Unidirectional switching of magnetic vortex core in a nanocavity mediated nanodisk: Looking for a reliable low-power-driven and fast switching in terms of geometric parameters

2021 ◽  
Vol 527 ◽  
pp. 167758
Author(s):  
Xiao-Ping Ma ◽  
Ming-Xuan Cai ◽  
Je-Ho Shim ◽  
Hong-Guang Piao ◽  
Dong-Hyun Kim ◽  
...  
Keyword(s):  
Low Power ◽  
Vortex Core ◽  
Geometric Parameters ◽  
Magnetic Vortex ◽  
Fast Switching

Nanocavity-Mediated Fast Magnetic Vortex Core In-Situ Switching by Local Magnetic Field

2021 ◽  
Vol 38 (12) ◽  
pp. 127501
Author(s):  
Xiao-Ping Ma ◽  
Hongguo Yang ◽  
Changfeng Li ◽  
Cheng Song ◽  
Hong-Guang Piao
Keyword(s):  
Magnetic Field ◽  
Vortex Core ◽  
Switching Time ◽  
Magnetic Vortex ◽  
Local Magnetic Field ◽  
Fast Switching ◽  
Low Field ◽  
Perpendicular Field ◽  
Data Reading

Fast in situ switching of magnetic vortex core in a ferromagnetic nanodisk assisted by a nanocavity, with diameter comparable to the dimension of a vortex core, is systematically investigated by changing the strength as well as the diameter of the effective circular region of the applied magnetic field. By applying a local magnetic field within a small area at the nanodisk center, fast switching time of about 35 ps is achieved with relatively low field strength (70 mT) which is beneficial for fast data reading and writing. The reason for this phenomenon is that the magnetic spins around the nanocavity is aligned along the cavity wall due to the shape anisotropy when the perpendicular field is applied, which deepens the dip around the vortex core, and thus facilitates the vortex core switching.

Observation of Defect-Assisted Magnetic Vortex Core Reversal at Ultralow Critical Velocity

2021 ◽  
Vol 16 (3) ◽  
Author(s):  
Mahdi Mehrnia ◽  
Jeremy Trimble ◽  
Olle Heinonen ◽  
Jesse Berezovsky
Keyword(s):  
Critical Velocity ◽  
Vortex Core ◽  
Magnetic Vortex

scholarly journals Mechanism of Fast Axially Symmetric Reversal of Magnetic Vortex Core

2013 ◽  
Vol 58 (6) ◽  
pp. 596-603 ◽  
Author(s):  
O.V. Pylypovskyi ◽  
◽  
D.D. Sheka ◽  
V.P. Kravchuk ◽  
Yu.B. Gaididei ◽  
...  
Keyword(s):  
Vortex Core ◽  
Magnetic Vortex ◽  
Axially Symmetric

Dynamics of Magnetic Vortex Core Reversal under Pulsed Magnetic Fields

2013 ◽  
Vol 63 (6) ◽  
pp. 666-669
Author(s):  
Je-Ho SHIM ◽  
Hong-Guang PIAO ◽  
Dong-Hyun KIM*
Keyword(s):  
Magnetic Fields ◽  
Vortex Core ◽  
Magnetic Vortex ◽  
Pulsed Magnetic Fields

Switching of magnetic vortex core in elliptical disks by nanosecond field pulses

2014 ◽  
Vol 7 (6) ◽  
pp. 063008 ◽  
Author(s):  
Keisuke Yamada ◽  
Tomonori Sato ◽  
Yoshinobu Nakatani ◽  
Shinya Kasai ◽  
Daichi Chiba ◽  
...  
Keyword(s):  
Vortex Core ◽  
Magnetic Vortex

High-mobility, low-power, and fast-switching organic field-effect transistors with ionic liquids

2008 ◽  
Vol 92 (10) ◽  
pp. 103313 ◽  
Author(s):  
S. Ono ◽  
S. Seki ◽  
R. Hirahara ◽  
Y. Tominari ◽  
J. Takeya
Keyword(s):  
Ionic Liquids ◽  
Low Power ◽  
Field Effect ◽  
Field Effect Transistors ◽  
High Mobility ◽  
Organic Field Effect Transistors ◽  
Fast Switching

scholarly journals Low-amplitude magnetic vortex core reversal by non-linear interaction between azimuthal spin waves and the vortex gyromode

2014 ◽  
Vol 104 (1) ◽  
pp. 012409 ◽  
Author(s):  
Markus Sproll ◽  
Matthias Noske ◽  
Hans Bauer ◽  
Matthias Kammerer ◽  
Ajay Gangwar ◽  
...  
Keyword(s):  
Vortex Core ◽  
Spin Waves ◽  
Magnetic Vortex ◽  
Linear Interaction ◽  
Non Linear ◽  
Low Amplitude

Ultra-fast magnetic vortex core reversal by a local field pulse

2014 ◽  
Vol 104 (5) ◽  
pp. 052414 ◽  
Author(s):  
R. Rückriem ◽  
T. Schrefl ◽  
M. Albrecht
Keyword(s):  
Local Field ◽  
Vortex Core ◽  
Magnetic Vortex ◽  
Field Pulse
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