220 citations · 883 across the 24 of their papers we have counts for
13 papers · 1 filter
Quantifying the Topology of Magnetic Skyrmions in three Dimensions
David Raftrey, Simone Finizio, Rajesh V. Chopdekar +7
Magnetic skyrmions have so far been treated as two-dimensional spin structures characterized by a topological winding number describing the rotation of spins across the skyrmion. H…
Dative epitaxy of commensurate monocrystalline covalent-van der Waals moiré supercrystal
Mengying Bian, Liang Zhu, Xiao Wang +17
Realizing van der Waals (vdW) epitaxy in the 80s represents a breakthrough that circumvents the stringent lattice matching and processing compatibility requirements in conventional…
Uniaxial Néel Vector Control in Perovskite Oxide Thin Films by Anisotropic Strain Engineering
K. Kjærnes, I. Hallsteinsen, R. V. Chopdekar +5
Antiferromagnetic thin films typically exhibit a multi-domain state, and control of the antiferromagnetic Néel vector is challenging as antiferromagnetic materials are robust to ma…
Controlling spin current polarization through non-collinear antiferromagnetism
T. Nan, C. X. Quintela, J. Irwin +20
The spin-Hall effect describes the interconversion of charge currents and spin currents, enabling highly efficient manipulation of magnetization for spintronics. Symmetry condition…
Interfacial-Redox-Induced Tuning of Superconductivity in YBaCuO
Peyton D. Murray, Dustin A. Gilbert, Alexander J. Grutter +13
Solid state ionic approaches for modifying ion distributions in getter/oxide heterostructures offer exciting potentials to control material properties. Here we report a simple, sca…
Ionic Tuning of Cobaltites at the Nanoscale
Dustin A. Gilbert, Alexander J. Grutter, Peyton D. Murray +13
Control of materials through custom design of ionic distributions represents a powerful new approach to develop future technologies ranging from spintronic logic and memory devices…
Nanostructured complex oxides as a route towards thermal behavior in artificial spin ice systems
Rajesh V. Chopdekar, Binzhi Li, Thomas A. Wynn +8
We have used soft x-ray photoemission electron microscopy to image the magnetization of single domain LaSrMnO nano-islands arranged in geometrically frustrate…
Domain-resolved room-temperature magneto-electric coupling in manganite-titanate heterostructures
Rajesh Vilas Chopdekar, Michele Buzzi, Catherine Ann Jenkins +3
We present a model artificial multiferroic system consisting of a (011)-oriented ferroelectric Pb(Mg,Nb,Ti)O substrate intimately coupled to a ferromagnetic (La,Sr)MnO film…
Magnetoelectro-elastic control of magnetism in an artificial multiferroic
J. Heidler, M. Fechner, R. V. Chopdekar +7
We study the coexistence of strain- and charge-mediated magnetoelectric coupling in a cobalt (0-7 nm) wedge on ferroelectric [Pb(Mg/Nb)O]-[PbTiO$_{3}…
The role of magnetic anisotropy in spin filter junctions
R. V. Chopdekar, B. B. Nelson-Cheeseman, M. Liberati +2
We have fabricated oxide based spin filter junctions in which we demonstrate that magnetic anisotropy can be used to tune the transport behavior of spin filter junctions. Until rec…
Potential barrier lowering and electrical transport at the LaAlO/SrTiO heterointerface
Franklin J. Wong, Miaofang Chi, Rajesh V. Chopdekar +3
Using a combination of vertical transport measurements across and lateral transport measurements along the LaAlO/SrTiO heterointerface, we demonstrate that significant…
Electrical transport and ferromagnetism in Ga1-xMnxAs synthesized by ion implantation and pulsed-laser melting
M. A. Scarpulla, R. Farshchi, P. R. Stone +4
We present a detailed investigation of the magnetic and magnetotransport properties of thin films of ferromagnetic Ga1-xMnxAs synthesized using ion implantation and pulsed-laser me…
Hydrogen patterning of Ga1-xMnxAs for planar spintronics
R. Farshchi, P. D. Ashby, D. J. Hwang +4
We demonstrate two patterning techniques based on hydrogen passivation of Ga1-xMnxAs to produce isolated ferromagnetically active regions embedded uniformly in a paramagnetic, insu…