268 citations · 1.2k across the 21 of their papers we have counts for
18 papers · 1 filter
Self-assembling of Ge quantum dots in an alumina matrix
M. Buljan, S. R. C. Pinto, A. G. Rolo +6
In this work we report on a self-assembled growth of a Ge quantum dot lattice in a single 600-nm-thick Ge+Al2O3 layer during magnetron sputtering deposition of a Ge+Al2O3 mixture a…
Crystal structure evolution in the van der Waals transition metal trihalides
Marie Kratochvilova, Petr Dolezal, David Hovancik +5
Most transition-metal trihalides are dimorphic. The representative chromium-based triad, CrCl3, CrBr3, CrI3, is characterized by the low-temperature phase adopting the trigonal BiI…
Single crystal studies and electronic structure investigation of a room-temperature semiconductor NaMnAs
J. Volny, V. Holy, K. Charvatova +11
We report synthesis of single crystalline NaMnAs, confirm its antiferromagnetic order and characterise the sample by photoemission spectroscopy. The electronic structure was studie…
Entropy controlled fully reversible nanostructure formation of Ge on miscut vicinal Si (001) surfaces
Christian Grossauer, Vaclv Holy, Gunther Springholz
Entropy effects substantially modify the growth of self-assembled Ge nanostructures on vicinal Si (001) surfaces. As shown by variable temperature scanning tunneling microscopy, th…
Influence of an anomalous temperature-dependence of the phase coherence length on the conductivity of magnetic topological insulators
V. Tkáč, K. Výborný, V. Komanický +14
Magnetotransport constitutes a useful probe to understand the interplay between electronic band topology and magnetism in spintronics devices based on topological materials. A rece…
Magnetic anisotropy in antiferromagnetic hexagonal MnTe
D. Kriegner, H. Reichlova, J. Grenzer +12
Antiferromagnetic hexagonal MnTe is a promising material for spintronic devices relying on the control of antiferromagnetic domain orientations. Here we report on neutron diffracti…
Local moment formation and magnetic coupling of Mn guest atoms in BiSe: a low-temperature ferromagnetic resonance study
D. Savchenko, R. Tarasenko, M. Vališka +7
We compare the magnetic and electronic configuration of single Mn atoms in molecular beam epitaxy (MBE) grown BiSe thin films, focusing on electron paramagnetic (ferromagne…
Topological insulator homojunctions including magnetic layers: the example of n-p type (-QLs BiSe/Mn-BiSe) heterostructures
M. Valiska, J. Warmuth, M. Michiardi +9
Homojunctions between BiSe and its Mn-doped phase are investigated as a sample geometry to study the influence of spin degrees of freedom on topological insulator propertie…
Multiple-stable anisotropic magnetoresistance memory in antiferromagnetic MnTe
D. Kriegner, K. Vyborny, K. Olejnik +10
A common perception assumes that magnetic memories require ferromagnetic materials with a non-zero net magnetic moment. However, it has been recently proposed that compensated anti…
Giant reversible nanoscale piezoresistance at room temperature in Sr2IrO4 thin films
Neus Domingo, Laura López-Mir, Marcos Paradinas +10
Layered iridates have been the subject of intense scrutiny on account of their unusually strong spin-orbit coupling, which opens up a narrow gap in a material that would otherwise…
Powder diffraction in Bragg-Brentano geometry with straight linear detectors
Dominik Kriegner, Zdenek Matej, Radomir Kuzel +1
A common way of speeding up powder diffraction measurements is the use of one or two dimensional detectors. This usually goes along with worse resolution and asymmetric peak profil…
Tetragonal phase of epitaxial room-temperature antiferromagnet CuMnAs
P. Wadley, V. Novák, R. P. Campion +20
Recent studies have demonstrated the potential of antiferromagnets as the active component in spintronic devices. This is in contrast to their current passive role as pinning layer…
Solving and refining novel thin film phases using Cu X-ray radiation: the epitaxy-induced CuMnAs tetragonal phase
P. Wadley, A. Crespi, J. Gazquez +10
We present a combined experimental and computational method which enables the precise determination of the atomic positions in a thin film using CuKα radiation, only. The capabilit…
Skin layer of BiFeO3 single crystals
X. Marti, P. Ferrer, J. Herrero-Albillos +5
A surface layer ("skin") that is functionally and structurally different from the bulk was found in single crystals of BiFeO3. Impedance analysis indicates that a previously report…
Tunneling anisotropic magnetoresistance of NiFe/IrMn/MgO/Pt stack: An antiferromagnet based spin-valve
B. G. Park, J. Wunderlich, X. Marti +9
Spin-valve is a microelectronic device in which high and low resistance states are realized by utilizing both charge and spin of carriers. Spin-valve structures used in modern hard…
Surface morphology and magnetic anisotropy in (Ga,Mn)As
S. Piano, X. Marti, A. W. Rushforth +6
Atomic Force Microscopy and Grazing incidence X-ray diffraction measurements have revealed the presence of ripples aligned along the direction on the surface of (Ga,M…
Nonlinear evolution of surface morphology in InAs/AlAs superlattices via surface diffusion
O. Caha, V. Holý, Kevin E. Bassler
Continuum simulations of self-organized lateral compositional modulation growth in InAs/AlAs short-period superlattices on InP substrate are presented. Results of the simulations c…
Mn incorporation in as-grown and annealed (Ga,Mn)As layers studied by x-ray diffraction and standing-wave uorescence
V. Holy, Z. Matej, O. Pacherova +4
A combination of high-resolution x-ray diffraction and a new technique of x-ray standing wave uorescence at grazing incidence is employed to study the structure of (Ga,Mn)As dilute…