Defect‐Induced Magnetism in Nonmagnetic Oxides: Basic Principles, Experimental Evidence, and Possible Devices with ZnO and TiO2

PD Esquinazi, W Hergert, M Stiller… - … status solidi (b), 2020 - Wiley Online Library
The magnetic moment and the magnetic order induced by localized defects, like vacancies,
interstitials, and/or nonmagnetic (NM) ions, in a NM oxide atomic lattice are discussed …

Spin‐Torque Diodes: From Fundamental Research to Applications

PN Skirdkov, KA Zvezdin - Annalen der Physik, 2020 - Wiley Online Library
Among a rich variety of emerging spintronic devices, spin‐torque diodes (STDs) are among
the most interesting, from both a fundamental and an applied perspective. The spin‐torque …

[HTML][HTML] Few-nm tracking of current-driven magnetic vortex orbits using ultrafast Lorentz microscopy

M Möller, JH Gaida, S Schäfer, C Ropers - Communications Physics, 2020 - nature.com
Transmission electron microscopy is one of the most powerful techniques to characterize
nanoscale magnetic structures. In light of the importance of fast control schemes of magnetic …

[HTML][HTML] Dynamic excitations of chiral magnetic textures

M Lonsky, A Hoffmann - APL Materials, 2020 - pubs.aip.org
Spin eigenexcitations of skyrmions and related chiral magnetic textures have attracted
considerable interest over the recent years owing to their strong potential for applications in …

Symmetry-protected zero modes in metamaterials based on topological spin texture

ZX Li, Y Cao, XR Wang, P Yan - Physical Review Applied, 2020 - APS
We predict the emergence of second-order topological insulators in the dynamics of spin-
texture-based metamaterials. We propose that the quantized Chern number and the Z 6 …

High-frequency spin transfer nano-oscillator based on the motion of skyrmions in an annular groove

C Jin, Y Ma, C Song, H Xia, J Wang… - New Journal of …, 2020 - iopscience.iop.org
Magnetic skyrmion-based spin transfer nano-oscillators (STNOs) have been proposed as
microwave signal generators and attracted enormous interest recently. However, the …

[HTML][HTML] Spin–orbit torque nano-oscillator with giant magnetoresistance readout

JR Chen, A Smith, EA Montoya, JG Lu… - Communications …, 2020 - nature.com
Spin-orbit torque nano-oscillators based on bilayers of ferromagnetic and nonmagnetic
metals are ultra-compact current-controlled microwave signal sources. They are attractive for …

Helicity of magnetic vortices and skyrmions in soft ferromagnetic nanodots and films biased by stray radial fields

RV Verba, D Navas, SA Bunyaev, A Hierro-Rodriguez… - Physical Review B, 2020 - APS
Static magnetization configurations of thin soft ferromagnetic films and nanodots, coupled to
a hard antidot matrix with out-of-plane magnetization, are studied by micromagnetic …

Detection of the microwave emission from a spin-torque oscillator by a spin diode

D Marković, N Leroux, A Mizrahi, J Trastoy, V Cros… - Physical Review …, 2020 - APS
Magnetic tunnel junctions are nanoscale spintronic devices with microwave-generation and-
detection capabilities. Here, we use the rectification effect called a “spin diode” in a magnetic …

Dimensional crossover in spin Hall oscillators

A Smith, K Sobotkiewich, A Khan, EA Montoya, L Yang… - Physical Review B, 2020 - APS
Auto-oscillations of magnetization driven by direct spin current have been previously
observed in multiple quasi-zero-dimensional (0D) ferromagnetic systems such as …