English
Related papers

Related papers: A model for the ESR-STM phenomenon

200 papers

We present here the straightforward implementation of pump-probe methods into existing scanning tunneling microscopy (STM) systems. Our method uses the waveform-sequencing abilities of a standard arbitrary waveform generator (AWG) and a…

Instrumentation and Detectors · Physics 2019-12-03 Fabian Donat Natterer

We present a simple home made solution enabling in-situ RF reflectometry measurements with a millikelvin scanning tunneling microscope (mk-STM). The additions described below were made using RF best practices following similar detection…

Instrumentation and Detectors · Physics 2025-12-18 Jonathan Marbey , Michael Dreyer , R. E. Butera

Spin-torque ferromagnetic resonance (ST-FMR) particularly using magnetic insulators and heavy metals possessing a giant spin Hall effect (SHE) has gotten a lot of attention for the development of spintronic devices. To devise complex…

Mesoscale and Nanoscale Physics · Physics 2021-08-12 Kuntal Roy

We measure spin-orbit torque generated by exfoliated layers of the low-symmetry semi-metal ZrTe$_3$ using the spin-torque ferromagnetic resonance (ST-FMR) technique. When the ZrTe$_3$ has a thickness greater than about 10 nm, artifacts due…

Materials Science · Physics 2022-08-09 Thow Min Cham , Saba Karimeddiny , Vishakha Gupta , Joseph A. Mittelstaedt , Daniel C. Ralph

Conventional spin Hall nano-oscillators (SHNOs) face fundamental power limitations due to the low anisotropic magnetoresistance (AMR < 0.3%) of ferromagnetic layers. To address this, we developed a synthetic antiferromagnetic spin-valve…

Mesoscale and Nanoscale Physics · Physics 2025-08-29 Chunhao Li , Xiaotian Zhao , Wenlong Cai , Long Liu , Wei Liu , Zhidong Zhang

We consider a system of two spins under a scanning tunneling microscope bias and derive its master equation. We find that the tunneling elements to the electronic contacts (tip and substrate) generate an exchange interaction between the…

Mesoscale and Nanoscale Physics · Physics 2021-08-25 Baruch Horovitz , Carsten Henkel

High-resolution tunneling electron spin transport properties (longitudinal spin current (LSC) and spin transfer torque (STT) maps) of topologically distinct real-space magnetic skyrmionic textures are reported by employing a 3D-WKB combined…

Materials Science · Physics 2020-10-27 Krisztián Palotás , Levente Rózsa , Eszter Simon , László Szunyogh

Spin-noise measurements can serve as direct probe for the microscopic decoherence mechanism of an electronic spin in semiconductor quantum dots (QD).We have calculated the spin-noise spectrum in the anisotropic central spin model using a…

Mesoscale and Nanoscale Physics · Physics 2014-05-20 Johannes Hackmann , Frithjof B. Anders

Electron spin resonance (ESR) spectroscopy is an important tool to characterize the ground state of conduction electrons and to measure their spin-relaxation times. Observing ESR of the itinerant electrons is thus of great importance in…

A simplified analytical model based on the charge drift approximation has been developed. It considers the resonant interaction of the synchronous wave with the flow of Larmor electrons in a magnetron. The model predicts stable coherent…

Accelerator Physics · Physics 2018-06-19 G. Kazakevich , R. Johnson , V. Lebedev , V. Yakovlev

Electrically detected electron spin resonance (EDESR) signals were acquired as a function of temperature in the 0.3-4.2 K temperature range in a AlGaAs/GaAs multiple quantum well sample at the filling factor at 5.7 T. In the particular…

Mesoscale and Nanoscale Physics · Physics 2009-11-07 Eugene Olshanetsky , Manyam Pilla , Joshua D. Caldwell , Shu-chen Liu , Clifford R. Bowers , Jerry A. Simmons , John L. Reno

The temperature dependence of electron spin resonance (ESR) was studied in $EuFe_{2-x}Co_{x}As_2 $ (x = 0.0, 0.067, 0.1, 0.2, 0.25, 0.285, 0.35, 0.4 and 0.5). The ESR spectrum of all the samples indicates that the g factor and peak-to-peak…

Superconductivity · Physics 2009-08-04 J. J. Ying , T. Wu , Q. J. Zheng , Y. He , G. Wu , Q. J. Li , Y. J. Yan , Y. L. Xie , R. H. Liu , X. F. Wang , X. H. Chen

The tunneling through a ferromagnet/normal metal/ferromagnet double junction in the Coulomb blockade regime is studied, assuming that the spin relaxation time of electron in the central metallic island is sufficiently large. Using the…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 H. Giang Bach , V. Hung Nguyen , T. Anh Pham

Electron paramagnetic resonance (EPR) spectroscopy is widely employed to characterize paramagnetic complexes. Recently, EPR combined with scanning tunneling microscopy (STM) achieved single-spin sensitivity with sub-angstrom spatial…

Mesoscale and Nanoscale Physics · Physics 2020-10-09 Tom S. Seifert , Stepan Kovarik , Dominik M. Juraschek , Nicola A. Spaldin , Pietro Gambardella , Sebastian Stepanow

The sub-nanometer distance between tip and sample in a scanning tunneling microscope (STM) enables the application of very large electric fields with a strength as high as ~ 1 GV/m. This has allowed for efficient electrical driving of Rabi…

Mesoscale and Nanoscale Physics · Physics 2024-01-30 Hong T. Bui , Christoph Wolf , Yu Wang , Masahiro Haze , Arzhang Ardavan , Andreas J. Heinrich , Soo-hyon Phark

We consider a quantum dot attached to leads in the Coulomb blockade regime which has a spin 1/2 ground state. We show that by applying an ESR field to the dot-spin the stationary current in the sequential tunneling regime exhibits a…

Mesoscale and Nanoscale Physics · Physics 2016-08-31 Hans-Andreas Engel , Daniel Loss

Thermal spike model (TSM) is presently a widely accepted mechanism of swift heavy ion (SHI) - matter interaction. It provides explanation to various SHI induced effects including mixing across interfaces. The model involves electron-phonon…

Materials Science · Physics 2019-09-04 Paramita Patra , S. A. Khan , M. Bala , D. K. Avasthi , S. K. Srivastava

We present a comparative study of high frequency dynamics and low frequency noise in elliptical magnetic tunnel junctions with lateral dimensions under 100 nm presenting current-switching phenomena. The analysis of the high frequency…

Mesoscale and Nanoscale Physics · Physics 2015-08-07 Juan Pedro Cascales , David Herranz , Ursula Ebels , Jordan Katine , Farkhad G. Aliev

A distinguishing feature of spin accumulation in ferromagnet-semiconductor devices is precession of the non-equilibrium spin population of the semiconductor in a magnetic field. This is the basis for detection techniques such as the Hanle…

As predicted by Slonczewski and Berger, the possibility of exciting microwave oscillations in a nanomagnet by a spin-polarized current has been recently demonstrated. This observation opens very important perspectives of applications in RF…

Materials Science · Physics 2007-05-23 K. J. Lee , A. Deac , O. Redon , J. P. Nozieres , B. Dieny
‹ Prev 1 8 9 10 Next ›