235 citations · 1k across the 17 of their papers we have counts for
17 papers
Enhanced controllable triplet proximity effect in superconducting spin-orbit coupled spin valves with modified superconductor/ferromagnet interfaces
Alex T. Bregazzi, Jabir A. Ouassou, Arthur G. Coveney +7
In a superconductor/ferromagnet hybrid, a magnetically controlled singlet-to-triplet Cooper pair conversion can modulate the superconducting critical temperature. In these triplet…
Thermopower and Unconventional Nernst in the Predicted Type-II Weyl Semi-metal WTe
K. Gaurav Rana, Fasil K. Dejene, Neeraj Kumar +4
WTe is one of a series of recently discovered high mobility semimetals, some of whose properties are characteristic of topological Dirac or Weyl metals. One of its most interes…
Magnetic and electrical transport signatures of uncompensated moments in epitaxial thin films of the non-collinear antiferromagnet MnIr
James M. Taylor, Edouard Lesne, Anastasios Markou +13
Non-collinear antiferromagnets, with either an L1 cubic crystal lattice (e.g. MnIr and MnPt) or a D0 hexagonal structure (e.g. MnSn and MnGe),…
Epitaxial growth, structural characterization and exchange bias of non-collinear antiferromagnetic MnIr thin films
James M. Taylor, Edouard Lesne, Anastasios Markou +8
Antiferromagnetic materials are of great interest for spintronics. Here we present a comprehensive study of the growth, structural characterization, and resulting magnetic properti…
Temperature dependence of the effective spin-mixing conductance probed with lateral non-local spin valves
K. S. Das, F. K. Dejene, B. J. van Wees +1
We report the temperature dependence of the effective spin-mixing conductance between a normal metal (aluminium, Al) and a magnetic insulator (,…
Thermal Control of the Magnon-Photon Coupling in a Notch Filter coupled to a Yttrium-Iron-Garnet/Platinum System
Vincent Castel, Rodolphe Jeunehomme, Jamal Ben Youssef +4
We report thermal control of mode hybridization between the ferromagnetic resonance (FMR) and a planar resonator (notch filter) working at 4.74 GHz. The chosen magnetic material is…
Anisotropic Hanle lineshape via anisotropic magnetothermoelectric phenomena
K. S. Das, F. K. Dejene, B. J. van Wees +1
We observe anisotropic Hanle lineshape with unequal in-plane and out-of-plane non-local signals for spin precession measurements carried out on lateral metallic spin valves with tr…
Direct electronic measurement of Peltier cooling and heating in graphene
I. J. Vera-Marun, J. J. van den Berg, F. K. Dejene +1
Thermoelectric effects allow the generation of electrical power from waste heat and the electrical control of cooling and heating. Remarkably, these effects are also highly sensiti…
Detection of spin pumping from YIG by spin-charge conversion in a Au/NiFe spin-valve structure
Nynke Vlietstra, Fasil K. Dejene, Bart J. van Wees
Many experiments have shown the detection of spin-currents driven by radio-frequency spin pumping from yttrium iron garnet (YIG), by making use of the inverse spin-Hall effect, whi…
Comparison of the magneto-Peltier and magneto-Seebeck effects in magnetic tunnel junctions
J. Shan, F. K. Dejene, J. C. Leutenantsmeyer +3
Understanding heat generation and transport processes in a magnetic tunnel junction (MTJ) is a significant step towards improving its application in current memory devices. Recent…
Control of spin current by a magnetic YIG substrate in NiFe/Al nonlocal spin valves
F. K. Dejene, N. Vlietstra, D. Luc +3
We study the effect of a magnetic insulator (Yttrium Iron Garnet - YIG) substrate on the spin transport properties of NiFe/Al nonlocal spin valve (NLSV) devices. The…
Comparison between thermal and current driven spin-transfer torque in nanopillar metallic spin valves
J. Flipse, F. K. Dejene, B. J. van Wees
We investigate the relation between thermal spin-transfer torque (TSTT) and the spin-dependent Seebeck effect (SDSE), which produces a spin current when a temperature gradient is a…
Observation of the spin Peltier effect
J. Flipse, F. K. Dejene, D. Wagenaar +3
We report the observation of the spin Peltier effect (SPE) in the ferrimagnetic insulator Yttrium Iron Garnet (YIG), i.e. a heat current generated by a spin current flowing through…
Spin heat accumulation and spin-dependent temperatures in nanopillar spin valves
F. K. Dejene, J. Flipse, G. E. W. Bauer +1
Since the discovery of the giant magnetoresistance (GMR) effect the use of the intrinsic angular momentum of the electrons has opened up new spin based device concepts. The two cha…
Spin-dependent Seebeck coefficients of Ni_{80}Fe_{20} and Co in nanopillar spin valves
F. K. Dejene, J. Flipse, B. J. van Wees
We have experimentally determined the spin-dependent Seebeck coefficient of permalloy (Ni_{80}Fe_{20}) and cobalt (Co) using nanopillar spin valve devices. The devices were specifi…
Cooling and heating with electron spins: Observation of the spin Peltier effect
J. Flipse, F. L. Bakker, A. Slachter +2
The Peltier coefficient describes the amount of heat that is carried by an electrical current when it passes through a material. Connecting two materials with different Peltier coe…
Comparison between charge and spin transport in few layer graphene
T. Maassen, F. K. Dejene, M. H. D. Guimarães +2
Transport measurements on few layer graphene (FLG) are important as they interpolate between the properties of single layer graphene (SLG) as a true 2-dimensional material and the…