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MnxGa films with high perpendicular anisotropy, coercivity and energy product have great application potential in ultrahigh-density perpendicular recording, permanent magnets, spin-transfer-torque memory and oscillators, magneto-resistance…

Materials Science · Physics 2016-05-12 Lijun Zhu , Dong Pan , Shuaihua Nie , Jianhua Zhao

Ferromagnetic films of L10-ordered MnGa and MnAl that exhibit giant perpendicular magnetic anisotropy and great controllability in the magnetism and structural disorders show promise not only in the applications in magnetic recording,…

Materials Science · Physics 2017-03-24 L. J. Zhu , J. H. Zhao

Tetragonal Mn$_x$Ga$_{1-x}$ (x=0.70, 0.75) thin films grown on SrTiO$_3$ substrates at different temperatures and thicknesses exhibit perpendicular magnetic anisotropy with coercive fields between 1-2 T. Transmission electron microscopy…

Materials Science · Physics 2015-04-14 J. Karel , F. Casoli , P. Lupo , L. Nasi , S. Fabbrici , L. Righi , F. Albertini , C. Felser

Graphene is attractive for spintronics due to its long spin life time and high mobility. So far only thick and polycrystalline slabs have been used as ferromagnetic electrodes. We report the growth of flat, epitaxial ultrathin Co films on…

We present a comprehensive study of the reversal process of perpendicular magnetization in thin layers of the ferromagnetic semiconductor Ga1-xMnxAs. For this investigation we have purposely chosen Ga1-xMnxAs with a low Mn concentration (x…

Materials Science · Physics 2009-11-11 X. Liu , W. L. Lim , L. V. Titova , M. Dobrowolska , J. K. Furdyna , M. Kutrowski , T. Wojtowicz

Ferromagnetic insulating garnet films with perpendicular magnetic anisotropy (PMA) are of great importance for the applications in spintronics. Tm3Fe5O12 (TmIG) with magnetoelastic anisotropy has been proven to exhibit PMA more easily than…

Materials Science · Physics 2025-02-20 Yufeng Wang , Peng Zhou , Shuai Liu , Yajun Qi , Tianjin Zhang

Antiferromagnetic hexagonal MnTe is a promising material for spintronic devices relying on the control of antiferromagnetic domain orientations. Here we report on neutron diffraction, magnetotransport, and magnetometry experiments on…

This work reports on the structural and magnetic properties of Mn$_{2.7-x}$Fe$_{x}$Ga$_{1.3}$ Heusler films with different Fe content x (0 $\leqslant$ x $\leqslant$ 1.2). The films were deposited heteroepitaxially on MgO single crystal…

Spin gapless semiconductors are interesting novel class of materials by embracing both magnetism and semiconducting. Its potential application in future spintronics requires realization in thin film form. In this letter, we report a…

Materials Science · Physics 2019-08-17 G. Z. Xu , Y. Du , X. M. Zhang , H. G. Zhang , E. K. Liu , W. H. Wang , G. H. Wu

Ferrimagnetic Mn$_2$Fe$_x$Ga $(0.26 \leq x \leq 1.12)$ thin films have been characterised by X-ray diffraction, SQUID magnetometry, X-ray absorption spectroscopy, X-ray magnetic circular dichroism and M\"{o}ssbauer spectroscopy with the aim…

Perpendicular magnetic anisotropy (PMA) is a necessary condition for many spintronic applications like spin-orbit torques switching, logic and memory devices. An important class of magnetic insulators with low Gilbert damping at room…

Materials Science · Physics 2020-03-18 Saeedeh Mokarian Zanjani , Mehmet C. Onbasli

We investigate magnetic anisotropy and magnetization reversal mechanism in chromium telluride thin films grown by molecular beam epitaxy. We report existence of strong perpendicular anisotropy in these thin films, along with a relatively…

Mesoscale and Nanoscale Physics · Physics 2017-05-10 Tanmoy Pramanik , Anupam Roy , Rik Dey , Amritesh Rai , Samaresh Guchhait , Hema CP Movva , Cheng-Chih Hsieh , Sanjay K Banerjee

The magnetization dynamics in nanostructures has been extensively studied in the last decades, and nanomagnetism has evolved significantly over that time, discovering new effects, developing numerous applications, and identifying promising…

Materials Science · Physics 2022-10-03 Mateusz Zelent , Mathieu Moalic , Olav Hellwig , Anjan Barman , Maciej Krawczyk

Perpendicularly magnetized films showing small saturation magnetization, $M_\mathrm{s}$, are essential for spin-transfer-torque writing type magnetoresistive random access memories, STT-MRAMs. An intermetallic compound, {(Mn-Cr)AlGe} of the…

Materials Science · Physics 2021-07-02 Takahide Kubota , Keita Ito , Rie Y Umetsu , Koki Takanashi

We present the fascinating magnetic properties in homogenous noble-metal-free and rare-earth-free L10-Mn1.5Ga epitaxial films on GaAs (001), including ultrahigh perpendicular coercivity remarkably tunable from 8.1 to 42.8 kOe, giant…

Materials Science · Physics 2012-10-09 Lijun Zhu , Shuaihua Nie , Kangkang Meng , Dong Pan , Jianhua Zhao , Houzhi Zheng

Perpendicular magnetization is essential for high-density memory application using magnetic materials. High-spin polarization of conduction electrons is also required for realizing large electric signals from spin-dependent transport…

Perpendicular magnetic anisotropy (PMA) plays an important role in different spintronic devices. The rapid development of spintronics requires a better understanding of the nature and mechanisms of the PMA formation. In our article, we…

Magnetic materials with strong perpendicular magnetic anisotropy are of great interest for the development of nonvolatile magnetic memory and computing technologies due to their high stabilities at the nanoscale. However, electrical…

Materials Science · Physics 2023-04-04 Lijun Zhu

Ferromagnetic films with perpendicular magnetic anisotropy are of interest in spintronics and superconducting spintronics. Perpendicular magnetic anisotropy can be achieved in thin ferromagnetic multilayer structures, when the anisotropy is…

Mesoscale and Nanoscale Physics · Physics 2023-06-01 N. Satchell , S. Gupta , M. Maheshwari , P. M. Shepley , M. Rogers , O. Cespedes , G. Burnell

Large perpendicular magnetic anisotropy (PMA) in transition metal thin films provides a pathway for enabling the intriguing physics of nanomagnetism and developing broad spintronics applications. After decades of searches for promising…

Materials Science · Physics 2018-06-13 Jie-Xiang Yu , Jiadong Zang
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