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Optically addressable spin defects in wide-bandage semiconductors as promising systems for quantum information and sensing applications have attracted more and more attention recently. Spin defects in two-dimensional materials are supposed…

Spin injection from a half-metallic electrode in the presence of thermal spin disorder is analyzed using a combination of random matrix theory, spin-diffusion theory, and explicit simulations for the tight-binding s-d model. It is shown…

Materials Science · Physics 2012-12-05 K. D. Belashchenko , J. K. Glasbrenner , A. L. Wysocki

Spin defects in diamond are promising platforms for quantum sensing. The longest electron spin relaxation times ($T_1$) at room temperature for solid-state defects are observed in nitrogen vacancy centers in diamond, which can reach 6.67…

Spin defects in silicon carbide have exceptional electron spin coherence with a near-infrared spin-photon interface in a material amenable to modern semiconductor fabrication. Leveraging these advantages, we successfully integrate highly…

We demonstrate that silicon carbide (SiC) with natural isotope abundance can preserve a coherent spin superposition in silicon vacancies over unexpectedly long time approaching 0.1 seconds. The spin-locked subspace with drastically reduced…

Materials Science · Physics 2017-04-12 D. Simin , H. Kraus , A. Sperlich , T. Ohshima , G. V. Astakhov , V. Dyakonov

We find that the temperature dependence of the drag resistivity ($\rho_{D}$) between two dilute two-dimensional hole systems exhibits an unusual dependence upon spin polarization. Near the apparent metal-insulator transition, the…

Mesoscale and Nanoscale Physics · Physics 2009-11-10 R. Pillarisetty , H. Noh , E. Tutuc , E. P. De Poortere , D. C. Tsui , M. Shayegan

We have measured the temperature dependence and magnitude of the superfluid density $\rho_{\rm s}(T)$ via the magnetic field penetration depth $\lambda(T)$ in PuCoGa$_5$ (nominal critical temperature $T_{c0} = 18.5$ K) using the muon spin…

We study an interacting electronic system exhibiting a spin nematic instability. Using a phenomenological form for the spin fluctuation spectrum near the spin-density-wave (SDW) phase, we compute the spin nematic susceptibility in energy…

Strongly Correlated Electrons · Physics 2015-08-04 Hiroyuki Yamase , Roland Zeyher

This paper presents the temperature dependence of the static spin susceptibility at $\mathbf{q} = (\pi, \pi)$ and $\mathbf{q} = (\pi, 0)$ in a Mott-proximate cuprate model with an antinodal pseudogap -- a model system for high-temperature…

Strongly Correlated Electrons · Physics 2025-11-06 Keishichiro Tanaka

Using a Hamiltonian formulation of Composite Fermions that I recently developed with R. Shankar, I compute the dependence of the spin polarization on the temperature for the translationally invariant fractional quantum Hall states at…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 Ganpathy Murthy

We report on the 29Si nuclear spin decoherence time at room temperature for a pure (99.99999%, 7N) and carrier-less (p-type, doping level of 10^15cm-3) silicon in which 29Si nuclei are naturally abundant (4.7%). Despite the experimental…

Materials Science · Physics 2007-05-23 Shinji Watanabe , Susumu Sasaki

We demonstrate dispersive readout of the spin of an ensemble of Nitrogen-Vacancy centers in a high-quality dielectric microwave resonator at room temperature. The spin state is inferred from the reflection phase of a microwave signal…

Quantum Physics · Physics 2021-06-24 J. Ebel , T. Joas , M. Schalk , A. Angerer , J. Majer , F. Reinhard

Vanadium in silicon carbide (SiC) is emerging as an important candidate system for quantum technology due to its optical transitions in the telecom wavelength range. However, several key characteristics of this defect family including their…

In the present work, we have reported the temperature dependent thermopower ($\alpha$) behavior of La$_{0.75}$Ba$_{0.25}$CoO$_{3}$ compound in the temperature range 300-600 K. Using the Heikes formula, the estimated value of $\alpha$…

Strongly Correlated Electrons · Physics 2017-04-25 Saurabh Singh , Devendra Kumar , Sudhir K. Pandey

Local magnetic properties around a nonmagnetic impurity are investigated in high-Tc cuprate superconductors. We consider a model two-dimensional d-wave superconductor with strong antiferromagnetic (AF) spin fluctuations and calculate the…

Superconductivity · Physics 2009-11-07 Y. Ohashi

The investigation of temperature dependence of damping and period of vibrations of HTSC superconductive cylinder of Bi-Pb-Sr-Ca-Cu-O system suspended by a thin elastic thread and performing axial-torsional vibrations in a magnetic field at…

Superconductivity · Physics 2008-10-31 J. G. Chigvinadze , J. V. Acrivos , S. M. Ashimov , D. D. Gulamova , T. V. Machaidze , D. Uskenbaev

The temperature and magnetic field dependence of lattice and carrier excitations in MnSi is studied in detail using inelastic light scattering. The pure symmetry components of the electronic response are derived from the polarization…

Strongly Correlated Electrons · Physics 2014-07-23 H. -M. Eiter , P. Jaschke , R. Hackl , A. Bauer , M. Gangl , C. Pfleiderer

The intrinsic flux noise observed in superconducting quantum interference devices (SQUIDs) is thought to be due to the fluctuation of electron spin impurities, but the frequency and temperature dependence observed in experiments do not…

Superconductivity · Physics 2014-01-10 T. Lanting , M. H. Amin , A. J. Berkley , C. Rich , S. -F. Chen , S. LaForest , Rogerio de Sousa

We present an experimental study of the longitudinal electron-spin relaxation time (T1) of negatively charged nitrogen-vacancy (NV) ensembles in diamond. T1 was studied as a function of temperature from 5 to 475 K and magnetic field from 0…

Materials Science · Physics 2015-06-03 A. Jarmola , V. M. Acosta , K. Jensen , S. Chemerisov , D. Budker

The temperature dependence of 2D magnetoresistance in an applied in-plane magnetic field is theoretically considered for electrons in Si MOSFETs within the screening theory for long-range charged impurity scattering limited carrier…

Disordered Systems and Neural Networks · Physics 2007-10-09 S. Das Sarma , E. H. Hwang
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