Control of the stripe domain pattern in <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" altimg="si13.gif" overflow="scroll"><mml:mrow><mml:mtext>L</mml:mtext><mml:msub><mml:mrow><mml:mn>1</mml:mn></mml:mrow><mml:mrow><mml:mn>0</mml:mn></mml:mrow></mml:msub></mml:mrow></mml:math>-ordered FePd thin films

Stellhorn, Annika; Kentzinger, Emmanuel; Brückel, Thomas; Fu, Zhendong; Sarkar, Anirban; Pipich, Vitaliy; Schöffmann, Patrick; Abuladze, G.; Waschk, Markus; Schröder, Sonja

doi:10.1016/j.jmmm.2018.12.059

Cited by 5 publications

(6 citation statements)

References 11 publications

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“…If Q < 1, the magnetization easy axis of the film with SD structure lays in-plane in the film. If Q > 1, K ⊥ overcomes demagnetizing energy, the magnetization easy axis of the system is perpendicular to the film surface [27]. Previous studies show [22,23,28], that the change of PMA might break the energy balance of the system and further cause the re-alignment of SD.…”

Section: Introductionmentioning

confidence: 97%

Perpendicular magnetization anisotropy induced dynamical coherence reduction in stripe domain film

Li¹,

Song²,

Wang³

et al. 2022

J. Phys.: Condens. Matter

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We investigated the magnetization dynamics of the 350 nm Permalloy film with in plane domain (IPD), stripe domain (SD), and labyrinth domain (LD) patterns. Experimental and micromagnetic simulation results showed that the change in magnetic domain structure from IPD to LD was due to the increasing perpendicular magnetic anisotropy (PMA) of the film. The magnetization dynamics indicated that the resonant modes of the film strongly depended on the magnetic domain structure. IPD films presented a uniform precession mode. The film with well-regular SD exhibited clear acoustic and optical resonance modes, and the formation of LD suppressed both resonance modes. Finally, the dynamics of magnetization dependent on the domain structure in these films were discussed by using the phenomenological resonance models.

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Section: Introductionmentioning

confidence: 97%

Perpendicular magnetization anisotropy induced dynamical coherence reduction in stripe domain film

Li¹,

Song²,

Wang³

et al. 2022

J. Phys.: Condens. Matter

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“…In films with the crystalline c axis parallel to the surface normal, this leads to the formation of two set of domains with their magnetization respectively parallel or antiparallel to the film normal [8]. The specific forms of domains observed depends strongly on the way the film is grown, and the strength of the magneto-crystalline anisotropy energy Ema and shape anisotropy energy Esh can be effectively controlled [9][10][11]. These terms then determine the domain width, the domain wall width, the size of any closure domains, and the stray field strength associated with the magnetic domains.…”

Section: Magnetic Domains and Domain Wallsmentioning

confidence: 99%

“…In combination with polarization analysis, GISANS can provide insight into both in-and out-of-plane oriented chiral magnetic domain walls, and is therefore a logical choice for studying domain structures of the type that can be engineered into FePd thin films [11]. The neutron beam comes in with an angle close to the critical angle for total external reflection, 𝜃c.…”

Section: Polarized Gisansmentioning

confidence: 99%

“…This distribution is used in our model. The reasons for the preferential in-plane domain orientation are not germane to this article, but are discussed elsewhere [10,11]. where 𝐹 ̂𝑓𝑖 = 𝐹 ̂𝑓𝑖 (𝑸 ⃗⃗ // ) is the scattering amplitude operator (in the space of spin states) and 𝐹 ̂𝑓𝑖 † its Hermitian conjugate.…”

Section: Description Of the Dwba Simulation Of Polarized Gisans Measu...mentioning

confidence: 99%

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Neutron adiabaticity and its impact on data analysis, illustrated for polarized GISANS

Stellhorn,

Lee,

Kentzinger

et al. 2023

EPJ Web Conf.

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The significance of neutron spin adiabaticity in the data analysis of polarized Grazing Incidence Small Angle Neutron Scattering (GISANS) is discussed, with the aim of minimizing the number of simulation parameters of complex magnetic models within the neutron scattering cross-section. We illustrate how an estimate of the neutron polarization direction and adiabaticity can be obtained by magnetic field and neutron ray-tracing simulations and compare the results with measurements of the magnetic field map for the beamline used in the GISANS experiment. We show how small deviations from the neutron polarization direction with respect to the magnetic field vector at the sample position significantly affect the data analysis, and how this can be considered within the magnetic model of the scattering cross section using the Distorted Wave Born Approximation.

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“…demonstrated reading operation in NiFe nanowire (memory element) using an IP reading element [123]. Later, Romdhane et al reported the reading in the PMA racetrack using CoFeB/MgO/Ta-based MTJ [124].…”

Section: Reading the Informationmentioning

confidence: 99%

Investigations of low dimensional magnetic structures for memory and storage device applications

Kumar¹

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Control of the stripe domain pattern in L10-ordered FePd thin films

Cited by 5 publications

References 11 publications

Perpendicular magnetization anisotropy induced dynamical coherence reduction in stripe domain film

Perpendicular magnetization anisotropy induced dynamical coherence reduction in stripe domain film

Neutron adiabaticity and its impact on data analysis, illustrated for polarized GISANS

Investigations of low dimensional magnetic structures for memory and storage device applications

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