Spin-wave dispersion in half-doped<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msub><mml:mi>La</mml:mi><mml:mrow><mml:mn>3</mml:mn><mml:mo>∕</mml:mo><mml:mn>2</mml:mn></mml:mrow></mml:msub><mml:msub><mml:mi>Sr</mml:mi><mml:mrow><mml:mn>1</mml:mn><mml:mo>∕</mml:mo><mml:mn>2</mml:mn></mml:mrow></mml:msub><mml:msub><mml:mi>NiO</mml:mi><mml:mn>4</mml:mn></mml:msub></mml:mrow></mml:math>

Yao, Dao‐Xin; Carlson, E. W.

doi:10.1103/physrevb.75.012414

Cited by 14 publications

(14 citation statements)

References 10 publications

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“…The large value obtained for the intrinsic SOC is surprising as it is an order of magnitude larger than the largest theoretical estimate [16] and up to 3 orders of magnitude larger than other results [14,25,26]). However, given that the experimental µ dependence of Γ s dictates the dominant role of the intrinsic coupling, L i yields necessarily a large value.…”

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confidence: 61%

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Electron spin dynamics and electron spin resonance in graphene

Dóra

Murányi

Simón

2010

EPL

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A theory of spin relaxation in graphene including intrinsic, Bychkov-Rashba, and ripple spinorbit coupling is presented. We find from spin relaxation data by Tombros et al. (Nature, 448 (2007) 571) that intrinsic spin-orbit coupling dominates over other contributions with a coupling constant of 3.7 meV. Although it is 1-3 orders of magnitude larger than those obtained from first principles, we show that comparable values are found for other honeycomb systems, MgB2 and LiC6; the latter is studied herein by electron spin resonance (ESR). We assess the feasibility of bulk electron spin resonance spectroscopy on graphene and identify experimental conditions where such experiments are realizable.

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confidence: 61%

“…Γ = 75 meV, that is independent of µ, was used for the calculated curves. First principles calculations of the intrinsic SOC scatter more than two orders of magnitude with values of 0.9 µeV [14,25,26]), 24 µeV [15], and 200 µeV [16]. Values for the BR SOC, L BR = κE, vary between κ = 10..36 µeV/(V/nm).…”

mentioning

confidence: 99%

Electron spin dynamics and electron spin resonance in graphene

Dóra

Murányi

Simón

2010

EPL

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“…However, recent studies have revealed that the intrinsic contribution can be dominant for AHE in metals when the σ xy is of the order of 10 3 (Ωcm) −1 and the conductivity σ xx is in the range of ∼ 10 4 −10 6 Ω −1 cm −1 [20]. This dominant contribution of intrinsic mechanism is confirmed by the detailed comparisons between the first-principles calculations [21,22,23] and experiments [24].…”

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confidence: 61%

Intrinsic Spin Hall Effect in Platinum: First-Principles Calculations

Guo

Murakami²,

Chen³

et al. 2008

Phys. Rev. Lett.

417

398

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Spin Hall effect (SHE) is studied with first-principles relativistic band calculations for platinum, which is one of the most important materials for metallic SHE and spintronics. We find that intrinsic spin Hall conductivity (SHC) is as large as approximately 2000(variant Planck's over 2 pi/e)(Omega cm)(-1) at low temperature and decreases down to approximately 200(variant Planck's over 2 pi/e)(Omega cm)(-1) at room temperature. It is due to the resonant contribution from the spin-orbit splitting of the doubly degenerated d bands at high-symmetry L and X points near the Fermi level. By modeling these near degeneracies by an effective Hamiltonian, we show that SHC has a peak near the Fermi energy and that the vertex correction due to impurity scattering vanishes. We therefore argue that the large SHE observed experimentally in platinum is of intrinsic nature.

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“…In III-V semiconductors, it is the large spin-orbit splitting of the valence band states [1] that enables efficient optical pumping of electron [2] or nuclear spins [3,4] and leads to a strong correlation between light helicity and electron-spin orientation [5]. In this context, one would argue that optical spin manipulation would be hindered in semiconducting single-wall carbon nanotubes (CNTs): Due to the weak spin-orbit splitting in graphene [6] and early experiments suggesting the presence of electron-hole symmetry [7], it had been assumed that SOI in CNTs would be small for both electrons and holes. In addition, the depolarization effect ensures that only electric fields linearly polarized along the CNT axis couple strongly to electrons and holes [8,9], ruling out the possibility of obtaining correlations between electron spin and photon polarization.…”

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confidence: 99%

All-Optical Manipulation of Electron Spins in Carbon-Nanotube Quantum Dots

Galland

İmamoğlu

2008

Phys. Rev. Lett.

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We demonstrate theoretically that it is possible to manipulate electron or hole spins all optically in semiconducting carbon nanotubes. The scheme that we propose is based on the spin-orbit interaction that was recently measured experimentally; we show that this interaction, together with an external magnetic field, can be used to achieve optical electron-spin state preparation with a fidelity exceeding 99%. Our results also imply that it is possible to implement coherent spin rotation and measurement using laser fields linearly polarized along the nanotube axis, as well as to convert spin qubits into time-bin photonic qubits. We expect that our findings will open up new avenues for exploring spin physics in one-dimensional systems.

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Spin-wave dispersion in half-dopedLa3∕2Sr1∕2NiO4

Cited by 14 publications

References 10 publications

Electron spin dynamics and electron spin resonance in graphene

Electron spin dynamics and electron spin resonance in graphene

Intrinsic Spin Hall Effect in Platinum: First-Principles Calculations

All-Optical Manipulation of Electron Spins in Carbon-Nanotube Quantum Dots

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