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相关论文: Planar Atom Trap and Magnetic Resonance 'Lens' Des…

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Searching for materials with single atom-thin as well as planar structure, like graphene and borophene, is one of the most attractive themes in two dimensional materials. Herein, using density functional theory calculations, we have…

材料科学 · 物理学 2024-09-17 Jun-Hui Yuan , Biao Zhang , Ya-Qian Song , Jia-Fu Wang , Kan-Hao Xue , Xiang-Shui Miao

A coding scheme is introduced, allowing to store a set of linked bit strings in planar magnetic nanoelements with holes. Analytical expressions for the corresponding magnetization distributions are developed up to a homotopy and the…

介观与纳米尺度物理 · 物理学 2023-08-02 Konstantin L. Metlov

First-generation magnetic random access memories based on anisotropic magnetoresistance required magnetic fields for both writing and reading. Modern all-electrical read/write memories use instead non-relativistic spin-transport connecting…

材料科学 · 物理学 2015-06-02 K. Olejník , V. Novák , J. Wunderlich , T. Jungwirth

Fabrication of perpendicularly magnetized ferromagnetic films on various buffer layers, especially on numerous newly discovered spin-orbit torque (SOT) materials to construct energy-efficient spin-orbitronic devices, is a long-standing…

介观与纳米尺度物理 · 物理学 2022-10-05 Kaihua Lou , Tunan Xie , Qianwen Zhao , Baiqing Jiang , ChaoChao Xia , Hanying Zhang , Zhihong Yao , Chong Bi

Shape anisotropy provides a simple mechanism to adjust the local bias field in patterned structures. It is well known that for ellipsoidal particles $<1$ $\mu$m in size, a quasi-single domain state can be realized with uniform anisotropy…

材料科学 · 物理学 2015-06-11 Yi Li , Yiran Lu , William E. Bailey

We describe the fabrication and construction of a setup for creating lattices of magnetic microtraps for ultracold atoms on an atom chip. The lattice is defined by lithographic patterning of a permanent magnetic film. Patterned…

In this article, we review the recent progress in growth, structural characterization, magnetic properties and related spintronic devices of tetragonal MnxGa and MnxAl thin films with perpendicular magnetic anisotropy. In the first part of…

材料科学 · 物理学 2013-12-04 Lijun Zhu , Shuaihua Nie , Jianhua Zhao

Nanoscale magnetic tunnel junction plays a pivotal role in magnetoresistive random access memories. Successful implementation depends on a simultaneous achievement of low switching current for the magnetization switching by spin-transfer…

应用物理 · 物理学 2018-05-09 K. Watanabe , B. Jinnai , S. Fukami , H. Sato , H. Ohno

We present a universal nanomechanical sensing platform for the investigation of magnetostriction in thin films. It is based on a doubly-clamped silicon nitride nanobeam resonator covered with a thin magnetostrictive film. Changing the…

We have developed a fast method to design perpendicular permanent magnets for simplifying stellarator coils based on existing codes. Coil complexity is one of the main challenges for stellarators. To date, only electromagnetic coils have…

等离子体物理 · 物理学 2020-05-13 Caoxiang Zhu , Michael Zarnstorff , David Gates , Arthur Brooks

We have realized a two dimensional permanent magnetic lattice of Ioffe-Pritchard microtraps for ultracold atoms. The lattice is formed by a single 300 nm magnetized layer of FePt, patterned using optical lithography. Our magnetic lattice…

A shapeable planar Hall sensor has been fabricated by lift-off a bilayer structure of NiFe(10 nm)/IrMn (8 nm) grown on a Kapton/PDMS substrate without using a buffer layer. The sensor exhibits a magnetic field sensitivity of 0.74…

应用物理 · 物理学 2019-03-26 B. Özer , H. Pişkin , N. Akdoğan

Down-scaling device dimensions to the nanometer range raises significant challenges to traditional device design, due to potential current leakage across nanoscale dimensions and the need to maintain reproducibility while dealing with…

介观与纳米尺度物理 · 物理学 2019-01-03 Zhongcan Xiao , Chuanxu Ma , Jingsong Huang , Liangbo Liang , Wenchang Lu , Kunlun Hong , Bobby G. Sumpter , An-Ping Li , J. Bernholc

Tunneling between the two lowest energy levels of single molecule magnets with Ising type anisotropy, accompanied by the emission or absorption of phonons, is considered. Quantitatively accurate calculations of the rates for such tunneling…

介观与纳米尺度物理 · 物理学 2015-10-05 Yun Liu , Anupam Garg

We prepared Ga0.95Mn0.05As films on top of periodic arrays of InAs quantum dots. X-ray diffraction reveals periodically strained films, commensurate to substrate's patterning. The dots produce a tensile strain in GaMnAs while between the…

材料科学 · 物理学 2010-03-26 X. Marti , T. Cechal , L. Horak , V. Novak , K. Hruska , Z. Vyborny , T. Jungwirth , V. Holy

We have fabricated Fe(N) thin films with varied N2 partial pressure and studied the microstructure, morphology, magnetic properties and resistivity by using X-ray diffraction, atomic force microscopy, transmission electron microscopy,…

材料科学 · 物理学 2009-11-10 H. B. Nie , S. Y. Xu , C. K. Ong , Q. Zhan , D. X. Li , J. P. Wang

Co2MnSi (CMS) films of different thicknesses (20, 50 and 100 nm) were grown by radio frequency (RF) sputtering on a-plane sapphire substrates. Our X-rays diffraction study shows that, in all the samples, the cubic <110> CSM axis is normal…

It is well known that a closed loop of magnetic dipoles can give rise to the rather elusive toroidal moment. However, artificial structures required to generate the necessary magnetic moments are typically optically large, complex to make…

光学 · 物理学 2017-01-11 Hong Xiang , Lixin Ge , Liang Liu , Tianshu Jiang , Z. Q. Zhang , C. T. Chan , Dezhuan Han

We study existence and properties of one-dimensional edge domain walls in ultrathin ferromagnetic films with uniaxial in-plane magnetic anisotropy. In these materials, the magnetization vector is constrained to lie entirely in the film…

偏微分方程分析 · 数学 2018-02-07 Ross G. Lund , Cyrill B. Muratov , Valeriy V. Slastikov

Current induced magnetization dynamics in asymmetric Cu/Co/Cu single magnetic layer nanopillars has been studied experimentally at room temperature and in low magnetic fields applied perpendicular to the thin film plane. In sub-100 nm…

介观与纳米尺度物理 · 物理学 2009-11-11 Barbaros Oezyilmaz , Andrew D. Kent