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相关论文: Extraordinary magnetometry -- a review on extraord…

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Semiconductor-metal hybrid structures can exhibit a very large geometrical magnetoresistance effect, the so-called extraordinary magnetoresistance (EMR) effect. In this paper, we analyze this effect by means of a model based on the finite…

介观与纳米尺度物理 · 物理学 2009-11-10 M. Holz , O. Kronenwerth , D. Grundler

We show that extraordinary magnetoresistance (EMR) arises in systems consisting of two components; a semiconducting ring with a metallic inclusion embedded. The im- portant aspect of this discovery is that the system must have a…

材料科学 · 物理学 2010-08-02 T. H. Hewett , F. V. Kusmartsev

We report a proof-of-concept study of extraordinary magnetoresistance (EMR) in devices of monolayer graphene encapsulated in hexagonal boron nitride, having metallic edge contacts and a central metal shunt. Extremely large EMR values,…

介观与纳米尺度物理 · 物理学 2020-02-05 Bowen Zhou , Kenji Watanabe , Takashi Taniguchi , Erik A. Henriksen

We studied daisy-chained extraordinary magnetoresistance (EMR) devices based on high quality monolayer graphene encapsulated in hexagonal boron nitride (h-BN) at room temperature. The largest magnetoresistance (MR) achieved in our devices…

介观与纳米尺度物理 · 物理学 2024-11-21 Bowen Zhou , Kenji Watanabe , Takashi Taniguchi

Magnetoresistance (MR) is a characteristic that the resistance of a substance changes with the external magnetic field, reflecting various physical origins and microstructures of the substance. A large MR, namely a huge response to a low…

材料科学 · 物理学 2022-03-24 Rui Niu , W. K. Zhu

Magnetometers based on the extraordinary magnetoresistance (EMR) effect are promising for applications which demand high sensitivity combined with room temperature operation but their application for magnetic field sensing requires further…

The design, fabrication, and predicted performance of a new type of magnetic scanning probe microscope based on the newly discovered phenomenon of extraordinary magnetoresistance (EMR) is described. It is shown that the new probe should…

材料科学 · 物理学 2007-05-23 S. A. Solin

Giant magnetoresistance (GMR) material has great potential as next generation magnetic field sensing devices, have magnetic properties and high electrical potential to be developed into various applications such as: magnetic field sensor…

介观与纳米尺度物理 · 物理学 2012-02-02 Mitra Djamal , Ramli , Sparisoma Viridi , Khairurrijal

The acute sensitivity of the electrical resistance of certain systems to magnetic fields known as extreme magnetoresistance (XMR) has recently been explored in a new materials context with topological semimetals. Exemplified by WTe$_{2}$…

材料科学 · 物理学 2018-02-28 Linda Ye , Takehito Suzuki , Christina R. Wicker , Joseph G. Checkelsky

The magnetoresistance (MR) effect is widely employed in technologies that pervade our world from magnetic reading heads to sensors. Diverse contributions to MR, such as anisotropic, giant, tunnel, colossal, and spin-Hall, are revealed in…

In the present work, a relation has been established between degree of polarization and effective mass ratio (EMR) and magnetoresistance (MR) of one-dimensional non-degenerate system (which can represent a nano-wire or a linear chain of…

强关联电子 · 物理学 2008-06-20 Piyush Dua

Spin Hall magnetoresistance (SMR), the variation in resistance in a heavy metal (HM) with the magnetization orientation of an adjacent ferromagnet (FM), has been extensively studied as a powerful tool for probing surface magnetic moments in…

介观与纳米尺度物理 · 物理学 2025-01-03 Ping Tang

We report our observation of a correlation between the extrinsic electroresistance (EER) and magnetoresistance (EMR) via grain size in fine-grained La0.7Ca0.3MnO3. The nature of dependence of EER and EMR on grain size (~0.2-1.0 micron)…

强关联电子 · 物理学 2010-08-30 P. Sujatha Devi , A. Kumar , Dipten Bhattacharya , Shilpi Karmakar , B. K. Chaudhuri

The periodic response of magnetoresistance to an externally tunable parameter, such as magnetic field or chemical composition, in the bulk or an artificially designed material has been exploited for technological applications as well as to…

材料科学 · 物理学 2012-09-04 S. Dickert , D. K. Singh , R. Thantirige , M. T. Tuominen

An extreme magnetoresistance (XMR) has recently been observed in several non-magnetic semimetals. Increasing experimental and theoretical evidence indicates that the XMR can be driven by either topological protection or electron-hole…

Magnetoresistance (MR) provides a crucial tool for experimentally studying spin torques. While MR is well established in the device geometry of the spin Hall effect (SHE), as exemplified by the magnet/heavy-metal heterostructures, its role…

介观与纳米尺度物理 · 物理学 2026-01-13 Hantao Zhang , Ran Cheng

While magnetoresistance (MR) has generally been found to be symmetric in applied field in non-magnetic or magnetic metals, we have observed antisymmetric MR in Co/Pt multilayers. Simultaneous domain imaging and transport measurements show…

其他凝聚态物理 · 物理学 2009-11-10 X. M. Cheng , S. Urazhdin , O. Tchernyshyov , C. L. Chien , V. I. Nikitenko , A. J. Shapiro , R. D. Shull

Extraordinary Hall effect (EHE) is a spin-dependent phenomenon that generates voltage proportional to magnetization across a current carrying magnetic film. Magnitude of the effect can be artificially increased by stimulating properly…

强关联电子 · 物理学 2008-03-04 A. Gerber , O. Riss

Extremely large magnetoresistance (XMR) was recently discovered in many non-magnetic materials, while its underlying mechanism remains poorly understood due to the complex electronic structure of these materials. Here, we report an…

We describe a new type of magnetic field sensor which is termed an Electro-Mechanical Resonant Sensor (EMRS). The key part of this sensor is a small conductive elastic element with low damping rate and therefore a high Q fundamental mode of…

仪器与探测器 · 物理学 2014-11-18 Alexander B. Temnykh , Richard V. E. Lovelace
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