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The structural and electronic properties of small scandium oxide clusters ScnOm (n = 1 - 3, m = 1 - 2n) are systematically studied within the screened hybrid density functional theory. It is found that the ground states of these scandium…

原子与分子团簇 · 物理学 2015-03-19 Yu Yang , Haitao Liu , Ping Zhang

The use of the spin of the electron as the ultimate logic bit - in what has been dubbed spintronics - can lead to a novel way of thinking about information flow. At the same time single layer graphene has been the subject of intense…

介观与纳米尺度物理 · 物理学 2015-05-13 A. R. Rocha , T. B. Martins , A. Fazzio , A. J. R. da Silva

We employ the density functional Kohn-Sham method in the local spin-density approximation to study the electronic structure and magnetism of quasi one-dimensional periodic arrays of few-electron quantum dots. At small values of the lattice…

介观与纳米尺度物理 · 物理学 2015-06-25 K. Karkkainen , M. Koskinen , S. M. Reimann , M. Manninen

We propose that a magnetic quantum wire composed of magnetic and non-magnetic atomic sites can be used as a spin filter for a wide range of applied bias voltage. We adopt a simple tight-binding Hamiltonian to describe the model where the…

介观与纳米尺度物理 · 物理学 2010-03-15 Moumita Dey , Santanu K. Maiti , S. N. Karmakar

The electronic structure of the VAs compound in the zinc-blende structure is investigated using a combined density-functional and dynamical mean-field theory approach. Contrary to predictions of a ferromagnetic semiconducting ground state…

We characterize the transport properties of functionalized graphene nanoribbons using extensive first-principles calculations based on density functional theory (DFT) that encompass both monovalent and divalent ligands, hydrogenated defects…

材料科学 · 物理学 2009-09-08 Giovanni Cantele , Young-Su Lee , Domenico Ninno , Nicola Marzari

Stanene is a two-dimensional (2D) buckled honeycomb structure which has been studied recently owing to its promising electronic properties for potential electronic and spintronic applications in nanodevices. In this article, we present a…

介观与纳米尺度物理 · 物理学 2018-02-06 I. Evazzade , M. R. Roknabadi , T. Morshedloo , M. Modarresi , Y. Mogulkoc , H. Nematifar

Density functional theory has been applied to investigate the electronic structure and lattice stability of molybdenene monolayer in both its hexagonal and triclinic phases, within ultrasoft pseudopotential approach. In agreement with…

材料科学 · 物理学 2025-05-28 Ashkan Shekaari , Mahmoud Jafari

Structure and electronic properties of two unusual boron clusters obtained by fusion of borozene rings has been studied by means of first principles calculations, based on the generalized-gradient approximation of the density functional…

材料科学 · 物理学 2015-05-13 G. Forte , A. La Magna , I. Deretzis , R. Pucci

Half-metallic ferromagnets show 100% spin-polarization at the Fermi level and are ideal candidates for spintronic applications. Despite the extensive research in the field, very few materials have been discovered so far. Here we present…

We propose, for the first time, that an array of diamond plaquettes, each possessing vanishing net magnetization, can achieve complete spin polarization over a broad bias window. Furthermore, this system can be utilized to realize…

介观与纳米尺度物理 · 物理学 2025-05-28 Debjani Das Gupta , Santanu K. Maiti

This review compiles results of experimental and theoretical studies on thin films and quantum structures of semiconductors with randomly distributed Mn ions, which exhibit spintronic functionalities associated with collective ferromagnetic…

材料科学 · 物理学 2014-04-02 Tomasz Dietl , Hideo Ohno

Half-metals, featuring ideal 100\% spin polarization, are widely regarded as key materials for spintronic and quantum technologies; however, the half-metallic state is intrinsically fragile, as it relies on a delicate balance of exchange…

材料科学 · 物理学 2026-01-13 San-Dong Guo , Pan Zhou

Spin-orbit coupling and breaking of inversion symmetry are necessary ingredients to enable a pure spin current-based manipulation of the magnetization via the spin-orbit torque effect. Currently, magnetic insulator oxides with…

We perform first-principles calculations based on density functional theory to study quasi one-dimensional edge-passivated (with hydrogen) zigzag graphene nanoribbons (ZGNRs) of various widths with chemical dopants, boron and nitrogen,…

材料科学 · 物理学 2009-03-10 Sudipta Dutta , Arun K. Manna , Swapan K. Pati

Half-metallic ferromagnets can produce fully spin-polarized conduction electrons and can be applied to fabricate spintronic devices. Thus, in this study, the electronic structure, magnetic properties, and optical properties of GaSb, which…

材料科学 · 物理学 2020-01-07 Chuang Wang , Wenhui Wan , Yanfeng Ge , Yong-Hong Zhao , Kaicheng Zhang , Yong Liu

Organic spintronics has drawn the interest of the science community due to various applications in spin-valve devices. But to date, an efficient room-temperature Organic Spin Valve device has not been experimentally realized due to the…

材料科学 · 物理学 2025-03-07 Sonia Kaushik , Manisha Priyadarsini , Avinash G. Khanderao , Dileep Kumar

In this paper we review the recent field of organic spintronics, where organic materials are applied as a medium to transport and control spin-polarized signals. The contacts for injecting and detecting spins are formed by metals, oxides,…

介观与纳米尺度物理 · 物理学 2007-06-13 W. J. M. Naber , S. Faez , W. G. van der Wiel

We propose a spin valve device based on the interplay of a modulated spin-orbit interaction and a uniform external magnetic field acting on a quantum wire. Half-metal phases, where electrons with only a selected spin polarization exhibit…

强关联电子 · 物理学 2017-12-04 D. C. Cabra , G. L. Rossini , A. Ferraz , G. I. Japaridze , H. Johannesson

Magnetism in carbon nanostructures is of high scientific interest, which could lead to novel magnetic materials. The magnetic properties of symmetrical and asymmetrical sized small fullerene dimers have been investigated using spin…

材料科学 · 物理学 2020-06-04 Sandeep Kaur , Amrish Sharma , Hitesh Sharma , Isha Mudahar