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Related papers: CoFeB/MgO/CoFeB structures with orthogonal easy ax…

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Controlled crystallization of amorphous alloys offers a powerful route to tailor magnetic and structural properties at the nanoscale. Thin films of CoFeB alloy are essential for the development of various spintronic devices. The…

Materials Science · Physics 2025-12-22 P. Shvets , G. Kirichuk , V. Salnikov , J. O'Connell , V. Rodionova , A. Goikhman , K. Maksimova

Rare-earth (RE) atoms on top of 2D materials represent an interesting platform with the prospect of tailoring the magnetic anisotropy for practical applications. Here, we investigate the ground state and magnetic properties of selected…

Mesoscale and Nanoscale Physics · Physics 2024-07-25 Johanna P. Carbone , Juba Bouaziz , Gustav Bihlmayer , Stefan Blügel

We analyzed the enhancement of the Gilbert damping constant due to spin pumping in non-collinear ferromagnet / non-magnet / ferromagnet trilayer systems. We show that the Gilbert damping constant depends both on the precession angle of the…

Mesoscale and Nanoscale Physics · Physics 2009-11-13 Tomohiro Taniguchi , Hiroshi Imamura

We have studied the magnetic layer thickness dependence of the orbital magnetic moment in magnetic heterostructures to identify contributions from interfaces. Three different heterostructures, Ta/CoFeB/MgO, Pt/Co/AlO$_x$ and Pt/Co/Pt, which…

Graphyne is a porous two-dimensional carbon allotrope of graphene that possesses interesting physical properties, including non-null bandgap. It is composed of carbon hexagonal rings or carbon-carbon bonds connected by acetylenic chains.…

Materials Science · Physics 2025-01-20 Guilherme B. Kanegae , Alexandre F. Fonseca

We report strong damping enhancement in a 200 nm thick yttrium iron garnet (YIG) film due to spin inhomogeneity at the interface. The growth-induced thin interfacial gadolinium iron garnet (GdIG) layer antiferromagnetically (AFM) exchange…

Materials Science · Physics 2022-08-17 Ravinder Kumar , B. Samantaray , Shubhankar Das , Kishori Lal , D. Samal , Z. Hossain

The linewidth of antiferromagnetic resonance (AFMR) is found to be significantly broader than that of ferromagnetic resonance (FMR), even when the intrinsic Gilbert damping parameter is the same for both systems. We investigate the origin…

Mesoscale and Nanoscale Physics · Physics 2025-02-20 Yutian Wang , Jiang Xiao

Damping in magnetization dynamics characterizes the dissipation of magnetic energy and is essential for improving the performance of spintronics-based devices. While the damping of ferromagnets has been well studied and can be artificially…

Materials Science · Physics 2017-11-15 Qian Liu , H. Y. Yuan , Ke Xia , Zhe Yuan

Accurate density-functional based calculations have been performed on the Co_4(hmp)_4(CH_3OH)_4Cl_4 molecular magnet where hmp is deprotonated hydroxymethyl pyridine. In addition to the experimentally observed staggered geometry, we…

Materials Science · Physics 2009-11-07 Tunna Baruah , Mark R. Pederson

Measurements of the magnetic susceptibility of Fe/W(110) films with thickness in the range of 1.6 to 2.4 ML Fe, show that in addition to the large response along the easy axis associated with the Curie transition, there is a much smaller,…

Mesoscale and Nanoscale Physics · Physics 2016-10-21 K. Fritsch , R. D'Ortenzio , D. Venus

Understanding and controlling the interfacial magnetic properties of ferromagnetic thin films are crucial for spintronic device applications. However, using conventional magnetometry, it is difficult to detect them separately from the bulk…

Materials Science · Physics 2017-06-21 Le Duc Anh , Noboru Okamoto , Munetoshi Seki , Hitoshi Tabata , Masaaki Tanaka , Shinobu Ohya

We present a systematic phenomenological description of Gilbert damping in two-sublattice magnets. Our theory covers the full range of materials from ferro- via ferri- to antiferromagnets. Following a Rayleigh dissipation functional…

Materials Science · Physics 2018-11-08 Akashdeep Kamra , Roberto E. Troncoso , Wolfgang Belzig , Arne Brataas

We have made a likelihood statistical analysis of the angular correlations in the {\it COBE}-DMR two-year sky maps by Monte Carlo simulation of the temperature fluctuations. We assume an open universe and consider as primordial power…

Astrophysics · Physics 2015-06-24 L. Cayon , E. Martinez-Gonzalez , J. L. Sanz , N. Sugiyama , S. Torres

A systematic experimental study of Gilbert damping is performed via ferromagnetic resonance for the disordered crystalline binary 3d transition metal alloys Ni-Co, Ni-Fe and Co-Fe over the full range of alloy compositions. After accounting…

We present a unified theory of magnetic damping in itinerant electron ferromagnets at order $q^2$ including electron-electron interactions and disorder scattering. We show that the Gilbert damping coefficient can be expressed in terms of…

Mesoscale and Nanoscale Physics · Physics 2009-11-13 E. M. Hankiewicz , G. Vignale , Y. Tserkovnyak

Magnetization dynamics are strongly influenced by damping. An effective damping constant {\alpha}eff is often determined experimentally from the spectral linewidth of the free induction decay of the magnetization after the system is excited…

Mesoscale and Nanoscale Physics · Physics 2016-01-20 Amir Capua , See-hun Yang , Timothy Phung , Stuart S. P. Parkin

A systematic structural study of the Fe2Mo3O8 system as a function of pressure, temperature, and magnetic field reveals that the P63mc space group of this material remains stable for a broad range of these parameters. No changes are seen in…

Iron-based layered systems are of great interest because of their ability to tune effective material parameters such as magnetic anisotropy energy (MAE). The influence of the crystallographic structure of Fe, its thickness, and the presence…

Materials Science · Physics 2023-12-05 Joanna Marciniak , Mirosław Werwiński , Justyna Rychły-Gruszecka

We study interfacial magnetocrystalline anisotropies in various Fe/semiconductor heterostructures by means of first-principles calculations. We find that many of those systems show perpendicular magnetic anisotropy (PMA) with a positive…

Materials Science · Physics 2017-11-03 Keisuke Masuda , Shinya Kasai , Yoshio Miura , Kazuhiro Hono

CeRh$_6$Ge$_4$ is an unusual example of a stoichiometric heavy fermion ferromagnet, which can be cleanly tuned by hydrostatic pressure to a quantum critical point. In order to understand the origin of this anomalous behavior, we have…

Strongly Correlated Electrons · Physics 2021-11-01 J. W. Shu , D. T. Adroja , A. D. Hillier , Y. J. Zhang , Y. X. Chen , B. Shen , F. Orlandi , H. C. Walker , Y. Liu , C. Cao , F. Steglich , H. Q. Yuan , M. Smidman
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