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Ultra-sensitive measurement of the magneto-optical rotation, due to interaction of linearly-polarized light passing through room-temperature Rb 85 atoms, in response to change in longitudinal magnetic field (\delta B_z ) is demonstrated…

Instrumentation and Detectors · Physics 2019-04-04 T. J. Vineeth Francis , Rashmi Ranjan Suna , P. K. Madhu , Nirmal K. Viswanathan , G. Rajalakshmi

We report on a search for coherent elastic neutrino--nucleus scattering (CE$\nu$NS) using cryogenic sapphire (Al$_2$O$_3$) detectors deployed at the Mitchell Institute Neutrino Experiment at Reactor (MINER), located near the…

A technique to levitate and measure the three-dimensional position of micrometer-sized dielectric spheres with heterodyne detection is presented. The two radial degrees of freedom are measured by interfering light transmitted through the…

Instrumentation and Detectors · Physics 2018-02-07 Alexander D. Rider , Charles P. Blakemore , Giorgio Gratta , David C. Moore

We describe one of the largest radio-frequency RF atomic magnetometers presently operating. A total atomic volume of 128 $\mathrm{cm^3}$, with correspondingly large number of $^{87}$Rb atoms, can reduce atom noise. A total of 44 passes of…

Nowadays microfabrication techniques originating from micro-electronics enable to create mechanical objects of micron-size. The field of Micro-Electro-Mechanical devices (MEMS) is continuously expanding, with an amazingly broad range of…

Mesoscale and Nanoscale Physics · Physics 2018-02-26 Eddy Collin , Laure Filleau , Thierry Fournier , Yuriy M. Bunkov , Henri Godfrin

We present $^{77}$Se-NMR measurements on FeSe$_{1-x}$S$_x$ samples with sulfur content $x=0,9,15$ and $29\%$. Twinned nematic domains are observed in the NMR spectrum for all samples except $x=29\%$. The NMR spin-lattice relaxation rate…

Superconductivity · Physics 2018-08-01 P. Wiecki , K. Rana , A. E. Böhmer , Y. Lee , S. L. Bud'ko , P. C. Canfield , Y. Furukawa

We report the first measurement of 1/f type noise associated with electronic spin transport, using single layer graphene as a prototypical material with a large and tunable Hooge parameter. We identify the presence of two contributions to…

Mesoscale and Nanoscale Physics · Physics 2017-02-09 S. Omar , M. H. D. Guimarães , A. Kaverzin , B. J. van Wees , I. J. Vera-Marun

We have demonstrated a remote magnetometer based on sodium atoms in the Earth's mesosphere, at a 106-kilometer distance from our instrument. A 1.33-watt laser illuminated the atoms, and the magnetic field was inferred from back-scattered…

Instrumentation and Methods for Astrophysics · Physics 2017-02-17 Thomas J. Kane , Paul D. Hillman , Craig A. Denman , Michael Hart , R. Phillip Scott , Michael E. Purucker , Stephen J. Potashnik

Under negative feedback, the quality factor Q of a radio-frequency magnetometer can be decreased by more than two orders of magnitude, so that any initial perturbation of the polarized spin system can be rapidly damped, preparing the…

Atomic Physics · Physics 2015-06-05 Orang Alem , Karen L. Sauer , Mike V. Romalis

We present an experimental and theoretical study of a scalar atomic magnetometer using an oscillating field-driven Zeeman resonance in a high-density optically-pumped potassium vapor. We describe an experimental implementation of an atomic…

Atomic and Molecular Clusters · Physics 2013-05-29 S. J. Smullin , I. M. Savukov , G. Vasilakis , R. K. Ghosh , M. V. Romalis

A simple model is proposed to calculate resistivity, magnetoresistance, and noise spectrum in non-metallic phase-separated manganites containing small metallic droplets (magnetic polarons). The system is taken to be far from the percolation…

Strongly Correlated Electrons · Physics 2009-10-31 A. L. Rakhmanov , K. I. Kugel , Ya. M. Blanter , M. Yu. Kagan

The magnetic structure of the heavy fermion antiferromagnet CePt$_2$In$_7$ is determined using neutron diffraction. We find a magnetic wave vector $\mathbf{q}_M = (1/2,1/2,1/2)$, which is temperature independent up to $T_N =$ 5.5 K. A…

Strongly Correlated Electrons · Physics 2017-04-06 M. Raba , E. Ressouche , N. Qureshi , C. V. Colin , V. Nassif , S. Ota , Y. Hirose , R. Settai , P. Rodière , I. Sheikin

A new configuration for observation of magneto-optical subnatural-linewidth resonances of electromagnetically induced absorption (EIA) in alkali vapor has been verified experimentally. The configuration includes using two…

CeNiSn is a Kondo semimetal where a gap opens at low temperatures due to hybridization between 4$f$ and conduction electrons, but a full insulating state fails to develop. Upon the insertion of hydrogen, long range magnetic order is…

Strongly Correlated Electrons · Physics 2024-03-15 X. Y. Zheng , D. T. Adroja , B. Chevalier , Z. Y. Shan , A. D. Hillier , H. Q. Yuan , M. Smidman

The Sagnac Interferometer has historically been used for detecting non-reciprocal phenomena, such as rotation. We demonstrate an apparatus in which this technique is employed for high resolution measurements of the Magneto-Optical Polar…

Optics · Physics 2015-06-19 Alexander Fried , Martin Fejer , Aharon Kapitulnik

We use a Sagnac interferometer to measure the dispersive and absorptive properties of room temperature Rubidium vapor on the D_2 line at 780.2 nm. We apply a pump beam such that the resulting Lambda system exhibits Electromagnetically…

Atomic Physics · Physics 2009-11-11 Graham T. Purves , Charles S. Adams , Ifan G. Hughes

We discuss the nuclear magnetic relaxation rate and the superfluid density with the use of the effective five-band model by Kuroki et al. [Phys. Rev. Lett. 101, 087004 (2008)] in Fe-based superconductors. We show that a fully-gapped…

Levitated particle systems have gained significant attention as a rapidly advancing platform for precision sensing, offering low-loss, highly isolated environments by eliminating mechanical contact and associated noise. Current…

Instrumentation and Detectors · Physics 2025-05-01 Wei Ji , Changhao Xu , Guofeng Qu , Dmitry Budker

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…

Mesoscale and Nanoscale Physics · Physics 2021-06-16 Tahmid Kaisar , Md Mahadi Rajib , Hatem ElBidweihy , Mladen Barbic , Jayasimha Atulasimha

Magnetic nanoparticle based hyperthermia emerged as a potential tool for treating malignant tumours. The efficiency of the method relies on the knowledge of magnetic properties of the samples; in particular, knowledge of the frequency…

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