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

• Yoshida, Yutaka

• Oosawa, Kazuya

• Watanabe, Seiichi

• Kaiju, Hideo

• Kondo, Kenji

• Ishibashi, Akira

• Yoshimi, Kyosuke

抄録

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.

収録刊行物

• Applied Physics Letters

  Applied Physics Letters 102 183109-, 2013-05-07

  American Institute of Physics

詳細情報

• CRID: 1050001202673739008
• NII論文ID: 120005228655
• ISSN: 10773118
• ISSN: 00036951
• HANDLE: 2115/52675
• 本文言語コード: en
• 資料種別: journal article
• データソース種別:
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  • CiNii Articles