Journal ArticleDOI
Organic Radicals As Spin Filters
TLDR
This work discusses how organic radicals may act as spin filters in the coherent tunneling regime and how they may be tuned to filter either majority- or minority-spin electrons by adding electron-donating or -withdrawing substituents.Abstract:
Molecular spintronics has received extensive interest in recent years. Due to their favorable properties such as long spin coherence lengths and an amenability to fine-tuning via chemical substituents, organic materials play a prominent role in this field. Here we discuss how organic radicals may act as spin filters in the coherent tunneling regime and how they may be tuned to filter either majority- or minority-spin electrons by adding electron-donating or -withdrawing substituents. For a set of benzene-based model systems, we identify dips in the spin-resolved transmission, which may be caused by destructive interference, as a desirable feature when aiming for efficient spin filtering. Furthermore, the qualitative predictions made for our model systems are shown to be transferable to larger stable radicals.read more
Citations
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Journal ArticleDOI
Interface-engineered templates for molecular spin memory devices
Karthik V. Raman,Karthik V. Raman,A. M. Kamerbeek,A. M. Kamerbeek,Arup Mukherjee,Nicolae Atodiresei,Tamal K. Sen,Predrag Lazić,Vasile Caciuc,Reent Michel,Dietmar Stalke,Swadhin K. Mandal,Stefan Blügel,Markus Münzenberg,Jagadeesh S. Moodera +14 more
TL;DR: The findings suggest the use of chemically amenable phenalenyl-based molecules as a viable and scalable platform for building molecular-scale quantum spin memory and processors for technological development.
Journal ArticleDOI
Spin in density‐functional theory
Christoph R. Jacob,Markus Reiher +1 more
TL;DR: In this article, the role of the spin density and the possibilities for targeting specific spin states are discussed, and different options exist for setting up Kohn-Sham DFT schemes for open-shell systems, which imply different definitions of the exchange correlation energy functional and lead to different exact conditions on this functional.
Journal ArticleDOI
Spin in Density-Functional Theory
Christoph R. Jacob,Markus Reiher +1 more
TL;DR: In this article, the role of the spin density and the possibilities for targeting specific spin states are discussed, and different options exist for setting up Kohn-Sham DFT schemes for open-shell systems, which imply different definitions of the exchange correlation energy functional and lead to different exact conditions on this functional.
Journal ArticleDOI
The first decade of organic spintronics research
TL;DR: A set of significant milestones achieved in organic spintronic devices such as organic spin valves, bipolar spin-valves, and hybrid organic/inorganic light emitting diodes in comparison with representative inorganic spintronics devices are reviewed.
Journal ArticleDOI
Chromium Porphyrin Arrays As Spintronic Devices
TL;DR: It is predicted that the one-dimensional infinite chromium porphyrin array, which the authors call Cr-PA(∞), shows half-metallic behavior when the spins on the chromium atoms are in a parallel alignment, and a new organometallic framework for designing a spin filter is proposed.
References
More filters
Journal ArticleDOI
Self-Consistent Equations Including Exchange and Correlation Effects
Walter Kohn,L. J. Sham +1 more
TL;DR: In this paper, the Hartree and Hartree-Fock equations are applied to a uniform electron gas, where the exchange and correlation portions of the chemical potential of the gas are used as additional effective potentials.
Journal ArticleDOI
Inhomogeneous Electron Gas
P. C. Hohenberg,Walter Kohn +1 more
TL;DR: In this article, the ground state of an interacting electron gas in an external potential was investigated and it was proved that there exists a universal functional of the density, called F[n(mathrm{r})], independent of the potential of the electron gas.
Journal ArticleDOI
Spintronics: Fundamentals and applications
TL;DR: Spintronics, or spin electronics, involves the study of active control and manipulation of spin degrees of freedom in solid-state systems as discussed by the authors, where the primary focus is on the basic physical principles underlying the generation of carrier spin polarization, spin dynamics, and spin-polarized transport.
Book
Many-Particle Physics
TL;DR: In this article, the authors present a model for the second quantization of a particle and show that it can be used to construct a pair distribution function with respect to a pair of spinless fermions.
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