One-dimensional dynamics of domain walls in a three-layer ferromagnetic structure with different parameters of magnetic anisotropy and exchange of the layers

2014 ◽  
Vol 115 (2) ◽  
pp. 117-123 ◽  
Author(s):  
E. G. Ekomasov ◽  
R. R. Murtazin ◽  
V. N. Nazarov
Keyword(s):  
Magnetic Anisotropy ◽  
Domain Walls ◽  
One Dimensional ◽  
Ferromagnetic Structure

Resonant Dynamics of the Domain Walls in Multilayer Ferromagnetic Structure

2015 ◽  
Vol 233-234 ◽  
pp. 51-54 ◽  
Author(s):  
Evgeniy G. Ekomasov ◽  
Azamat M. Gumerov ◽  
Ramil R. Murtazin ◽  
Roman V. Kudryavtsev ◽  
Andrey E. Ekomasov ◽  
...  
Keyword(s):  
Magnetic Anisotropy ◽  
Domain Walls ◽  
Magnetic Inhomogeneities ◽  
Flat Layer ◽  
Ferromagnetic Structure ◽  
Resonant Dynamics ◽  
Thick Layers

The domain walls dynamics and generation and evolution of magnetic inhomogeneities of soliton type, emerging in a thin flat layer with the parameters of the magnetic anisotropy, which are different from other two thick layers of the five-layer ferromagnetic structure, were investigated.

Excitation and Dynamics of Domain Walls in Three-Layer Ferromagnetic Structure with Different Parameters of the Magnetic Anisotropy and Exchange

2016 ◽  
Vol 845 ◽  
pp. 195-198 ◽  
Author(s):  
Evgeniy Ekomasov ◽  
Ramil Murtazin ◽  
Oksana Bogomazova ◽  
Vladimir Nazarov
Keyword(s):  
Magnetic Anisotropy ◽  
Domain Walls ◽  
Spatial Modulation ◽  
Internal Oscillation ◽  
Magnetic Inhomogeneity ◽  
Ferromagnetic Structure ◽  
Oscillation Modes ◽  
Modulation Region ◽  
Pass Through ◽  
Minimum Velocity

The dynamics of domain walls (DW) in three-layered ferromagnetic was studied. The minimum velocity required for a DW to pass through the spatial modulation region was calculated. The excitation of DW internal oscillation modes and localized magnetic inhomogeneity of breather type was analyzed.

On-Surface Synthesis of One-Dimensional Coordination Polymers with Tailored Magnetic Anisotropy

2021 ◽  
Author(s):  
Benjamin Mallada ◽  
Piotr Błoński ◽  
Rostislav Langer ◽  
Pavel Jelínek ◽  
Michal Otyepka ◽  
...  
Keyword(s):  
Magnetic Anisotropy ◽  
Coordination Polymers ◽  
One Dimensional

scholarly journals One-dimensional in-plane edge domain walls in ultrathin ferromagnetic films

Nonlinearity ◽  
2018 ◽  
Vol 31 (3) ◽  
pp. 728-754 ◽  
Author(s):  
Ross G Lund ◽  
Cyrill B Muratov ◽  
Valeriy V Slastikov
Keyword(s):  
Domain Walls ◽  
One Dimensional ◽  
Ferromagnetic Films

Domain walls in one-dimensional 3-periodic structure

1997 ◽  
Vol 203 (1) ◽  
pp. 335-347 ◽  
Author(s):  
Takeshi Shigenari ◽  
Aleksey A. Vasiliev ◽  
Sergey V. Dmitriev ◽  
Kohji Abe
Keyword(s):  
Periodic Structure ◽  
Domain Walls ◽  
One Dimensional

