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Two-dimensional altermagnets exhibit exceptional potential for low-power spintronics via nonrelativistic spin splitting and zero net magnetization. Here, we systematically investigate the influence of interlayer interactions on the…

Materials Science · Physics 2026-03-25 Siqi Xu , Qilong Cui , Shaowen Xu , Xianbo Chenwei , Jiahao Zhang , Ruixue Li , Yuan Li , Gaofeng Xu , Fanhao Jia

We propose a highly efficient silicene device for dual spin and valley filtering. The device consists of two different barrier regions: the first is a region under uniaxial strain, with an exchange field induced by adjacent top and bottom…

Mesoscale and Nanoscale Physics · Physics 2016-02-03 Can Yesilyurt , Seng Ghee Tan , Gengchiau Liang , Mansoor B. A. Jalil

We propose an efficient spin filter including an antidot fabricated on semiconductor heterostructures with strong spin-orbit interaction. The antidot creates a tunable potential on two-dimensional electron gas in the heterostructures, which…

Mesoscale and Nanoscale Physics · Physics 2009-09-17 Tomohiro Yokoyama , Mikio Eto

Using density functional theory, we have investigated the structural, electronic and magnetic properties of infinitely periodic organometallic vanadium-anthracene ($[V_2Ant]_\infinity)$ and $[V_4(BNAnt)_2]_\infinity$(where BNAnt is B-N…

Mesoscale and Nanoscale Physics · Physics 2017-03-15 Prakash Parida , Anasuya Kundu , Swapan K. Pati

Organic semiconductors find increasing importance in spin transport devices due to the modulation and control of their properties through chemical synthetic versatility. The organic materials are used as interlayers between two ferromagnet…

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…

Mesoscale and Nanoscale Physics · Physics 2010-03-15 Moumita Dey , Santanu K. Maiti , S. N. Karmakar

The effect of applying an external electric field on doping-induced spin-orbit splitting of the lowest conduction-band states in a bismuth-doped zinc oxide nanowire is studied by performing electronic structure calculations within the…

Materials Science · Physics 2018-01-08 Mehmet Aras , Çetin Kılıç

We demonstrate a new class of molecules for exceptional performance in molecular electronics and spintronics. Phenalenyl-based radicals are stable radicals whose electronic properties can be tuned readily by heteroatom substitution. We…

Mesoscale and Nanoscale Physics · Physics 2021-11-24 Manuel Smeu , Oliver L. A. Monti , Dominic McGrath

Electrical generation of polarized spins in nonmagnetic materials is of great interest for the underlying physics and device potential. One such mechanism is chirality-induced spin selectivity (CISS), with which structural chirality leads…

We analyze transport through both a double quantum dot and a triple quantum dot with inhomogeneous Zeeman splittings in the presence of crossed dc and ac magnetic fields. We find that strongly spin-polarized current can be achieved by…

Mesoscale and Nanoscale Physics · Physics 2010-11-30 Maria Busl , Gloria Platero

Obtaining highly spin-polarized currents in molecular junctions is crucial and desirable for nanoscale spintronics devices. Motivated by our recent symmetry-based theoretical argument for complete blocking of one spin conductance channel in…

Mesoscale and Nanoscale Physics · Physics 2019-06-12 Dongzhe Li , Yannick J. Dappe , Alexander Smogunov

We calculate the conductance through a system of three quantum dots under two different sets of conditions that lead to spin filtering effects under an applied magnetic field. In one of them, a spin is localized in one quantum dot, as…

Mesoscale and Nanoscale Physics · Physics 2011-06-29 Leandro Tosi , A. A. Aligia

We demonstrate that due to their spin-orbit interaction carbon nanotube cross-junctions have attractive spin projective properties for transport. First, we show that the junction can be used as a versatile spin filter as a function of a…

Mesoscale and Nanoscale Physics · Physics 2013-11-12 Francesco Mazza , Bernd Braunecker , Patrik Recher , Alfredo Levy Yeyati

Vanadium dioxide is a correlated electron system that features a metal-insulator phase transition (MIT) above room temperature and is of interest in high speed switching devices. Here, we integrate VO2 into two-terminal coplanar waveguides…

Materials Science · Physics 2013-06-04 Sieu D. Ha , You Zhou , Christopher J. Fisher , Shriram Ramanathan , Jacob P. Treadway

The spin-dependent conductance and spin-polarization of a MoS2 quantum dot are studied in presence (absent) of an external electric field perpendicular to the molybdenum plane. It is shown that in absence of the electric field, the…

Mesoscale and Nanoscale Physics · Physics 2015-01-06 Hamidreza Simchi , Mahdi Esmaeilzadeh , Hossein Mazidabadi , Mohammad Norouzi

Two-level quantum systems with strong spin-orbit coupling allow for all-electrical qubit control and long-distance qubit coupling via microwave and phonon cavities, making them of particular interest for scalable quantum information…

Mesoscale and Nanoscale Physics · Physics 2019-01-11 J. van der Heijden , T. Kobayashi , M. G. House , J. Salfi , S. Barraud , R. Lavieville , M. Y. Simmons , S. Rogge

Van der Waals magnetic materials are currently of great interest as materials for applications in future ultrathin nanoelectronics and nanospintronics. Due to weak coupling between individual monolayers, these materials can be easily…

Mesoscale and Nanoscale Physics · Physics 2023-11-21 Wojciech Rudziński , Józef Barnaś , Anna Dyrdał

Magnetic excitations have been investigated in the spin dimer material VODPO_4 \cdot 1/2 D_2O using inelastic neutron scattering. A dispersionless magnetic mode was observed at an energy of 7.81(4) meV. The wavevector dependence of the…

Condensed Matter · Physics 2016-08-31 D. A. Tennant , S. E. Nagler , A. W. Garrett , T. Barnes , C. C. Torardi

Spin-polarized current through an Al nanoparticle in tunnel contact with two ferromagnets is measured as a function of the direction of the applied magnetic field. The nanoparticle filters the spin of injected electrons along a direction…

Mesoscale and Nanoscale Physics · Physics 2008-09-15 F. T. Birk , C. E. Malec , D. Davidovic

We probe spin transport in Cu_{2}O by measuring spin valve effect in La_{0.7}Sr_{0.3}MnO_{3}/Cu_{2}O/Co and La_{0.7}Sr_{0.3}MnO_{3}/Cu_{2}O/La_{0.7}Sr_{0.3}MnO_{3} epitaxial heterostructures. In La_{0.7}Sr_{0.3}MnO_{3}/Cu_{2}O/Co systems we…

Mesoscale and Nanoscale Physics · Physics 2010-04-21 I. Pallecchi , L. Pellegrino , N. Banerjee , M. Cantoni , A. Gadaleta , A. S. Siri , D. Marré