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The spatially averaged density of states, <N(0)>, of an unconventional d-wave superconductor is magnetic field dependent, proportional to $H^{1/2}$, owing to the Doppler shift of quasiparticle excitations in a background of vortex…

Superconductivity · Physics 2012-05-14 Sangwon Oh , A. M. Mounce , W. P. Halperin , C. L. Zhang , Pengcheng Dai , A. P. Reyes , P. L. Kuhns

We report on measurements of the dynamics of the collective spin length (total magnetization) and spin populations in an almost unit filled lattice system comprising about 10^4 spin S=3 chromium atoms, under the effect of dipolar…

Ballistic spin resonance was experimentally observed in a quasi-one-dimensional wire by Frolov et al. [Nature (London) 458, 868 (2009)]. The spin resonance was generated by a combination of an external static magnetic field and the…

Mesoscale and Nanoscale Physics · Physics 2014-04-01 Marco O. Hachiya , Gonzalo Usaj , J. Carlos Egues

We study the generation of non-equilibrium spin currents in systems with spatially-inhomogeneous magnetic potentials. For sufficiently high current densities, the spin polarization can be transported over distances significantly exceeding…

Condensed Matter · Physics 2009-11-07 Ivar Martin

We investigate the effectiveness of the Inverse Laplace Transform (ILT) analysis method to extract the distribution of relaxation rates from nuclear magnetic resonance data with stretched exponential relaxation. Stretched-relaxation is a…

Strongly Correlated Electrons · Physics 2021-09-10 H. Choi , I. Vinograd , C. Chaffey , N. J. Curro

We report predominantly zero field muon spin relaxation measurements in a series of Ca-doped LaMnO_3 compounds which includes the colossal magnetoresistive manganites. Our principal result is a systematic study of the spin-lattice…

Strongly Correlated Electrons · Physics 2009-10-31 R. H. Heffner , J. E. Sonier , D. E. MacLaughlin , G. J. Nieuwenhuys , G. M. Luke , Y. J. Uemura , S-W. Cheong , G. Balakrishnan

We demonstrate a quasi ballistic switching of the magnetization in a microscopic mag-neto resistive memory cell. By means of time resolved magneto transport we follow the large angle precession of the free layer magnetization of a spin…

Mesoscale and Nanoscale Physics · Physics 2009-11-07 H. W. Schumacher , C. Chappert , R. C. Sousa , P. P. Freitas , J. Miltat

The nuclear-spin-relaxation rate 1/T_1 has been measured in a bilayer electron system at and around total Landau level filling factor nu =1. The measured 1/T_1, which probes electron spin fluctuations, is found to increase gradually from…

Mesoscale and Nanoscale Physics · Physics 2009-11-10 N. Kumada , K. Muraki , K. Hashimoto , Y. Hirayama

Complementary $^{77}$Se nuclear magnetic resonance (NMR) and electrical transport have been used to correlate the spin density dynamics with the subphases of the field-induced spin density wave (FISDW) ground state in \tmt. We find that the…

Strongly Correlated Electrons · Physics 2009-11-13 L. L. Lumata , J. S. Brooks , P. L. Kuhns , A. P. Reyes , S. E. Brown , H. B. Cui , R. C. Haddon

Head motion is an omnipresent confounder of magnetic resonance image (MRI) analyses as it systematically affects morphometric measurements, even when visual quality control is performed. In order to estimate subtle head motion, that remains…

Image and Video Processing · Electrical Eng. & Systems 2026-04-03 Clemens Pollak , David Kügler , Martin Reuter

To understand the non-exponential relaxation associated with solvation dynamics in the ionic liquid 1-ethyl-3-methylimidazolium hexafluorophosphate, we study power spectra of the fluctuating Franck-Condon energy gap of a diatomic probe…

Statistical Mechanics · Physics 2009-11-13 Daun Jeong , M. Y. Choi , YounJoon Jung , Hyung J. Kim

We investigate transition rates between different spin configurations for $S \ge 1$ spins weakly coupled to a $d$-dimensional phonon bath. This study is motivated by understanding observed magnetization relaxation as a function of…

Materials Science · Physics 2009-11-13 Kyungwha Park

The coupled spin and valley degrees of freedom in transition metal dichalcogenides (TMDs) are considered a promising platform for information processing. Here, we use a TMD heterostructure ${\text{MoS}_{2}-\text{MoSe}_{2}}$ to study optical…

We study relaxation of a spin in magnetic resonance force microscopy (MRFM) experiments. We evaluate the relaxation rate for the spin caused by high-frequency mechanical noise of the cantilever under the conditions of adiabatic spin…

Mesoscale and Nanoscale Physics · Physics 2009-11-07 D. Mozyrsky , I. Martin , D. Pelekhov , P. C. Hammel

Motivated by the recent experiments that reported signatures of many-body localization of ultracold atoms in optical lattices [M. Schreiber {\it et al.}, Science {\bf 349}, 842 (2015)], we study dynamics of highly excited states in the…

Strongly Correlated Electrons · Physics 2019-03-13 Ivan Protopopov , Dmitry Abanin

We predict "intrinsic" spin relaxation times ($T_{1}$) of graphite due to spin-orbit-phonon interaction, i.e., the combination of spin-orbit coupling and electron-phonon interaction, using our developed first-principles density-matrix…

Computational Physics · Physics 2024-08-23 Junqing Xu

When spin relaxation is governed by spontaneous emission of a photon into the resonator used for signal detection (the Purcell effect), the relaxation time $T_1$ depends on the spin-resonator frequency detuning $\delta$ and coupling…

Spin relaxation in a quantum Hall ferromagnet, where filling is $\nu=1, 1/3, 1/5,...$, can be considered in terms of spin wave annihilation/creation processes. Hyperfine coupling with the nuclei of the GaAs matrix provides spin…

Strongly Correlated Electrons · Physics 2013-04-30 S. Dickmann , T. Ziman

Terahertz (THz) field pulses can now be applied in Scanning Tunnelling Microscopy (THz-STM) junction experiments to study time resolved dynamics. The relatively slow pulse compared to the typical electronic time-scale calls for…

Mesoscale and Nanoscale Physics · Physics 2023-08-24 Jakob Kjærulff Svaneborg , Aleksander Bach Lorentzen , Fei Gao , Antti-Pekka Jauho , Mads Brandbyge

Recently, it has been shown that spin nematic (quadrupolar) or higher multipolar correlation functions exhibit a quasi long-range order in the wide region of the field-induced Tomonaga-Luttinger-liquid (TLL) phase in spin-1/2 zigzag chains.…

Strongly Correlated Electrons · Physics 2009-02-17 Masahiro Sato , Tsutomu Momoi , Akira Furusaki
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