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Related papers: Single-Spin Relaxation in a Synthetic Spin-Orbit F…

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We report on surface and bulk spin density measurements of diamond, using ultra-sensitive magnetic force microscopy with magnetic field gradients up to 0.5 T/$\mu$m. At temperatures between 25 and 800 mK, we measure the shifts in the…

Mesoscale and Nanoscale Physics · Physics 2019-01-11 Martin de Wit , Gesa Welker , Marc de Voogd , Tjerk Oosterkamp

Numerical modelling of coherent spin relaxation in nanomagnets, formed by magnetic molecules of high spins, is accomplished. Such a coherent spin dynamics can be realized in the presence of a resonant electric circuit coupled to the magnet.…

Mesoscale and Nanoscale Physics · Physics 2009-11-13 V. I. Yukalov , V. K. Henner , P. V. Kharebov

The spin dynamics in [TbPc$_{2}$]$^{0}$ and [DyPc$_{2}$]$^{0}$ single molecule magnets have been investigated by means of muon and nuclear spin-lattice relaxation rate measurements. The correlation time for the spin fluctuations was found…

Mesoscale and Nanoscale Physics · Physics 2015-05-13 F. Branzoli , M. Filibian , P. Carretta , S. Klytaskaya , M. Ruben

Graphite has been intensively studied, yet its electron spins dynamics remains an unresolved problem even 70 years after the first experiments. The central quantities, the longitudinal ($T_1$) and transverse ($T_2$) relaxation times were…

Mesoscale and Nanoscale Physics · Physics 2023-05-26 B. G. Márkus , M. Gmitra , B. Dóra , G. Csősz , T. Fehér , P. Szirmai , B. Náfrádi , V. Zólyomi , L. Forró , J. Fabian , F. Simon

Using X-band pulsed electron spin resonance, we report the intrinsic spin-lattice ($T_1$) and phase coherence ($T_2$) relaxation times in molecular nanomagnets for the first time. In Cr$_7M$ heterometallic wheels, with $M$ = Ni and Mn,…

We measure the dissipation and frequency shift of a magnetically coupled cantilever in the vicinity of a silicon chip, down to $25$ mK. The dissipation and frequency shift originates from the interaction with the unpaired electrons,…

Mesoscale and Nanoscale Physics · Physics 2016-01-22 A. M. J. den Haan , J. J. T. Wagenaar , J. M. de Voogd , G. Koning , T. H. Oosterkamp

Electron spin relaxation induced by phonon-mediated s-d exchange interaction in a II-VI diluted magnetic semiconductor quantum dot is investigated theoretically. The electron-acoustic phonon interaction due to piezoelectric coupling and…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 W. Yang , K. Chang

We present full atomistic calculations of the spin-flip time (T$_{1}$) of electrons and holes mediated by acoustic phonons in self-assembled In$_{1-x}$Ga$_x$As/GaAs quantum dots at zero magnetic field. At low magnetic field, the first-order…

Materials Science · Physics 2015-05-20 Hai Wei , Ming Gong , G-C Guo , Lixin He

The temperature and field dependences of the site-selective nuclear spin relaxation time T_1 around vortices are studied comparatively both for s-wave and d-wave superconductors, based on the microscopic Bogoliubov-de Gennes theory.…

Superconductivity · Physics 2009-10-31 Mitsuaki Takigawa , Masanori Ichioka , Kazushige Machida

Interactions of electron spins with rotational degrees of freedom during collisions or with external fields are fundamental processes that limit the coherence time of spin gases. We experimentally study the decoherence of hot cesium spins…

Quantum Physics · Physics 2025-05-29 Mark Dikopoltsev , Avraham Berrebi , Uriel Levy , Or Katz

We report on the use of $^{69,71}$Ga nuclear magnetic resonance to probe spin dynamics in the rare-earth kagom\'{e} system Pr$_3$Ga$_5$SiO$_{14}$. We find that the spin-lattice relaxation rate $^{69}1/T_1$ exhibits a maximum around 30 K,…

Strongly Correlated Electrons · Physics 2009-09-29 L. L. Lumata , K. -Y. Choi , T. Besara , M. J. R. Hoch , H. D. Zhou , J. S. Brooks , P. L. Kuhns , A. P. Reyes , N. S. Dalal , C. R. Wiebe

An experimental technique for the indirect manipulation and detection of electron spins entangled in two-dimensional magnetoexcitons has been developed. The kinetics of the spin relaxation has been investigated. Photoexcited…

Strongly Correlated Electrons · Physics 2015-07-14 L. V. Kulik , A. V. Gorbunov , A. S. Zhuravlev , V. B. Timofeev , S. Dickmann , I. V. Kukushkin

We probe the relaxation dynamics of the full three-level spin system of near-surface nitrogen-vacancy (NV) centers in diamond to define a $T_{1}$ relaxation time that helps resolve the $T_{2} \leq 2T_{1}$ coherence limit of the NV's subset…

Mesoscale and Nanoscale Physics · Physics 2017-05-17 Bryan A. Myers , Amila Ariyaratne , Ania C. Bleszynski Jayich

We experimentally study the electronic spin transport in hBN encapsulated single layer graphene nonlocal spin valves. The use of top and bottom gates allows us to control the carrier density and the electric field independently. The spin…

Mesoscale and Nanoscale Physics · Physics 2014-08-27 M. H. D. Guimarães , P. J. Zomer , J. Ingla-Aynés , J. C. Brant , N. Tombros , B. J. van Wees

Semiconductor spin qubits based on spin-orbit states are responsive to electric field excitation allowing for practical, fast and potentially scalable qubit control. Spin-electric susceptibility, however, renders these qubits generally…

We report here the results of $^1$H NMR spin-lattice relaxation time (T$_1$) studies in Glycine phosphite which is a ferroelectric below 224 K. The experiments have been carried out in the temperature range from 200 K to 419 K and at two…

Materials Science · Physics 2015-06-24 R. Kannan , K. P. Ramesh , J. Ramakrishna

Based on a Monte Carlo method, we investigate the influence of transport conditions on the electron spin relaxation in GaAs. The decay of initial electron spin polarization is calculated as a function of distance under the presence of…

Mesoscale and Nanoscale Physics · Physics 2009-11-10 E. A. Barry , A. A. Kiselev , K. W. Kim

The nuclear spin-lattice relaxation rate 1/T_1_ is calculated for magnetic ring clusters by fully diagonalizing their microscopic spin Hamiltonians. Whether the nearest-neighbor exchange interaction J is ferromagnetic or antiferromagnetic,…

Strongly Correlated Electrons · Physics 2009-11-11 Shoji Yamamoto , Toshiya Hikihara

The long-time thermal relaxation of (TMTTF)$_2$Br, Sr$_{14}$Cu$_{24}$O$_{41}$ and Sr$_2$Ca$_{12}$Cu$_{24}$O$_{41}$ single crystals at temperatures below 1 K and magnetic field up to 10 T is investigated. The data allow us to determine the…

Materials Science · Physics 2016-10-25 S. Sahling , G. Remenyi , J. E. Lorenzo , P. Monceau , V. L. Katkov , V. A. Osipov

We study spin relaxation and diffusion in an electron-spin ensemble of nitrogen impurities in diamond at low temperature (0.25-1.2 K) and polarizing magnetic field (80-300 mT). Measurements exploit mode- and temperature-dependent coupling…

Mesoscale and Nanoscale Physics · Physics 2013-02-13 V. Ranjan , G. de Lange , R. Schutjens , T. Debelhoir , J. P. Groen , D. Szombati , D. J. Thoen , T. M. Klapwijk , R. Hanson , L. DiCarlo
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