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Transition-metal dichalcogenides (TMDs) are layered compounds that support many electronic phases, including various charge density waves, superconducting, and Mott insulating states. Their intercalation with magnetic ions introduces…

The spin relaxation in the molecular magnet \Mn12 is investigated by a novel type of high-frequency magnetic spectroscopy. By reversing the external magnetic field the intensities of the $|\pm 10>\to |\pm 9>$ transitions within the ground…

Strongly Correlated Electrons · Physics 2016-08-31 M. Dressel , B. Gorshunov , K. Rajagopal , S. Vongtragool , A. A. Mukhin

Motivated by recent experiments, where the tunnel magnetoresitance (TMR) of a spin valve was measured locally, we theoretically study the distribution of TMR along the surface of magnetized electrodes. We show that, even in the absence of…

Mesoscale and Nanoscale Physics · Physics 2015-06-17 R. C. Roundy , D. Nemirovsky , V. Kagalovsky , M. E. Raikh

Two-dimensional (2D) crystals, such as graphene, hexagonal boron nitride and transitional metal dichalcogenides, have attracted tremendous amount of attention over the past decade due to their extraordinary thermal, electrical and optical…

Materials Science · Physics 2017-02-16 Y. Zhao , Z. Wan , U. Hetmaniuk , M. P. Anantram

Anisotropic magnetoresistance (AMR) is a relativistic magnetotransport phenomenon arising from combined effects of spin-orbit coupling and broken symmetry of a ferromagnetically ordered state of the system. In this work we focus on one…

Inelastic neutron scattering experiments are performed on a nanoporous metal complex Cu-Trans-1,4-Cyclohexanedicarboxylic Acid (Cu-CHD) adsorbing O2 molecules to identify the spin model of the O2-based magnet realized in the host complex.…

Strongly Correlated Electrons · Physics 2016-03-23 M. Soda , Y. Honma , S. Takamizawa , S. Ohira-Kawamura , K. Nakajima , T. Masuda

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 develop a theory for spin transport and magnetization dynamics in a quantum-dot spin valve, i.e., two magnetic reservoirs coupled to a quantum dot. Our theory is able to take into account effects of strong correlations. We demonstrate…

Mesoscale and Nanoscale Physics · Physics 2018-01-09 N. M. Gergs , S. A. Bender , R. A. Duine , D. Schuricht

The linear conductance of a carbon nanotube quantum dot in the Wigner molecule regime, coupled to two scanning tunnel microscope tips is inspected. Considering the high temperature regime, the nanotube quantum dot is described by means of…

Mesoscale and Nanoscale Physics · Physics 2013-09-12 N. Traverso Ziani , F. Cavaliere , M. Sassetti

We study transport properties of a single-molecule magnet (SMM) weakly coupled to one nonmagnetic and one ferromagnetic lead. Using the diagrammatic technique in real time, we calculate transport in the sequential and cotunneling regimes…

Mesoscale and Nanoscale Physics · Physics 2010-10-29 Maciej Misiorny , Irenuesz Weymann , Jozef Barnas

Negative longitudinal magnetoresistance (NLMR) has been reported in a variety of materials and has attracted extensive attention as an electrotransport hallmark of topological Weyl semimetals. However, its origin is still under debate.…

New Mn12 single-molecule magnets (SMM's) with the composition [Mn12O12(O2CR)16(H2O)4] were prepared and structurally characterized. Complexes of this type can exhibit two out-of-phase ac magnetic susceptibility signals, one in the 4-7 K…

Nuclear magnetic resonance has emerged as a vital technique for investigating strongly correlated electron systems, and is particularly important for studying superconductivity. In this paper the basic features of NMR as a technique for…

Superconductivity · Physics 2009-01-26 N. J. Curro

We study the nonequilibrium spin transport through a quantum dot containing two spin levels coupled to the magnetic electrodes. A formula for the spin-dependent current is obtained and is applied to discuss the linear conductance and…

Mesoscale and Nanoscale Physics · Physics 2009-11-07 Ping Zhang , Qi-Kun Xue , Yu-Peng Wang , X. C. Xie

Spin-dependent electronic transport in magnetic double-island devices is considered theoretically in the sequential tunneling regime. Electric current and tunnel magnetoresistance are analyzed as a function of the bias voltage and spin…

Mesoscale and Nanoscale Physics · Physics 2009-11-11 Ireneusz Weymann , Jozef Barnas

Effect of dc electric field on transport of highly mobile 2D electrons is studied in wide GaAs single quantum wells placed in titled magnetic fields. The study shows that in perpendicular magnetic field resistance oscillates due to electric…

Mesoscale and Nanoscale Physics · Physics 2016-07-06 William Mayer , Sergey Vitkalov , A. A. Bykov

In this paper, we investigate the transport properties of spinful electrons tunnel-coupled to a finite-length Majorana nanowire on one end which is further tunnel-coupled to a quantum dot (QD) at the other end. Using a full counting…

Mesoscale and Nanoscale Physics · Physics 2020-08-12 Alexander Schuray , Manuel Rammler , Patrik Recher

We unravel the critical role of vibrational mode softening in single-molecule electronic devices at high bias. Our theoretical analysis is carried out with a minimal model for molecular junctions, with mode softening arising due to…

Mesoscale and Nanoscale Physics · Physics 2020-08-18 Junjie Liu , Dvira Segal

New insights into transport properties of nanostructures with a linear dispersion along one direction and a quadratic dispersion along another are obtained by analysing their spectral stability properties under small perturbations.…

Mathematical Physics · Physics 2022-08-22 David Krejcirik , Pedro. R. S. Antunes

Non-equilibrium transport in hybrid semiconductor-superconductor nanowires is crucial for many quantum phenomena such as generating entangled states via cross Andreev reflection (CAR) processes, detecting topological superconductivity,…

Mesoscale and Nanoscale Physics · Physics 2024-09-11 Paweł Szumniak , Daniel Loss , Jelena Klinovaja