Nanoscale Friction: Kinetic Friction of Magnetic Flux Quanta and Charge Density Waves

A. Maeda, Y. Inoue, H. Kitano, Sergey Savel’ev, S. Okayasu, I. Tsukada, and Franco Nori
Phys. Rev. Lett. 94, 077001 – Published 22 February 2005

Abstract

In analogy with the standard macroscopic friction, here we present a comparative study of the friction force felt by moving vortices in superconductors and charge density waves. Using experiments and a model for this data, our observations (1) provide a link between friction at the micro- and macroscopic scales, (2) explain the roundness of the static-kinetic friction transition in terms of thermal fluctuations, particle interactions, and system size (critical-phenomena view), and (3) explain the crossing of the kinetic friction Fk versus velocity V for our pristine (high density of very weak defects) and our irradiated samples (with lower density of deeper pinning defects).

  • Figure
  • Received 5 October 2004

DOI:https://doi.org/10.1103/PhysRevLett.94.077001

©2005 American Physical Society

Authors & Affiliations

A. Maeda1,2, Y. Inoue1, H. Kitano1, Sergey Savel’ev2, S. Okayasu3, I. Tsukada4, and Franco Nori2,5

  • 1Department of Basic Science, University of Tokyo, 3-8-1, Komaba, Meguro-ku, Tokyo, 153-8902, Japan
  • 2Frontier Research System, RIKEN, Saitama, 351-0198, Japan
  • 3JAERI, Tokai-mura, Naka-gun, Ibaraki 319-1195, Japan
  • 4CRIEPI, 2-11-1, Iwadokita, Komae, Tokyo, 201-8511, Japan
  • 5Department of Physics and MCTP, University of Michigan, Ann Arbor, MI 48109-1120, USA

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Issue

Vol. 94, Iss. 7 — 25 February 2005

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