Ryan F. Need
YOU?
Author Swipe
View article: Epitaxial stabilization and oxygen vacancy control of EuNiO3 thin films
Epitaxial stabilization and oxygen vacancy control of EuNiO3 thin films Open
Rare-earth nickelates exhibit valuable behavior for neuromorphic computing at low temperature: Building blocks for biologically inspired microelectronic neurons like electrically driven insulator–metal transitions (IMTs), negative differen…
View article: Reduction-Induced Magnetic Behavior in LaFeO3−δ Thin Films
Reduction-Induced Magnetic Behavior in LaFeO3−δ Thin Films Open
The effect of oxygen reduction on the magnetic properties of LaFeO3−δ (LFO) thin films was studied to better understand the viability of LFO as a candidate for magnetoionic memory. Differences in the amount of oxygen lost by LFO and its ma…
View article: Magnetic structure and properties of the compositionally complex perovskite (Y<sub>0.2</sub>La<sub>0.2</sub>Pr<sub>0.2</sub>Nd<sub>0.2</sub>Tb<sub>0.2</sub>)MnO<sub>3</sub>
Magnetic structure and properties of the compositionally complex perovskite (Y<sub>0.2</sub>La<sub>0.2</sub>Pr<sub>0.2</sub>Nd<sub>0.2</sub>Tb<sub>0.2</sub>)MnO<sub>3</sub> Open
The magnetic structure and properties were measured in a compositionally complex perovskite manganite possessing local spin disorder on the A-site and found to be similar to an undisordered control.
View article: Superconductivity in Compositionally-Complex Cuprates with the YBa$_2$Cu$_3$O$_{7-x}$ Structure
Superconductivity in Compositionally-Complex Cuprates with the YBa$_2$Cu$_3$O$_{7-x}$ Structure Open
High-temperature superconductivity is reported in a series of compositionally-complex cuprates with varying degrees of size and spin disorder. Three compositions of Y-site alloyed YBa$_2$Cu$_3$O$_{7-x}$, i.e., (5Y)BCO, were prepared using …
View article: Reconfigurable NEMS based Advance Packaging for Anti Reverse Engineering and Counterfeiting
Reconfigurable NEMS based Advance Packaging for Anti Reverse Engineering and Counterfeiting Open
The chips used in modern electronic devices are mainly manufactured and packaged by Outsourced Semiconductor Assembly and Test (OSAT) facilities and are potentially vulnerable to hardware attacks. Due to the complexity of the global supply…
View article: Composite Spin Hall Conductivity from Non‐Collinear Antiferromagnetic Order
Composite Spin Hall Conductivity from Non‐Collinear Antiferromagnetic Order Open
Non‐collinear antiferromagnets (AFMs) are an exciting new platform for studying intrinsic spin Hall effects (SHEs), phenomena that arise from the materials’ band structure, Berry phase curvature, and linear response to an external electric…
View article: Band structure and polarization effects in photothermoelectric spectroscopy of a Bi2Se3 device
Band structure and polarization effects in photothermoelectric spectroscopy of a Bi2Se3 device Open
Bi2Se3 is a prototypical topological insulator, which has a small bandgap (∼0.3 eV) and topologically protected conducting surface states. This material exhibits quite strong thermoelectric effects. Here, we show in a mechanically exfoliat…
View article: Ferromagnetic Materials: Strong Ferromagnetism Achieved via Breathing Lattices in Atomically Thin Cobaltites (Adv. Mater. 4/2021)
Ferromagnetic Materials: Strong Ferromagnetism Achieved via Breathing Lattices in Atomically Thin Cobaltites (Adv. Mater. 4/2021) Open
In article number 2001324, the authors report the achievement of strong ferromagnetism in atomically thin cobaltite by local structural modification, where a surprisingly large magnetic moment and Curie temperature are observed. Thus, a st…
View article: Strong Ferromagnetism Achieved via Breathing Lattices in Atomically Thin Cobaltites
Strong Ferromagnetism Achieved via Breathing Lattices in Atomically Thin Cobaltites Open
Low-dimensional quantum materials that remain strongly ferromagnetic down to mono layer thickness are highly desired for spintronic applications. Although oxide materials are important candidates for next generation of spintronic, ferromag…
View article: Kondo physics in antiferromagnetic Weyl semimetal Mn <sub> 3+ <i>x</i> </sub> Sn <sub> 1− <i>x</i> </sub> films
Kondo physics in antiferromagnetic Weyl semimetal Mn <sub> 3+ <i>x</i> </sub> Sn <sub> 1− <i>x</i> </sub> films Open
Evolution of Kondo effect in Weyl semimetal Mn 3 Sn leads to extraordinary terahertz and DC transport properties.
View article: Using structural phase transitions to enhance the coercivity of ferromagnetic films
Using structural phase transitions to enhance the coercivity of ferromagnetic films Open
Storing information in magnetic recording technologies requires careful optimization of the recording media’s magnetic properties. For example, heat-assisted magnetic recording (HAMR) relies on a prerecording heating step that momentarily …
View article: Revealing Optical Transitions and Carrier Recombination Dynamics within the Bulk Band Structure of Bi<sub>2</sub>Se<sub>3</sub>
Revealing Optical Transitions and Carrier Recombination Dynamics within the Bulk Band Structure of Bi<sub>2</sub>Se<sub>3</sub> Open
Bismuth selenide (Bi2Se3) is a prototypical 3D topological insulator whose Dirac surface states have been extensively studied theoretically and experimentally. Surprisingly little, however, is known about the energetics and dynamics of ele…
View article: Magnetoentropic signatures of skyrmionic phase behavior in FeGe
Magnetoentropic signatures of skyrmionic phase behavior in FeGe Open
We demonstrate that magnetocaloric measurements can rapidly reveal details of the phase diagrams of high-temperature skyrmion hosts, concurrently yielding quantitative latent heats of the field-driven magnetic phase transitions. Our approa…
View article: Quasistatic antiferromagnetism in the quantum wells of SmTiO3/SrTiO3 heterostructures
Quasistatic antiferromagnetism in the quantum wells of SmTiO3/SrTiO3 heterostructures Open
High carrier density quantum wells embedded within a Mott insulating matrix present a rich arena for exploring unconventional electronic phase behavior ranging from non-Fermi-liquid transport and signatures of quantum criticality to pseudo…
View article: Induced Magnetism and Symmetry Breaking within Strongly Correlated Oxide Heterostructures
Induced Magnetism and Symmetry Breaking within Strongly Correlated Oxide Heterostructures Open
In strongly correlated electron systems, the independent electron approximation fails and electron-electron correlations must be taken into consideration. Such systems display an abundance of technologically useful behaviors including meta…
View article: Interface-Driven Ferromagnetism within the Quantum Wells of a Rare Earth Titanate Superlattice
Interface-Driven Ferromagnetism within the Quantum Wells of a Rare Earth Titanate Superlattice Open
Here we present polarized neutron reflectometry measurements exploring thin film heterostructures composed of a strongly correlated Mott state, GdTiO_{3}, embedded with SrTiO_{3} quantum wells. Our results reveal that the net ferromagnetis…