English
Related papers

Related papers: Spin dependent charge transfer in MoSe2/hBN/Ni hyb…

200 papers

Half-metallic Heusler alloy compounds with Curie temperatures above room temperature are suitable candidate electrode materials for injecting large spin-polarised charge carriers into the semiconducting barriers at the ferromagnet…

Materials Science · Physics 2025-04-23 Aloka Ranjan Sahoo , Sharat Chandra

The temperature dependence of 2D magnetoresistance in an applied in-plane magnetic field is theoretically considered for electrons in Si MOSFETs within the screening theory for long-range charged impurity scattering limited carrier…

Disordered Systems and Neural Networks · Physics 2007-10-09 S. Das Sarma , E. H. Hwang

We consider a new type of magnetic tunnel junction, which consists of two ferromagnetic tunnel barriers acting as spin filters (SFs), separated by a nonmagnetic metal (NM) layer. Using the transfer matrix method and the free-electron…

Mesoscale and Nanoscale Physics · Physics 2009-11-10 Alireza Saffarzadeh

Polyalanine molecules (PA) with an {\alpha}-helix conformation gathered recently a lot of interest as the propagation of electrons through the chiral backbone structure comes along with spin polarization of the transmitted electrons. By…

Mesoscale and Nanoscale Physics · Physics 2022-02-16 Nguyen T. N. Ha , L. Rasabathina , O. Hellwig , A. Sharma , G. Salvan , S. Yochelis , Y. Paltiel , L. T. Baczewski , C. Tegenkamp

The spinel NiCr$_2$O$_4$ is characterized using dielectric and high magnetic field measurements. The trends in the magnetodielectric response fall into three clear temperature regimes corresponding to known magnetic and structural…

Materials Science · Physics 2014-01-15 Taylor D. Sparks , Moureen C. Kemei , Phillip T. Barton , R. Seshadri , Eun-Deok Mun , Vivien Zapf

In weakly spin-orbit coupled materials, the spin-selective nature of recombination can give rise to large magnetic-field effects, for example on electro-luminescence from molecular semiconductors. While silicon has weak spin-orbit coupling,…

Mesoscale and Nanoscale Physics · Physics 2018-02-21 F. Chiodi , S. L. Bayliss , L. Barast , D. Débarre , H. Bouchiat , R. H. Friend , A. D. Chepelianskii

We consider graphene deposited on monolayers of such transition-metal dichalcogenides like MoSe$_2$, WSe$_2$, MoS$_2$, and WS$_2$. Our key objective is to study the impact of relative twist angle between the monolayers on the…

Mesoscale and Nanoscale Physics · Physics 2025-07-02 I. Wojciechowska , A. Dyrdal

We experimentally investigate spin-polarized transport between a ferromagnetic Ni electrode and a surface of Weyl semimetal, realized in a thick WTe$_2$ single crystal. For highly-transparent Ni-WTe$_2$ planar junctions, we observe…

Mesoscale and Nanoscale Physics · Physics 2019-04-03 A. Kononov , O. O. Shvetsov , A. V. Timonina , N. N. Kolesnikov , E. V. Deviatov

Optical and magneto-optical properties of ZnMnO films grown at low temperature by Atomic Layer Deposition are discussed. A strong polarization of excitonic photoluminescence is reported, surprisingly observed without splitting or spectral…

The magnetization and electric polarization of a polar antiferromagnet Fe$_2$Mo$_3$O$_8$ are studied up to 66 T for spin-saturation magnetic fields applied along the polar axis. The magnetization process at 1.4 K exhibited multistep…

By means of spin-polarized low-energy electron microscopy (SPLEEM) we show that the magnetic easy-axis of one to three atomic-layer thick cobalt films on ruthenium crystals changes its orientation twice during deposition: one-monolayer and…

We demonstrate spin injection and detection in single wall carbon nanotubes using a 4-terminal, non-local geometry. This measurement geometry completely separates the charge and spin circuits. Hence all spurious magnetoresistance effects…

Mesoscale and Nanoscale Physics · Physics 2011-05-05 N. Tombros , S. J. van der Molen , B. J. van Wees

We present optical spectroscopy (photoluminescence and reflectance) studies of thin layers of the transition metal dichalcogenide WSe2, with thickness ranging from mono- to tetra-layer and in the bulk limit. The investigated spectra show…

Mesoscale and Nanoscale Physics · Physics 2015-03-06 Ashish Arora , Maciej Koperski , Karol Nogajewski , Jacques Marcus , Clement Faugeras , Marek Potemski

We have shown that polarized neutron reflectometry can determine in a model-free way not only the mean magnetization of a ferromagnetic thin film at any point of a hysteresis cycle, but also the mean square dispersion of the magnetization…

Materials Science · Physics 2009-11-07 W. -T. Lee , S. G. E. te Velthuis , G. P. Felcher , F. Klose , T. Gredig , E. D. Dahlberg

Half-metallic Heusler alloys are attracting considerable attention because of their unique half-metallic band structures which exhibit high spin polarization and yield huge magnetoresistance ratios. Besides serving as ferromagnetic…

For the past few years, 2D ferroelectric materials have attracted strong interest for their potential in future nanoelectronics devices. The recent discovery of 2D ferroelectricity in twisted layers of insulating hexagonal boron nitride,…

The temperature and voltage dependence of spin transport is theoretically investigated in a new type of magnetic tunnel junction, which consists of two ferromagnetic outer electrodes separated by a ferromagnetic barrier and a nonmagnetic…

Mesoscale and Nanoscale Physics · Physics 2009-11-11 Ali A. Shokri , Alireza Saffarzadeh

The magneto-transport properties of nanocomposite C:Co (15 and 40 at.% Co) thin films are investigated. The films were grown by ion beam co-sputtering on thermally oxidized silicon substrates in the temperature range from 200 to 500 degC.…

In multiferroic TbMn$_2$O$_5$, the behavior of the terbium ions forms a crucial part of the magneto-electric coupling. The result is a magnetically induced reversal of the electric polarization at 2 T. In this article we present the first…

Strongly Correlated Electrons · Physics 2011-06-27 R. D. Johnson , C. Mazzoli , S. R. Bland , C-H. Du , P. D. Hatton

We used a local susceptibility approach in extensive polarized neutron diffraction studies of the spin liquid \tbti. For a magnetic field applied along the [110] and [111] directions, we found that, at high temperature, all Tb moments are…

Strongly Correlated Electrons · Physics 2015-05-13 Arsen Gukasov , Huibo Cao , Isabelle Mirebeau , Pierre Bonville