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Title: Spectroscopic probe of the van der Waals interaction between polar molecules and a curved surface

Authors:
; ; ;
Publication Date:
Sponsoring Org.:
USDOE
OSTI Identifier:
1297271
Grant/Contract Number:
DF-FC02-94ER40818
Resource Type:
Journal Article: Publisher's Accepted Manuscript
Journal Name:
Physical Review A
Additional Journal Information:
Journal Volume: 94; Journal Issue: 2; Related Information: CHORUS Timestamp: 2016-08-17 18:10:04; Journal ID: ISSN 2469-9926
Publisher:
American Physical Society
Country of Publication:
United States
Language:
English

Citation Formats

Bimonte, Giuseppe, Emig, Thorsten, Jaffe, R. L., and Kardar, Mehran. Spectroscopic probe of the van der Waals interaction between polar molecules and a curved surface. United States: N. p., 2016. Web. doi:10.1103/PhysRevA.94.022509.
Bimonte, Giuseppe, Emig, Thorsten, Jaffe, R. L., & Kardar, Mehran. Spectroscopic probe of the van der Waals interaction between polar molecules and a curved surface. United States. doi:10.1103/PhysRevA.94.022509.
Bimonte, Giuseppe, Emig, Thorsten, Jaffe, R. L., and Kardar, Mehran. Wed . "Spectroscopic probe of the van der Waals interaction between polar molecules and a curved surface". United States. doi:10.1103/PhysRevA.94.022509.
@article{osti_1297271,
title = {Spectroscopic probe of the van der Waals interaction between polar molecules and a curved surface},
author = {Bimonte, Giuseppe and Emig, Thorsten and Jaffe, R. L. and Kardar, Mehran},
abstractNote = {},
doi = {10.1103/PhysRevA.94.022509},
journal = {Physical Review A},
number = 2,
volume = 94,
place = {United States},
year = {Wed Aug 17 00:00:00 EDT 2016},
month = {Wed Aug 17 00:00:00 EDT 2016}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record at 10.1103/PhysRevA.94.022509

Citation Metrics:
Cited by: 3works
Citation information provided by
Web of Science

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  • The van der Waals potential between a neutral atom (no permanent dipole) and a metallic surface is presented. The treatment, based on the normal modes of the system, allows a deeper understanding of the nature of van der Waals forces and makes it practically possible to calculate for complex geometries. To show this we derive theoretical expressions for the interactions of atoms with cylinders and spheres, besides the well-known plane-geometry formula. These formulas are new in some aspects and constitute the theoretical counterpart of many experimental situations. In the same vein we allow a stochastic surface roughness to be presentmore » in the plane geometry and show how the problem can be solved analytically in the electrostatic approximation. Numerical calculations and comparison with experiments are presented in paper II.« less
  • The scattering of nonpolarized atoms by a macroscopic metallic cylinder is studied in detail. The interaction potential for such a system has been presented in a previous paper. Applying it to the Cs-Au system we find that the disagreement between theory and experiment can actually be explained in terms of surface roughness only, while dynamical corrections and geometrical effects are negligible. Our result differs somewhat from the Mehl and Schaich analysis, but it does not conflict with their findings, since the two models for the surface are different. In addition we present an analytical solution for the intensity that canmore » be advantageously employed to within 3% of accuracy and can be retained exact for a z/sup -n/-type potential. This allows us to show how the averaged potential remains, a good quantity to work with even if the fluctuations are large.« less
  • Calculations are presented of the coefficient C/sub 3/ of the z/sup -3/ dispersion interaction between Ir and Ta atoms and a W surface. The results depend sensitively on the assumed value of the atomic polarizability. If experimental values are used, the results for C/sub 3/ are consistent with determinations based on the atomic deflection by a field-emission tip.
  • Presenting a relatively simple ab initio method to calculate full van der Walls interaction potentials between molecules, rules are given for the optimization of basis functions which permit the reliable evaluation of second order long range interactions. Closed expressions for the long range interaction energy are derived in which the orientational dependence is simplified to the utmost. Calculations show that even for molecules which have no dipole moment, such as ethylene, the strongly anisotropic electrostatic interactions are of the same magnitude as the dispersion interactions, but also that the anisotropic (''cross'') terms in the dispersion energy are about equal inmore » size to the corresponding ''quadratic'' terms. Even though these anisotropic forces cancel to a large extent in the cohesion energy of the ethylene crystal, they can have important effects on some of the other crystal properties.« less