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

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We review the problem of spin decoherence of magnetic atoms deposited on a surface. Recent breakthroughs in scanning tunnelling microscopy (STM) make it possible to probe the spin dynamics of individual atoms, either isolated or integrated…

介观与纳米尺度物理 · 物理学 2017-02-14 F. Delgado , J. Fernández-Rossier

Raman transitions are used in quantum simulations with ultracold atoms for cooling, spectroscopy and creation of artificial gauge fields. Spatial shaping of the Raman fields allows local control of the effective Rabi frequency, which can be…

量子气体 · 物理学 2020-09-23 Yigal Ilin , Shai Tsesses , Guy Bartal , Yoav Sagi

A single-spin qubit placed near the surface of a conductor acquires an additional contribution to its $1/T_1$ relaxation rate due to magnetic noise created by electric current fluctuations in the material. We analyze this technique as a…

We introduce a microscopic model aimed at describing the behavior of fermionic excitations in the background of a magnetic texture called "spin-vortex checkerboard". This texture was proposed previously as a possible alternative to stripes…

超导电性 · 物理学 2020-02-11 Anastasia V. Aristova , Vivek K. Bhartiya , Boris V. Fine

We report the theoretical investigation of noise spectrum of spin current and spin transfer torque for non-colinear spin polarized transport in a spin-valve device which consists of normal scattering region connected by two ferromagnetic…

介观与纳米尺度物理 · 物理学 2015-06-12 Yunjin Yu , Hongxin Zhan , Langhui Wan , Bin Wang , Yadong Wei , Qingfeng Sun , Jian Wang

The spin-torque ferromagnetic resonance (ST-FMR) in a bilayer system consisting of a magnetic insulator such as Y3Fe5O12 and a normal metal with spin-orbit interaction such as Pt is addressed theoretically. We model the ST-FMR for all…

介观与纳米尺度物理 · 物理学 2015-03-03 Takahiro Chiba , Michael Schreier , Gerrit E. W. Bauer , Saburo Takahashi

The plasmonic tip of a scanning tunnelling microscope (STM) is functionalized with a single fluorescent molecule and is scanned on a plasmonic substrate. The tunneling current flowing through the tip-molecule-substrate junction generates a…

The local magnetic field in a Penning-Malmberg trap is found by measuring the temperatures that result when electron plasmas are illuminated by microwaves pulses. Multiple heating resonances are observed as the pulse frequencies are swept.…

等离子体物理 · 物理学 2020-03-18 E. D. Hunter , A. Christensen , J. Fajans , T. Friesen , E. Kur , J. S. Wurtele

We demonstrate the appearance of a purely entropic stochastic resonance (ESR) occurring in a geometrically confined system, where the irregular boundaries cause entropic barriers. The interplay between a periodic input signal, a constant…

统计力学 · 物理学 2009-09-22 P. S. Burada , G. Schmid , D. Reguera , J. M. Rubi , P. Hänggi

We present a systematic numerical modeling investigation of magnetization dynamics and thermal magnetic moment fluctuations of single magnetic domain nanoparticles in a configuration applicable to enhancing inductive magnetic resonance…

介观与纳米尺度物理 · 物理学 2021-06-16 Tahmid Kaisar , Md Mahadi Rajib , Hatem ElBidweihy , Mladen Barbic , Jayasimha Atulasimha

The spectral signatures of magnetic skyrmions under microwave field excitation are of fundamental interest and can be an asset for high frequency applications. These topological solitons can be tailored in multilayered thin films, but the…

A theory of low temperature (T) electron spin resonance (ESR) in half-integer spin antiferromagnetic chains is developed using field theory methods and avoiding previous approximations. It is compared to experiments on Cu benzoate. Power…

强关联电子 · 物理学 2009-10-31 Masaki Oshikawa , Ian Affleck

The nature of the magnetic ground state of highly frustrated systems remained puzzling to this day. Here, we have performed multifrequency electron spin resonance (ESR) measurements on a putative quantum spin liquid compound…

We theoretically investigate spin-polarized transport in a system composed of a ferromagnetic Scanning Tunneling Microscope (STM) tip coupled to an adsorbed atom (adatom) on a host surface. Electrons can tunnel directly from the tip to the…

介观与纳米尺度物理 · 物理学 2011-09-21 P. H. Penteado , F. M. Souza , A. C. Seridonio , E. Vernek , J. C. Egues

On-chip Electron Spin Resonance (ESR) of magnetic molecules requires the ability to precisely position nanosized samples in antinodes of the electro-magnetic field for maximal magnetic interaction. A method is developed to entrap…

介观与纳米尺度物理 · 物理学 2009-08-28 N. Groll , S. Bertaina , M. Pati , N. S. Dalal , I. Chiorescu

First systematic spin probe ESR study of water freezing has been conducted using TEMPOL and TEMPO as the probes. The spin probe signature of the water freezing has been described in terms of the collapse of narrow triplet spectrum into a…

软凝聚态物质 · 物理学 2008-10-28 Debamalya Banerjee , S. V. Bhat

We study the temperature dependence of spin Hall magnetoresistance (SMR) in antiferromagnetic insulator (AFI)/metal bilayer systems. We calculate the amplitude of the SMR signal by using a quantum Monte Carlo simulation and examine how the…

介观与纳米尺度物理 · 物理学 2023-03-08 Takuto Ishikawa , Mamoru Matsuo , Takeo Kato

We report the development of the frequency-modulation (FM) method for measuring electron spin resonance (ESR) absorption in the 210-420 GHz frequency range. We demonstrate that using a high-frequency ESR spectrometer without resonating…

强关联电子 · 物理学 2010-07-14 Balint Nafradi , Richard Gaal , Titusz Feher , Laszlo Forro

Spin-torque ferromagnetic resonance (ST-FMR) arises in heavy metal/ferromagnet heterostructures when an alternating charge current is passed through the bilayer stack. The methodology to detect the resonance is based on the anisotropic…

The spin torque ferromagnetic resonance (STFMR) is one of the popular methods for measurement of the spin Hall angle (SHA). However, in order to accurately determine SHA from STFMR measurements, the acquired data must be carefully analyzed:…

强关联电子 · 物理学 2021-08-25 Ranen Ben-Shalom , Nirel Bernstein , See-Hun Yang , Amir Capua