130 citations · 1.1k across the 46 of their papers we have counts for
46 papers
Excitation caging in a vertex-frustrated quasiperiodic Einstein artificial spin ice
T. Wang, F. Museur, G. M. Macauley +5
Naturally occurring bulk quasicrystals are rare, and magnetic instances are rarer still, with chemical constraints typically permitting the synthesis of approximants rather than tr…
Current-induced magnetization control in dipolar-coupled nanomagnet pairs and artificial spin ice
A. Pac, G. M. Macauley, J. A. Brock +5
Exploiting current-induced spin-orbit torques (SOTs) to manipulate the magnetic state of dipolar-coupled nanomagnet systems with in-plane magnetic anisotropy, such as artificial sp…
Generating unconventional spin-orbit torques with patterned phase gradients in tungsten thin films
Lauren J. Riddiford, Anne Flechsig, Shilei Ding +7
A key aim in spintronics is to achieve current-induced magnetization switching via spin-orbit torques without external magnetic fields. For this, the focus of recent work has been…
Attaining the Ground State of Kagome Artificial Spin Ice via Ultrafast Site-Specific Laser Annealing
D. Pecchio, S. Sahoo, V. Scagnoli +1
Artificial spin ices (ASIs) provide a versatile platform to explore magnetic frustration and emergent phenomena. However, in kagome ASI, experimental access to the ground state rem…
Magnetic-Field Control of Emergent Order in a 3D Dipolar Pyramid Artificial Spin Ice
Luca Berchialla, Gavin M. Macauley, Flavien Museur +2
We realize a three-dimensional artificial spin ice of disconnected nanomagnets interacting solely via dipolar coupling, patterned on square pyramids. This Pyramid artificial spin i…
Realizing Blume-Capel Degrees of Freedom with Toroidal Moments in a Ruby Artificial Spin Ice
Luca Berchialla, Gavin M. Macauley, Flavien Museur +4
Realizing exotic Hamiltonians beyond the Ising model is a key pursuit in experimental statistical physics. One such example is the Blume-Capel model, a three-state spin model, whos…
Ultrafast Laser-Induced Magnetic Relaxation in Artificial Spin Ice Driven by Dipolar Interactions
D. Pecchio, S. Sahoo, O. Chubykalo-Fesenko +6
It is of great interest to develop methods to rapidly and effectively control the magnetic configurations in artificial spin ices, which are arrangements of dipolar coupled nanomag…
Engineering and exploiting self-driven domain wall motion in ferrimagnets for neuromorphic computing applications
Jeffrey A. Brock, Aleksandr Kurenkov, Aleš Hrabec +1
Magnetic domain wall motion has recently garnered significant interest as a physical mechanism to enable energy-efficient, next-generation brain-inspired computing architectures. H…
X-ray linear dichroic orientation tomography: reconstruction of nanoscale three-dimensional orientation fields
Andreas Apseros, Valerio Scagnoli, Manuel Guizar-Sicairos +3
Properties in crystalline and ordered materials tend to be anisotropic, with their orientation affecting the macroscopic behavior and functionality of materials. The ability to ima…
Magnetic ordering in out-of-plane artificial spin systems based on the Archimedean lattices
Aleksandra Pac, Gavin M. Macauley, Jamie R. Massey +4
Artificial spin systems, sometimes referred to as artificial spin ices, are arrays of coupled nanoscale magnets that order according to the lattice geometry, nanomagnet shape and m…
Control of spin-orbit torque-driven domain nucleation through geometry in chirally coupled magnetic tracks
Guillaume Beaulieu, Zhaochu Luo, Víctor Raposo +4
The interfacial Dzyaloshinskii-Moriya interaction (DMI) can be exploited in magnetic thin films to realize lateral chirally coupled systems, providing a way to couple different sec…
Perpendicular-anisotropy artificial spin ice with spontaneous ordering: a platform for neuromorphic computing with flexible timescales
Aleksandr Kurenkov, Jonathan Maes, Aleksandra Pac +4
