English
Related papers

Related papers: Generating Unexpected Spin Echoes in Dipolar Solid…

200 papers

Nonreciprocal charge transport in solids, where resistance is different between rightward and leftward currents, is a key function of rectifying devices in the modern electronics, as exemplified by $p$-$n$ semiconductor junctions. Recently,…

Strongly Correlated Electrons · Physics 2025-01-14 M. Kondo , M. Kimata , M. Ochi , T. Kaneko , K. Kuroki , K. Sudo , S. Sakaguchi , H. Murakawa , N. Hanasaki , H. Sakai

There is growing interest in bismuth-doped silicon (Si:Bi) as an alternative to the well-studied proposals for silicon based quantum information processing (QIP) using phosphorus-doped silicon (Si:P). We focus here on the implications of…

Quantum Physics · Physics 2012-07-05 M. H. Mohammady , G. W. Morley , A. Nazir , T. S. Monteiro

We describe how the spin coherence time of a localized electron spin in solids, i.e. a solid state spin qubit, can be prolonged by applying designed electron spin resonance pulse sequences. In particular, the spin echo decay due to the…

Mesoscale and Nanoscale Physics · Physics 2011-03-14 W. M. Witzel , S. Das Sarma

Dipolar interaction between the magnetic moments of electrons is studied as a source for electron spin decay in quantum dots or arrays of quantum dots. This magnetic interaction will govern spin decay, after other sources, such as the…

Mesoscale and Nanoscale Physics · Physics 2009-11-11 Wolfgang Häusler , Peter Hänggi

Properties of single-pulse and two-pulse echoes and their secondary echo signals as well as the role of reversible relaxation in the observed decays of echo signals at the multipulse excitation mode in a number of multidomain magnetic…

Materials Science · Physics 2007-05-23 A. Akhalkatsi , T. Gegechkori , G. Katalandze , G. Mamniashvili , Z. Shermadini

The centrosymmetric materials with hidden spin polarization are considered to be the promising candidates for realization of energy efficient spintronics systems and devices. However, the control of hidden spin polarization and resulting…

Mesoscale and Nanoscale Physics · Physics 2021-09-29 Paul C. Lou , W. P. Beyermann , Sandeep Kumar

Nuclear magnetic resonance (NMR) and transport measurements have been performed at high magnetic fields and low temperatures in a series of $n$-type Bi$_{2}$Se$_{3}$ crystals. In low density samples, a complete spin polarization of the…

In a thin strip of a two-dimensional semiconductor electronic system, spin-orbit coupling may be induced near both edges of the strip due to the substantial spatial variation of the confining potential in the boundary regions. In this paper…

Mesoscale and Nanoscale Physics · Physics 2009-11-11 Yongjin Jiang , Liangbin Hu

$^{1}$H-NMR spin-echo measurements of the spin-echo decay $M(2\tau)$ with a decay rate 1/$T_{2}$ and the frequency shift $\Delta\nu/\nu_{0}$ under applied magnetic field $\mathbf{B}$$_{0}$ = 9 T along the a-axis over a temperature range…

Strongly Correlated Electrons · Physics 2009-11-11 Guoqing Wu , P. Ranin , G. Gaidos , W. G. Clark , S. E. Brown , L. Balicas , L. K. Montgomery

In a search for periodic variation in the arrival times of pulses from 151 young, energetic pulsars, we have identified seven cases of modulation consistent with one or two harmonics of a single fundamental with time-scale 0.5-1.5 yr. We…

Solar and Stellar Astrophysics · Physics 2015-11-19 Matthew Kerr , George Hobbs , Simon Johnston , Ryan Shannon

Unusually large spontaneous and piezoelectric fields in the III-V nitrides have led to the making of an entirely new class of two-dimensional electron gas. Fluctuation from a perfectly periodic binary structure in highly polar semiconductor…

Materials Science · Physics 2009-10-31 Debdeep Jena , Arthur. C. Gossard , Umesh. K. Mishra

Anisotropic electron-phonon interaction is shown to lead to the anisotropic polaron effect. The resulting anisotropy of the polaron band is an exponential function of the electron-phonon coupling and might be as big as $10^3$. This also…

Strongly Correlated Electrons · Physics 2009-10-31 P E Kornilovitch

Quasiparticles describe collective excitations in many-body systems, and their symmetry classification is of fundamental importance because they govern physical processes on various timescales, e.g., excited states, transport phenomena, and…

Strongly Correlated Electrons · Physics 2026-05-29 Hiroki Ueda , Abhishek Nag , Carl P. Romao , Mirian García-Fernández , Ke-Jin Zhou , Urs Staub

Periodic modulations are seen in normal period pulsars ($P >$ 0.1 sec) over timescales ranging from a few seconds to several minutes. Such modulations have usually been associated with the phenomenon of subpulse drifting. A number of recent…

High Energy Astrophysical Phenomena · Physics 2020-02-12 Rahul Basu , Dipanjan Mitra , Giorgi I. Melikidze

We report on an analysis of the drifting subpulses of PSR B0320+39 that indicates a sudden step of ~180 degrees in subpulse phase near the centre of the pulse profile. The phase step, in combination with the attenuation of the periodic…

Astrophysics · Physics 2011-05-23 R. T. Edwards , B. W. Stappers , A. G. J. van Leeuwen

Singlet fission, a process that splits a singlet exciton into a biexciton, has promise in quantum information. We report time-resolved electron paramagnetic resonance measurements on a molecule, TIPS-BP1$'$, designed to exhibit strongly…

Chemical Physics · Physics 2022-02-22 Ryan D. Dill , Kori E. Smyser , Niels H. Damrauer , Joel D. Eaves

Statistical mechanics underlies our understanding of macroscopic quantum systems. It is based on the assumption that out-of-equilibrium systems rapidly approach their equilibrium states, forgetting any information about their microscopic…

Multiple quantum (MQ) NMR with a dipolar ordered initial state opens new possibilities for the exploration of many-spin entanglement. In this paper, we investigate many-spin entanglement in a gas of spin-carrying molecules (atoms) in…

Quantum Physics · Physics 2021-02-03 Ilia D. Lazarev , Edward. B. Feldman

Recently, it has been discovered that in contrast to expectations the low-temperature dielectric properties of some multi-component glasses depend strongly on magnetic fields. In particular, the low-frequency dielectric susceptibility and…

Disordered Systems and Neural Networks · Physics 2009-11-07 C. Enss , S. Ludwig

Analysis of plasma acceleration in pulsars with positive corotational charge density has shown that any element of area on the polar cap is bi-stable: it can be in phases either of pure proton emission or of mixed ions and protons (the ion…

High Energy Astrophysical Phenomena · Physics 2015-06-18 P. B. Jones