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相关论文: A model for the ESR-STM phenomenon

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A scanning tunneling microscope (STM) can probe the inelastic spin excitations of single magnetic atoms in a surface via spin-flip assisted tunneling. A particular and intriguing case is the Mn dimer case. We show here that the existing…

介观与纳米尺度物理 · 物理学 2022-08-31 F. Delgado , J. Fernández-Rossier

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…

介观与纳米尺度物理 · 物理学 2015-06-17 R. C. Roundy , D. Nemirovsky , V. Kagalovsky , M. E. Raikh

We present a method for precisely measuring the tunnel splitting in single-molecule magnets using electron-spin resonance, and use these measurements to precisely and independently determine the underlying transverse anisotropy parameter,…

介观与纳米尺度物理 · 物理学 2016-12-13 Charles A. Collett , Rafael A. Allão Cassaro , Jonathan R. Friedman

Systems showing stochastic resonance (SR) or coherent resonance (CR) share some features, in particular the nearby periodic character of the signal. We show that in spite of this resemblance the different underlying dynamics can be detected…

混沌动力学 · 物理学 2009-11-11 R. Centurelli , S. Musacchio , R. A. Pasmanter , A. Vulpiani

Coherent spin resonance techniques, such as nuclear and electron spin resonance spectroscopy, have revolutionized non-invasive imaging by providing spectrally resolved information about spin dynamics. Motivated by the recent emergence of…

量子物理 · 物理学 2026-02-25 Santiago Beltrán-Romero , Stefan Löffler , Dennis Rätzel , Philipp Haslinger

We propose a method of two-beam spin noise spectroscopy to test the spin transport at equilibrium via analysis of correlations between time-shifted spin fluctuations at different space locations. This method allows one to determine the…

介观与纳米尺度物理 · 物理学 2016-06-24 Yuriy V. Pershin , Valeriy A. Slipko , Dibyendu Roy , Nikolai A. Sinitsyn

Certifying quantum entanglement is a critical step towards realizing quantum-coherent applications of surface spin systems. In this work, we show that entanglement can be unambiguously shown in a scanning tunneling microscope (STM) with…

介观与纳米尺度物理 · 物理学 2024-01-29 Rik Broekhoven , Curie Lee , Soo-hyon Phark , Sander Otte , Christoph Wolf

Historically, electron spin resonance (ESR) has provided excellent insight into the electronic, magnetic, and chemical structure of samples hosting spin centers. In particular, the hyperfine interaction between the electron and the nuclear…

介观与纳米尺度物理 · 物理学 2022-11-23 Laëtitia Farinacci , Lukas M. Veldman , Philip Willke , Sander Otte

We present a novel method that combines spin resonance spectroscopy with transmission electron microscopy (TEM), enabling localized in-situ detection of microwave (MW)-driven spin excitations. Our approach utilizes continuous wave MW…

The ongoing miniaturization in nanoscience and -technology challenges the sensitivity and selectivity of experimental analysis methods to the ultimate level of single atoms and molecules. A promising new approach, addressed here, focuses on…

介观与纳米尺度物理 · 物理学 2014-03-28 Stefan Müllegger , Stefano Tebi , Amal K. Das , Wolfgang Schöfberger , Felix Faschinger , Reinhold Koch

A comprehensive study of a force detected single-spin magnetic resonance measurement concept with atomic spatial resolution is presented. The method is based upon electrostatic force detection of spin-selection rule controlled…

介观与纳米尺度物理 · 物理学 2015-06-11 A. Payne , K. Ambal , C. Boehme , C. C. Williams

Consider a spiked random tensor obtained as a mixture of two components: noise in the form of a symmetric Gaussian $p$-tensor for $p\geq 3$ and signal in the form of a symmetric low-rank random tensor. The latter is defined as a linear…

概率论 · 数学 2021-10-11 Wei-Kuo Chen , Madeline Handschy , Gilad Lerman

We exploit the pumped spin-current and current noise spectra under equilibrium condition in a single quantum dot connected to two normal leads, as an electrical scheme for detection of the electron spin resonance (ESR) and decoherence. We…

介观与纳米尺度物理 · 物理学 2009-11-10 Bing Dong , H. L. Cui , X. L. Lei

We report the development of a continuous-wave and pulsed X-band electron spin resonance (ESR) spectrometer for the study of spins on ordered surfaces down to cryogenic temperatures. The spectrometer operates in ultra-high vacuum and…

We investigate the angular dependence of the spin torque generated when applying a temperature difference across a spin-valve. Our study shows the presence of a non-trivial fixed point in this angular dependence, i.e. the possibility for a…

介观与纳米尺度物理 · 物理学 2014-10-29 David Luc , Xavier Waintal

We study whether a direct measurement of the absolute temperature of a Magnetic Tunnel Junction (MTJ) can be performed using the high frequency electrical noise that it delivers under a finite voltage bias. Our method includes quasi-static…

材料科学 · 物理学 2016-08-03 Adrien Le Goff , Vladimir Nikitin , Thibaut Devolder

We present a robust but still efficient simulation approach for high-resolution scanning tunneling microscopy with a flexible tip apex showing sharp submolecular features. The approach takes into account the electronic structure of sample…

介观与纳米尺度物理 · 物理学 2017-01-11 O. Krejci , P. Hapala , M. Ondracek , P. Jelinek

New phenomenon is experimentally identified: ferroelectrical spin wave resonance (FE SWR), which consist in characteristic splitting of vibration (electronic-vibration) levels in optical spectra of interacting localized centers. Spectral…

其他凝聚态物理 · 物理学 2015-05-14 D. P. Yearchuck , E. D. Yerchak , A. I. Kirilenko , V. I. Popechits

To enable the practical use of skyrmion-based devices, it is essential to achieve a balance between energy efficiency and thermal stability, while also ensuring reliable electrical detection against noise. Understanding how a skyrmion…

介观与纳米尺度物理 · 物理学 2023-08-21 Kang Wang , Yiou Zhang , Vineetha Bheemarasetty , See-Chen Ying , Gang Xiao

We demonstrate a technique of broadband spin torque ferromagnetic resonance (ST-FMR) with magnetic field modulation for measurements of spin wave properties in magnetic nanostructures. This technique gives great improvement in sensitivity…

介观与纳米尺度物理 · 物理学 2013-10-31 A. M. Gonçalves , I. Barsukov , Y. -J. Chen , L. Yang , J. A. Katine , I. N. Krivorotov