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相关论文: Electron-vibron coupling effects on electron trans…

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We review different electron transport methods to probe the magnetic properties, such as the magnetic anisotropy, of an individual Fe4 SMM. The different approaches comprise first and higher order transport through the molecule. Gate…

介观与纳米尺度物理 · 物理学 2016-06-09 E. Burzurí , R. Gaudenzi , H. S. J. van der Zant

Using first-principles methods we study theoretically the properties of an individual $\{Fe_4\}$ single-molecule magnet (SMM) attached to metallic leads in a single-electron transistor geometry. We show that the conductive leads do not…

介观与纳米尺度物理 · 物理学 2014-07-01 J. F. Nossa , M. Fhokrul Islam , C. M. Canali , M. R. Pederson

To understand the effect of molecular environment on the electronic and magnetic properties of the single-molecule magnet (SMM) Mn$_{12}$, we explore two possible means for adding extra electrons to molecule. We explore both substitution of…

材料科学 · 物理学 2009-11-10 Kyungwha Park , Mark R. Pederson

By means of electronic transport, we study the transverse magnetic anisotropy of an individual Fe$_4$ single-molecule magnet (SMM) embedded in a three-terminal junction. In particular, we determine in situ the transverse anisotropy of the…

介观与纳米尺度物理 · 物理学 2016-08-10 M. Misiorny , E. Burzurí , R. Gaudenzi , K. Park , M. Leijnse , M. R. Wegewijs , J. Paaske , A. Cornia , H. S. J. van der Zant

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…

介观与纳米尺度物理 · 物理学 2018-07-04 Ahmed Kenawy , Janine Splettstoesser , Maciej Misiorny

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…

介观与纳米尺度物理 · 物理学 2009-11-11 L. Michalak , C. M. Canali , V. G. Benza

The ability to electrically-drive spin excitations in molecules with magnetic anisotropy is key for high-density storage and quantum-information technology. Electrons, however, also tunnel via the vibrational excitations unique to a…

We study the electronic transport through a spin-1 molecule in which mechanical stretching produces a magnetic anisotropy. In this type of device, a vibron mode along the stretching axis will couple naturally to the molecular spin. We…

强关联电子 · 物理学 2012-07-31 David A. Ruiz-Tijerina , Pablo S. Cornaglia , C. A. Balseiro , Sergio E. Ulloa

A theoretical model of a single molecule coupled to many vibronic modes is presented. At low energies, transport is dominated by electron-vibron processes where transfer of an electron through the dot is accompanied by the…

介观与纳米尺度物理 · 物理学 2011-08-19 Abdullah Yar , Andrea Donarini , Sonja Koller , Milena Grifoni

A theoretical model of a single molecule coupled to many vibronic modes is presented. At low energies, transport is dominated by electron-vibron processes where transfer of an electron through the dot is accompanied by the…

介观与纳米尺度物理 · 物理学 2015-03-17 Abdullah Yar , Andrea Donarini , Sonja Koller , Milena Grifoni

We present a theoretical approach to calculate the molecular magnetic anisotropy parameters, $D_M$ and $E_M$ for single molecule magnets in any eigenstate of the exchange Hamiltonian, treating the anisotropy Hamiltonian as a perturbation.…

强关联电子 · 物理学 2009-11-13 Rajamani Raghunathan , S. Ramasesha , Diptiman Sen

Here we present theoretical studies of the effect of vibronic coupling on nonlinear transport characteristics (current-voltage and conductance-voltage) in molecular electronic devices. Considered device is composed of molecular quantum dot…

介观与纳米尺度物理 · 物理学 2009-11-11 Kamil Walczak

We study single-electron transport in a three-ion molecule with strong uniaxial anisotropy and in the presence of a transverse magnetic field. Two magnetic ions are connected to each other through a third, nonmagnetic ion. The magnetic ions…

介观与纳米尺度物理 · 物理学 2014-05-12 Javier I. Romero , Eduardo R. Mucciolo

We have measured quantum transport through an individual Fe$_4$ single-molecule magnet embedded in a three-terminal device geometry. The characteristic zero-field splittings of adjacent charge states and their magnetic field evolution are…

We address the electronically induced anisotropy field acting on a spin moment comprised in a vibrating magnetic molecule located in the junction between ferromagnetic metals. Under weak coupling between the electrons and molecular…

介观与纳米尺度物理 · 物理学 2018-06-20 J. D. Vasquez Jaramillo , H. Hammar , J. Fransson

We study a single electron transistor (SET) based upon a II-VI semiconductor quantum dot doped with a single Mn ion. We present evidence that this system behaves like a quantum nanomagnet whose total spin and magnetic anisotropy depend…

介观与纳米尺度物理 · 物理学 2007-05-23 J. Fernandez-Rossier , R. Aguado

Anisotropic magnetic molecules can be employed to manipulate charge transport in molecular nanojunctions. Charge transport through a molecular orbital connected to two leads and exchange-coupled with a precessing anisotropic molecular spin…

介观与纳米尺度物理 · 物理学 2025-09-09 Milena Filipovic

We study linear electron transport through a single-molecule magnet (SMM) and the interplay of its anisotropic spin with quantized vibrational distortions of the molecule. We show that, despite the longitudinal anisotropy barrier and small…

介观与纳米尺度物理 · 物理学 2011-02-15 F. May , M. R. Wegewijs , W. Hofstetter

We have investigated the electron correlation effect on the electronic structures and transport properties of the iron-based superconductors using the density functional theory (DFT) and dynamical mean field theory (DMFT). By considering…

强关联电子 · 物理学 2011-08-19 Hyo Seok Ji , Geunsik Lee , Ji Hoon Shim

Inspired by recent advancements in the field of single-atom magnets, particularly those involving rare-earth (RE) elements, we present a theoretical exploration employing DFT+$U$ calculations to investigate the magnetic properties of…

介观与纳米尺度物理 · 物理学 2024-06-21 Johanna P. Carbone , Gustav Bihlmayer , Stefan Blügel
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