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Nanopatterns induced by pulsed laser irradiation on the surface of an Fe-Al alloy and their magnetic properties

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Title: Nanopatterns induced by pulsed laser irradiation on the surface of an Fe-Al alloy and their magnetic properties
Authors: Yoshida, Yutaka Browse this author
Oosawa, Kazuya Browse this author
Watanabe, Seiichi Browse this author →KAKEN DB
Kaiju, Hideo Browse this author
Kondo, Kenji Browse this author →KAKEN DB
Ishibashi, Akira Browse this author
Yoshimi, Kyosuke Browse this author
Issue Date: 7-May-2013
Publisher: American Institute of Physics
Journal Title: Applied Physics Letters
Volume: 102
Start Page: 183109
Publisher DOI: 10.1063/1.4804363
Abstract: We have studied nanopatterns induced by nanosecond pulsed laser irradiation on (111) plane surfaces of a polycrystalline iron-aluminum alloy and evaluated their magnetic properties. Multiple nanosecond pulsed laser irradiation induces a wavelength-dependent surface transformation of the lattice structure from a B2-type to a supersaturated body centered cubic lattice. The selective formation of surface nanopatterns consisting of holes, stripes, polygonal networks, and dot-like nanoprotrusions can be observed. Furthermore, focused magneto-optical Kerr effect measurements reveal that the magnetic properties of the resultant nanostructured region changes from a paramagnetic to a ferromagnetic phase in accordance with the number of laser pulses.
Rights: Copyright 2013 American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics. The following article appeared in Applied Physics Letters 102, 183109 (2013) and may be found at https://dx.doi.org/10.1063/1.4804363
Type: article
URI: http://hdl.handle.net/2115/52675
Appears in Collections:エネルギー・マテリアル融合領域研究センター (Center for Advanced Research of Energy and Material) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 渡辺 精一

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