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We have used a combination of neutron resonant spin-echo and triple-axis spectroscopies to determine the energy, fine structure, and linewidth of the magnon resonance in the model spin-1/2 ladder antiferromagnet IPA-CuCl_3 at temperatures T…

Strongly Correlated Electrons · Physics 2015-03-18 B. Náfrádi , T. Keller , H. Manaka , A. Zheludev , B. Keimer

Temperature dependence of the tunnel magnetoresistance (TMR) was calculated in range of the quantum-ballistic model in the magnetic tunnel junctions (MTJs) with embedded nanoparticles (NPs). The electron tunnel transport through NP was…

Mesoscale and Nanoscale Physics · Physics 2016-03-28 Arthur Useinov , Chih-Huang Lai

The effect of scattering of conduction electrons by dynamical spin fluctuations on the thermopower in metals near a thermal phase transition into an antiferromagnetic phase is considered. We are interested in a transition at room…

Mesoscale and Nanoscale Physics · Physics 2021-09-08 Peter Wölfle , Timothy Ziman

Phase change memory (PCM) is a rapidly growing technology that not only offers advancements in storage-class memories but also enables in-memory data storage and processing towards overcoming the von Neumann bottleneck. In PCMs, the primary…

All-solid-state nanoscale devices capable of efficiently controlling a heat flow are crucial for advanced thermal management technologies. Here we predict a magnon-driven magnetothermal resistance (mMTR) effect in multilayers of…

Mesoscale and Nanoscale Physics · Physics 2025-07-03 Ping Tang , Ken-ichi Uchida , Gerrit E. W. Bauer

The isothermal remanent magnetization is used to investigate dynamical magnetic properties of spatially three dimensional spin glasses with different spin dimensionality (Ising, XY, Heisenberg). The isothermal remanent magnetization is…

Disordered Systems and Neural Networks · Physics 2016-06-29 R. Mathieu , M. Hudl , P. Nordblad , Y. Tokunaga , Y. Kaneko , Y. Tokura , H. Aruga Katori , A. Ito

In this paper, we combine thermal effects with Landau-Zener (LZ) quantum tunneling effects in a dynamical Monte Carlo (DMC) framework to produce satisfactory magnetization curves of single-molecule magnet (SMM) systems. We use the giant…

Mesoscale and Nanoscale Physics · Physics 2010-10-14 Gui-Bin Liu , Bang-Gui Liu

Topological insulators (TIs) with spin momentum locked topological surface states (TSS) are expected to exhibit a giant spin-orbit torque (SOT) in the TI/ferromagnet systems. To date, the TI SOT driven magnetization switching is solely…

The exploration of memristors' behavior at cryogenic temperatures has become crucial due to the growing interest in quantum computing and cryogenic electronics. In this context, our study focuses on the characterization at cryogenic…

A current problem in semiconductor spin-based electronics is the difficulty of experimentally expressing the effect of spin-polarized current in electrical circuit measurements. We present a theoretical solution with the principle of…

Mesoscale and Nanoscale Physics · Physics 2008-02-20 Hanan Dery , Lukasz Cywinski , Lu J. Sham

We report a novel feature of the temperature induced magnetization jump observed along the a-axis of the GdVO3 single crystal at temperature TM = 0.8 K. Below TM, the compound shows no coercivity and remanent magnetization indicating a…

Strongly Correlated Electrons · Physics 2009-11-11 L D Tung

Thermal transmission in a molecular transistor with fully spin-polarized electrodes subjected to a temperature gradient is considered. The problem has been solved by using density matrix method in perturbation approach over small tunneling…

Mesoscale and Nanoscale Physics · Physics 2022-07-12 A. D. Shkop

We studied the magnetization reversal rates of thermally assisted spin transfer torque switching in a ferromagnetically coupled synthetic free layer theoretically. By solving the Fokker-Planck equation, we obtained the analytical expression…

Mesoscale and Nanoscale Physics · Physics 2011-02-28 Tomohiro Taniguchi , Hiroshi Imamura

A new approach to increase the downsize scalability of perpendicular STT-MRAM is presented. It consists in significantly increasing the thickness of the storage layer in out-of-plane magnetized tunnel junctions (pMTJ) as compared to…

Spiking Neural Networks (SNNs) are gaining widespread momentum in the field of neuromorphic computing. These network systems integrated with neurons and synapses provide computational efficiency by mimicking the human brain. It is desired…

Emerging Technologies · Computer Science 2021-10-27 Omkar Phadke , Jayatika Sakhuja , Vivek Saraswat , Udayan Ganguly

Electron spin resonance with a scanning tunneling microscope (ESR-STM) combines the high energy resolution of spin resonance spectroscopy with the atomic scale control and spatial resolution of STM. Here we describe the upgrade of a…

Instrumentation and Detectors · Physics 2019-01-30 Fabian D. Natterer , François Patthey , Tobias Bilgeri , Patrick R. Forrester , Nicolas Weiss , Harald Brune

A hallmark of materials with extremely large magnetoresistance (XMR) is the transformative 'turn-on' temperature behavior: when the applied magnetic field $H$ is above certain value, the resistivity versus temperature $\rho(T)$ curve shows…

Materials Science · Physics 2015-11-05 Y. L. Wang , L. R. Thoutam , Z. L. Xiao , J. Hu , S. Das , Z. Q. Mao , J. Wei , R. Divan , A. Luican-Mayer , G. W. Crabtree , W. K. Kwok

Electrical switching and readout of antiferromagnets allows to exploit the unique properties of antiferromagnetic materials in nanoscopic electronic devices. Here we report experiments on the spin-orbit torque induced electrical switching…

Materials Science · Physics 2020-03-25 Mareike Dunz , Tristan Matalla-Wagner , Markus Meinert

Magnetic skyrmions are nanoscale topological spin structures offering great promise for next-generation information storage technologies. The recent discovery of sub-100 nm room temperature (RT) skyrmions in several multilayer films has…

A heat-assisted multiferroic solid-state memory design is proposed and analysed, based on a PbNbZrSnTiO3 antiferroelectric substrate and Ni81Fe19 magnetic free layer. Information is stored as magnetisation direction in the free layer of a…

Mesoscale and Nanoscale Physics · Physics 2017-10-11 Serban Lepadatu , Melvin M. Vopson
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