57 citations · 280 across the 19 of their papers we have counts for
19 papers
Boundary-induced phase in epitaxial iron layers
Anna L. Ravensburg, Mirosław Werwiński, Justyna Rychły-Gruszecka +9
We report the discovery of a boundary-induced body-centered tetragonal (bct) iron phase in thin films deposited on MgAlO () substrates. We present evidence for thi…
Terahertz emission from -W/CoFe epitaxial spintronic emitters
Venkatesh Mottamchetty, Rimantas Brucas, Anna L. Ravensburg +8
We report efficient terahertz (THz) generation in epitaxial -W/CoFe spintronic emitters. Two types of emitters have been investigated; epitaxial -W/Co$_{…
Epitaxy enhancement in oxide/tungsten heterostructures by harnessing the interface adhesion
Anna L. Ravensburg, Rimantas Brucas, Denis Music +4
The conditions whereby epitaxy is achieved are commonly believed to be mostly governed by misfit strain. We report on a systematic investigation of growth and interface structure o…
Direct evidence of terahertz emission arising from anomalous Hall effect
V. Mottamchetty, P. Rani, R. Brucas +3
A detailed understanding of the different mechanisms being responsible for terahertz (THz) emission in ferromagnetic (FM) materials will aid in designing efficient THz emitters. In…
Strain Engineering of Epitaxial Pt/Fe Spintronic Terahertz Emitter
Rahul Gupta, Ebrahim Bagherikorani, Venkatesh Mottamchetty +8
Spin-based terahertz (THz) emitters, utilizing the inverse spin Hall effect, are ultra-modern sources for the generation of THz electromagnetic radiation. To make a powerful emitte…
Giant spin-orbit torque efficiency in all-epitaxial heterostructures
Nilamani Behera, Rahul Gupta, Sajid Husain +10
A large anti-damping spin-obit torque (SOT) efficiency in magnetic heterostructures is a prerequisite to realize energy efficient spin torque based magnetic memories and logic devi…
CoFeAl full Heusler compound based spintronic terahertz emitter
Rahul Gupta, Sajid Husain, Ankit Kumar +3
To achieve a large terahertz (THz) amplitude from a spintronic THz emitter (STE), materials with 100\% spin polarisation such as Co-based Heusler compounds as the ferromagnetic lay…
Damping-like Torque in Monolayer 1T-TaS
Sajid Husain, Xin Chen, Rahul Gupta +9
A damping-like spin orbit torque (SOT) is a prerequisite for ultralow power spin logic devices. Here, we report on the damping-like SOT in just one monolayer of the conducting tran…
Impact of the crystal orientation on spin-orbit torques in Fe/Pd bilayers
Ankit Kumar, Nilamani Behera, Rahul Gupta +5
Spin-orbit torques in ferromagnetic (FM)/non-magnetic (NM) heterostructures offer more energy-efficient means to realize spin-logic devices; however, their strengths are determined…
Spin pumping and spin torque in interfacial tailored Co2FeAl/\b{eta}-Ta layers
Ankit Kumar, Rahul Gupta, Sajid Husain +5
The Heusler ferromagnetic (FM) compound Co2FeAl interfaced with a high-spin orbit coupling non-magnetic (NM) layer is a promising candidate for energy efficient spin logic circuits…
Engineering of spin mixing conductance in Ru/FeCo/Ru interfaces: Effect of Re Doping
Rahul Gupta, Nilamani Behera, Vijay A. Venugopal +6
We have deposited polycrystalline Re doped (0 x 12.6 at\%) thin films grown under identical conditions and sandwiched between thin la…
Extraordinary efficient spin-orbit torque switching in (W, Ta)/epitaxial-Co60Fe40/TiN heterostructures
Nilamani Behera, Rahul Gupta, Sajid Husain +6
The giant spin Hall effect in magnetic heterostructures along with low spin memory loss and high interfacial spin mixing conductance are prerequisites to realize energy efficient s…
Enhanced Gilbert Damping in Re doped FeCo Films: A Combined Experimental and Theoretical Study
Serkan Akansel, Ankit Kumar, Vijayahahan A. Venugopal +10
The effects of rhenium doping in the range 0 to 10 atomic percent on the static and dynamic magnetic properties of Fe65Co35 thin films have been studied experimentally as well as w…
Collective magnetization dynamics in nano-arrays of thin FePd discs
Agne Ciuciulkaite, Erik Östman, Rimantas Brucas +5
We report on the magnetization dynamics of a square array of mesoscopic discs, fabricated from an iron palladium alloy film. The dynamics properties were explored using ferromagnet…
Effect of in-situ electric field assisted growth on anti-phase boundaries in epitaxial Fe3O4 thin films on MgO
Ankit Kumar, Erik Wetterskog, Erik Lewin +7
Anti-phase boundaries (APBs) normally form as a consequence of the initial growth conditions in all spinel ferrite thin films. The presence of APBs in epitaxial films of the invers…
Temperature-dependent Gilbert damping of Co2FeAl thin films with different degree of atomic order
Ankit Kumar, Fan Pan, Sajid Husain +5
Half-metallicity and low magnetic damping are perpetually sought for in spintronics materials and full Heusler alloys in this respect provide outstanding properties. However, it is…
Tailoring the magnetodynamic properties of nanomagnets using magnetocrystalline and shape anisotropies
Vegard Flovik, Ferran Macià, Joan Manel Hernàndez +3
Magnetodynamical properties of nanomagnets are affected by the demagnetizing fields created by the same nanoelements. In addition, magnetocrystalline anisotropy produces an effecti…
Solid phase epitaxy of ferromagnetic MnAs dots on GaMnAs layers
J. Sadowski, M. Adell, J. Kanski +6
Formation of MnAs quantum dots in a regular ring-like distribution has been found on MBE-grown (GaMn)As surfaces after low-temperature annealing under As capping. The Mn was suppli…
Proximity effect of vanadium on spin-density-wave magnetism in Cr films
E. Kravtsov, R. Brucas, B. Hjorvarsson +5
The spin-density wave (SDW) state in thin chromium films is well known to be strongly affected by proximity effects from neighboring layers. To date the main attention has been giv…