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相关论文: A room-temperature polymeric spin-valve

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Low temperature properties of the spin-1/2 frustrated ladder with ferromagnetic rungs and legs, and two different antiferromagnetic next nearest neighbor interaction are investigated using the modified spin wave approximation in the region…

强关联电子 · 物理学 2012-04-04 Kazuo Hida , Takashi Iino

Topological semimetal materials have become a research hotspot due to their intrinsic strong spin-orbit coupling which leads to large charge-to-spin conversion efficiency and novel transport behaviors. In this work, we have observed a…

Huge values of high field magnetoresistance have been recently reported in large arrays of CoFe nanoparticles embedded in an organic insulating lattice in the Coulomb blockade regime. An unusual exponential decrease of magnetoresistance…

材料科学 · 物理学 2008-10-09 Reasmey P. Tan , Julian Carrey , Marc Respaud

To augment the magnetoresistance (MR) ratio of n-type non-degenerate Si-based lateral spin valves (Si-LSVs), we modify the doping profile in the Si layer and introduce a larger local strain into the Si channel by changing a capping…

应用物理 · 物理学 2020-09-01 H. Koike , S. Lee , R. Ohshima , E. Shigematsu , M. Goto , S. Miwa , Y. Suzuki , T. Sasaki , Y. Ando , M. Shiraishi

This paper considers certain materials, including topological insulators, where spin rotation symmetry is broken much more strongly than time reversal symmetry. When these materials are in the diffusive regime, i.e. when they have disorder…

介观与纳米尺度物理 · 物理学 2022-10-25 Vincent Sacksteder

We report magnetoresistance for current flow through iron/topological insulator (Fe/TI) and Fe/evaporated-oxide/TI contacts when a magnetic field is used to initially orient the magnetic alignment of the incorporated ferromagnetic Fe bar,…

介观与纳米尺度物理 · 物理学 2016-08-24 Sarmita Majumder , Samaresh Guchhait , Rik Dey , Leonard Franklin Register , Sanjay K. Banerjee

The two-dimensional (2D) semiconductor molybdenum disulfide (MoS2) has attracted widespread attention for its extraordinary electrical, optical, spin and valley related properties. Here, we report on spin polarized tunneling through…

We report the response of electrical resistivity $\rho$ to the application of magnetic fields (H) up to 140 kOe in the temperature interval 1.8-300 K for the compound, Gd7Rh3, ordering antiferromagnetically below 150 K. We find that there…

强关联电子 · 物理学 2009-11-10 Kausik Sengupta , S. Rayaprol , E. V. Sampathkumaran

Spin Hall magnetoresistance (SMR) is studied in metallic bilayers that consist of heavy metal (HM) layer and a ferromagnetic metal (FM) layer. We find nearly a ten-fold increase of SMR in W/CoFeB compared to previously studied…

介观与纳米尺度物理 · 物理学 2016-03-23 Junyeon Kim , Peng Sheng , Saburo Takahashi , Seiji Mitani , Masamitsu Hayashi

Fluctuations of the magnetization in spin valves are shown to cause resistance noise that strongly depends on the magnetic configuration. Due to the applied external field and the dynamic exchange interaction through the normal metal…

介观与纳米尺度物理 · 物理学 2015-06-25 Jorn Foros , Arne Brataas , Gerrit E. W. Bauer , Yaroslav Tserkovnyak

Tunneling surface current through a thin ferromagnetic barrier in a three-dimensional topological insulator is shown to possess an extraordinary response to the orientation of barrier magnetization. In contrast to conventional…

强关联电子 · 物理学 2015-05-27 B. D. Kong , Y. G. Semenov , C. Krowne , K. W. Kim

The large spin orbit coupling in topological insulators results in helical spin-textured Dirac surface states that are attractive for topological spintronics. These states generate an efficient spin-orbit torque on proximal magnetic moments…

介观与纳米尺度物理 · 物理学 2018-02-07 Yang Lv , James Kally , Delin Zhang , Joon Sue Lee , Mahdi Jamali , Nitin Samarth , Jian-Ping Wang

In this paper, magnetoelectric effects of Sr Z-type hexaferrite, Sr3Fe24Co2O41, at room temperature is measured. The change in remanence magnetization was measured by applying a DC voltage or electric field across a slab of hexaferrite.…

材料科学 · 物理学 2011-11-24 Khabat Ebnabbasi , Yajie Chen , Anton Geiler , Vincent Harris , Carmine Vittoria

A spin-tunnel-junction based on manganites, with La$_{1-x}$Sr$_x$MnO$_3$ (LSMO) as ferromagnetic metallic electrodes and the undoped parent compound LaMnO$_3$ (LMO) as insulating barrier, is here theoretically discussed using double…

强关联电子 · 物理学 2009-11-13 S. Yunoki , E. Dagotto , S. Costamagna , J. A. Riera

Since the discovery of the giant magnetoresistance (GMR) effect the use of the intrinsic angular momentum of the electrons has opened up new spin based device concepts. The two channel model of spin-up and spin-down electrons with…

介观与纳米尺度物理 · 物理学 2014-12-24 F. K. Dejene , J. Flipse , G. E. W. Bauer , B. J. van Wees

Realization of noncentrosymmetric magnetic Weyl metals is expected to exhibit anomalous transport properties stemming from the interplay of unusual bulk electronic topology and magnetism. Here, we present spin-valve-like magnetoresistance…

The combination of semiconducting properties and synthetically tunable chirality in chiral metal halide semiconductors (CMHS) offer a compelling platform for room temperature control over electronic spin properties, leveraging effects such…

We use a ferromagnetic voltage probe model to study the influence of inelastic scattering on giant magnetoresistance and current-induced torques in ferromagnetic and antiferromagnetic metal spin valves. The model is based on the Green's…

介观与纳米尺度物理 · 物理学 2009-11-11 R. A. Duine , P. M. Haney , A. S. Nunez , A. H. MacDonald

We report magnetoresistance curves of CoFe nano-oxide specular spin valves of MnIr/CoFe/nano-oxidized CoFe/CoFe/Cu/CoFe/nano-oxidized CoFe/Ta at different temperatures from 300 to 20 K. We extend the Stoner-Wolfarth model of a common spin…

材料科学 · 物理学 2009-11-11 J. Ventura , J. B. Sousa , M. A. Salgueiro da Silva , P. P. Freitas , A. Veloso

In this work, the investigation of magnetic proximity effect was extended to Ta which has been reported to have a negative spin Hall angle. Magnetoresistance and Hall measurements for in-plane and out-of-plane applied magnetic field sweeps…

介观与纳米尺度物理 · 物理学 2015-06-17 Yumeng Yang , Baolei Wu , Kui Yao , Santiranjan Shannigrahi , Baoyu Zong , Yihong Wu