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We report on electrical spin injection measurements on MWNTs . We use a ferromagnetic alloy Pd$_{1-x}$Ni$_{x}$ with x $\approx$ 0.7 which allows to obtain devices with resistances as low as 5.6 $k\Omega$ at 300 $K$. The yield of device…

介观与纳米尺度物理 · 物理学 2016-08-16 S. Sahoo , T. Kontos , C. Schönenberger , C. Sürgers

This paper proposes a reconfigurable bidirectional array antenna with high-efficiency radiations and flexible beam-switching capability by employing a novel transmit-reflect switchable metasurface (TRSM). To realize the electromagnetic (EM)…

系统与控制 · 电气工程与系统科学 2025-05-14 Fan Qin , Jinyang Bi , Jiao Ma , Chao Gu , Hailin Zhang , Wenchi Cheng , Steven Gao

We show that in pulsed electrically detected magnetic resonance (pEDMR) signal modulation in combination with a lock-in detection scheme can reduce the low-frequency noise level by one order of magnitude and in addition removes the…

A simplified analytical model of the resonant interaction of the beam of Larmor electrons drifting in the crossed constant fields of a magnetron with a synchronous wave providing a phase grouping of the drifting charge was developed to…

加速器物理 · 物理学 2018-07-27 G. Kazakevich , R. Johnson , V. Lebedev , V. Yakovlev , V. Pavlov

A method of switching a controlled-NOT gate in a solid-stae NMR quantum computer is presented. Qubits of I=1/2 nuclear spins are placed periodically along a quantum spin chain (1-D antiferromagnet) having a singlet ground state with a…

量子物理 · 物理学 2009-11-07 Atsushi Goto , Tadashi Shimizu , Kenjiro Hashi , Hideaki Kitazawa

In this paper, we investigate the performance analysis of dual hop relaying system consisting of asymmetric Radio Frequency (RF)/Free Optical Space (FSO) links. The RF channels follow a Rayleigh distribution and the optical links are…

信号处理 · 电气工程与系统科学 2019-01-17 Elyes Balti , Mohsen Guizani , Bechir Hamdaoui , Yassine Maalej

Nanowire heterostructures define high-quality few-electron quantum dots for nanoelectronics, spintronics and quantum information processing. We use a cooled scanning probe microscope (SPM) to image and control an InAs quantum dot in an…

介观与纳米尺度物理 · 物理学 2009-11-13 A. C. Bleszynski-Jayich , L. E. Froberg , M. T. Bjork , H. J. Trodahl , L. Samuelson , R. M. Westervelt

This paper proposes a novel wireless, battery-free, and label-free biosensor for minimally invasive and non-invasive permittivity sensing for applications such as detecting glucose levels in the interstitial dermal fluid. The miniaturized,…

应用物理 · 物理学 2022-10-19 Rehab S. Hassan

In this paper, we investigate a practical structure of reconfigurable intelligent surface (RIS)-based double spatial scattering modulation (DSSM) for millimeter-wave (mmWave) multiple-input multiple-output (MIMO) systems. A suboptimal…

信息论 · 计算机科学 2023-10-10 Xusheng Zhu , Wen Chen , Qingqing Wu , Jun Li , Nan Cheng , Fangjiong Chen , Changle Li

Photonic crystal fiber (PCF)-based plasmonic sensors have gained considerable attention because of their highly sensitive performance and broad range of sensing regimes. In this work, a relatively simple ultra-sensitive PCF-based surface…

The intrinsically rectifying-resistive switching (IR-RS) has been regarded as an effective way to address the crosstalk issue, due to the Schottky diodes formed at the metal/oxide interfaces in the ON states to suppress the sneak current at…

介观与纳米尺度物理 · 物理学 2017-02-21 Zhong Sun , Linlin Wei , Ce Feng , Peixian Miao , Meiqi Guo , Huaixin Yang , Jianqi Li , Yonggang Zhao

The RESEDA (Resonant Spin-Echo for Diverse Applications) instrument has been optimized for neutron scattering measurements of quasi-elastic and inelastic processes over a wide parameter range. One spectrometer arm of RESEDA is configured…

仪器与探测器 · 物理学 2022-11-22 J. C. Leiner , C. Franz , J. K. Jochum , C. Pfleiderer

After more than a decade of extensive research on the magnetic order triggered by lattice defects in a wide range of nominally non-magnetic materials, we report its application in a spintronic device. This device is based on a spin-filter…

介观与纳米尺度物理 · 物理学 2017-07-10 L. Botsch , I. Lorite , Y. Kumar , P. Esquinazi , T. Michalsky , J. Zajadacz , K. Zimmer

Magnetic resonance imaging (MRI) is the cornerstone technique for diagnostic medicine, biology, and neuroscience. This imaging method is highly innovative, noninvasive and its impact continues to grow. It can be used for measuring changes…

Reconfigurable intelligent surface (RIS) has been anticipated to be a novel cost-effective technology to improve the performance of future wireless systems. In this paper, we investigate a practical RIS-aided multiple-input-multiple-output…

信息论 · 计算机科学 2023-03-23 Jintao Wang , Shiqi Gong , Qingqing Wu , Shaodan Ma

The concept of fluid reconfigurable intelligent surface (FRIS) upgrades the conventional reconfigurable intelligent surface (RIS) paradigm by empowering its reflecting elements with positioning reconfigurability. This letter aims to…

信息论 · 计算机科学 2025-11-21 Xusheng Zhu , Kai-Kit Wong , Boyi Tang , Wen Chen , Chan-Byoung Chae

Local modification of magnetic properties of nanoelements is a key to design future-generation magnonic devices, in which information is carried and processed via spin waves. One of the biggest challenges here is to fabricate simple and…

介观与纳米尺度物理 · 物理学 2020-04-03 O. V. Dobrovolskiy , R. Sachser , S. A. Bunyaev , D. Navas , V. M. Bevz , M. Zelent , W. Smigaj , J. Rychly , M. Krawczyk , R. V. Vovk , M. Huth , G. N. Kakazei

Spin-dependent transport processes in thin near-surface doping regions created by low energy ion implantation of arsenic in silicon are detected by two methods, spin-dependent recombination (SDR) using microwave photoconductivity and…

Reconfigurable intelligent surfaces (RISs) are an emerging technology for enhancing the performance of wireless networks at a low and affordable cost, complexity, and power consumption. We introduce an algorithm for optimizing a…

信息论 · 计算机科学 2020-12-01 Xuewen Qian , Marco Di Renzo

We investigate spin dynamics in $\alpha$-Fe$_{2}$O$_{3}$/Ni$_{80}$Fe$_{20}$ (Py) heterostructures, uncovering a robust mechanism for in-situ modulation of ferromagnetic resonance (FMR) through precise control of temperature, applied…