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The spin Hall effect (SHE) is an important spintronics phenomenon, which allows transforming a charge current into a spin current and vice versa without the use of magnetic materials or magnetic fields. To gain new insight into the physics…

The increasing development of wireless communication bands has motivated the development of compact, low-loss, and frequency adjustable RF filtering technologies. Acoustic resonators are the ideal solution to these requirements, and tunable…

Systems and Control · Electrical Eng. & Systems 2026-02-19 Ian Anderson , Agham Posadas , Alexander A. Demkov , Ruochen Lu

We show that the spin Hall conductivity in insulators is related with a magnetic susceptibility representing the strength of the spin-orbit coupling. We use this relationship as a guiding principle to search real materials showing quantum…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 Shuichi Murakami

Hardware implementations of the Ising model offer promising solutions to large-scale optimization tasks. In the literature, various nanodevices have been shown to emulate the spin dynamics for such Ising machines with remarkable…

Superconducting microwave resonators play a pivotal role in superconducting quantum circuits. The ability to fine-tune their resonant frequencies provides enhanced control and flexibility. Here, we introduce a frequency-tunable…

The development of spintronic oscillators is driven by their potential applications in radio frequency telecommunication and neuromorphic computing. In this work, we propose a spintronic oscillator based on the chiral coupling in thin…

Mesoscale and Nanoscale Physics · Physics 2021-06-07 Zhiyang Zeng , Zhaochu Luo , Laura J. Heyderman , Joo-Von Kim , Aleš Hrabec

We propose a new mechanism and a related device concept for a robust, magnetic field tunable radio-frequency (rf) oscillator using the self oscillation of a magnetic domain wall subject to a uniform static magnetic field and a spatially…

Mesoscale and Nanoscale Physics · Physics 2015-10-06 Sanchar Sharma , Bhaskaran Muralidharan , Ashwin Tulapurkar

We report a magneto-induced topological phase transition in inverted InAs/GaSb bilayers from a quantum spin Hall insulator to a normal insulator. We utilize a dual-gated Corbino device in which the degree of band inversion, or equivalently…

Mesoscale and Nanoscale Physics · Physics 2024-12-24 Zhongdong Han , Tingxin Li , Long Zhang , Rui-Rui Du

We demonstrate and experimentally validate an end-to-end hybrid CMOS-memristor auditory encoder that realises adaptive-threshold, asynchronous delta-modulation (ADM)-based spike encoding by exploiting the inherent volatility of HfTiOx…

Audio and Speech Processing · Electrical Eng. & Systems 2025-12-08 Dongxu Guo , Deepika Yadav , Patrick Foster , Spyros Stathopoulos , Mingyi Chen , Themis Prodromakis , Shiwei Wang

We study the current tunable microwave signal properties of nano-constriction based spin Hall nano-oscillators (SHNOs) in oblique magnetic fields as a function of the nano-constriction width, $w=$~50--140 nm. The threshold current is found…

Mesoscale and Nanoscale Physics · Physics 2020-07-15 Ahmad A. Awad , Afshin Houshang , Mohammad Zahedinejad , Roman Khymyn , Johan Åkerman

In the race towards "beyond 6G" telecommunication platforms, magnonics emerges as a promising solution due to its wide tunability within the FR3 band (7-24 GHz). So far, however, the need for an external magnetic bias field to allow the…

Surface acoustic waves (SAWs) provide an efficient dynamical coupling between strain and magnetization in micro/nano-metric devices. Using a hybrid device composed of a piezoelectric, GaAs, and a ferromagnetic Heusler alloy thin film,…

Spintronics has emerged as a promising field for next-generation devices, offering functionalities beyond complementary metal-oxide-semiconductor (CMOS). A critical challenge in spintronics is to develop systems that can efficiently…

Mesoscale and Nanoscale Physics · Physics 2026-01-12 Zhendong Chi , Eoin Dolan , Haozhe Yang , Beatriz Martín-García , Marco Gobbi , Luis E. Hueso , Fèlix Casanova

Exchange coupling in an interfacial context is crucial for spin-torque nano oscillator (STNO) that consists of a non-magnetic spacer which is alloyed with a ferromagnetic material. Currently, investigations on the dynamics of the free layer…

Mesoscale and Nanoscale Physics · Physics 2023-07-12 R. Arun , R. Gopal , V. K. Chandrasekar , M. Lakshmanan

A combined bottom-up assembly of electrodeposited nanowires and electron beam lithography technique has been developed to investigate the spin transfer torque and microwave emission on specially designed nanowires containing a single…

Materials Science · Physics 2015-06-12 F. Abreu Araujo , L. Piraux , V. A. Antohe , V. Cros , L. Gence

The concept of spin torque driven high frequency magnetization dynamics has opened up the field of spintronics to non-linear physics, potentially in complex networks of dynamical systems. In the scarce demonstrations of synchronized…

Mesoscale and Nanoscale Physics · Physics 2017-12-21 R. Lebrun , S. Tsunegi , P. Bortolotti , H. Kubota , A. S. Jenkins , M. Romera , K. Yakushiji , A. Fukushima , J. Grollier , S. Yuasa , V. Cros

Spin torque nano-oscillators (STNO) are nanoscale devices with wide band frequency tunability. Their multifunctional RF properties are well suited to define novel schemes for wireless communications that use basic protocols for data…

Applied Physics · Physics 2021-09-01 A. Litvinenko , P. Sethi , C. Murapaka , A. Jenkins , V. Cros , P. Bortolotti , R. Ferreria , B. Dieny , U. Ebels

The magnetoelectronic coupling can be defined as cross-domain coupling between electronic and magnetic properties, where modulation in magnetic properties changes the electronic properties. In this letter, an explicit experimental evidence…

Mesoscale and Nanoscale Physics · Physics 2024-02-27 Paul C. Lou , Ravindra G. Bhardwaj , Anand Katailiha , W. P. Beyermann , Sandeep Kumar

Spin torque oscillators are spintronic devices that generate a periodic output signal from a non-periodic input, making them promising candidates for applications like microwave communications and neuromorphic computing. However,…

Mesoscale and Nanoscale Physics · Physics 2024-07-02 Daniel Kubler , David A. Smith , Tommy Nguyen , Fernando Ramos-Diaz , Satoru Emori , Vivek P. Amin

This paper presents a physics-based modeling framework for the analysis and transient simulation of circuits containing Spin-Transfer Torque (STT) Magnetic Tunnel Junction (MTJ) devices. The framework provides the tools to analyze the…

Emerging Technologies · Computer Science 2021-06-10 Fernando García-Redondo , Pranay Prabhat , Mudit Bhargava , Cyrille Dray
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