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Large magnetocrystalline anisotropy in bilayer transition metal phases from first-principles full-potential calculations - art. no. 144409

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TLDR
In this paper, the local spin density approximation with first-principles full-potential linear muffin-tin orbital calculations including orbital polarization (OP) correction is presented. And the magnetic anisotropy is studied.
Abstract
The computational framework of this study is based on the local-spin-density approximation with first-principles full-potential linear muffin-tin orbital calculations including orbital polarization (OP) correction. We have studied the magnetic anisotropy

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Dissertation

Magnetic anisotropy and spin crossover at molecule-metal interfaces

TL;DR: In this paper, the magnetisme d'interfaces ferromagnetique-organique en utilisant different types of molecules and different metaux ferromagnetic.
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Origin of the spin reorientation transitions in antiferromagnetic MnPt-based alloys

TL;DR: In this paper, the magnetocrystalline anisotropy in these alloys was studied using first-principles calculations based on the coherent potential approximation and the disordered local moment method.

Spin-orbit torques in L1$_0$-FePt/Pt thin films driven by electrical and thermal currents

Abstract: Using the linear response formalism for the spin-orbit torque (SOT) we compute from first principles the SOT in a system of two layers of L1$_0$-FePt(001) deposited on an fcc Pt(001) substrate of varying thickness. We find that at room temperature the values of the SOTs that are even and odd with respect to magnetization generally lie in the range of values measured and computed for Co/Pt bilayers. We also observe that the even SOT is much more robust with respect to changing the number of layers in the substrate, and as a function of energy it follows the general trend of the even SOT exerted by the spin Hall current in fcc Pt. The odd torque, on the other hand, is strongly affected by modification of the electronic structure for a specific energy window in the limit of very thin films. Moreover, taking the system at hand as an example, we compute the values of the thermal spin-orbit torque (T-SOT). We predict that the gradients of temperature which can be experimentally created in this type of systems will cause a detectable torque on the magnetization. We also underline the correlation between the even T-SOT and the spin Nernst effect, thus motivating a more intensive experimental effort aimed at observation of both phenomena.

Magnetic and Electronic Structures of FePtCu Ternary Ordered Alloy

T. Kai
TL;DR: In this paper, the microscopic structure of FePtCu ternary ordered alloys from both theoretical and experimental points of view was investigated, based on the full-potential linear augmented plane wave method.
References
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Journal ArticleDOI

X-ray circular-dichroism as a probe of orbital magnetization

TL;DR: A new magneto-optical sum rule is derived for circular magnetic dichroism in the x-ray region (CMXD) and applications are discussed to transition-metal and rare-earth magnetic systems.
Journal ArticleDOI

X-ray circular-dichroism and local magnetic-fields

TL;DR: Sum rules are derived for the circular dichroic response of a core line (CMXD) that relate the intensity of the CMXD signal to the ground-state expectation value of the magnetic field operators (orbital, spin, and magnetic dipole) of the valence electrons.
Journal ArticleDOI

Experimental confirmation of the X-ray magnetic circular dichroism sum rules for iron and cobalt.

TL;DR: The magnetic moments determined from the integrals of these spectra are found to be in excellent agreement (within 3%) for the orbital to spin moment ratios, and in good agreement for the individual moments, with those obtained from Einstein--de Haas gyromagnetic ratio measurements.
Journal ArticleDOI

Magnetic anisotropy in metallic multilayers

TL;DR: In this paper, a comprehensive survey of experimental studies on the magnetic anisotropy in metallic multilayers containing Fe, Co or Ni is presented and commented on, with the help of some dedicated experimental studies.
Journal ArticleDOI

Anisotropie magnétique superficielle et surstructures d'orientation

TL;DR: In this article, the authors propose an energie magnetocristalline and magnetoelastique of a corps ferromagnetique comme la somme de termes elementaires relatifs chacun a liaison, c'est-a-dire a couple of deux atomes proches voisins.
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