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One of the key research problems in stellar physics is to decipher the small-scale magnetic activity of the quiet solar atmosphere. Recent magneto-convection simulations that account for small-scale dynamo action have provided…

Solar and Stellar Astrophysics · Physics 2018-08-29 T. del Pino Alemán , J. Trujillo Bueno , J. Štěpán , N. Shchukina

We present spin transport studies on a low-field, room-temperature magnetoelectric multiferroic polycrystalline $\text{Sr}_{3}\text{Co}_{2}\text{Fe}_{24}\text{O}_{41}$ (SCFO)|Pt heterostructure wherein a highly tunable transverse conical…

Materials Science · Physics 2022-05-25 Aditya A. Wagh , Priyanka Garg , Kingshuk Mallick , Suja Elizabeth , P. S. Anil Kumar

We present a general stochastic Liouville theory of electrical transport across a barrier between two conductors that occurs via sequential hopping through a single defect's spin-0 to spin-1/2 transition. We find magneto-conductances…

Mesoscale and Nanoscale Physics · Physics 2021-02-03 Nicholas J. Harmon , Michael E. Flatté

The specific band structure of graphene, with its unique valley structure and Dirac neutrality point separating hole states from electron states has led to the observation of new electronic transport phenomena such as anomalously quantized…

Mesoscale and Nanoscale Physics · Physics 2011-05-05 Nikolaos Tombros , Csaba Jozsa , Mihaita Popinciuc , Harry T. Jonkman , Bart J. van Wees

The current generation of spintronic devices, which use electron-spin relies on linear operations for spin-injection, transport and detection processes. The existence of nonlinearity in a spintronic device is indispensable for spin-based…

Mesoscale and Nanoscale Physics · Physics 2021-01-04 S. Omar , M. Gurram , K. Watanabe , T. Taniguchi , M. H. D. Guimarães , B. J. van Wees

Giant magnetoresistance (GMR) material has great potential as next generation magnetic field sensing devices, have magnetic properties and high electrical potential to be developed into various applications such as: magnetic field sensor…

Mesoscale and Nanoscale Physics · Physics 2012-02-02 Mitra Djamal , Ramli , Sparisoma Viridi , Khairurrijal

Graphene is a promising substrate for future spintronics devices owing to its remarkable electronic mobility and low spin-orbit coupling. Hanle precession in spin valve devices is commonly used to evaluate the spin diffusion and spin…

Mesoscale and Nanoscale Physics · Physics 2021-03-24 Emile Fourneau , Alejandro V. Silhanek , Ngoc D. Nguyen

Magnetic helix (MH) structure can be a role model for future spintronic devices. Utilizing the advantage of constructing possible magnetic configurations, in the present work first time we investigate spintronic behavior, to the best of our…

Mesoscale and Nanoscale Physics · Physics 2019-11-06 Suparna Sarkar , Santanu K. Maiti

One of the key elements in spintronics research is the spin Hall effect, allowing to generate spin currents from charge currents. A large spin Hall effect is observed in materials with strong spin orbit coupling, e.g., Pt. Recent research…

Spin precession experiments in lateral spin devices are a powerful tool for probing the spin transport properties of materials. These experiments can be quantitatively described using the Bloch diffusion equation, which offers a practical…

Since its discovery, graphene has been a promising material for spintronics: its low spin-orbit coupling, negligible hyperfine interaction, and high electron mobility are obvious advantages for transporting spin information over long…

Mesoscale and Nanoscale Physics · Physics 2018-12-04 Jose H. Garcia , Marc Vila , Aron W. Cummings , Stephan Roche

We investigate the ground-state Hanle effect in alkali-metal vapor irradiating by a resonant elliptically polarized light wave. The magneto-optical resonances are observed as a change in the ellipticity parameter of the light wave…

Atomic Physics · Physics 2025-11-25 D. V. Brazhnikov , A. O. Makarov , K. S. Kozlova , A. N. Goncharov

The study of magnetoresistance (MR) phenomena has been pivotal in advancing magnetic sensors and spintronic devices. Helimagnets present an intriguing avenue for spintronics research. Theoretical predictions suggest that MR magnitude in the…

Magnetotransport properties of spin-glass-like Ge/1-x-y/Sn/x/Mn/y/Te mixed crystals with chemical composition changing in the range of 0.083 < x < 0.142 and 0.012 < y < 0.119 are presented. The observed negative magnetoresistance we…

Materials Science · Physics 2013-02-15 L. Kilanski , R. Szymczak , W. Dobrowolski , A. Podgórni , A. Avdonin , V. E. Slynko , E. I. Slynko

Spin accumulation and spin precession in single-layer graphene are studied by non-local spin valve measurements at room temperature. The dependence of the non-local magnetoresistance on electrode spacing is investigated and the results…

Mesoscale and Nanoscale Physics · Physics 2010-01-20 Wei Han , K. Pi , W. Bao , K. M. McCreary , Yan Li , W. H. Wang , C. N. Lau , R. K. Kawakami

The Hanle-type spin precession method was carried out associated with non-local magnetoresistance measurement using a highly doped (5\times10^19) silicon channel. The spin diffusion length obtained by the Hanle-method is in good agreement…

Materials Science · Physics 2015-05-18 T. Sasaki , T. Oikawa , T. Suzuki , M. Shiraishi , Y. Suzuki , K. Noguchi

Hanle effect is ubiquitous in the study of spin-related phenomena and has been used to determine spin lifetime, precession and transport in semiconductors. Here, we report an experimental observation of anomalous Hanle effect in individual…

Mesoscale and Nanoscale Physics · Physics 2009-10-12 O. Krebs , P. Maletinsky , T. Amand , B. Urbaszek , A. Lemaître , P. Voisin , X. Marie , A. Imamoglu

Electrical currents in a magnetic insulator/heavy metal heterostructure can induce two simultaneous effects, namely, spin Hall magnetoresistance (SMR) on the heavy metal side and spin-orbit torques (SOTs) on the magnetic insulator side.…

We uncover two anomalous features in the nonlocal transport behavior of two-dimensional metallic materials with spin-orbit coupling. Firstly, the nonlocal resistance can have negative values and oscillate with distance, even in the absence…

Mesoscale and Nanoscale Physics · Physics 2017-10-04 Chunli Huang , Y. D Chong , Miguel A. Cazalilla

Non-local spin injection in lateral spin valves generates a pure spin current which is a diffusive flow of spins (i.e. spin angular momentums) with no net charge flow. The diffusive spins lose phase coherency in precession while undergoing…

Mesoscale and Nanoscale Physics · Physics 2012-07-02 Hiroshi Idzuchi , Yasuhiro Fukuma , YoshiChika Otani