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Employing $\textit{ab-initio}$ density functional theory (DFT), we performed a systematic investigation of the electronic structures and the magnetic properties of atomic bilayers composed of a 4$d$ transition-metal layer (Rh, Pd and Ru)…

Materials Science · Physics 2023-12-08 Souvik Paul , Stefan Heinze

Using spin-polarized scanning tunneling microscopy and density functional theory, we have studied the magnetic properties of Pd/Fe atomic bilayers on Re(0001). Two kinds of magnetic ground states are discovered due to different types of…

Mesoscale and Nanoscale Physics · Physics 2020-12-30 W. Li , S. Paul , K. von Bergmann , S. Heinze , R. Wiesendanger

Using spin-polarized scanning tunneling microscopy and density functional theory we demonstrate the occurrence of a novel type of noncollinear spin structure in Rh/Fe atomic bilayers on Ir(111). We find that higher-order exchange…

We study the magnetic interactions in atomic layers of Fe and 5d transition-metals such as Os, Ir, and Pt on the (001) surface of Rh using first-principles calculations based on density functional theory. For both stackings of the 5d-Fe…

Materials Science · Physics 2017-10-11 Sebastian Meyer , Bertrand Dupé , Paolo Ferriani , Stefan Heinze

We use first-principles calculations based on density functional theory to investigate the magnetic exchange interaction of Fe clusters on Rh(111) and Ru(0001). We consider dimers, trimers, tetramers, and pentamers of different shape in fcc…

Mesoscale and Nanoscale Physics · Physics 2013-12-13 F. Otte , P. Ferriani , S. Heinze

We present a detailed study of the ground-state magnetic structure of ultrathin Fe films on the surface of fcc Ir(001). We use the spin-cluster expansion technique in combination with the relativistic disordered local moment scheme to…

Mesoscale and Nanoscale Physics · Physics 2015-05-30 A. Deák , L. Szunyogh , B. Ujfalussy

We present a systematic study of higher-order exchange interactions beyond the pair-wise Heisenberg exchange in transition-metal trilayers based on density functional theory calculations. We show that these terms can play an important role…

Materials Science · Physics 2021-07-21 Mara Gutzeit , Soumyajyoti Haldar , Sebastian Meyer , Stefan Heinze

Using first-principles calculations and an atomistic spin model we predict the stabilization of a bilayer triple-Q state in an atomic Mn bilayer on Ir(111) due to interlayer higher-order exchange interactions. Based on density functional…

Materials Science · Physics 2025-06-06 Bjarne Beyer , Mara Gutzeit , Tim Drevelow , Isabel Schwermer , Soumyajyoti Haldar , Stefan Heinze

We investigate the interplay between the structural reconstruction and the magnetic properties of Fe doublelayers on Ir (111)-substrate using first-principles calculations based on density functional theory and mapping of the total energies…

Materials Science · Physics 2018-12-19 Melanie Dupé , Stefan Heinze , Jairo Sinova , Bertrand Dupé

We use a first-principles calculations approach to reveal the electronic and magnetic properties of chromium diiodide (CrI$_2$) bilayers and establish a hierarchy of magnetic interactions across stable registries. The monolayer presents a…

Materials Science · Physics 2025-12-23 B. Valdés-Toro , I. Ferreira-Araya , R. A. Gallardo , J. W. González

Ultrathin magnetic films on heavy metal substrates with strong spin-orbit coupling provide versatile platforms for exploring novel spin textures. So far, structurally open fcc(110) substrates remain largely terra incognita. Here, we…

The magnetic arrangement in the vicinity of the interface between a ferromagnet and an antiferromagnet is investigated, in particular its dependence on the exchange couplings and the temperature. Applying a Heisenberg model, both sc(001)…

Strongly Correlated Electrons · Physics 2009-11-11 P. J. Jensen , H. Dreysee , Miguel Kiwi

The magnetic structure of a Cr monolayer on a W(110) substrate is investigated by means of first-principles calculations based on the noncollinear spin density functional theory (DFT). As magnetic ground state we find a long-period…

Materials Science · Physics 2016-01-26 Bernd Zimmermann , Marcus Heide , Gustav Bihlmayer , Stefan Blügel

Diverse interlayer tunability of physical properties of two-dimensional layers mostly lies in the covalent-like quasi-bonding that is significant in electronic structures but rather weak for energetics. Such characteristics result in…

Materials Science · Physics 2019-04-03 Peiheng Jiang , Cong Wang , Dachuan Chen , Zhicheng Zhong , Zhe Yuan , Zhong-Yi Lu , Wei Ji

We show that stable skyrmions with diameters of a few nanometers can emerge in atomic Pd/Fe bilayers on the Rh(111) surface. Based on density functional theory we calculate the exchange and the Dzyaloshinskii-Moriya interaction as well as…

We use first-principles calculations based on density functional theory to study how the magnetic properties of an Fe monolayer on a W(001) surface -- exhibiting a $c(2 \times 2)$ antiferromagnetic ground state -- can be modified by an…

Materials Science · Physics 2021-09-22 Nanning Petersen , Sebastian Meyer , Stefan Heinze

A broken interfacial inversion symmetry in ultrathin ferromagnet/heavy metal (FM/HM) bilayers is generally believed to be a prerequisite for accommodating the Dzyaloshinskii-Moriya interaction (DMI) and for stabilizing chiral spin textures.…

A new computational scheme is presented based on a combination of the conjugate gradient and the Newton-Raphson method to self-consistently minimize the energy within spin-density functional theory, thus to identify the ground state…

Mesoscale and Nanoscale Physics · Physics 2022-08-17 Balázs Nagyfalusi , László Udvardi , László Szunyogh

We present a comprehensive study on the magnetization reversal in Fe/NiFe bilayer system by alternating the order of the magnetic layers. All the samples show growth-induced uniaxial magnetic anisotropy due to oblique angle deposition…

Magnetic MXenes are turning out to be an important family of materials for exploring 2D magnetism. However, investigations into the inter-dependence of layer thickness, stacking patterns and magnetism in these materials, from a microscopic…

Materials Science · Physics 2022-09-23 Himangshu Sekhar Sarmah , Subhradip Ghosh
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