Ground state of one-dimension repulsing particles on disordered lattice

2014 ◽  
Vol 25 (08) ◽  
pp. 1450028 ◽  
Author(s):  
L. A. Pastur ◽  
V. V. Slavin ◽  
A. A. Krivchikov
Keyword(s):  
Ground State ◽  
Domain Walls ◽  
Host Lattice ◽  
One Dimension ◽  
Weak Disorder ◽  
Interacting Particles ◽  
One Dimensional ◽  
Lattice Disorder ◽  
Disordered Lattice ◽  
The Mean

The ground state (GS) of interacting particles on a disordered one-dimensional (1D) host-lattice is studied by a new numerical method. It is shown that if the concentration of particles is small, then even a weak disorder of the host-lattice breaks the long-range order of Generalized Wigner Crystal (GWC), replacing it by the sequence of blocks (domains) of particles with random lengths. The mean domains length as a function of the host-lattice disorder parameter is also found. It is shown that the domain structure can be detected by a weak random field, whose form is similar to that of the ground state but has fluctuating domain walls positions. This is because the generalized magnetization corresponding to the field has a sufficiently sharp peak as a function of the amplitude of fluctuations for small amplitudes.

scholarly journals Nanoscale strain engineering of giant pseudo-magnetic fields, valley polarization, and topological channels in graphene

2020 ◽  
Vol 6 (19) ◽  
pp. eaat9488 ◽  
Author(s):  
C.-C. Hsu ◽  
M. L. Teague ◽  
J.-Q. Wang ◽  
N.-C. Yeh
Keyword(s):  
Magnetic Fields ◽  
Domain Walls ◽  
Quantum Hall ◽  
Strain Engineering ◽  
Scanning Tunneling ◽  
Monolayer Graphene ◽  
Tunneling Microscopy ◽  
One Dimensional ◽  
Valley Polarization ◽  
Topological States

The existence of nontrivial Berry phases associated with two inequivalent valleys in graphene provides interesting opportunities for investigating the valley-projected topological states. Examples of such studies include observation of anomalous quantum Hall effect in monolayer graphene, demonstration of topological zero modes in “molecular graphene” assembled by scanning tunneling microscopy, and detection of topological valley transport either in graphene superlattices or at bilayer graphene domain walls. However, all aforementioned experiments involved nonscalable approaches of either mechanically exfoliated flakes or atom-by-atom constructions. Here, we report an approach to manipulating the topological states in monolayer graphene via nanoscale strain engineering at room temperature. By placing strain-free monolayer graphene on architected nanostructures to induce global inversion symmetry breaking, we demonstrate the development of giant pseudo-magnetic fields (up to ~800 T), valley polarization, and periodic one-dimensional topological channels for protected propagation of chiral modes in strained graphene, thus paving a pathway toward scalable graphene-based valleytronics.

scholarly journals Slow Magnetic Relaxation in a One-Dimensional Coordination Polymer Constructed from Hepta-Coordinate Cobalt(II) Nodes

2020 ◽  
Vol 6 (4) ◽  
pp. 45
Author(s):  
Amit Kumar Mondal ◽  
Arpan Mondal ◽  
Sanjit Konar
Keyword(s):  
Magnetic Susceptibility ◽  
Coordination Polymer ◽  
Magnetic Anisotropy ◽  
Ab Initio Calculations ◽  
Direct Current ◽  
Magnetic Relaxation ◽  
Relaxation Processes ◽  
Ac Magnetic Susceptibility ◽  
One Dimensional ◽  
Slow Magnetic Relaxation

A one-dimensional coordination polymer was synthesized employing hepta-coordinate CoII as nodes and dicyanamide as linkers. Detailed direct current (DC) and alternating current (AC) magnetic susceptibility measurements reveal the presence of field-induced slow magnetic relaxation behavior of the magnetically isolated seven-coordinate CoII center with an easy-plane magnetic anisotropy. Detailed ab initio calculations were performed to understand the magnetic relaxation processes. To our knowledge, the reported complex represents the first example of slow magnetic relaxation in a one-dimensional coordination polymer constructed from hepta-coordinate CoII nodes and dicyanamide linkers.

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