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We exploit the geometry of magnetic nanowires, which define 1D contacts to an encapsulated graphene channel, to introduce an out-of-plane component in the polarisation of spin carriers. By design, the magnetic nanowires traverse the angled…

We study spin mixing dynamics in a chromium dipolar Bose-Einstein Condensate, after tilting the atomic spins by an angle $\theta$ with respect to the magnetic field. Spin mixing is triggered by dipolar coupling, but, once dynamics has…

A novel spin orientation mechanism - dynamic electron spin polarization has been recently suggested in Phys. Rev. Lett. $\mathbf{125}$, 156801 (2020). It takes place for unpolarized optical excitation in weak magnetic fields of the order of…

Mesoscale and Nanoscale Physics · Physics 2021-09-15 T. S. Shamirzaev , A. V. Shumilin , D. S. Smirnov , J. Rautert , D. R. Yakovlev , M. Bayer

The orbital magnetic moment is still surprisingly not well understood, in contrast to the spin part. Its description in finite systems, such as isolated atoms and molecules, is not problematic, but it was only recently that a rigorous…

Mesoscale and Nanoscale Physics · Physics 2018-10-03 Sascha Brinker , Manuel dos Santos Dias , Samir Lounis

Inelastic neutron scattering (INS), electron spin (ESR) and nuclear magnetic resonance (NMR) measurements were employed to establish the origin of the strong magnetic signal in lightly hole-doped La_{1-x}Sr_xCoO_3, x=0.002. Both, INS and…

Strongly Correlated Electrons · Physics 2008-12-15 A. Podlesnyak , M. Russina , A. Furrer , A. Alfonsov , E. Vavilova , V. Kataev , B. Büchner , Th. Strässle , E. Pomjakushina , K. Conder , D. I. Khomskii

We present a measurement of the deuteron spin-dependent structure function g1d based on the data collected by the COMPASS experiment at CERN during the years 2002-2004. The data provide an accurate evaluation for Gamma_1^d, the first moment…

High Energy Physics - Experiment · Physics 2008-11-26 The COMPASS Collaboration , V. Yu. Alexakhin

It is shown that the Kerr rotation of spin-polarized electrons is modulated by the distance of the electrons from the sample surface. Time-resolved Kerr rotation of optically-excited spin-polarized electrons in the depletion layer of…

Mesoscale and Nanoscale Physics · Physics 2009-11-11 G. Salis , S. F. Alvarado

The exciton recombination and spin dynamics are investigated both experimentally and theoretically in an ensemble of indirect band gap (In,Al)As/AlAs quantum dots (QDs) with type-I band alignment. The magnetic-field-induced circular…

Mesoscale and Nanoscale Physics · Physics 2025-07-08 T. S. Shamirzaev , D. R. Yakovlev , D. S. Smirnov , V. N. Mantsevich , D. Kudlacik , A. Yu. Gornov , A. K. Gutakovskii , M. Bayer

We propose an experiment to use the magneto-optical Faraday effect to probe the dynamic Hall conductivity of spin liquid candidates. Theory predicts that an external magnetic field will generate an internal gauge field. If the source of…

Strongly Correlated Electrons · Physics 2015-06-22 Jacob R. Colbert , H. Dennis Drew , Patrick A. Lee

We report on the origin of ferromagnetic like behaviour observed for 2.4 nm size Pd nanoparticles. Localised magnetic moments on metallic surfaces have been recently shown to induce orbital motion of the itinerant electrons via spin-orbit…

Materials Science · Physics 2007-05-23 A. Hernando , B. Sampedro , M. A. Garcia , P. Marin , G. Rivero , P. Crespo , J. M. Gonzalez

We investigate the electrical conductivity of spin-polarized graphene in the presence of short-ranged magnetic scatterers within the relaxation time approximation and the semi-classical Boltzmann approach. Spin-flip scattering of the…

Mesoscale and Nanoscale Physics · Physics 2013-12-18 B. Zare Rameshti , A. G. Moghaddam , S. H. Abedinpour , S. Abdizadeh , M. Zareyan

Within the collinear factorization framework based on Generalized Parton Distributions (GPDs), we calculate the spin density matrix of exclusively produced quark and antiquark pairs $u\bar{u}$, $d\bar{d}$, $s\bar{s}$, $c\bar{c}$, $b\bar{b}$…

High Energy Physics - Phenomenology · Physics 2026-04-01 Yoshitaka Hatta , Jakob Schoenleber

Electrically generated spin polarization is probed directly in bulk GaN using Kerr rotation spectroscopy. A series of n-type GaN epilayers are grown in the wurtzite phase both by molecular beam epitaxy (MBE) and metalorganic chemical vapor…

Mesoscale and Nanoscale Physics · Physics 2015-05-13 W. F. Koehl , M. H. Wong , C. Poblenz , B. Swenson , U. K. Mishra , J. S. Speck , D. D. Awschalom

R$_2$Mo$_2$O$_7$ compounds show a ferromagnetic metal-insulator spin glass transition tuned by the radius of the rare earth ion R$^{3+}$. We have studied Gd$_2$Mo$_2$O$_7$ located on the verge of the transition, by neutron diffraction on a…

Strongly Correlated Electrons · Physics 2007-05-23 I. Mirebeau , A. Apetrei , I. Goncharenko , D. Andreica , P. Bonville , J. P. Sanchez , A. Amato , E. Suard , W. A. Crichton

The spin-dependent recombination (SDR) has been observed in GaAs_{1-x}N_{x} (x = 2.1, 2.7, 3.4%) at room temperature. It reveals itself in a decrease of the edge photoluminescence (PL) intensity by more than a factor of 3 when either the…

We experimentally observe nonlinear spin torque in metallic bilayers of platinum and permalloy by means of spin-torque ferromagnetic-resonance (ST-FMR) under massive dc current injection. The observed nonlinear spin torque exerted to…

Mesoscale and Nanoscale Physics · Physics 2024-06-18 Toshiyuki Kodama , Nobuaki Kikuchi , Takahiro Chiba , Satoshi Okamoto , Seigo Ohno , Satoshi Tomita

We theoretically investigate a scattering configuration in Compton scattering, in which the orientation of the electron spin is reversed and simultaneously, the photon polarization changes from linear polarization into circular…

Quantum Physics · Physics 2017-12-11 Sven Ahrens , Chang-Pu Sun

A fourteen-fold anisotropy in the spin transport efficiency parallel and perpendicular to the charge transport is observed in a vertically-biased (Ga,Mn)As-based spin-polarized light emitting diode. The spin polarization is determined by…

Mesoscale and Nanoscale Physics · Physics 2009-11-07 D. K. Young , E. Johnston-Halperin , D. D. Awschalom , Y. Ohno , H. Ohno

We present a comprehensive study of the magnetic exchange Hamiltonian of elemental Gadolinium. We use neutron scattering to measure the magnon spectrum over the entire Brillouin zone, and fit the excitations to a spin wave model to extract…

Strongly Correlated Electrons · Physics 2022-08-09 Allen Scheie , Pontus Laurell , Paul A. McClarty , Garrett E. Granroth , Matt B. Stone , Roderich Moessner , Stephen E. Nagler

X-ray resonant magnetic scattering studies of rare earth magnetic ordering were performed on perovskite manganites RMnO3 (R = Dy, Gd) in an applied magnetic field. The data reveal that the field-induced three-fold polarization enhancement…