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We experimentally verify the existence of two model-type magnetic ground states which were previously predicted but so far unobserved. We find them in Mn monolayers on the Re(0001) surface using spin-polarized scanning tunneling microscopy.…

Mesoscale and Nanoscale Physics · Physics 2020-07-01 Jonas Spethmann , Sebastian Meyer , Kirsten von Bergmann , Roland Wiesendanger , Stefan Heinze , André Kubetzka

We identify the triple-Q (3Q) state as magnetic ground state in Pd/Mn and Rh/Mn bilayers on Re(0001) using spin-polarized scanning tunneling microscopy and density functional theory. An atomistic model reveals that in general the 3Q state…

Layered transition metal trichalcogenides with the chemical formula $ABX_3$ have attracted recent interest as potential candidates for two-dimensional magnets. Using first-principles calculations within density functional theory, we…

Materials Science · Physics 2015-08-11 Nikhil Sivadas , Matthew W. Daniels , Robert H. Swendsen , Satoshi Okamoto , Di Xiao

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 conduct a comprehensive density functional theory (DFT) study to explore the intricate magnetic properties of frustrated Mn monolayer on the Ag(111) surface. Spin-polarized scanning tunneling microscopy demonstrates that a N\'eel…

Materials Science · Physics 2024-12-23 Selcuk Sözeri , Nihad Abuawwad , Amal Aldarawsheh , Samir Lounis

The triple-Q state arises due to the superposition of three symmetry equivalent spin spirals stabilized by higher-order exchange interactions. It has been predicted more than 20 years ago but was only recently discovered in a Mn monolayer…

Materials Science · Physics 2026-01-12 Leo Kollwitz , Moritz A. Goerzen , Bjarne Beyer , Hendrik Schrautzer , Stefan Heinze

We report on the structural and magnetic properties of single and double atomic layers of Mn on a clean and unreconstructed Nb(110) substrate. Low-temperature scanning tunneling spectroscopy measurements reveal a proximity-induced…

The electronic structures and magnetic properties of strained monolayer MnPSe3 are investigated systematically by first-principles calculations. It is found that the magnetic ground state (GS) of monolayer MnPSe3 can be significantly…

Materials Science · Physics 2018-04-30 Qi Pei , Xiaocha Wang , Jijun Zou , Wenbo Mi

We theoretically investigate multiple-$Q$ spin textures, which are composed of superpositions of spin density waves with different wave numbers, for an effective spin model of centrosymmetric itinerant magnets. Our focus is on the interplay…

Strongly Correlated Electrons · Physics 2021-02-17 Satoru Hayami , Yukitoshi Motome

We use spherical neutron polarimetry to determine the ground state magnetic structure of Mn3Sn. We find that Mn3Sn adopts an inverse triangular structure with spins parallel to <100> (Type III) rather than spins parallel to <110> (Type IV).…

Based on density functional theory (DFT), we performed first-principle studies on the electronic structure, magnetic state and optical properties of two-dimensional (2D) transition-metal phosphorous trichalcogenide MnPX$_3$ (X=S and Se).…

Materials Science · Physics 2021-12-23 Juntao Yang , Yong Zhou , Qilin Guo , Yuriy Dedkov , Elena Voloshina

We studied by angle-resolved photoelectron spectroscopy the strain-related structural transition from a pseudomorphic monolayer (ML) to a striped incommensurate phase in an Ag thin film grown on Pt(111). We exploited the surfactant…

Recently, two monolayer magnetic materials, i.e., FePS3 and NiPS3, have been successfully fabricated. Despite that they have the same atomic structure, the two monolayers exhibit distinct magnetic properties. FePS3 holds an out-of-plane…

Materials Science · Physics 2024-01-03 Ping Li , Xueyang Li , Junsheng Feng , Jinyang Ni , Zhi-Xin Guo , Hongjun Xiang

We show that two distinct $3 \times 3$ ground states, one nonmagnetic, metallic, and distorted, the other magnetic, semimetallic (or insulating) and undistorted, compete in $\alpha$-phase adsorbates on semiconductor (111) surfaces. In…

Condensed Matter · Physics 2009-10-31 S. de Gironcoli , S. Scandolo , G. Ballabio , G. Santoro , E. Tosatti

Using density functional theory, we investigate the electronic and magnetic properties of $3d$ transition-metal adatoms adsorbed on a monolayer of Mn on W(110). Mn/W(110) has a noncollinear cycloidal spin-spiral ground state with an angle…

Materials Science · Physics 2020-04-15 Mara Gutzeit , Soumyajyoti Haldar , Stefan Heinze

We have used spherical neutron polarimetry to investigate the magnetic structure of the Mn spins in the hexagonal semimetal Mn$_3$Ge, which exhibits a large intrinsic anomalous Hall effect. Our analysis of the polarimetric data finds a…

Strongly Correlated Electrons · Physics 2020-04-30 J. -R. Soh , F. de Juan , N. Qureshi , H. Jacobsen , H. -Y. Wang , Y. -F. Guo , A. T. Boothroyd

Magnetic frustration in two-dimensional spin lattices with triangular motifs underpins a series of exotic states, ranging from multi-Q configurations to disordered spin-glasses. The antiferromagnetic kagome lattice, characterized by its…

Two-dimensional van der Waals magnetic materials are of great current interest for their promising applications in spintronics. In this work, using density functional theory calculations in combination with the maximally localized Wannier…

Materials Science · Physics 2024-01-30 Guangyu Wang , Ke Yang , Yaozhenghang Ma , Lu Liu , Di Lu , Yuxuan Zhou , Hua Wu

Magnetic nano-objects possess great potential for more efficient data processing, storage and neuromorphic type of applications. Using high perpendicular magnetic anisotropy synthetic antiferromagnets in the form of multilayer-based…

The transition-metal intercalated dichalcogenide CoNb$_3$S$_6$ is a triangular antiferromagnet that has recently been shown to exhibit a large anomalous Hall effect (AHE) below the N\'eel temperature, even though the response to an external…

Materials Science · Physics 2022-01-27 O. Heinonen , R. A. Heinonen , H. Park
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