133 citations · 514 across the 23 of their papers we have counts for
23 papers
Magnetism of noncolinear amorphous DyCo3 and TbCo3 thin films
Zexiang Hu, Ajay Jha, Katarzyna Siewierska +4
The magnetization of amorphous DyCo3 and TbCo3 is studied by magnetometry, anomalous Hall effect and magneto-optic Kerr effect to understand the temperature-dependent magnetic stru…
Magnetism, transport and atomic structure of amorphous binary YxCo1-x alloys
Zexiang Hu, Jean Besbas, Katarzyna Siewierska +3
Sputtered thin films of binary YxCo1-x with 0 < x < 0.54 and thickness 15 nm are investigated to help understand the ferromagnetism of cobalt in amorphous rare-earth cobalt alloys.…
Effects of disorder on the magnetic properties of the Heusler alloy VFeAl
Ross Smith, Zsolt Gercsi, Rui Zhang +3
Magnetic properties of multicomponent alloys depend sensitively on the degree of atomic order on the different crystallographic sites. In this work we demonstrate the magnetic cont…
RuMnAl thin films
K. E. Siewierska, H. Kurt, B. Shortall +7
The cubic Heusler alloy RuMnAl is grown in thin film form on MgO and MgAlO substrates. It is a highly spin-polarised ferrimagnetic metal, with weak magnetoc…
Deterministic multi-level spin orbit torque switching using He+ microscopy patterning
Jinu Kurian, Aleena Joseph, Salia Cherifi-Hertel +7
He ion irradiation is used to pattern multiple areas of Pt/Co/W films with different irradiation doses in Hall bars. The resulting perpendicular magnetic anisotropy landscape e…
Au4Mn, a localized ferromagnet with strong spin-orbit coupling, long-range ferromagnetic exchange and high Curie temperature
Yangkun He, Zsolt Gercsi, Rui Zhang +8
Metallic Mn-based alloys with a nearest-neighbor Mn-Mn distance greater than 0.4 nm exhibit large, well-localized magnetic moments. Here we investigate the magnetism of tetragonal…
Rare-earth-free noncollinear metallic ferrimagnets Mn4-xZxN with compensation at room temperature
Rui Zhang, Yangkun He, Daniel Fruchart +2
Compensated ferrimagnets, like antiferromagnets, show no net magnetization but their transport and magneto-optic properties resemble those of ferromagnets, thereby creating opportu…
Single-pulse all-optical switching in amorphous DyCo and TbCo
Zexiang Hu, Jean Besbas, Ross Smith +5
Repeated uniform switching of the magnetization of thin films of ferrimagnetic amorphous Gd(FeCo) in response to single fast laser pulses is well established. Here we…
Magnetic reversal and pinning in a perpendicular zero moment half-metal
Niclas Teichert, Gwenael Atcheson, Katarzyna Siewierska +6
Compensated ferrimagnets are promising materials for fast spintronic applications based on domain wall motion as they combine the favourable properties of ferromagnets and antiferr…
Ultra-fast Double Pulse All-Optical Re-switching of a Ferrimagnet
C. Banerjee, K. Rode, G. Atcheson +4
All-optical re-switching has been investigated in the half-metallic Heusler ferrimagnet Mn2Ru0.9Ga, where Mn atoms occupy two inequivalent sites in the XA-type structure. The effec…
Magnetic order and magneto-transport in half-metallic ferrimagnetic MnRuGa thin films
K. E. Siewierska, G. Atcheson, A. Jha +8
The ruthenium content of half-metallic MnRuGa thin films, with a biaxially-strained inverse Heusler structure, controls the ferrimagnetism that determines their magnetic an…
Magnetization dynamics of the compensated ferrimagnet
G. Bonfiglio, K. Rode, K. Siewerska +7
Here we study both static and time-resolved dynamic magnetic properties of the compensated ferrimagnet from room temperature down to 10K, thus crossing the magnetic compensation te…
Single pulse all-optical toggle switching of magnetization without Gd: The example of Mn2RuxGa
C. Banerjee, N. Teichert, K. Siewierska +6
Energy-efficient control of magnetization without the help of a magnetic field is a key goal of spintronics. Purely heat-induced single-pulse all-optical toggle switching has been…
Giant spin-orbit torque in a single ferrimagnetic metal layer
Simon Lenne, Yong-Chang Lau, Ajay Jha +6
Antiferromagnets and compensated ferrimagnets offer opportunities to investigate spin dynamics in the 'terahertz gap' because their resonance modes lie in the 0.3 THz to 3 THz rang…
Study of the Effect of Annealing on the Properties of Mn2RuxGa Thin Films
K. E. Siewierska, G. Atcheson, K. Borisov +3
The effect of vacuum annealing thin films of the compensated ferrimagnetic half-metal Mn2RuxGa at temperatures from 250 to 400 degree Celsius is investigated. The 39.3 nm films dep…
Magnetic Dead Layers in LaSrMnO Revisited
S. B. Porter, M. Venkatesan, P. Dunne +3
The magnetic dead layers in films a few nanometers thick are investigated for LaSrMnO on (001)-oriented SrTiO (STO), LaAlO (LAO) and (LaAlO)…
Antiferromagnetic Single-layer Spin-Orbit Torque Oscillators
Roberto E. Troncoso, Karsten Rode, Plamen Stamenov +2
We show how a charge current through a single antiferromagnetic layer can excite and control self-oscillations. Sustained oscillations with tunable amplitudes and frequencies are p…
Magneto-optic Kerr effect in a spin-polarized zero-moment ferrimagnet
Karsten Fleischer, Naganivetha Thiyagarajah, Yong-Chang Lau +6
The magneto-optical Kerr effect (MOKE) is often assumed to be proportional to the magnetisation of a magnetically ordered metallic sample; in metallic ferrimagnets with chemically…
Magnetization and Anisotropy of Cobalt Ferrite Thin Films
F. Eskandari, S. B. Porter, M. Venkatesan +3
The magnetization of thin films of cobalt ferrite frequently falls far below the bulk value of 455 kAm-1, which corresponds to an inverse cation distribution in the spinel structur…
Structure, site-specific magnetism and magneto-transport properties of epitaxial D0 MnFeGa thin films
Davide Betto, Yong-Chang Lau, Kiril Borisov +5
Ferrimagnetic MnFeGa thin films have been characterised by X-ray diffraction, SQUID magnetometry, X-ray absorption spectroscopy, X-ray magnetic ci…
Designing a fully-compensated half-metallic ferrimagnet
Mario Zic, Karsten Rode, Naganivetha Thiyagarajah +8
Recent experimental work on Mn2RuxGa demonstrates its potential as a compensated ferrimagnetic half-metal (CFHM).Here we present a set of high-throughput ab initio density function…
Spin-orbit torque switching without external field with a ferromagnetic exchange-biased coupling layer
Yong-Chang Lau, Davide Betto, Karsten Rode +2
Magnetization reversal of a perpendicular ferromagnetic free layer by spin-orbit torque (SOT) is an attractive alternative to spin-transfer torque (STT) switching in magnetic rando…
Gate Tunable In- and Out-Of-Plane Spin-Orbit Coupling and Spin Splitting Anisotropy at LaAlO3/SrTiO3 (110) Interface
Kalon Gopinadhan, A. Annadi, Younghyun Kim +6
Manipulating spin-orbit coupling (SOC) is important for devices such as spin-orbit torque based memory and its understanding is neccessary to answer several fundamental open questi…