scholarly journals Domain wall mobility engineering by a perpendicular magnetic field in microwires with a gradient of perpendicular anisotropy

AIP Advances ◽  
2021 ◽  
Vol 11 (3) ◽  
pp. 035014
Author(s):  
L. Fecova ◽  
K. Richter ◽  
R. Varga
Keyword(s):  
Magnetic Field ◽  
Domain Wall ◽  
Perpendicular Magnetic Field ◽  
Perpendicular Anisotropy ◽  
Domain Wall Mobility ◽  
Wall Mobility

scholarly journals Elucidation of the Mechanism for Maintaining Ultrafast Domain Wall Mobility Over a Wide Temperature Range

2021 ◽  
Author(s):  
Sina Ranjbar ◽  
Satoshi Sumi ◽  
Sota Kambe ◽  
Pham Van Thach ◽  
Kenji Tanabe ◽  
...  
Keyword(s):  
Magnetic Field ◽  
External Magnetic Field ◽  
Domain Wall ◽  
Wide Temperature Range ◽  
Pulse Current ◽  
Short Pulse ◽  
Temperature Range ◽  
Domain Wall Mobility ◽  
Wall Mobility ◽  
Magnetic Wires

Abstract To realize a data rate of 20 Gbps in the communication standard 5G with a racetrack memory, it is crucial to stably recognize a domain-wall (DW) velocity (vDW) of 1200 m/s when the minimum bit length is 60 nm. However, general vDW is as slow as about 100 m/s. Recent reports indeed showed that the fast DW motion occurs using an in-plane external magnetic field however, this mechanism is unsuitable because the rear-edge vDW decelerated, which contrary to the front-edge of DW velocity. Therefore, we designed magnetic wires by bringing the g values of rare-earth and transition-metals close to each other and suppressing the Joule heat generation distribution due to short pulse current, we successfully demonstrated the vDW of 1200 m/s in a wide temperature range without using an external magnetic field. Moreover, the current density (J) is low, and the DW mobility (vDW/J) is significantly improved 10-times over a wide temperature range compared to other reports.

scholarly journals Domain wall mobility and roughening in doped ferroelectric hexagonal manganites

2020 ◽  
Vol 2 (3) ◽  
Author(s):  
D. R. Småbråten ◽  
T. S. Holstad ◽  
D. M. Evans ◽  
Z. Yan ◽  
E. Bourret ◽  
...  
Keyword(s):  
Domain Wall ◽  
Domain Wall Mobility ◽  
Hexagonal Manganites ◽  
Wall Mobility

scholarly journals Giant conductivity of mobile non-oxide domain walls

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
S. Ghara ◽  
K. Geirhos ◽  
L. Kuerten ◽  
P. Lunkenheimer ◽  
V. Tsurkan ◽  
...  
Keyword(s):  
Magnetic Fields ◽  
Domain Wall ◽  
Domain Walls ◽  
Building Blocks ◽  
External Fields ◽  
Tail Domain ◽  
Oxide Electronics ◽  
Domain Wall Mobility ◽  
Conductance Changes ◽  
Wall Mobility

AbstractAtomically sharp domain walls in ferroelectrics are considered as an ideal platform to realize easy-to-reconfigure nanoelectronic building blocks, created, manipulated and erased by external fields. However, conductive domain walls have been exclusively observed in oxides, where domain wall mobility and conductivity is largely influenced by stoichiometry and defects. Here, we report on giant conductivity of domain walls in the non-oxide ferroelectric GaV4S8. We observe conductive domain walls forming in zig-zagging structures, that are composed of head-to-head and tail-to-tail domain wall segments alternating on the nanoscale. Remarkably, both types of segments possess high conductivity, unimaginable in oxide ferroelectrics. These effectively 2D domain walls, dominating the 3D conductance, can be mobilized by magnetic fields, triggering abrupt conductance changes as large as eight orders of magnitude. These unique properties demonstrate that non-oxide ferroelectrics can be the source of novel phenomena beyond the realm of oxide electronics.

Domain-wall mobility in irradiated triglycine sulfate

1998 ◽  
Vol 40 (7) ◽  
pp. 1201-1203 ◽  
Author(s):  
L. N. Kamysheva ◽  
O. M. Golitsyna ◽  
T. N. Podgornaya
Keyword(s):  
Domain Wall ◽  
Triglycine Sulfate ◽  
Domain Wall Mobility ◽  
Wall Mobility

Domain wall mobility in rapidly solidified ultrathin amorphous wires

2013 ◽  
Vol 113 (17) ◽  
pp. 17A304 ◽  
Author(s):  
T.-A. Óvári ◽  
H. Chiriac
Keyword(s):  
Domain Wall ◽  
Amorphous Wires ◽  
Domain Wall Mobility ◽  
Wall Mobility ◽  
Rapidly Solidified

Domain wall mobility measurements in magneto-optic media

1994 ◽  
Vol 30 (6) ◽  
pp. 4401-4403 ◽  
Author(s):  
Mann Du ◽  
M.H. Kryder
Keyword(s):  
Domain Wall ◽  
Domain Wall Mobility ◽  
Wall Mobility ◽  
Magneto Optic

Domain Wall Mobility in Epitaxial Garnet Films

1973 ◽  
Author(s):  
G. P. Vella-Coleiro ◽  
Hugh C. Wolfe ◽  
C. D. Graham ◽  
J. J. Rhyne
Keyword(s):  
Domain Wall ◽  
Garnet Films ◽  
Domain Wall Mobility ◽  
Wall Mobility

Domain-wall mobility in orthoferrite crystals grown by float-zone technique

1971 ◽  
Vol 7 (3) ◽  
pp. 470-471 ◽  
Author(s):  
A. Marsh ◽  
R. Fairholme ◽  
G. Gill
Keyword(s):  
Domain Wall ◽  
Float Zone ◽  
Domain Wall Mobility ◽  
Wall Mobility

scholarly journals Domain wall mobility in nanowires: Transverse versus vortex walls

2004 ◽  
Vol 69 (6) ◽  
Author(s):  
R. Wieser ◽  
U. Nowak ◽  
K. D. Usadel
Keyword(s):  
Domain Wall ◽  
Domain Wall Mobility ◽  
Wall Mobility
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