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We present a theoretical study of the electronic transport through single-molecule junctions incorporating a Pt6 metal cluster bound within an organic framework. We show that the insertion of this molecule between a pair of electrodes leads…

Mesoscale and Nanoscale Physics · Physics 2013-02-27 Linda A. Zotti , Edmund Leary , Maria Soriano , Juan Carlos Cuevas , Juan Jose Palacios

We discuss the electronic transport through molecules in the Kondo regime. We concentrate here on the influence of molecular vibrations. Two types of vibrations are investigated: (i) the breathing internal molecular modes, where the…

Mesoscale and Nanoscale Physics · Physics 2009-12-21 J. Mravlje , A. Ramsak

Spin-orbit coupling (SOC) is a relativistic effect, where an electron moving in an electric field experiences an effective magnetic field in its rest frame. In crystals without inversion symmetry, it lifts the spin degeneracy and leads to…

The latest concepts for quantum computing and data storage envision to address and manipulate single spins. A limitation for single atoms or molecules in contact to a metal surface are the short lifetime of excited spin states, typically…

Mesoscale and Nanoscale Physics · Physics 2014-09-25 B. W. Heinrich , L. Braun , J. I. Pascual , K. J. Franke

Polynuclear magnetic molecules often present dense transmission spectra with many overlapping conduction spin channels. Single-metal complexes display a sparser density of states, which in the presence of a fixed external magnetic field…

Mesoscale and Nanoscale Physics · Physics 2017-12-19 Salvador Cardona-Serra , Alejandro Gaita-Ariño , Efrén Navarro-Moratalla , Stefano Sanvito

Transistors, regardless of their size, rely on electrical gates to control the conductance between source and drain contacts. In atomic-scale transistors, this conductance is exquisitely sensitive to single electrons hopping via individual…

Since the chiral-induced spin selectivity (CISS) was first observed experimentally, its microscopic mechanism has been continuously explored by the scientific community. Among these investigations, the non-equilibrium effects and the…

Mesoscale and Nanoscale Physics · Physics 2023-09-12 Song Chen , Hua-Hua Fu

Single-molecule junctions - nanoscale systems where a molecule is connected to metallic electrodes - offer a unique platform for studying charge, spin and energy transport in non-equilibrium many-body quantum systems, with few parallels in…

Mesoscale and Nanoscale Physics · Physics 2024-11-05 María Camarasa-Gómez , Daniel Hernangómez-Pérez , Jan Wilhelm , Alexej Bagrets , Ferdinand Evers

\lco{} is known for its two-step spin crossover as a function of temperature. Despite efforts spanning over half a century, the origin of this phenomenon is still debated, particularly regarding how the microscopic spin states are involved…

Strongly Correlated Electrons · Physics 2024-11-18 Akihiko Ikeda , Yasuhiro H. Matsuda , Keisuke Sato , Joji Nasu

We study temperature induced metal-insulator transition in doped ferromagnetic semiconductors, described by s-d exchange model. The transition is a result of the mobility edge movement, the disorder being due to magnetic ions spin density…

Condensed Matter · Physics 2007-05-23 Eugene Kogan , Mark Auslender

Graphene electrodes are promising candidates to improve reproducibility and stability in molecular electronics through new electrode-molecule anchoring strategies. Here we report sequential electron transport in few-layer graphene…

Two-electron charged self-assembled quantum dot molecules exhibit a decoherence-avoiding singlet-triplet qubit subspace and an efficient spin-photon interface. Here, we demonstrate that the cycling transitions originating from auxiliary…

Mesoscale and Nanoscale Physics · Physics 2015-09-15 Y. L. Delley , M. Kroner , S. Faelt , W. Wegscheider , A. İmamoğlu

In contrast to silicon-based transistors, single molecule junctions can be gated by simple mechanical means. Specifically, charge can be transferred between the junction's electrodes and its molecular bridge when the interelectrode distance…

Mesoscale and Nanoscale Physics · Physics 2023-05-24 Biswajit Pabi , Jakub Šebesta , Richard Korytár , Oren Tal , Atindra Nath Pal

We consider a model for a single molecule with a large frozen spin sandwiched in between two BCS superconductors at equilibrium, and show that this system has a $\pi$ junction behavior at low temperature. The $\pi$ shift can be reversed by…

Superconductivity · Physics 2007-07-09 Colin Benjamin , Thibaut Jonckheere , Alex Zazunov , Thierry Martin

In a low-temperature study with a scanning tunneling microscope (STM), the irreducible lateral motion of a CO molecule adsorbed on a Si(001) surface showed a hyperlinear dependence on the tunneling current. This dependence implies that the…

The recent experimental realization of spin-orbit (SO) coupling for spin-1 ultracold atoms opens an interesting avenue for exploring SO-coupling-related physics in large-spin systems, which is generally unattainable in electronic materials.…

Quantum Gases · Physics 2016-02-11 Kuei Sun , Chunlei Qu , Yong Xu , Yongping Zhang , Chuanwei Zhang

Low-temperature three-terminal transport measurements through a thiol end-capped Pi -conjugated molecule have been carried out. Electronic excitations, including zero and finite-bias Kondo-effects have been observed and studied as a…

We study an effective one-dimensional quantum model that includes friction and spin-orbit coupling (SOC), and show that the model exhibits spin polarization when both terms are finite. Most important, strong spin polarization can be…

Mesoscale and Nanoscale Physics · Physics 2021-07-29 Artem G. Volosniev , Hen Alpern , Yossi Paltiel , Oded Millo , Mikhail Lemeshko , Areg Ghazaryan

As nanoelectronics approaches the nanometer scale, a massive effort is underway to identify the next scalable logic technology beyond Complementary Metal Oxide Semiconductor (CMOS) computing. Such computing technology needs to improve…

Mesoscale and Nanoscale Physics · Physics 2017-03-07 Sasikanth Manipatruni , Dmitri E. Nikonov , Ramamoorthy Ramesh , Huichu Li , Ian A. Young

Shrinking spintronic devices to the nanoscale ultimately requires localized control of individual atomic magnetic moments. At these length scales, the exchange interaction plays important roles, such as in the stabilization of…