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We propose a gate-controllable spin-battery for spin current. The spin-battery consists of a lateral double quantum dot under a uniform magnetic field. A finite DC spin-current is driven out of the device by controlling a set of gate…

Mesoscale and Nanoscale Physics · Physics 2009-11-10 Wen Long , Qing-feng Sun , Hong Guo , Jian Wang

We describe a spin logic device with controllable magnetization switching of perpendicularly magnetized ferromagnet / heavy metal structures on a ferroelectric (1-x)[Pb(Mg1/3Nb2/3)O3]-x[PbTiO3] (PMN-PT) substrate using current-induced…

We consider the magnonic properties of two dipolarly coupled magnetic stripes, both deposited on a normal conductive substrate with strong spin-orbit coupling. A charge current in the substrate acts on the adjacent magnets with spin-orbit…

Strongly Correlated Electrons · Physics 2022-09-02 Xi-guang Wang , Dominik Schulz , Guang-hua Guo , Jamal Berakdar

Magnonic crystals with locally alternating properties and specific periodicities exhibit interesting effects, such as a multitude of different spin-wave states and large band gaps. This work aims for demonstrating and understanding the key…

his study is an investigation of spin wave spectrum in macrostructures composed of two ferromagnetic materials and showing a 3D periodicity: spherical ferromagnetic grains disposed in the nodes of a 3D crystal lattice are embedded in a…

Other Condensed Matter · Physics 2007-05-23 M. Krawczyk , H. Puszkarski

Despite the unprecedented downscaling of CMOS integrated circuits, memory-intensive machine learning and artificial intelligence applications are limited by data conversion between memory and processor. There is a challenging quest for…

Mesoscale and Nanoscale Physics · Physics 2023-04-19 Korbinian Baumgaertl , Dirk Grundler

Hybrid systems combining magnons and superconducting quantum circuits have attracted increasing interest in recent years. Magnonic crystals (MCs) are one of the building blocks of room-temperature magnonics and can be used to create devices…

Materials Science · Physics 2019-03-01 S. Kosen , R. G. E. Morris , A. F. van Loo , A. D. Karenowska

Single-mode high-index-contrast waveguides have been ubiquitously exploited in optical, microwave, and phononic structures for achieving enhanced wave-matter interactions. Although micro-scale optomechanical and electro-optical devices have…

Optics · Physics 2021-01-05 Na Zhu , Xufeng Zhang , Xu Han , Chang-Ling Zou , Hong X. Tang

The phenomenon of wave trapping in an artificial crystal with limited number of periods is demonstrated experimentally using spin waves in a magnonic crystal. The information stored in the crystal is recovered afterwards by parametric…

We propose model magneto-logic NOR and NAND gates using a spin valve pillar, wherein the logical operation is induced by spin-polarized currents which also form the logical inputs. The operation is facilitated by the simultaneous presence…

Mesoscale and Nanoscale Physics · Physics 2014-01-07 C. Sanid , S. Murugesh

The study of moir\'e superlattices has revealed intriguing phenomena in electronic systems, including unconventional superconductivity and ferromagnetism observed in magic-angle bilayer graphene. This approach has recently been adapted to…

Mesoscale and Nanoscale Physics · Physics 2024-10-10 Jilei Chen , Marco Madami , Gianluca Gubbiotti , Haiming Yu

Solid-state quantum dots are promising candidates for efficient light-matter interfaces connecting internal spin degrees of freedom to the states of emitted photons. However, selection rules prevent the combination of efficient spin control…

Various latest experiments have proven the theoretical prediction that domain walls in planar magnetic structures can channel spin waves as outstanding magnonic waveguides, establishing a superb platform for building magnonic devices.…

Mesoscale and Nanoscale Physics · Physics 2020-03-20 Xiangjun Xing , Yan Zhou , H. B. Braun

We demonstrate two types of waveguide structures which optically confine exciton- polaritons in two dimensions and act as polaritonic channels. We show a strong optical confinement in an etched rectangular waveguide, that significantly…

Mesoscale and Nanoscale Physics · Physics 2023-08-15 Dror Liran , Itamar Rosenberg , Kenneth West , Loren Pfeiffer , Ronen Rapaport

We theoretically demonstrate linear spin-wave nonreciprocity in a Ni80Fe20 nanostripe waveguide, based on interband magnonic transitions induced by a time-reversal and spatialinversion symmetry breaking magnetic field. An analytical…

Mesoscale and Nanoscale Physics · Physics 2015-06-16 Kai Di , Hock Siah Lim , Vanessa Li Zhang , Ser Choon Ng , Meng Hau Kuok

We report a study on spin conductance in ultra-thin films of Yttrium Iron Garnet (YIG), where spin transport is provided by propagating spin waves, that are generated and detected by direct and inverse spin Hall effects in two Pt wires…

Artificial square spin ices are structures composed of magnetic elements arranged on a geometrically frustrated lattice and located on the sites of a two-dimensional square lattice, such that there are four interacting magnetic elements at…

Mesoscale and Nanoscale Physics · Physics 2016-05-04 Ezio Iacocca , Sebastian Gliga , Robert L. Stamps , Olle Heinonen

Spin waves (magnons) in 2D materials have received increasing interest due to their unique states and potential for tunability. However, many interesting features of these systems, including Dirac points and topological states, occur at…

Mesoscale and Nanoscale Physics · Physics 2026-02-03 Bobby Kaman , Jinho Lim , Yingkai Liu , Axel Hoffmann

Generation of second-harmonic waves is one of the universal nonlinear phenomena that have found numerous technical applications in many modern technologies, in particular, in photonics. This phenomenon also has great potential in the field…

Mesoscale and Nanoscale Physics · Physics 2024-03-01 K. O. Nikolaev , S. R. Lake , G. Schmidt , S. O. Demokritov , V. E. Demidov

Yttrium iron garnet (YIG) magnonics has garnered significant research interest because of the unique properties of magnons (quasiparticles of collective spin excitation) for signal processing. In particular, hybrid systems based on YIG…

Mesoscale and Nanoscale Physics · Physics 2024-12-20 Jing Xu , Connor Horn , Yu Jiang , Amin Pishehvar , Xinhao Li , Daniel Rosenmann , Xu Han , Miguel Levy , Supratik Guha , Xufeng Zhang