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A light beam can carry both spin angular momentum (SAM) and orbital angular momentum (OAM). SAM is commonly evidenced by circular dichroism (CD) experiments {\em i. e.} differential absorption of left and right-handed circularly polarized…

We have developed a methodology for analyzing multi-frequency oscillating magnetic fields using neutron spin interferometry. A theoretical formulation was derived of the contrast and the phase of the interference pattern for an input…

Instrumentation and Detectors · Physics 2026-05-28 Ryuto Fujitani , Masahiro Hino , Takashi Higuchi

The precise derivation of physical quantities like temperature or pressure at arbitrary locations is useful in numerous contexts, e.g. medical procedures or industrial process engineering. The novel sensor technology of magneto-mechanical…

Applied Physics · Physics 2025-09-01 Jonas Faltinath , Fabian Mohn , Fynn Foerger , Martin Möddel , Tobias Knopp

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…

Mesoscale and Nanoscale Physics · Physics 2023-03-08 Takuto Ishikawa , Mamoru Matsuo , Takeo Kato

By combining two independent approaches, inelastic neutron scattering measurements and density functional theory calculations, we study the spin-waves in the high-temperature collinear antiferromagnetic phase (AFM2) of Mn$_5$Si$_3$. We…

Mesoscale and Nanoscale Physics · Physics 2021-01-13 F. J. dos Santos , N. Biniskos , S. Raymond , K. Schmalzl , M. dos Santos Dias , P. Steffens , J. Persson , S. Blügel , S. Lounis , T. Brückel

Spin-torque effects in antiferromagnetic (AFM) materials are of great interest due to the possible applications as high-speed spintronic devices. In the present paper we analyze the statistical properties of the current-driven AFM…

Mesoscale and Nanoscale Physics · Physics 2013-01-01 Helen Gomonay , Vadim Loktev

Mechanical resonators operating in the megahertz range have become a versatile platform for fundamental and applied quantum research. Their exceptional properties, such as low mass and high quality factor, make them also appealing for force…

Mesoscale and Nanoscale Physics · Physics 2026-04-20 Diego A. Visani , Letizia Catalini , Christian L. Degen , Alexander Eichler , Javier del Pino

We report on the change of the characteristic times of the random telegraph signal (RTS) in a MOSFET operated under microwave irradiation up to 40 GHz as the microwave field power is raised. The effect is explained by considering the time…

Other Condensed Matter · Physics 2009-11-11 Enrico Prati , Marco Fanciulli , Alessandro Calderoni , Giorgio Ferrari , Marco Sampietro

Quantum sensing based on nitrogen-vacancy (NV) centers in diamond has been developed as a powerful tool for microscopic magnetic resonance. However, the reported sensor-to-sample distance is limited within tens of nanometers because the…

This paper proposes a new approach to diagnose broken rotor bar failure in a line start-permanent magnet synchronous motor (LS-PMSM) using random forests. The transient current signal during the motor startup was acquired from a healthy…

Spin Hall magnetoresistance (SMR), the variation in resistance in a heavy metal (HM) with the magnetization orientation of an adjacent ferromagnet (FM), has been extensively studied as a powerful tool for probing surface magnetic moments in…

Mesoscale and Nanoscale Physics · Physics 2025-01-03 Ping Tang

Tapping mode atomic force microscopy is a standard technique for inspection and analysis at the nanometer scale. The understanding of the non-linear dynamics of the system due to the tip sample interaction is an important prerequisite for a…

Instrumentation and Detectors · Physics 2007-05-23 Robert W. Stark

Quantum spin fluctuations provide a unique way to study spin dynamics without system perturbation. Here we put forward an optical resonance shift spin noise spectroscopy as a powerful tool to measure the spin noise of various systems from…

Mesoscale and Nanoscale Physics · Physics 2020-07-01 D. S. Smirnov , K. V. Kavokin

X-ray magnetic circular dichroism (XMCD) is generally not observed for antiferromagnetic (AFM) states because XMCD signals from the antiparallelly coupled spins cancel each other. In this letter, we theoretically show the presence of an…

Strongly Correlated Electrons · Physics 2021-04-21 N. Sasabe , M. Kimata , T. Nakamura

We solve Schr\"odinger equation describing a tunneling macrospin coupled to a torsional oscillator. Energy spectrum is studied for various quantum regimes. Magnetic susceptibility and noise spectrum are computed. We show that entanglement…

Mesoscale and Nanoscale Physics · Physics 2012-01-10 D. A. Garanin , E. M. Chudnovsky

The measurement of the spin frequency in accreting millisecond X-ray pulsars (AMXPs) is strongly affected by the presence of an unmodeled component in the pulse arrival times called 'timing noise'. We show that it is possible to attribute…

High Energy Astrophysical Phenomena · Physics 2011-02-11 Alessandro Patruno , Rudy Wijnands , Michiel van der Klis

Neutron diffraction, magnetization and muon spin relaxation measurements, supplemented by density functional theory (DFT) calculations are employed to unravel temperature-driven magnetization reversal (MR) in inverse spinel Co$_2$VO$_4$.…

We present a numerical macrospin model for harmonic voltage detection in multilayer spintronic devices. The core of the computational backend is based on the Landau-Lifshitz-Gilbert-Slonczewski equation, which combines high performance with…

We study the dnamics of small magnetic cantilevers, either made from Si covered by a magnetic film or entirely ferromagnetic ones. The magnetomechanical torques are found to cause line splittings in ferromagnetic resonance spectra and…

Mesoscale and Nanoscale Physics · Physics 2009-11-11 Alexey A. Kovalev , Gerrit E. W. Bauer , Arne Brataas

Spin wave modes confined in a ferromagnetic film by the spatially inhomogeneous magnetic field generated by a scanned micromagnetic tip of a ferromagnetic resonance force microscope (FMRFM) enable microscopic imaging of the internal fields…