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We theoretically investigate inelastic transport through anisotropic magnetic molecules weakly coupled to one ferromagnetic and one nonmagnetic lead. We find that the current is suppressed over wide voltage ranges due to spin blockade. In…

介观与纳米尺度物理 · 物理学 2009-11-11 Florian Elste , Carsten Timm

We analyze the electronic transport through a model spin-1 molecule as a function of temperature, magnetic field and bias voltage. We consider the effect of magnetic anisotropy, which can be generated experimentally by stretching the…

强关联电子 · 物理学 2011-06-24 P. S. Cornaglia , P. Roura Bas , A. A. Aligia , C. A. Balseiro

The subject of this study is spin transport through a molecular orbital connected to two leads, and coupled via exchange interaction with a precessing anisotropic molecular spin in a constant magnetic field. The inelastic spin-flip…

介观与纳米尺度物理 · 物理学 2025-10-02 Milena Filipović

For the study of molecular spin junctions, we take into account two types of couplings between the molecule and the metal leads: (i) electron transfer that gives rise to net current in the biased junction and (ii) energy transfer between…

介观与纳米尺度物理 · 物理学 2009-04-23 M. Jouravlev , Kwang S. Kim

We theoretically study the spin-polarized transport through a single-molecule magnet, which is weakly coupled to ferromagnetic leads, by means of the rate-equation approach. We consider both the ferromagnetic and antiferromagnetic…

介观与纳米尺度物理 · 物理学 2012-03-22 Haiqing Xie , Qiang Wang , Bo Chang , Hujun Jiao , J. -Q. Liang

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

Using density functional theory calculations, we demonstrate that the effect of anisotropic magnetoresistance (AMR) can be enhanced by orders of magnitude with respect to conventional bulk ferromagnets in junctions containing molecules…

介观与纳米尺度物理 · 物理学 2015-12-23 Fabian Otte , Stefan Heinze , Yuriy Mokrousov

We theoretically study the quench dynamics of induced anisotropy of a large-spin magnetic molecule coupled to spin-polarized ferromagnetic leads. The real-time evolution is calculated by means of the time-dependent density-matrix numerical…

介观与纳米尺度物理 · 物理学 2020-07-01 Kacper Wrześniewski , Ireneusz Weymann

The frequency-dependent transport through a nano-device containing a large-spin magnetic molecule is studied theoretically in the Kondo regime. Specifically, the effect of magnetic anisotropy on dynamical spin accumulation is of primary…

介观与纳米尺度物理 · 物理学 2018-01-17 Anna Plominska , Ireneusz Weymann , Maciej Misiorny

Controlling magnetic anisotropy is a key requirement for the fundamental understanding of molecular magnetism and is a prerequisite for numerous applications in magnetic storage, spintronics, and all-spin logic devices. In order to address…

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

Formation of a magnetic hysteresis loop with respect to a bias voltage is investigated theoretically in a spin-valve device based on a single magnetic molecule. We consider a device consisting of two ferromagnetic electrodes bridged by a…

介观与纳米尺度物理 · 物理学 2018-05-09 Anna Płomińska , Maciej Misiorny , Ireneusz Weymann

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 investigate effects of spin-orbit splitting on electronic transport in a spin valve consisting of a large quantum dot defined on a two-dimensional electron gas with two ferromagnetic contacts. In the presence of both structure inversion…

介观与纳米尺度物理 · 物理学 2007-05-23 H. Saarikoski , W. Wetzels , G. E. W. Bauer

We analyze spin-dependent transport through a spin-diode in the presence of spin-flip and under influence of temperature bias. The current polarization and the spin accumulation are investigated in detail by means of reduced density matrix.…

介观与纳米尺度物理 · 物理学 2012-04-10 M. Bagheri Tagani , H. Rahimpour Soleimani

Single-molecule magnets weakly coupled to two ferromagnetic leads act as memory devices in electronic circuits---their response depends on history, not just on the instantaneous applied voltage. We show that magnetic anisotropy introduces a…

介观与纳米尺度物理 · 物理学 2012-09-24 Carsten Timm , Massimiliano Di Ventra

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

We study theoretically spin transport through a single-molecule magnet (SMM) in the sequential and cotunneling regimes, where the SMM is weakly coupled to one ferromagnetic and one normalmetallic leads. By a master-equation approach, it is…

介观与纳米尺度物理 · 物理学 2017-09-19 Haiqing Xie , Fuming Xu , Hujun Jiao , Qiang Wang , J. -Q. Liang

Transport through molecular magnets is studied in the regime of strong coupling to the leads. We consider a resonant-tunneling model where the electron spin in a quantum dot or molecule is coupled to an additional local, anisotropic spin…

介观与纳米尺度物理 · 物理学 2013-05-29 Florian Elste , Carsten Timm

Spin reversal in magnetic nanomolecules and nanoclusters is considered. A method is suggested allowing, from one side, to keep for long time magnetic polarization in a metastable state and, from the other side, for starting the reversal…

介观与纳米尺度物理 · 物理学 2022-03-23 V. I. Yukalov , E. P. Yukalova
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