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Related papers: Molecular Spintronics: Spin-Dependent Electron Tra…

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Superconducting spintronics has emerged in the last decade as a promising new field that seeks to open a new dimension for nanoelectronics by utilizing the internal spin structure of the superconducting Cooper pair as a new degree of…

A detailed investigation of a superconducting spin-triplet valve is presented. This spin-valve consists of a superconducting film covering a metal with an intrinsic spiral magnetic order, which could result from competing isotropic…

Superconductivity · Physics 2022-09-30 N. G. Pugach , M. O. Safonchik , V. I. Belotelov , T. Ziman , T. Champel

The valence flat bands in transition metal dichalcogenide (TMD) heterobilayers are shown to exhibit strong intralayer spin-orbit coupling. This is reflected in a simple tight-binding model with spin-dependent complex hoppings based on the…

Mesoscale and Nanoscale Physics · Physics 2022-06-01 Louk Rademaker

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…

Materials Science · Physics 2009-09-08 Giovanni Cantele , Young-Su Lee , Domenico Ninno , Nicola Marzari

Molecular-scale components are expected to be central to nanoscale electronic devices. While molecular-scale switching has been reported in atomic quantum point contacts, single-molecule junctions provide the additional flexibility of…

We theoretically analyze the spectrum of a magnetic molecule when its charge and spin can couple to the molecular vibrations. More specifically, we show that the interplay between charge-vibron and spin-vibron coupling leads to a…

Mesoscale and Nanoscale Physics · Physics 2018-07-04 Ahmed Kenawy , Janine Splettstoesser , Maciej Misiorny

We study contact effects on electron transport across a molecular wire sandwiched between two semi-infinite (carbon) nanotube leads as a model for nanoelectrodes. Employing the Landauer scattering matrix approach we find that the…

Mesoscale and Nanoscale Physics · Physics 2009-10-31 G. Fagas , G. Cuniberti , K. Richter

New advances in single-atom manipulation are leading to the creation of atomic structures on H passivated Si surfaces with functionalities important for the development of atomic and molecular based technologies. We perform total-energy and…

Materials Science · Physics 2015-06-22 Mikaël Kepenekian , Roberto Robles , Riccardo Rurali , Nicolás Lorente

Signatures of Majorana zero modes (MZMs), which are the building blocks for fault-tolerant topological quantum computing, have been observed in semiconductor nanowires (NW) with strong spin-orbital-interaction (SOI), such as InSb and InAs…

Mesoscale and Nanoscale Physics · Physics 2020-05-15 Zedong Yang , Brett Heischmidt , Sasa Gazibegovic , Ghada Badawy , Diana Car , Paul A. Crowell , Erik P. A. M. Bakkers , Vlad S. Pribiag

We present a theory of single-electron tunneling transport through a ferromagnetic nanoparticle in which particle-hole excitations are coupled to spin collective modes. The model employed to describe the interaction between quasiparticles…

Mesoscale and Nanoscale Physics · Physics 2009-11-11 L. Michalak , C. M. Canali , V. G. Benza

We report transport measurements through a single-molecule magnet, the Mn12 derivative [Mn12O12(O2C-C6H4-SAc)16(H2O)4], in a single-molecule transistor geometry. Thiol groups connect the molecule to gold electrodes that are fabricated by…

Mesoscale and Nanoscale Physics · Physics 2009-11-11 H. B. Heersche , Z. de Groot , J. A. Folk , H. S. J. van der Zant , C. Romeike , M. R. Wegewijs , L. Zobbi , D. Barreca , E. Tondello , A. Cornia

We report an improved fabrication scheme for carbon based nanospintronic devices and demonstrate the necessity for a careful data analysis to investigate the fundamental physical mechanisms leading to magnetoresistance. The processing with…

Mesoscale and Nanoscale Physics · Physics 2014-05-06 J. Samm , J. Gramich , A. Baumgartner , M. Weiss , C. Schoenenberger

Ultrafast demagnetization induced by femtosecond laser pulses in thin metallic layers is caused by the outflow of spin-polarized hot electron currents describable by the superdiffusive transport model. These laser-generated spin currents…

Mesoscale and Nanoscale Physics · Physics 2023-05-24 Pavel Baláž , Maciej Zwierzycki , Francesco Cosco , Karel Carva , Pablo Maldonado , Peter M. Oppeneer

The article considers the simulation of the formation of a multilayer nanocomposite, the combination of elements of which gives rise to the effect of a spin valve. The relevance and importance of the effects in the field of spintronics and…

Superconductivity · Physics 2022-08-18 A. V. Vakhrushev , A. Yu. Fedotov , Yu. B. Savva , A. S. Sidorenko

A theory of the proximity effects of the exchange splitting in a ferromagnetic metal on a two dimensional electron gas (2DEG) in a semiconductor is presented. The resulting spin-dependent energy and lifetime in the 2DEG create a marked…

Mesoscale and Nanoscale Physics · Physics 2009-11-10 J. P. McGuire , C. Ciuti , L. J. Sham

A scanning tunneling microscope (STM) can probe the inelastic spin excitations of single magnetic atoms in a surface via spin-flip assisted tunneling. A particular and intriguing case is the Mn dimer case. We show here that the existing…

Mesoscale and Nanoscale Physics · Physics 2022-08-31 F. Delgado , J. Fernández-Rossier

We present a theoretical study on the spin-dependent transport through a spin valve consisting of graphene sandwiched between two magnetic leads with an arbitrary orientation of the lead magnetization. No gate voltage is applied. Using…

Mesoscale and Nanoscale Physics · Physics 2009-11-13 Kai-He Ding , Zhen-Gang Zhu , Jamal Berakdar

We present a qualitative model for a fundamental process in molecular electronics: the change in conductance upon bond breaking. In our model a diatomic molecule is attached to spin-polarized contacts. Employing a Hubbard Hamiltonian,…

Materials Science · Physics 2008-06-24 Ali Goker , Francois Goyer , Matthias Ernzerhof

Material systems that exhibit tunable spin-selective conductivity are key components of spintronic technologies. Here we demonstrate a novel type of spin-selective transport, based on the unusual Landau level (LL) sequence observed in…

Mesoscale and Nanoscale Physics · Physics 2023-07-04 En-Min Shih , Qianhui Shi , Daniel Rhodes , Bumho Kim , Kenji Watanabe , Takashi Taniguchi , Kun Yang , James Hone , Cory R. Dean

We present a microscopic study of single-electron tunneling in nanomechanical double-barrier tunneling junctions formed using a vibrating scanning nanoprobe and a metallic nanoparticle connected to a metallic substrate through a molecular…

Mesoscale and Nanoscale Physics · Physics 2009-11-10 Yongqiang Xue , Mark A. Ratner