Magnetic Recording: Magnetic‐Pole Flip by Millimeter Wave (Adv. Mater. 48/2020)

In article number 2004897, Shin‐ichi Ohkoshi and co‐workers propose a new magnetic recording methodology, “focused‐millimeter‐wave‐assisted magnetic recording (F‐MIMR)”, to drastically increase the recording density of magnetic tapes. Demonstrations are performed using magnetic films based on a seri...

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Veröffentlicht in:	Advanced materials (Weinheim) 2020-12, Vol.32 (48), p.n/a
Hauptverfasser:	Ohkoshi, Shin‐ichi, Yoshikiyo, Marie, Imoto, Kenta, Nakagawa, Kosuke, Namai, Asuka, Tokoro, Hiroko, Yahagi, Yuji, Takeuchi, Kyohei, Jia, Fangda, Miyashita, Seiji, Nakajima, Makoto, Qiu, Hongsong, Kato, Kosaku, Yamaoka, Takehiro, Shirata, Masashi, Naoi, Kenji, Yagishita, Koichi, Doshita, Hiroaki
Format:	Artikel
Sprache:	eng
Schlagworte:	Density epsilon iron oxide Iron oxides Magnetic films Magnetic poles Magnetic recording Magnetic tape magnetization reversal Millimeter waves nanoparticles
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Zusammenfassung:	In article number 2004897, Shin‐ichi Ohkoshi and co‐workers propose a new magnetic recording methodology, “focused‐millimeter‐wave‐assisted magnetic recording (F‐MIMR)”, to drastically increase the recording density of magnetic tapes. Demonstrations are performed using magnetic films based on a series of epsilon iron oxide, ε‐Fe2O3. Irradiation of the focused millimeter wave generated from terahertz (THz) light flips the magnetic pole direction, leading to a breakthrough technology for high‐density magnetic recordings.
ISSN:	0935-9648 1521-4095
DOI:	10.1002/adma.202070361