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Journal of Applied Physics / Volume 102 / Issue 7 / INTERDISCIPLINARY AND GENERAL PHYSICS

J. Appl. Phys. 102, 074912 (2007); doi:10.1063/1.2786072 (3 pages)

Magnetic memory of oil paintings

P. Costa Ribeiro1, A. C. Bruno1, H. R. Carvalho1, S. M. Kafensztok1, P. O. Almeida1, C. S. Wolff1, H. Lins de Barros2, D. Acosta-Avalos2, and O. G. Symko3

1Department of Physics, Pontificia Universidade Católica do Rio de Janeiro (PUC-RJ), Rua Marquês de São Vicente 225-Gavea, CEP 22453-900 Rio de Janeiro, Brazil
2Centro Brasileiro de Pesquisas Físicas (CBPF), Rua Xavier Sigaud 150-Urca, CEP 22290-150 Rio de Janeiro, Brazil
3Department of Physics, University of Utah, 84112 Utah, USA

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(Received 6 July 2007; accepted 7 August 2007; published online 10 October 2007)

The color in oil paints is obtained sometimes from magnetic minerals. This fact implies that oil paintings could present an intrinsic magnetization. Magnetic imaging of an oil painting consists in the measurement of magnetic flux related to the magnetization of the painting. In this report results of magnetic measurements show that oil paints from different manufacturers (Maimeri, Pebeo, and Grumbacher) are magnetic. The magnetic imagings of four similar oil paintings done with the same visual color, obtained using different mixtures of oil paints for each painting, were different. This shows that the magnetic imaging can be used as a fingerprint for the oil paintings. Magnetic imaging was obtained for oil paintings done by Oswald, Bianco, and Timoteo, all of them are Brazilian painters. The imaging obtained in measurements at different times was always the same, showing that the magnetic images are stable. This leads to the conclusion that magnetic imaging would be a common authentication technique of paintings.

© 2007 American Institute of Physics

Article Outline

  1. INTRODUCTION
  2. EXPERIMENTAL DETAILS
  3. RESULTS
  4. DISCUSSION
  5. CONCLUSION

ERRATUM

  1. Erratum: “Magnetic memory of oil paintings” [J. Appl. Phys. 102, 074912 (2007)]
    P. Costa Ribeiro et al.
    J. Appl. Phys. 103, 019901 (2008)JAPIAU000103000001019901000001

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KEYWORDS and PACS

Keywords

fingerprint identification, imaging, magnetic materials, magnetic storage, magnetisation, painting, SQUID magnetometers

PACS

  • 75.60.Ej

    Magnetization curves, hysteresis, Barkhausen and related effects

ARTICLE DATA

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http://link.aip.org/link/doi/10.1063/1.2786072

PUBLICATION DATA

ISSN:

0021-8979 (print)  
1089-7550 (online)

Publisher:

$abstract.society.value is a Member of CrossRef American Institute of Physics

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Figures (6)

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