Non-volatile artificial synapse based on a vortex nano-oscillator

L Martins, AS Jenkins, LSE Alvarez, J Borme… - Scientific reports, 2021 - nature.com
In this work, a new mechanism to combine a non-volatile behaviour with the spin diode
detection of a vortex-based spin torque nano-oscillator (STVO) is presented. Experimentally …

The impact of local pinning sites in magnetic tunnel junctions with non-homogeneous free layers

AS Jenkins, L Martins, LC Benetti, A Schulman… - Communications …, 2024 - nature.com
Pinning at local defects is a significant road block for the successful implementation of
technological paradigms which rely on the dynamic properties of non-trivial magnetic …

Weighted spin torque nano-oscillator system for neuromorphic computing

T Böhnert, Y Rezaeiyan, MS Claro, L Benetti… - Communications …, 2023 - nature.com
Neuromorphic computing is a promising strategy to overcome fundamental limitations, such
as enormous power consumption, by massive parallel data processing, similar to the brain …

Second harmonic injection locking of coupled spin torque vortex oscillators with an individual phase access

L Martins, AS Jenkins, J Borme, J Ventura… - Communications …, 2023 - nature.com
The synchronisation of magnetic tunnel junctions in the high frequency domain has attracted
significant interest in the context of novel computation paradigms, specifically neuromorphic …

Digital and analogue modulation and demodulation scheme using vortex-based spin torque nano-oscillators

AS Jenkins, LSE Alvarez, PP Freitas, R Ferreira - Scientific reports, 2020 - nature.com
In conventional communications systems, information is transmitted by modulating the
frequency, amplitude or phase of the carrier signal, which often occurs in a binary fashion …

Electrical characterisation of higher order spin wave modes in vortex-based magnetic tunnel junctions

AS Jenkins, LSE Alvarez, S Memshawy… - Communications …, 2021 - nature.com
NiFe-based vortex spin-torque nano-oscillators (STNO) have been shown to be rich
dynamic systems which can operate as efficient frequency generators and detectors, but …

Phase variation in the locked state of mutually synchronized spin torque nano-oscillators

A Jenkins, L Martins, L Benetti, LSE Alvarez… - Applied Physics …, 2021 - pubs.aip.org
Spin torque nano-oscillators (STNOs) have been shown to efficiently “lock” to electrical
signals whether these are from external sources, self-reflected signals, or other STNOs via …

Spintronic wireless sensor networks

AS Jenkins, L Benetti, L Martins… - IEEE Transactions …, 2021 - ieeexplore.ieee.org
Wireless sensor networks are a key aspect of emerging smart technologies, and while the
diverse range of potential applications leads to a range of system requirements, one key …