Noncontact Atomic Force Microscopy - Yale School of Engineering ...

More documents

Recommendations

Info

Atom Manipulation on Cu(110)-O Surface with LT-AFM 52 Tu-1220 Yasuhiro Sugawara, Yukinori Kinoshita, Yan Jun Li, Yoshitaka Naitoh, and Masami Kageshima Department of Applied Physics, Osaka University, Suita, Japan Manipulation of single atoms and molecules is an innovative experimental technique of nanoscience. So far, a scanning tunneling microscopy (STM) has been widely used to fabricate artificial structures by laterally pushing, pulling or sliding single atoms and molecules. However, the driving forces involved in manipulation have not been measured. Recently, an atomic force microscopy (AFM) has been also used to manipulate single atoms and molecules. Atom manipulation with an AFM is particularly promising, because it allows the direct measurement of the required forces [1]. Recently, we investigated the forces in AFM lateral manipulation for a top single Cu atom (super Cu atom) on the Cu(110)-O surface. In the case of Cu-adsorbed AFM tip, the super Cu atom on the surface was pulled at a lateral tip position on the adjacent binding site. In contrast, in the case of O-adsorbed AFM tip, the super Cu atom was pushed over the top of the super Cu atom. Thus, we found that the forces (attractive or repulsive forces) to move an atom laterally on the surface strongly depend on the atom species of the AFM tip apex and the surface. In the present study, in order to further clarify the manipulation process depending on the chemical nature of tip-sample interaction, we investigate the full tip-sample potential landscape necessary to manipulate atoms. All experiments were performed by using homebuilt noncontact AFM using frequency modulation technique operating in ultrahigh vacuum at a temperature of about 78 K. The AFM tip apex was coated with Cu or O atoms in situ by slightly making a tip-sample mechanical contact on the Cu(110)-O surface prior to the imaging. The tip-sample potentials are determined form the frequency shift versus distance curves by mathematical analysis. We found that the tip-sample potentials to move the super Cu atom laterally on the surface strongly depend on the atom species of the AFM tip apex and the surface. These results strongly suggest that the chemical nature of tip-sample interaction plays an important role in lateral atom manipulation. Furthermore, we discuss the pathways for moving the super Cu atom. Reference [1] M. Ternes, C. P. Lutz, C. F. Hirjibehedin, F. J. Gissibl and Andreas J. Heinrich. Science, 319, 66 (2008). (a) (b) Figure 1: AFM images (a) before and (b) after atom manipulation performed on Cu(110)-O surface at 78K.
Water, Ions, Membranes, Real Metals, Finite Temperature: Is there ever a pure Casimir force? Adrian Parsegian 1 1 National Institutes of Health, Bethesda, MD 20892-0924 Tu-1430 The powerful idea of vacuum fluctuations strictly confined between ideal metals dominates the psychology of much thinking about electrodynamic forces. In fact, most systems reveal interactions that depend on material properties wherein fluctuations penetrate unto permeate interacting bodies. This talk will attempt to delineate the conditions under which true Casimir forces can be expected as compared with the material-based van der Waals forces formulated by Lifshitz, Dzyaloshinskii, and Pitaevskii, then generalized by their descendents. 53
Page 1 and 2:
12 th International Conference on N
Page 3 and 4: Welcome Dear conference participant
Page 5 and 6: Topics • Atomic resolution imagin
Page 7 and 8: Committees Program Committee Jaime
Page 9 and 10: General Information (cont.) Oral Pr
Page 11 and 12: Exhibitors 9
Page 13 and 14: Proceedings (cont.) 3. Length: Pape
Page 15 and 16: Conference Program 13
Page 17 and 18: Program Summary of the NC-AFM 2009
Page 19 and 20: Monday, August 10 Satellite Worksho
Page 21 and 22: Wednesday, August 12 Oxides Chair:
Page 23 and 24: Friday, August 14 Method Developmen
Page 25 and 26: Poster Session I cont. (Tuesday) In
Page 27 and 28: POSTER Session II (Wednesday) Molec
Page 29 and 30: Poster Session II cont. (Wednesday)
