Shehrin Sayed
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View article: An unsupervised machine learning based approach to identify efficient spin-orbit torque materials
An unsupervised machine learning based approach to identify efficient spin-orbit torque materials Open
Materials with large spin–orbit torque (SOT) hold considerable significance for many spintronic applications because of their potential for energy-efficient magnetization switching. Unfortunately, most of the existing materials exhibit an …
View article: Connecting physics to systems with modular spin-circuits
Connecting physics to systems with modular spin-circuits Open
An emerging paradigm in modern electronics is that of CMOS+ $${\mathsf{X}}$$ requiring the integration of standard CMOS technology with novel materials and technologies denoted by $${\mathsf{X}}$$ . In this context, a crucial challenge…
View article: Topological edge conduction induced by strong anisotropic exchange interactions
Topological edge conduction induced by strong anisotropic exchange interactions Open
Here, we predict that an interplay between isotropic and anisotropic exchange interactions in a honeycomb lattice structure can lead to topological edge conduction when the anisotropic interaction is at least twice the strength of the isot…
View article: Connecting physics to systems with modular spin-circuits
Connecting physics to systems with modular spin-circuits Open
An emerging paradigm in modern electronics is that of CMOS + $\sf X$ requiring the integration of standard CMOS technology with novel materials and technologies denoted by $\sf X$. In this context, a crucial challenge is to develop accurat…
View article: Tunable multistate field-free switching and ratchet effect by spin-orbit torque in canted ferrimagnetic alloy
Tunable multistate field-free switching and ratchet effect by spin-orbit torque in canted ferrimagnetic alloy Open
Spin-orbit torque is not only a useful probe to study manipulation of magnetic textures and magnetic states at the nanoscale but also it carries great potential for next-generation computing applications. Here we report the observation of …
View article: Multifunctional Spin Logic Operations in Graphene Spin Circuits
Multifunctional Spin Logic Operations in Graphene Spin Circuits Open
Spin-based computing, combining logic and nonvolatile magnetic memory, is promising for emerg-ing information technologies. However, the realization of a universal spin logic operation, representing a reconfigurable building block with all…
View article: Topological Edge Conduction Induced by Strong Anisotropic Exchange Interactions
Topological Edge Conduction Induced by Strong Anisotropic Exchange Interactions Open
We predict that an interplay between isotropic and anisotropic exchange interactions in a honeycomb lattice structure can lead to topological edge conduction when the anisotropic interaction is at least twice the strength of the isotropic …
View article: Large spin-orbit torque generated by amorphous iron silicide
Large spin-orbit torque generated by amorphous iron silicide Open
Spin-orbit torque (SOT) shows great potential for next-generation memory technology. Conventionally, the underlying physics of SOT has been associated with heavy (high-Z) elements and/or intrinsic bandstructure. Here, we report large spin-…
View article: Unsupervised machine learning-driven search for efficient spin-orbit torque materials
Unsupervised machine learning-driven search for efficient spin-orbit torque materials Open
Materials with large spin-orbit torque efficiencies are of great interest for improved magnetoresistive random access memory (MRAM) technology. Unfortunately, most of the existing spin-orbit torque materials exhibit an efficiency much less…
View article: Multifunctional Spin Logic Gates In Graphene Spin Circuits
Multifunctional Spin Logic Gates In Graphene Spin Circuits Open
All-spin-based computing combining logic and nonvolatile magnetic memory is promising for emerging information technologies. However, the realization of a universal spin logic operation representing a reconfigurable building block with all…
View article: Atomic scale understanding of the electronic structure of 5d-3d perovskite oxide heterostructures using STEM-EELS.
