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We predict that CeBi in the ferromagnetic state is a Weyl semimetal. Our calculations within density functional theory show the existence of two pairs of Weyl nodes on the momentum path $(0, 0, k_z)$ at $15$ meV} above and $100$ meV below…

Recent advances in scanning tunneling microscopy have enabled quantum-coherent control of single surface spins via all-electric electron spin resonance (ESR). Such control requires magnetoelectric coupling, since spin resonance is a…

Mesoscale and Nanoscale Physics · Physics 2025-10-31 Xue Zhang , Jose Reina-Gálvez , Di'an Wu , Jan Martinek , Andreas J. Heinrich , Taeyoung Choi , Christoph Wolf

By means of magneto-optical Kerr effect we observe spin reorientations from in-plane to out-of-plane and vice versa upon annealing thin Fe films on Ag(001) at increasing temperatures. Scanning tunneling microscopy images of the different Fe…

Materials Science · Physics 2009-10-31 D. M. Schaller , D. E. Buergler , C. M. Schmidt , F. Meisinger , H. -J. Guentherodt

In a theoretical study, we investigate the spin dynamics of interacting nitrogen-vacancy (NV) centers and quadrupolar I = 3/2 nuclear spins, specifically 11B spins in hexagonal boron nitride (h-BN) nanosheets located near the microdiamond…

Quantum Physics · Physics 2024-10-03 Lu Chen , Jiawen Jiang , Martin B. Plenio , Qiong Chen

Germanium telluride features special spin-electric effects originating from spin-orbit coupling and symmetry breaking by the ferroelectric lattice polarization, which opens up many prospectives for electrically tunable and switchable spin…

The electronic structure of Si(111)-(6x6)Au surface covered with submonolayer amount of Pb is investigated using scanning tunneling spectroscopy. Already in small islands of Pb with thickness of 1 ML Pb$_{(111)}$ and with the diameter of…

Mesoscale and Nanoscale Physics · Physics 2009-11-11 M. Krawiec , M. Jalochowski , M. Kisiel

Grain boundaries (GBs) in oxide perovskites significantly influence their functional properties. This study examines the atomic-scale structure and composition of a faceted asymmetric grain boundary in strontium titanate (SrTiO$_3$) using…

We report on the structural, electronic and magnetic properties of a monolayer of GdAg2, forming a moir\'e pattern on Ag(111). Combining scanning tunneling microscopy and ab-initio spin-polarized calculations, we show that the electronic…

Materials Science · Physics 2017-12-20 Alexander Correa , Bin Xu , Matthieu J. Verstraete , Lucia Vitali

A novel scanning tunneling microscope manipulation scheme for a controlled molecular transport of weakly adsorbed molecules is demonstrated. Single sexiphenyl molecules adsorbed on a Ag(111) surface at 6 K are shot towards single…

Materials Science · Physics 2009-11-10 Saw-Wai Hla , Kai-Felix Braun , Bernhard Wassermann , Karl-Heinz Rieder

Atomically thin two-dimensional (2D) layered semiconductors such as transition metal dichalcogenides (TMDs) have attracted considerable attention due to their tunable band gap, intriguing spin-valley physics, piezoelectric effects and…

Variation of the geometrical and electronic properties of the gold materials in different dimensions has been investigated by $ab$ $initio$ method, taking into account the spin-orbit (SO) interaction. It is found that SO effects in…

Materials Science · Physics 2009-11-13 Xiaoping Yang , Jian Zhou , Hongming Weng , Jinming Dong

The introduction of spin-orbit interactions (SOIs) and the subsequent appearance of a two-dimensional (2D) topological phase are crucial for voltage-controlled and zero-emission energy spintronic devices. In contrast, graphene basically…

Mesoscale and Nanoscale Physics · Physics 2019-04-05 T. Namba , K. Tamura , K. Hatsuda , T. Nakamura , C. Ohata , S. Katsumoto , J. Haruyama

In this work we study the topologically protected states of the Sb(111) surface by using ab-initio transport theory. In the presence of a strong surface perturbation we obtain standing-wave states resulting from the superposition of…

Mesoscale and Nanoscale Physics · Physics 2013-06-11 Awadhesh Narayan , Ivan Rungger , Stefano Sanvito

Using the microscopic three temperature model, we simulate single-pulse all-optical switching (AOS) in alloys and bilayers consisting of Co and Gd. In particular, we investigate its dependence on the spin-flip probability of Gd…

Mesoscale and Nanoscale Physics · Physics 2024-05-28 Julian Hintermayr , Bert Koopmans

The discovery of topological states of matter has led to a revolution in materials research. When external or intrinsic parameters break certain symmetries, global properties of topological materials change drastically. A paramount example…

Global geometry optimization and time-dependent density functional theory calculations have been used to study the structural evolution and optical properties of (AgAu)n (n=2-6) nanoalloys both as individual clusters and as clusters…

Materials Science · Physics 2017-02-23 Dennis Palagin , Jonathan P. K. Doye

The development of electron spin resonance (ESR) combined with scanning tunneling spectroscopy (STM) is undoubtedly one of the main experimental breakthroughs in surface science of the last decade thanks to joining the extraordinarily high…

Strongly Correlated Electrons · Physics 2022-08-31 Fernando Delgado , Nicolás Lorente

We report Eu L3-edge resonant inelastic x-ray scattering (RIXS) investigation of the electronic structure of EuB6. We observe that the RIXS spectral weight around 1.1 eV increases dramatically when the system is cooled below the…

Strongly Correlated Electrons · Physics 2011-07-07 Jungho Kim , Wei Ku , Chi-Cheng Lee , D. S. Ellis , B. K. Cho , A. H. Said , Yu. Shvyd'ko , Young-June Kim

Half-metallic Heusler alloys are amongst the most promising materials for future magnetoelectronic applications. We review some recent results on the electronic properties of these compounds. The origin of the gap in these half-metallic…

Materials Science · Physics 2009-11-11 I. Galanakis , Ph. Mavropoulos

We present a theoretical study of surface states close to 3d transition metal adatoms (Cr, Mn, Fe, Co, Ni and Cu) on a Cu(111) surface in terms of an embedding technique using the fully relativistic Korringa-Kohn-Rostoker method. For each…

Materials Science · Physics 2009-11-11 B. Lazarovits , L. Szunyogh , P. Weinberger
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