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We experimentally investigate and utilize electrothermal feedback in a microwave nanobolometer based on a normal-metal ($\mbox{Au}_{x}\mbox{Pd}_{1-x}$) nanowire with proximity-induced superconductivity. The feedback couples the temperature…

Mesoscale and Nanoscale Physics · Physics 2016-07-21 J. Govenius , R. E. Lake , K. Y. Tan , M. Möttönen

We report a method for accelerated nanoscale nuclear magnetic resonance imaging by detecting several signals in parallel. Our technique relies on phase multiplexing, where the signals from different nuclear spin ensembles are encoded in the…

Mesoscale and Nanoscale Physics · Physics 2015-08-11 B. A. Moores , A. Eichler , Y. Tao , H. Takahashi , P. Navaretti , C. L. Degen

The main idea of magnetic hyperthermia is to increase locally the temperature of the human body by means of injected superparamagnetic nanoparticles. They absorb energy from a time-dependent external magnetic field and transfer it into…

Soft Condensed Matter · Physics 2021-09-27 Zs. Iszaly , I. G. Marian , I. A. Szabo , A. Trombettoni , I. Nandori

Detection of nano-mechanical displacement by transport techniques has reached high level of sensitivity and versatility. In order to detect the amplitude of oscillation of nano-mechanical oscillator a widely used technique consists to…

Mesoscale and Nanoscale Physics · Physics 2017-01-18 Yue Wang , Fabio Pistolesi

Nano-patterning has been shown to be a powerful tool for manipulating the vibrational modes of elastic structures, with applications such as optical-mechanical mode coupling. Inspired by these recent developments in phononic band…

Superconductivity · Physics 2025-07-23 Masoud Mohammadi-Arzanagh , Andrey Grankin , Victor Galitski , Mohammad Hafezi

Features of thermally-activated magnetization switching have been studied in a FeCoB nanomagnet using the N\'eel model. A method of a high-precision measurement of the coercive field, retention time, {\Delta} and the size of the switching…

Mesoscale and Nanoscale Physics · Physics 2020-02-05 Vadym Zayets

We consider a possible route to ground state cooling of a levitated nanoparticle, magnetically trapped by a strong permanent magnet, using a combination of measurement and feedback. The trap frequency of this system is much lower than those…

Quantum Physics · Physics 2019-12-18 L. S. Walker , G. R. M. Robb , A. J. Daley

Nickel nanosheets of thickness 0.6 nm were grown within the nanochannels of Na-4 mica template. The specimens show magnetodielectric effect at room temperature with a change of dielectric constant as a function of magnetic field, the…

Mesoscale and Nanoscale Physics · Physics 2012-05-08 Sreemanta Mitra , Amrita Mandal , Anindya Datta , Sourish Banerjee , Dipankar Chakravorty

Scanning Thermal Microscopy (SThM) has become an important measurement tool for characterizing the thermal properties of materials at the nanometer scale. This technique requires a SThM probe that combines an Atomic Force Microscopy (AFM)…

Mesoscale and Nanoscale Physics · Physics 2024-05-01 R. Swami , G. Julie , S. Le-Denmat , G. Pernot , D. Singhal , J. Paterson , J. Maire , J. F. Motte , N. Paillet , H. Guillou , S. Gomes , O. Bourgeois

We demonstrate significant cooling of electrons in a nanostructure below 10 mK by demagnetisation of thin-film copper on a silicon chip. Our approach overcomes the typical bottleneck of weak electron-phonon scattering by coupling the…

Recently it was discovered that torsion modes of strained nanoribbons exhibit dissipation dilution, giving a route to enhanced torque sensing and quantum optomechanics experiments. As with all strained nanomechanical resonators, an…

Mesoscale and Nanoscale Physics · Physics 2025-06-04 Atkin D. Hyatt , Aman R. Agrawal , Christian M. Pluchar , Charles A. Condos , Dalziel J. Wilson

This article proposes a scheme for nitrogen-vacancy (NV) center magnetometry that combines the advantages of lock-in detection and pulse-type scheme. The optimal conditions, optimal sensitivity, and noise-suppression capability of the…

Applied Physics · Physics 2021-01-08 Jixing Zhang , Heng Yuan , Tianzheng Liu , Lixia Xu , Guodong Bian , Pengcheng Fan , Mingxin Li

In this paper, a hybrid quasi-static atomistic simulation method at finite temperature is developed, which combines the advantages of MD for thermal equilibrium and atomic-scale finite element method (AFEM) for efficient equilibration. Some…

Atomic Physics · Physics 2015-06-17 Ran Xu , Bin Liu

We demonstrate the quantitative measurement of the magnetization of individual magnetic nanoparticles (MNP) using a magnetic force microscope (MFM). The quantitative measurement is realized by calibration of the MFM signal using an MNP…

Mesoscale and Nanoscale Physics · Physics 2010-02-22 Kai-Felix Braun , Sibylle Sievers , Dietmar Eberbeck , Stefan Gustafsson , Eva Olsson , Hans Werner Schumacher , Uwe Siegner

Quantifying the temperature of microdevices is critical for probing nanoscale energy transport.Such quantification is often accomplished by integrating resistance thermometers into microdevices. However, such thermometers frequently become…

Mesoscale and Nanoscale Physics · Physics 2021-05-05 Amin Reihani , Shen Yan , Yuxuan Luan , Rohith Mittapally , Edgar Meyhofer , Pramod Reddy

We investigate the effect of (weak) dipolar interactions on the field behavior of the temperature at the maximum of the zero-field-cooled magnetization of a polydisperse assembly of nanoparticles. For this purpose, we extend the…

Statistical Mechanics · Physics 2009-11-11 M. Azeggagh , H. Kachkachi

New magnetometry techniques based on Nitrogen Vacancy (NV) defects in diamond have received much attention of late as a means to probe nanoscale magnetic environments. The sensitivity of a single NV magnetometer is primarily determined by…

Quantum Physics · Physics 2015-05-18 Liam T. Hall , Charles D. Hill , Jared H. Cole , Lloyd C. L. Hollenberg

As the ability to generate magnetic anisotropy in molecular materials continues to hit new milestones, concerted effort has shifted towards understanding, and potentially controlling, the mechanisms of magnetic relaxation across a large…

Chemical Physics · Physics 2019-07-16 Jeremy D. Hilgar , Aaron K. Butts , Jeffrey D. Rinehart

Magnetic-field and microwave-frequency modulated DNP experiments have been shown to yield improved enhancements over conventional DNP techniques, and even to shorten polarization build-up times. The resulting increase in signal-to-noise…

Instrumentation and Detectors · Physics 2015-12-23 Mallory L. Guy , Lihuang Zhu , Chandrasekhar Ramanathan

We explored the magnetic behavior of a common two-phase nanomagnetic system by Monte Carlo computer simulation of a modified Heisenberg model on a 3D complex lattice with single- and cluster-spins. The effect of exchange coupling between…

Materials Science · Physics 2007-05-23 Y. Z. Shao , W. R. Zhong , G. M. Lin , X. D. Hu