Strain induced exchange-spring magnetic behavior in amorphous (TbDy)Fe2 thin films

Mohanchandra, K. P.; Prikhodko, Sergey V.; Wang, K. L.; Carman, Gregory P.

doi:10.1063/1.4974964

Cited by 5 publications

(2 citation statements)

References 21 publications

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“…Strain-mediated multiferroics provides a scalable and energy-efficient platform to conduct localized and deterministic magnetization motion [14][15][16][17]. This system consists of a piezoelectric substrate [18] and a magnetoelastic device [19][20][21]. Sohn et al first experimentally proved the concept that strainmediated multiferroics could manipulate magnetic particles only by applying voltage [22].…”

Section: Introductionmentioning

confidence: 99%

Voltage manipulation of magnetic particles using multiferroics

Cai¹,

Sablik²,

Khojah³

et al. 2020

J. Phys. D: Appl. Phys.

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Precise control and manipulation of nano-beads have various applications, e.g. cell sorter, 3D printing and nano-motors. In this paper we present an approach in which we use voltage on a piezolecetric substrate in order to reorient the magnetization of a nano-disk. In turn this magnetization drives the dynamic of the nano-beads. This is an energy efficient method to control the nano-beads motion since only voltage is applied to the substrate. The mechanism consists of a Ni disk and three pairs of surface electrodes placed on a PZT substrate. By controlling the voltage applied on the different pairs of electrodes, the magnetization of the Ni disk will rotate with constant angular velocity. The rotating magnetization will then generate magnetic force on the soft-magnetic nano-beads driving the motion. For the beads, full 3D dynamics consider both translation and rotation and the forces considered are magnetic, drag, friction and adhesion. With this model we are able to have a realistic description for the particle behavior.

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Section: Introductionmentioning

confidence: 99%

Voltage manipulation of magnetic particles using multiferroics

Cai¹,

Sablik²,

Khojah³

et al. 2020

J. Phys. D: Appl. Phys.

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“…Rare earth-transition metal (R-TM) compounds have attracted much interest due to the remarkable magnetic properties derived from the unique f-d orbital electronic structure [1][2][3][4]. Among these materials, SmCo alloy films have recently gained attention due to the large coercivity and high magnetic anisotropy energy, which open a path to new permanent magnetic materials [5].…”

Section: Introductionmentioning

confidence: 99%

Enhanced magnetostriction derived from magnetic single domain structures in cluster-assembled SmCo films

et al. 2017

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Cluster-assembled SmCo alloy films were prepared by low energy cluster beam deposition. The structure, magnetic domain, magnetization, and magnetostriction of the films were characterized. It is shown that the as-prepared films are assembled in compact and uniformly distributed spherical cluster nanoparticles, most of which, after vacuum in situ annealing at 700 K, aggregated to form cluster islands. These cluster islands result in transformations from superparamagnetic states to magnetic single domain (MSD) states in the films. Such MSD structures contribute to the enhanced magnetostrictive behaviors with a saturation magnetostrictive coefficient of 160 × 10 in comparison to 105 × 10 for the as-prepared films. This work demonstrates candidate materials that could be applied in nano-electro-mechanical systems, low power information storage, and weak magnetic detecting devices.

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