Atomic scale understanding of the electronic structure of 5d-3d perovskite oxide heterostructures using STEM-EELS. Open
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View article: Novel Spin–Orbit Torque Generation at Room Temperature in an All‐Oxide Epitaxial La<sub>0.7</sub>Sr<sub>0.3</sub>MnO<sub>3</sub>/SrIrO<sub>3</sub> System
Novel Spin–Orbit Torque Generation at Room Temperature in an All‐Oxide Epitaxial La<sub>0.7</sub>Sr<sub>0.3</sub>MnO<sub>3</sub>/SrIrO<sub>3</sub> System Open
Spin–orbit torques (SOTs) that arise from materials with large spin–orbit coupling offer a new pathway for energy‐efficient and fast magnetic information storage. SOTs in conventional heavy metals and topological insulators are explored ex…
View article: Novel spin-orbit torque generation at room temperature in an all-oxide epitaxial La 0.7 Sr 0.3 MnO 3 /SrIrO 3 system
Novel spin-orbit torque generation at room temperature in an all-oxide epitaxial La 0.7 Sr 0.3 MnO 3 /SrIrO 3 system Open
Spin-orbit torques (SOTs) that arise from materials with large spin-orbit coupling offer a new pathway for energy-efficient and fast magnetic information storage. SOTs in conventional heavy metals and topological insulators are explored ex…
View article: A Unified Framework for Spin-Charge Interconversion in Spin-Orbit Materials
A Unified Framework for Spin-Charge Interconversion in Spin-Orbit Materials Open
Materials with spin-orbit coupling are of great current interest for various spintronics applications due to the efficient electrical generation and detection of electron spins. Over the past decade, a large number of materials have been s…
View article: Resonant Enhancement of Exchange Coupling for Voltage-Controlled Magnetic Switching
Resonant Enhancement of Exchange Coupling for Voltage-Controlled Magnetic Switching Open
We propose an electric-field-controlled mechanism for magnetization switching\nassisted solely by the interlayer-exchange coupling (IEC) between the fixed and\nthe free magnets, which are separated by two oxide barriers sandwiching a\nspac…
View article: Spin-orbit torque generated by amorphous Fe$_{x}$Si$_{1-x}$
Spin-orbit torque generated by amorphous Fe$_{x}$Si$_{1-x}$ Open
While tremendous work has gone into spin-orbit torque and spin current generation, charge-to-spin conversion efficiency remains weak in silicon to date, generally stemming from the low spin-orbit coupling (low atomic number, Z) and lack of…
View article: Electric-Field Control of the Interlayer Exchange Coupling for Magnetization Switching
Electric-Field Control of the Interlayer Exchange Coupling for Magnetization Switching Open
We propose an electric-field-controlled mechanism for magnetization switching assisted solely by the interlayer-exchange coupling (IEC) between the fixed and the free magnets, which are separated by two oxide barriers sandwiching a spacer …
View article: Tunable charge to spin conversion in strontium iridate thin films
Tunable charge to spin conversion in strontium iridate thin films Open
© 2019 American Physical Society. Efficient charge to spin conversion is important for low-power spin logic devices. Spin and charge interconversion is commonly performed using heavy metals and topological insulators, while the field of ox…
View article: Multi-terminal spin valve in a strong Rashba channel exhibiting three resistance states
Multi-terminal spin valve in a strong Rashba channel exhibiting three resistance states Open
In a strong spin-orbit interaction system, the existence of three resistance states were observed when two ferromagnetic (FM) contacts were used as current terminals while a separate normal metal contact pair was used as voltage terminals.…
View article: Proposal of a Single Nano-Magnet Memory Device
Proposal of a Single Nano-Magnet Memory Device Open
We propose a non-volatile memory device using ferromagnetic (FM) contacts fabricated on a channel exhibiting spin-momentum locking observed in diverse materials with spin-orbit coupling like heavy metals and topological insulators. The wri…
View article: Transmission Line Model for Charge and Spin Transport in Channels with Spin-Momentum Locking
Transmission Line Model for Charge and Spin Transport in Channels with Spin-Momentum Locking Open
We provide a transmission line representation for channels exhibiting spin-momentum locking (SML) which can be used for both time-dependent and steady-state transport analysis on a wide variety of materials with spin-orbit coupling such as…
View article: An Efficient Multi-sensing and GSM Equipped Fire Monitoring System
An Efficient Multi-sensing and GSM Equipped Fire Monitoring System Open
\nThe principal goal of fire monitoring system is to react promptly to a fire and not to misleading particulate signatures produced by nuisance sources. In this paper we proposed a system that not only able to detect and prevent fire at ea…
View article: Multi-Terminal Spin Valve on Channels with Spin-Momentum Locking
Multi-Terminal Spin Valve on Channels with Spin-Momentum Locking Open
It is experimentally established that charge current flowing in a channel with spin-momentum locking such as topological insulator surface states or Rashba interfaces induces a spin voltage, which can be electrically measured with a ferrom…
View article: Spin Circuit Model for 2D Channels with Spin-Orbit Coupling
Spin Circuit Model for 2D Channels with Spin-Orbit Coupling Open
In this paper we present a general theory for an arbitrary 2D channel with “spin momentum locking” due to spin-orbit coupling. It is based on a semiclassical model that classifies all the channel electronic states into four groups based on…