827
[35] Real time in vivo imaging of eosinophil and neutrophil migration in healthy and asthmatic volunteers
Lukawska, J. J.
Livieratos, L.
Sawyer, B. M.
Lee, T. H.
O'Doherty, M.
Blower, P. J.
Kofi, M.
Ballinger, J. R.
Corrigan, C. J.
Gnanasegeran, G.
Mullen, G. E.
ALLERGY, 2013, 68 : 76 - 76
[36] ARE SPACE AND TIME REAL
NEISSER, HP
PHILOSOPHY AND PHENOMENOLOGICAL RESEARCH, 1971, 31 (03) : 421 - 425
[37] Feasibility of Multiplane-Transmit Beamforming for Real-Time Volumetric Cardiac Imaging: A Simulation Study
Chen, Yinran
Tong, Ling
Ortega, Alejandra
Luo, Jianwen
D'hooge, Jan
IEEE TRANSACTIONS ON ULTRASONICS FERROELECTRICS AND FREQUENCY CONTROL, 2017, 64 (04) : 648 - 659
[38] Simulation study of real time 3-D Synthetic Aperture Sequential Beamforming for Ultrasound imaging
Hemmsen, Martin Christian
Rasmussen, Morten Fischer
Stuart, Mathias Bo
Jensen, Jorgen Arendt
MEDICAL IMAGING 2014: ULTRASONIC IMAGING AND TOMOGRAPHY, 2014, 9040
[39] THE SEISMICITY MIGRATION STUDY BASED ON SPACE-TIME DIAGRAMS
Levina, E. A.
Ruzhich, V. V.
GEODYNAMICS & TECTONOPHYSICS, 2015, 6 (02): : 225 - 240
[40] Simulation of Patient-Specific Deformable Ultrasound Imaging in Real Time
Camara, Mafalda
Mayer, Erik
Darzi, Ara
Pratt, Philip
IMAGING FOR PATIENT-CUSTOMIZED SIMULATIONS AND SYSTEMS FOR POINT-OF-CARE ULTRASOUND, 2017, 10549 : 11 - 18

← 1 2 3 4 5 →