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Magnetic Patterning: Local Photothermal Control of Phase Transitions for On‐Demand Room‐Temperature Rewritable Magnetic Patterning (Adv. Mater. 22/2020)
Author(s) -
Mei Antonio B.,
Gray Isaiah,
Tang Yongjian,
Schubert Jürgen,
Werder Don,
Bartell Jason,
Ralph Daniel C.,
Fuchs Gregory D.,
Schlom Darrell G.
Publication year - 2020
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.202070168
Subject(s) - materials science , ferromagnetism , ultrashort pulse , antiferromagnetism , nanotechnology , nanostructure , optoelectronics , condensed matter physics , phase transition , photothermal therapy , laser , optics , physics
Patterned magnetic nanostructures are foundational to magnetic memory and logic devices. In article number 2001080, Antonio B. Mei, Gregory D. Fuchs, and co‐workers design a platform for reconfigurable magnetic nanostructures in FeRh by tuning the transition temperature from antiferromagnetic to ferromagnetic such that both phases are stable at room temperature. Focused laser heating is used to write ferromagnetic patterns of arbitrary shape at ultrafast speeds, which can be erased by cooling below room temperature.