New spin configurations in nano‐sized magnets near reorientation phase transition

Kisielewski, M.; Maziewski, A.; Zablotskii, V.

doi:10.1002/pssc.200562444

Cited by 5 publications

(6 citation statements)

References 27 publications

(38 reference statements)

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“…F. Near the wire edge, a sinusoidal‐like domain structure with decaying amplitude exists . The m z (0) amplitude determined at the edge is plotted in Fig.…”

Section: Rpts In Laterally Confined Nanostructuresmentioning

confidence: 99%

“…B as a function of d and 1/ Q . Due to the lower demagnetizing field at the edge, a significant shift of the critical Q (or d ) and extended range of out‐of‐plane magnetization state until Q edge , (or d edge ) is observed .…”

Section: Rpts In Laterally Confined Nanostructuresmentioning

confidence: 99%

“…for different diameters of disks. So‐called vortex (V) or patterned leaf (PL – a 3D‐magnetization distribution in which the vector field of in‐plane magnetization resembles a leaf patterned by out‐of‐plane circular domains) states appear for larger diameters, Fig. A, C or B, D, respectively.…”

Section: Rpts In Laterally Confined Nanostructuresmentioning

confidence: 99%

“…In Refs. the effects of lateral nanostructures squeezing on magnetization distributions are discussed and modeled for different values of the Q and d parameters. Thus, the magnetization reorientation transition and actual magnetization distributions can be manipulated by matching up of the magnetic and geometrical parameters of nanoelements .…”

Section: Rpts In Laterally Confined Nanostructuresmentioning

confidence: 99%

See 3 more Smart Citations

Magnetization states and magnetization processes in nanostructures: From a single layer to multilayers

Maziewski

Faßbender

Kisielewski

et al. 2014

Physica Status Solidi (a)

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The results of combined (experimental, analytical, and micromagnetic simulations) studies on the evolution of magnetization states and processes in ultrathin films and multilayered systems are presented. We show ways to manipulate magnetization distributions in ultrathin magnetic single or multilayers by tuning: the thickness of the magnetic layer, the thickness of either the non‐magnetic cap or spacer layer, the magnetic anisotropy, and the geometrical constrictions of the system. In ultrathin magnetic films, both the magnetization distribution and the critical thickness of the magnetization reorientation phase transition (RPT) between perpendicular and in‐plane states can be also controlled by post‐growth treatments, e.g., by either ion or light irradiation. By changing the geometrical parameters of the nanostructure, as well as by an applied external magnetic field, one can tune magnetic domain sizes in a giant range (of a few orders of magnitude) and induce the RPT. Transitions between two‐ and three‐dimensional magnetization distributions are discussed.

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“…F. Near the wire edge, a sinusoidal‐like domain structure with decaying amplitude exists . The m z (0) amplitude determined at the edge is plotted in Fig.…”

Section: Rpts In Laterally Confined Nanostructuresmentioning

confidence: 99%

Section: Rpts In Laterally Confined Nanostructuresmentioning

confidence: 99%

Section: Rpts In Laterally Confined Nanostructuresmentioning

confidence: 99%

Section: Rpts In Laterally Confined Nanostructuresmentioning

confidence: 99%

See 2 more Smart Citations

Magnetization states and magnetization processes in nanostructures: From a single layer to multilayers

Maziewski

Faßbender

Kisielewski

et al. 2014

Physica Status Solidi (a)

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“…Near the edges, magnetization direction follows the shape of the nanomagnet at the cost of exchange energy. 23,26 A vortex structure is another configuration frequently encountered in disc-shaped nanomagnets. 27 Finally, the biggest dots adopt a multidomain state to reduce the energy originating from demagnetization.…”

mentioning

confidence: 99%

Influence of shape, size and internal structure on magnetic properties of core-edge nanodots with perpendicular anisotropy

Milińska

Wawro

2014

Journal of Applied Physics

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The properties of perpendicularly magnetized isolated nanodots different in shape, size, and internal structure are simulated by micromagnetic calculations. Investigated dots are magnetically uniform, or they are composed of a core and an edge characterized by different anisotropystronger or weaker than that of the core. Based on calculated hysteresis loops, we discuss in details the magnetization reversal processes, stability of magnetic structures, and spin configurations in the dots. V C 2014 AIP Publishing LLC. [http://dx.

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Influence of the lattice discreteness on magnetic ordering in nanostructures and nanoarrays

Vedmedenko¹

2007

Physica Status Solidi (b)

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.+ aThe article attempts to analyze the effect of lattice discreteness on the magnetic ordering in nanostructures and nanoarrays. The discussion starts with a basic introduction of the theoretical methods for the description of the magnetic ordering. Next it is shown that the discrete nature of an atomic lattice may lead to the size-driven reorientation of magnetization in nanoparticles, i.e., the magnetization direction can be changed by shrinking the lateral size, keeping the thickness fixed. It is demonstrated that in finite nanomagnets the shape anisotropy can be divided into the discrete and continuum contributions. Then the orientation of magnetic domain walls in low-symmetry objects is discussed. It is shown theoretically that in nanomagnets of monolayer thickness the mechanism of the orientation of domain walls is different from that of bulk systems and is mainly determined by the discreteness of the atomic lattice and the exchange energy. In the last part the theoretical study of magnetostatically interacting nanoarrays is presented. Special attention is paid to the influence of the underlaying lattice symmetry and the higher order multipolar terms on the magnetic ordering. It is demonstrated that the multipole-multipole interactions lead to an enhancement/decrease of the coercivity in arrays with in-plane/out-of-plane magnetization, respectively. In each section of the manuscript the agreement between the theory and recent experimental results is analyzed.

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New spin configurations in nano‐sized magnets near reorientation phase transition

Cited by 5 publications

References 27 publications

Magnetization states and magnetization processes in nanostructures: From a single layer to multilayers

Magnetization states and magnetization processes in nanostructures: From a single layer to multilayers

Influence of shape, size and internal structure on magnetic properties of core-edge nanodots with perpendicular anisotropy

Influence of the lattice discreteness on magnetic ordering in nanostructures and nanoarrays

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