Brownian Motion of Microscopic Solids under the Action of Fluctuating Electromagnetic Fields

Dorofeyev, Illarion; Fuchs, Harald; Wenning, G.; Gotsmann, Bernd

doi:10.1103/physrevlett.83.2402

Cited by 92 publications

(94 citation statements)

References 6 publications

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“…4,[22][23][24][25][26] Since the tip does not touch the sample, a question rises on the physical origin of the increase of the loss of energy. A few recent works have been specially dedicated to the study of the microlever energy loss in NC-AFM.…”

Section: Introductionmentioning

confidence: 99%

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Influence of noncontact dissipation in the tapping mode: Attempt to extract quantitative information on the surface properties with the local force probe method

Aimé

Boisgard

Nony

et al. 2001

The Journal of Chemical Physics

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In the Tapping mode, a variation of the oscillation amplitude and phase as a function of the tip sample distance is the necessary measurement to access quantitatively to the properties of the surface. In the present work, we give a systematic comparison between experimental data recorded on two surfaces, phase and amplitude, and theoretical curves. With an interaction between the tip and the surface taking into account an attractive and a repulsive term, the analytical approach is unable to properly describe the relationship between the phase variation and the oscillation amplitude variation. When an additional dissipation term is involved, due to the attractive interaction between the tip and the surface, the model gives a good agreement with the recorded data. Particularly, the trends in the phase variations related to the noncontact situations have been found to be amenable to an analysis based upon a simple viscoelastic behavior of the surface. ͓͔

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Section: Introductionmentioning

confidence: 99%

“…A few recent works have been specially dedicated to the study of the microlever energy loss in NC-AFM. [22][23][24][25][26] In Ref. 26, the local deformation of the sample under the action of the oscillating tip is considered as being the leading term to explain the physical origin of the additional dissipation.…”

Section: Introductionmentioning

confidence: 99%

Influence of noncontact dissipation in the tapping mode: Attempt to extract quantitative information on the surface properties with the local force probe method

Aimé

Boisgard

Nony

et al. 2001

The Journal of Chemical Physics

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“…A great deal of attention has been devoted to non-contact friction between nanostructures, including, for example, the frictional drag force between twodimensional quantum wells [1,2,3] , and the friction force between an atomic force microscope tip and a substrate [4,5,6,7,8].…”

Section: Introductionmentioning

confidence: 99%

Noncontact friction between nanostructures

Volokitin

Persson

2003

Phys. Rev. B

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We calculate the van der Waals friction between two semi-infinite solids in normal relative motion and find a drastic difference in comparison with the parallel relative motion. The case of the good conductors is investigated in details both within the local optic approximation, and using a non-local optic dielectric approach. We show that the friction may increase by many order of magnitude when the surfaces are covered by adsorbates, or can support low-frequency surface plasmons. In this case the friction is determined by resonant photon tunneling between adsorbate vibrational modes, or surface plasmon modes. The theory is compared to atomic force microscope experimental data.

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“…It turns out be 8-11 orders of magnitude smaller than that observed in experiments. 2,3,7,8 Several alternative mechanisms have been proposed in recent years (see 9 and references therein), but the problem remains unsolved.…”

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confidence: 99%

“…Indeed, recent advances in nanotechnology have enabled the study of friction on the nanoscale, 1 where a novel form of friction has been discovered, namely the non-contact friction (NCF). [2][3][4] This kind of friction occurs when two objects are in close proximity but not in physical contact. NCF is of great practical importance for the modern development of ultrasensitive force detection devices.…”

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confidence: 99%

Noncontact Friction and Relaxational Dynamics of Surface Defects

She

Balatsky

2012

Phys. Rev. Lett.

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Motion of cantilever near sample surfaces exhibits additional friction even before two bodies come into mechanical contact. Called non-contact friction (NCF), this friction is of great practical importance to the ultrasensitive force detection measurements. Observed large NCF of a micronscale cantilever found anomalously large damping that exceeds theoretical predictions by 8-11 orders of magnitude. This finding points to contribution beyond fluctuating electromagnetic fields within van der Waals approach. Recent experiments reported by Saitoh et al. (Phys. Rev. Lett. 105, 236103 (2010)) also found nontrivial distance dependence of NCF. Motivated by these observations, we propose a mechanism based on the coupling of cantilever to the relaxation dynamics of surface defects. We assume that the surface defects couple to the cantilever tip via spin-spin coupling and their spin relaxation dynamics gives rise to the backaction terms and modifies both the friction coefficient and the spring constant. We explain the magnitude, as well as the distance dependence of the friction due to these backaction terms. Reasonable agreement is found with the experiments.

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Brownian Motion of Microscopic Solids under the Action of Fluctuating Electromagnetic Fields

Cited by 92 publications

References 6 publications

Influence of noncontact dissipation in the tapping mode: Attempt to extract quantitative information on the surface properties with the local force probe method

Influence of noncontact dissipation in the tapping mode: Attempt to extract quantitative information on the surface properties with the local force probe method

Noncontact friction between nanostructures

Noncontact Friction and Relaxational Dynamics of Surface Defects

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