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Magnetism in Carbon: Writing Magnetic Structures with a Proton Micro-Beam on Graphite Surfaces

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Schindler K., Spemann D., Ziese M., Esquinazi P., Butz T.

Acta Physica Polonica A

2006

vol. 109

issue 3

249-255

Recent publications demonstrated the generation of magnetic order at room temperature on graphite surfaces after irradiation with protons. In this contribution we show that it is possible to produce magnetic structures in the micrometer range using a proton micro-beam by proton irradiation of the surface of highly oriented pyrolytic graphite samples. The experimental results are compared with micromagnetic simulations.

Ion Microscopy and Tomography

100%

Butz T., Lehmann D., Reinert T., Spemann D., Vogt J.

Acta Physica Polonica A

2001

vol. 100

issue 5

603-613

The use of light ions for microscopy and tomography is illustrated by a variety of recent applications in materials and life sciences at the Leipzig high-energy ion-nanoprobe LIPSION with a short comparison to other microscopic techniques. The versatility of ion techniques is exemplified by Rutherford backscattering spectrometry maps of thin films of solar cell materials, particle induced X-ray emission maps of manganese in ancient human bones, particle induced X-ray emission on single aerosol particles withμm size, and scanning transmission ion microscopy and tomography on pigs knee cartilage. Finally, the design of a single ion single living cell bombardment facility is sketched for studies of the cellular response and microdosimetry.

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2 Acta Physica Polonica A

1 2006

1 2001

2 Butz T.

2 Spemann D.

1 Esquinazi P.

1 Lehmann D.

1 Reinert T.

1 Schindler K.

1 Vogt J.

1 Ziese M.

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Magnetism in Carbon: Writing Magnetic Structures with a Proton Micro-Beam on Graphite Surfaces

Ion Microscopy and Tomography