Presentation 2016-10-05
Fabrication of (001) oriented MnGa film grown on Si substrate and ion-irradiation patterning
Toru Ishikawa, Tsubasa Negoro, Kengo Fukuta, Daiki Oshima, Takeshi Kato, Satoshi Iwata,
PDF Download Page PDF download Page Link
Abstract(in Japanese) (See Japanese page)
Abstract(in English) We tried to grow (001) oriented L10-MnGa films on thermally oxidized Si substrate, and compared their structures and magnetic properties with those of (001) oriented L10-MnGa grown on MgO(001). Moreover, local ion irradiation on the MnGa on Si substrate was used to fabricate magnetically patterned MnGa.. The MnGa grown on Si substrate exhibited a saturation magnetization of 140 emu/cc, which is around 1/3 of that grown on MgO(001), and showed perpendicular magnetic anisotropy. The surface roughness Ra was confirmed to be 1.2 nm, and it was confirmed that the magnetism of the MnGa was transferred from ferromagnetic to paramagnetic by 30 keV Kr ion dose of 2 × 1014 ions/cm2. Furthermore, we confirmed the magnetically patterned structure with a pitch size down to 150 nm by the local ion irradiation on MnGa on Si substrate.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) Bit patternd media / Ion irradiation / MnGa ordered alloy
Paper # CPM2016-57
Date of Issue 2016-09-28 (CPM)

Conference Information
Committee CPM
Conference Date 2016/10/5(1days)
Place (in Japanese) (See Japanese page)
Place (in English) Kikai-Shinko-Kaikan Bldg.
Topics (in Japanese) (See Japanese page)
Topics (in English)
Chair Satoru Noge(Numazu National College of Tech.)
Vice Chair Fumihiko Hirose(Yamagata Univ.)
Secretary Fumihiko Hirose(NTT)
Assistant Takashi Sakamoto(NTT) / Yuichi Nakamura(Toyohashi Univ. of Tech.)

Paper Information
Registration To Technical Committee on Component Parts and Materials
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Fabrication of (001) oriented MnGa film grown on Si substrate and ion-irradiation patterning
Sub Title (in English)
Keyword(1) Bit patternd media
Keyword(2) Ion irradiation
Keyword(3) MnGa ordered alloy
1st Author's Name Toru Ishikawa
1st Author's Affiliation Nagoya University(Nagoya Univ.)
2nd Author's Name Tsubasa Negoro
2nd Author's Affiliation Nagoya University(Nagoya Univ.)
3rd Author's Name Kengo Fukuta
3rd Author's Affiliation Nagoya University(Nagoya Univ.)
4th Author's Name Daiki Oshima
4th Author's Affiliation Nagoya University(Nagoya Univ.)
5th Author's Name Takeshi Kato
5th Author's Affiliation Nagoya University(Nagoya Univ.)
6th Author's Name Satoshi Iwata
6th Author's Affiliation Nagoya University(Nagoya Univ.)
Date 2016-10-05
Paper # CPM2016-57
Volume (vol) vol.116
Number (no) CPM-235
Page pp.pp.13-17(CPM),
#Pages 5
Date of Issue 2016-09-28 (CPM)