Electric-field effects on magnetic anisotropy in Pd/Fe/Pd(0 0 1) surface

Abstract

Abstract. Electric-field (EF) effects have been studied on magnetic anisotropy in the metallic surfaces Pt/Fe/Pt(001) and Pd/Fe/Pd(001) by means of the first-principles electronic structure calculation which employs the generalized gradient approximation. The variation of anisotropy energy with respect to the EF is found to be opposite to each other. The modulus rate of the variation is larger by a few factors in the Pt substrate than in the Pd one. These results agree qualitatively well with the available experimental data. The electronic structures are presented and the origins in EF effects are discussed along a line of the second perturbative fashion.

Voltage control of magnetic anisotropy in epitaxial Ru/Co2FeAl/MgO heterostructures

“…The sign of the VCMA effect is expected to be sensitive to the electronic structures near the interfaces of a FM layer. Especially, the electronic structures of nonmagnetic (NM) layers adjacent to the FM layer can determine the signs of the VCMA effect, which had been demonstrated by first principles calculations in Pt/Fe/Pt and Pd/Fe/Pd structures3738. Therefore, the difference in the ferromagnetic material (CFA and CoFeB) and/or crystal structure (e.g., polycrystalline hcp Ru and single crystalline Ru(023) buffer layers) may be responsible for the discrepancy of the signs.…”

Surface structure effect on the magnetic anisotropy of Co/Pd (001) thin film: A first principles study

“…The states of the Pd-rich A and Co-rich B in Fig. 4 were compared around the Fermi level in the band structure because the occupied and unoccupied states around the Fermi level are important [42,44,45,46]. In Fig.…”

Magnetoelectric effect in Fe linear chains on Pt(001)

“…18 Furthermore, the effect of electric field on magnetic anisotropy energy (MAE) has been studied for Fe monolayers on Pd(001) and Pt(001) surfaces, and it has been found that the magnetic anisotropy energy depends linearly on the electric field. 19 The enhancement of magnetic anisotropy in Pt/Fe/Pt(001) is found to be more pronounced than in Pd/Fe/Pd(001) surface. 19 Now, the question arises, for which nanostructures the above-mentioned effects are more pronounced.…”

“…19 The enhancement of magnetic anisotropy in Pt/Fe/Pt(001) is found to be more pronounced than in Pd/Fe/Pd(001) surface. 19 Now, the question arises, for which nanostructures the above-mentioned effects are more pronounced. In the present paper, we use first-principle calculations to investigate the magneto-electric effect of Fe chains on Pt(001) as shown in Fig.…”