Arrays of coupled nanomagnets have wide-ranging fundamental and practical applications in artificial spin ices, neuromorphic computing and spintronics. However, lacking in these fi…
Five-stage ordering to a topological-defect-mediated ground state in a buckyball artificial spin ice
Gavin M. Macauley, Luca Berchialla, Peter M. Derlet +1
Artificial spin ices are arrays of coupled nanomagnets, which exhibit a variety of fascinating collective behaviour including emergent magnetic monopoles, charge screening, and nov…
X-ray Linear Dichroic Tomography of Crystallographic and Topological Defects
Andreas Apseros, Valerio Scagnoli, Mirko Holler +6
The functionality of materials is determined by their composition and microstructure, that is, the distribution and orientation of crystalline grains, grain boundaries and the defe…
Grayscale control of local magnetic properties with direct-write laser annealing
Lauren J. Riddiford, Jeffrey A. Brock, Katarzyna Murawska +2
Across the fields of magnetism, microelectronics, optics, and others, engineered local variations in physical properties can yield groundbreaking functionalities that play a crucia…
Plasmon-enhanced optical control of magnetism at the nanoscale via the inverse Faraday effect
Sergii Parchenko, Kevin Hofhuis, Agne Ciuciulkaite +4
The relationship between magnetization and light has been the subject of intensive research for the past century, focusing on the impact of magnetic moments on light polarization.…
Electrically programmable magnetic coupling in an Ising network exploiting solid-state ionic gating
Chao Yun, Zhongyu Liang, Aleš Hrabec +12
Two-dimensional arrays of magnetically coupled nanomagnets provide a mesoscopic platform for exploring collective phenomena as well as realizing a broad range of spintronic devices…
Strong lateral exchange coupling and current-induced switching in single-layer ferrimagnetic films with patterned compensation temperature
Zhentao Liu, Zhaochu Luo, Ivan Shorubalko +4
Strong, adjustable magnetic couplings are of great importance to all devices based on magnetic materials. Controlling the coupling between adjacent regions of a single magnetic lay…
Long-range order in arrays of composite and monolithic magneto-toroidal moments
Jannis Lehmann, Naëmi Leo, Laura Jane Heyderman +1
Magneto-toroidal order, also called ferrotoroidicity, is the most recently established type of ferroic state. It is based on a spontaneous and uniform alignment of unit-cell-sized…
Engineering of Intrinsic Chiral Torques in Magnetic Thin Films Based on the Dzyaloshinskii-Moriya Interaction
Zhentao Liu, Zhaochu Luo, Stanislas Rohart +3
The establishment of chiral coupling in thin magnetic films with inhomogeneous anisotropy has led to the development of artificial systems of fundamental and technological interest…
Mesoscopic magnetic systems: from fundamental properties to devices
Laura J. Heyderman, Julie Grollier, Christopher H. Marrows +4
Here we review various themes of current research within mesoscopic magnetic systems.
Synchronization of chiral vortex nano-oscillators
Zhiyang Zeng, Zhaochu Luo, Laura J. Heyderman +2
The development of spintronic oscillators is driven by their potential applications in radio frequency telecommunication and neuromorphic computing. In this work, we propose a spin…
Field- and current-driven magnetic domain-wall inverter and diode
Zhaochu Luo, Stefan Schären, Aleš Hrabec +8
We investigate the inversion process of magnetic domain walls (DWs) propagating through synthetic noncollinear magnetic textures, whereby an up/down DW can be transformed into a do…
Artificial out-of-plane Ising antiferromagnet on the kagome lattice with very small further neighbour couplings
Jeanne Colbois, Kevin Hofhuis, Zhaochu Luo +4
Despite their simple formulation, short range classical antiferromagnetic Ising models on frustrated lattices give rise to exotic phases of matter, in particular due to their macro…