Page 31 and 32: Non-retarded and retarded interacti
Page 33 and 34: Mo-0955 Multiple Scattering Casimir
Page 35 and 36: Diego Dalvit 1 Dispersive Casimir i
Page 37 and 38: Using Casimir and capillary forces
Page 39 and 40: Near-field radiative heat transfer
Page 41 and 42: Mo-1615 Tricks and facts in a high
Page 43 and 44: Measuring the topological dependenc
Page 45 and 46: Mo-1755 Contact potential differenc
Page 47 and 48: 3D Scanning Force Microscopy at Sol
Page 49 and 50: Tu-1000 Experimental and Theoretica
Page 51 and 52: Dynamic Force Spectroscopy of Singl
Page 53: Simultaneous measurement of force a
Page 57 and 58: Tu-1530 The Effective Quality Facto
Page 59 and 60: We-0900 Imaging Single Atoms on Oxi
Page 61 and 62: We-0940 Character of the short-rang
Page 63 and 64: We-1020 Local surface photovoltage
Page 65 and 66: We-1140 Theoretical DFT simulations
Page 67 and 68: We-1220 Theoretical study of the fo
Page 69 and 70: Steering the formation of molecular
Page 71 and 72: Molecular scale dissipation in olig
Page 73 and 74: Dependence of the atomic scale imag
Page 75 and 76: Th-0940 Intramolecular features of
Page 77 and 78: Th-1020 Adhesion-induced energy dis
Page 79 and 80: Measuring Atomic Charge States by n
Page 81 and 82: Th-1220 Controlling electron transf
Page 83 and 84: Oral Presentations Friday, 14 Augus
Page 85 and 86: Small amplitude atomic resolution N
Page 87 and 88: Fr-1000 Visualization of Anisotropi
Page 89 and 90: Atomic resolution dynamic lateral f
Page 91 and 92: Bimodal AFM imaging of antibodies a
Page 93 and 94: Poster Session I Tuesday, 11 August
Page 95 and 96: P.I-02 Force Map of Atomic Force Mi
Page 97 and 98: P.I-04 Improved atomic-scale contra
Page 99 and 100: P.I-06 Resonance frequency shift du
Page 101 and 102: P.I-08 Atomic force microscope cant
Page 103 and 104: Self-assembled Boronitride Nanomesh
Page 105 and 106:
P.I-12 Resolution enhanced multifre
Page 107 and 108:
P.I-14 Kelvin Force Microscopy Dyna
Page 109 and 110:
Open source scanning probe microsco
Page 111 and 112:
P.I-18 Design of a Variable Tempera
Page 113 and 114:
P.I-20 Besocke style quartz tuning
Page 115 and 116:
P.I-22 A homebuilt low-temperature
Page 117 and 118:
P.I-24 High-Speed Frequency Modulat
Page 119 and 120:
P.I-26 Deciphering Nanoscale Intera
Page 121 and 122:
Dual-Frequency-Modulation AFM Spect
Page 123 and 124:
P.I-30 Internal Resonances and Spat
Page 125 and 126:
Relation between lateral forces and
Page 127 and 128:
M. Teresa Cuberes Ultrasonic Nanoli
Page 129 and 130:
Contacting self-ordered molecular w
Page 131 and 132:
Molecular Structures of Organic Sin
Page 133 and 134:
One and Two Dimensional Structure o
Page 135 and 136:
Temperature-dependent growth of C60
Page 137 and 138:
P.II-07 Atomic Force Microscopy Stu
Page 139 and 140:
Imaging and Detection of Single Mol
Page 141 and 142:
P.II-11 Imaging Schwann Cell NGF Re
Page 143 and 144:
Molecular Resolution Investigation
Page 145 and 146:
Development of Multifrequency High-
Page 147 and 148:
Noncontact observation in liquid wi
Page 149 and 150:
P.II-19 Cantilever Holder Design fo
Page 151 and 152:
P.II-21 Manipulation Mechanism of S
Page 153 and 154:
nc-AFM Investigations of Metal Nano
Page 155 and 156:
P.II-25 Contrast formation on cross
Page 157 and 158:
P.II-27 Non-contact scanning nonlin
Page 159 and 160:
P.II-29 Local Dielectric Spectrosco
Page 161 and 162:
P.II-31 Polarization-dependent elec
Page 163 and 164:
Magnetic Resonance Force Microscopy
Page 165 and 166:
P.II-35 Enhancement of the Exchange
Page 167 and 168:
Abe M. 51,58,92,141 Clerk A. A. 78
Page 169 and 170:
Martinez N. F. 69 Parashar P. 31 Ma
Page 171 and 172:
List of Participants 169
Page 173 and 174:
Ido Shinichiro Kyoto University ido
Page 175 and 176:
Wright Alan University of Maryland
Page 177 and 178:
Ultra-high precision spatial positi
Page 179 and 180:
AD VT-QPlus_ONUS / 09-May Nanotechn
Page 181:
Surface Analysis Technology Aarhus
Page 184 and 185:
Notes
Page 186:
NC-AFM 2009 Sessions Monday August
show all

Noncontact Atomic Force Microscopy - Yale School of Engineering ...

Create successful ePaper yourself

Delete template?

Save as template?