TY - JOUR
T1 - X-ray magnetic circular dichroism photoemission electron microscopy of focused ion beam-induced magnetic patterns on iron–rhodium surfaces
AU - Tohki, Atsushi
AU - Aikoh, Kazuma
AU - Shinoda, Ryoichi
AU - Ohkochi, Takuo
AU - Kotsugi, Masato
AU - Nakamura, Tetsuya
AU - Kinoshita, Toyohiko
AU - Iwase, Akihiro
AU - Matsui, Toshiyuki
N1 - Funding Information:
The XMCD–PEEM experiment was performed with the approval of SPring-8 (Proposal Nos. 2012A1174 and 2010B1708). This work was financially supported by Wakasa Wan Energy Research Center , and a Grant-in-Aid for Challenging Exploratory Research (Grant No. 23656592 ) from the Japan Society for the Promotion of Science .
Publisher Copyright:
© 2013 Elsevier B.V.
PY - 2013/5/1
Y1 - 2013/5/1
N2 - Iron–rhodium (FeRh) thin films were irradiated with a 30 keV Ga ion beam using a focused ion beam system to produce micrometer scale ferromagnetic square dot arrays. Two-dimensional magnetic square dot arrays with dimensions of 30 × 30, 10 × 10, and 5 × 5 μm were successfully produced on the FeRh surface, which was confirmed by magnetic force microscopy. The results of photoemission electron microscopy combined with X-ray magnetic circular dichroism revealed that the magnetization of the magnetic square dots could be controlled by changing the amount of irradiation. The magnetic domain structure of the magnetic square dots with sides of 5–30 μm was found to be a single domain structure, which was possibly influenced by the interaction between ferromagnetic and antiferromagnetic interfaces.
AB - Iron–rhodium (FeRh) thin films were irradiated with a 30 keV Ga ion beam using a focused ion beam system to produce micrometer scale ferromagnetic square dot arrays. Two-dimensional magnetic square dot arrays with dimensions of 30 × 30, 10 × 10, and 5 × 5 μm were successfully produced on the FeRh surface, which was confirmed by magnetic force microscopy. The results of photoemission electron microscopy combined with X-ray magnetic circular dichroism revealed that the magnetization of the magnetic square dots could be controlled by changing the amount of irradiation. The magnetic domain structure of the magnetic square dots with sides of 5–30 μm was found to be a single domain structure, which was possibly influenced by the interaction between ferromagnetic and antiferromagnetic interfaces.
KW - FeRh thin film
KW - First order magnetic phase transition
KW - Focused ion beam irradiation
KW - Ion-beam irradiation
KW - Magnetic domain
KW - Magnetic patterning
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U2 - 10.1016/j.nimb.2013.03.028
DO - 10.1016/j.nimb.2013.03.028
M3 - Article
AN - SCOPUS:84875898416
SN - 0168-583X
VL - 302
SP - 51
EP - 54
JO - Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms
JF - Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms
ER -