254 citations · 2.5k across the 46 of their papers we have counts for
21 papers · 1 filter
Size scaling, dynamics, and electro-thermal bifurcation of VO2 Mott oscillators
Stephanie M. Bohaichuk, Suhas Kumar, Miguel Muñoz Rojo +7
Traditional electronic devices are well-known to improve in speed and energy-efficiency as their dimensions are reduced to the nanoscale. However, this scaling behavior remains unc…
Ultrafast modification of the electronic structure of a correlated insulator
O. Grånäs I. Vaskivskyi, X. Wang, P. Thunström +25
A non-trivial balance between Coulomb repulsion and kinematic effects determines the electronic structure of correlated electron materials. The use electromagnetic fields strong en…
Microscopic manipulation of ferroelectric domains in SnSe monolayers at room temperature
Kai Chang, Felix Küster, Brandon J. Miller +5
Two-dimensional (2D) van der Waals ferroelectrics provide an unprecedented architectural freedom for the creation of artificial multiferroics and non-volatile electronic devices ba…
Perovskite-type cobalt oxide at the multiferroic Co/Pb ZrTiO interface
K. Mohseni, A. Polyakov, H. B. Vasili +13
Magnetic Tunnel Junctions whose basic element consists of two ferromagnetic electrodes separated by an insulating non-magnetic barrier have become intensely studied and used in non…
Localized Triggering of the Insulator-Metal Transition in VO2 using a Single Carbon Nanotube
Stephanie M. Bohaichuk, Miguel Muñoz Rojo, Gregory Pitner +8
Vanadium dioxide (VO2) has been widely studied for its rich physics and potential applications, undergoing a prominent insulator-metal transition (IMT) near room temperature. The t…
Instability of the topological surface state in BiSe upon deposition of gold
A. Polyakov, C. Tusche, M. Ellguth +10
Momentum resolved photoemission spectroscopy indicates the instability of the Dirac surface state upon deposition of gold on the (0001) surface of the topological insulator BiS…
Experimental Investigation of Temperature-Dependent Gilbert Damping in Permalloy Thin Films
Yuelei Zhao, Qi Song, See-Hun Yang +5
The Gilbert damping of ferromagnetic materials is arguably the most important but least understood phenomenological parameter that dictates real-time magnetization dynamics. Unders…
Investigation of the unidirectional spin heat conveyer effect in a 200nm thin Yttrium Iron Garnet film
O. Wid, J. Bauer, A. Müller +3
We have investigated the unidirectional spin wave heat conveyer effect in sub-micron thick yttrium iron garnet (YIG) films using lock-in thermography (LIT). Although the effect is…
Strength of the symmetry spin filtering effect in magnetic tunnel junctions
Sergey V. Faleev, Stuart S. P. Parkin, Oleg N. Mryasov
Strength of the the symmetry spin filtering effect (as defined by the asymptotic behavior of the tunneling magnetoresistance (TMR) at large barrier thicknesses induced by this effe…
Generation of high-frequency strain waves during femtosecond demagnetization of Fe/MgO films
T. Henighan, M. Trigo, S. Bonetti +22
We use femtosecond time-resolved hard x-ray scattering to detect coherent acoustic phonons excited during ultrafast laser demagnetization of bcc Fe films. We determine the lattice…
Brillouin zone spin filtering mechanism of enhanced TMR and correlation effects in Co(0001)/h-BN/Co(0001) magnetic tunnel junction
Sergey V. Faleev, Stuart S. P. Parkin, Oleg N. Mryasov
The 'Brillouin zone spin filtering' mechanism of enhanced tunneling magnetoresistance (TMR) is described for magnetic tunnel junctions (MTJ) and studied on an example of the MTJ wi…
X-ray magnetic circular dichroism study of epitaxial magnetite ultrathin film on MgO (100)
W. Q. Liu, M. Y. Song, N. J. Maltby +9
The spin and orbital magnetic moments of the Fe3O4 epitaxial ultrathin film synthesized by plasma assisted simultaneous oxidization on MgO(100) have been studied with X-ray magneti…
Spin injection and detection in lanthanum- and niobium-doped SrTiO3 using the Hanle technique
Wei Han, Xin Jiang, Adam Kajdos +3
There has been much interest in the injection and detection of spin polarized carriers in semiconductors for the purposes of developing novel spintronic devices. Here we report the…
Enhanced interface perpendicular magnetic anisotropy in Ta|CoFeB|MgO using nitrogen doped Ta underlayers
Jaivardhan Sinha, Masamitsu Hayashi, Andrew J. Kellock +8
We show that the magnetic characteristics of Ta|CoFeB|MgO magnetic heterostructures are strongly influenced by doping the Ta underlayer with nitrogen. In particular, the saturation…
Electronic and crystalline structures of zero band-gap PdLuBi thin films grown epitaxially on MgO(100)
Rong Shan, Siham Ouardi, Gerhard H. Fecher +8
Thin films of the proposed topological insulator PdLuBi - a Heusler compound with the C1b structure - were prepared on Ta-Mo-buffered MgO(100) substrates by co-sputtering from PdBi…
A p-type Heusler compound: Growth, structure, and properties of epitaxial thin NiYBi films on MgO(100)
Rong Shan, Siham Ouardi, Gerhard H. Fecher +7
Epitaxial semiconducting NiYBi thin films were directly prepared on MgO(100) substrates by magnetron sputtering. The intensity ratio of the (200) and (400) diffraction peaks, I(200…
Nonlocal spin transport in single walled carbon nanotube networks
Hyunsoo Yang, Mikhail E. Itkis, Rai Moriya +5
Spin transport in carbon-based materials has stimulated much interest due to their ballistic conductance and a long phase coherence length. While much research has been conducted o…
Design scheme of new multifunctional Heusler compounds for spin-transfer torque applications
J. Winterlik, S. Chadov, V. Alijani +10
This paper has been withdrawn.
Negative tunneling magnetoresistance by canted magnetization in MgO/NiO tunnel barriers
Hyunsoo Yang, See-Hun Yang, Dong-Chen Qi +6
The influence of insertion of an ultra-thin NiO layer between the MgO barrier and ferromagnetic electrode in magnetic tunnel junctions has been investigated by measuring the tunnel…
Crossover from Kondo assisted suppression to co-tunneling enhancement of tunneling magnetoresistance via ferromagnetic nanodots in MgO tunnel barriers
Hyunsoo Yang, See-Hun Yang, Stuart Parkin
Recently, it has been shown that magnetic tunnel junctions with thin MgO tunnel barriers exhibit extraordinarily high tunneling magnetoresistance (TMR) values at room temperature1,…
Tunable magnetization damping in transition metal ternary alloys
S. Ingvarsson, Gang Xiao, S. S. P. Parkin +1
We show that magnetization damping in Permalloy, Ni80Fe20 (``Py''), can be enhanced sufficiently to reduce post-switching magnetization precession to an acceptable level by alloyin…