Journal ArticleDOI
Real-space imaging of two-dimensional antiferromagnetism on the atomic scale
Stefan Heinze,Stefan Heinze,Matthias Bode,André Kubetzka,O. Pietzsch,X. Nie,Stefan Blügel,Roland Wiesendanger +7 more
TLDR
These investigations demonstrate a powerful technique for the understanding of complicated magnetic configurations of nanomagnets and thin films engineered from ferromagnetic and antiferromagnetic materials used for magnetoelectronics.Abstract:
A two-dimensional antiferromagnetic structure within a pseudomorphic monolayer film of chemically identical manganese atoms on tungsten(110) was observed with atomic resolution by spin-polarized scanning tunneling microscopy at 16 kelvin. A magnetic superstructure changes the translational symmetry of the surface lattice with respect to the chemical unit cell. It is shown, with the aid of first-principles calculations, that as a result of this, spin-polarized tunneling electrons give rise to an image corresponding to the magnetic superstructure and not to the chemical unit cell. These investigations demonstrate a powerful technique for the understanding of complicated magnetic configurations of nanomagnets and thin films engineered from ferromagnetic and antiferromagnetic materials used for magnetoelectronics.read more
Citations
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Journal ArticleDOI
Topological properties and dynamics of magnetic skyrmions
TL;DR: From this description, potential applications of skyrmions as information carriers in magnetic information storage and processing devices are envisaged.
Journal ArticleDOI
Spontaneous atomic-scale magnetic skyrmion lattice in two dimensions
Stefan Heinze,Kirsten von Bergmann,Matthias Menzel,Jens Brede,André Kubetzka,Roland Wiesendanger,Gustav Bihlmayer,Stefan Blügel +7 more
TL;DR: In this article, a two-dimensional square lattice of skyrmions on the atomic length scale was described as the magnetic ground state of a hexagonal Fe film of one-atomic-layer thickness on the Ir(111) surface.
Journal ArticleDOI
Magnetic memory of a single-molecule quantum magnet wired to a gold surface.
Matteo Mannini,Francesco Pineider,Philippe Sainctavit,Chiara Danieli,Edwige Otero,Corrado Sciancalepore,Anna Maria Talarico,Marie-Anne Arrio,Andrea Cornia,Dante Gatteschi,Roberta Sessoli +10 more
TL;DR: The road is now open to address individual molecules wired to a conducting surface in their blocked magnetization state, thereby enabling investigation of the elementary interactions between electron transport and magnetism degrees of freedom at the molecular scale.
Journal ArticleDOI
Two-dimensional itinerant ferromagnetism in atomically thin Fe3GeTe2.
Zaiyao Fei,Bevin Huang,Paul Malinowski,Wenbo Wang,Tiancheng Song,Joshua Sanchez,Wang Yao,Di Xiao,Xiaoyang Zhu,Andrew F. May,Weida Wu,David Cobden,Jiun-Haw Chu,Xiaodong Xu +13 more
TL;DR: It is demonstrated that Fe3GeTe2 (FGT), an exfoliable vdW magnet, exhibits robust 2D ferromagnetism with strong perpendicular anisotropy when thinned down to a monolayer.
Journal ArticleDOI
Direct Observation of Internal Spin Structure of Magnetic Vortex Cores
TL;DR: The results confirm theoretical predictions that the size and the shape of the vortex core as well as its magnetic field dependence are governed by only two material parameters, the exchange stiffness and the saturation magnetization that determines the stray field energy.
References
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Journal ArticleDOI
Inhomogeneous Electron Gas
P. C. Hohenberg,Walter Kohn +1 more
TL;DR: In this article, the ground state of an interacting electron gas in an external potential was investigated and it was proved that there exists a universal functional of the density, called F[n(mathrm{r})], independent of the potential of the electron gas.
Journal ArticleDOI
Theory and Application for the Scanning Tunneling Microscope
Jerry Tersoff,D. R. Hamann +1 more
TL;DR: In this article, a theory for vacuum tunneling between a real solid surface and a model probe with a locally spherical tip is presented, applicable to the recently developed "scanning tunneling microscope."
Journal ArticleDOI
Observation of vacuum tunneling of spin-polarized electrons with the scanning tunneling microscope
TL;DR: Topographic STM images of the Cr(001) surface using a tungsten tip confirm the model of topological antiferromagnetism between ferromagnetic terraces separated by monatomic steps of 0.144 nm height.
Journal ArticleDOI
Observation of antiferromagnetic domains in epitaxial thin films
Andreas Scholl,Joachim Stöhr,Jan Lüning,Jin Won Seo,Jean Fompeyrine,Heinz Siegwart,Jean-Pierre Locquet,Frithjof Nolting,Simone Anders,Eric E. Fullerton,M. R. Scheinfein,Howard A. Padmore +11 more
TL;DR: These studies open the door for a microscopic understanding of the magnetic coupling across antiferromagnetic-ferromagnetic interfaces.