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We fabricated and characterized a new spin-functional MOSFET referred to as a pseudo-spin-MOSFET (PS-MOSFET). The PS-MOSFET is a circuit using an ordinary MOSFET and magnetic tunnel junction (MTJ) for reproducing functions of…

Nano-electronic integrated circuit technology is exclusively based on MOSFET transistor due to its scalability down to the nanometer range. On the other hand, Bipolar Junction Transistor (BJT), which provides unmatched analog…

介观与纳米尺度物理 · 物理学 2021-08-03 Farshid Raissi , Mina Amirmazlaghani , Ali Rajabi

Significant scientific and technological progress in the field of spintronics is based on trilayer magnetic tunnel junction devices which principally rely on the physics of single barrier tunneling. While technologically relevant devices…

介观与纳米尺度物理 · 物理学 2019-11-14 Abhishek Sharma , Ashwin. A. Tulapurkar , Bhaskaran Muralidharan

Neuro-inspired computing architectures are one of the leading candidates to solve complex, large-scale associative learning problems. The two key building blocks for neuromorphic computing are the synapse and the neuron, which form the…

应用物理 · 物理学 2019-01-16 Boyang Zhao , Jayakanth Ravichandran

This paper discovers that the magnetic tunnel junction (MTJ) structure is successfully magnetized with hybrid microwave annealing, confirmed by the tunneling magnetoresistance (TMR) and Coercivity (Hc) results. Hybrid microwave annealing…

In existing superconducting electronic systems, Josephson junctions play a central role in processing and transmitting small-amplitude electrical signals. However, Josephson-junction-based devices have a number of limitations including: (1)…

超导电性 · 物理学 2015-06-19 Adam N. McCaughan , Karl K. Berggren

Ensuring high performance, while meeting the power budget is a challenging task as the world is moving towards next-generation computing. Researchers and designers are in search of new solutions for efficient computation. Spintronics…

应用物理 · 物理学 2022-08-31 Jagadish Rajpoot , Ravneet Paul , Shivam Verma

Building large-scale superconducting quantum circuits will require miniaturisation and integration of supporting devices including microwave circulators, which are currently bulky, stand-alone components. Here we report the realisation of a…

Spintronic rf detectors were demonstrated, recently, for energy harvesting and wireless communication at low input power. Here we report on the optimization of the rectified output dc voltage using magnetic tunnel junctions (MTJ) with…

We demonstrate a technique of broadband spin torque ferromagnetic resonance (ST-FMR) with magnetic field modulation for measurements of spin wave properties in magnetic nanostructures. This technique gives great improvement in sensitivity…

介观与纳米尺度物理 · 物理学 2013-10-31 A. M. Gonçalves , I. Barsukov , Y. -J. Chen , L. Yang , J. A. Katine , I. N. Krivorotov

We propose a novel concept of obtaining oscillations with frequencies in very-high frequency (VHF) and ultra-high frequency (UHF) bands. A traditional spin torque nano-oscillator (STNO) consists of at least one pinned layer (PL) and one…

介观与纳米尺度物理 · 物理学 2017-06-05 Gaurav Gupta , Zhifeng Zhu , Gengchiau Liang

A technique for rapidly detecting microwave phase has been developed which uses a spintronic device that can directly rectify microwave fields into a dc voltage signal. Use of a voltage-controlled phase shifter enables the development of a…

介观与纳米尺度物理 · 物理学 2014-03-05 B. M. Yao , L. Fu , X. S. Chen , W. Lu , L. H. Bai , Y. S. Gui , C. -M. Hu

Manipulation of tunneling spin-polarized electrons via a ferroelectric interlayer sandwiched between two ferromagnetic electrodes, dubbed Multiferroic Tunnel Junctions (MFTJs), can be achieved not only by the magnetic alignments of two…

材料科学 · 物理学 2019-11-26 Mei Fang , Sangjian Zhang , Wenchao Zhang , Lu Jiang , Eric Vetter , Ho Nyung Lee , Xiaoshan Xu , Dali Sun , Jian Shen

High impedance (about 1 Megaohm) magnetic tunnel junctions (MTJs) are used to observe and record the magnetodynamics of the nanomagnets that form the junctions themselves. To counteract the bandwidth limitations caused by the high impedance…

介观与纳米尺度物理 · 物理学 2018-09-21 Jason Dark , Hanbin Ying , Grant Nunn , John D. Cressler , Dragomir Davidovic

We experimentally study spin-Hall nano-oscillators based on [Co/Ni] multilayers with perpendicular magnetic anisotropy. We show that these devices are capable of single-frequency auto-oscillations at current densities comparable to those in…

介观与纳米尺度物理 · 物理学 2017-07-19 B. Divinskiy , V. E. Demidov , A. Kozhanov , A. B. Rinkevich , S. O. Demokritov , S. Urazhdin

Magnetic skyrmion is a topologically protected domain-wall structure at nanoscale, which could serve as a basic building block for advanced spintronic devices. Here, we propose a microwave field-driven skyrmionic device with the…

介观与纳米尺度物理 · 物理学 2019-04-18 Jing Xia , Yangqi Huang , Xichao Zhang , Wang Kang , Chentian Zheng , Xiaoxi Liu , Weisheng Zhao , Yan Zhou

Two-dimensional (2D) van der Waals (vdW) magnets with layer-dependent magnetic states and/or diverse magnetic interactions and anisotropies have attracted extensive research interest. Despite the advances, a notable challenge persists in…

Van der Waals (vdW) heterostructures have opened new opportunities to develop atomically thin (opto)electronic devices with a wide range of functionalities. The recent focus on manipulating the interlayer twist angle has led to the…

Altermagnets demonstrate significant potential in spintronics due to their unique non-relativistic spin-splitting properties, yet altermagnetic devices still face challenges in efficiently switching logic states. Here, we report…

材料科学 · 物理学 2026-02-17 Yunfei Gao , Aolin Li , Zesen Fu , Bei Zhang , Haiming Duan , Fangping Ouyang

Spin-torque nano-oscillators (STNOs) are a type of nanoscale microwave auto-oscillators utilizing spin-torque to generate magnetodynamics with great promise for applications in microwaves, magnetic memory, and neuromorphic computing. Here,…

应用物理 · 物理学 2023-03-16 Sheng Jiang , Sunjae Chung , Quang Tuan Le , Ping Kwan Johnny Wong , Wen Zhang , Johan Åkerman