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Spin pumping from nuclear spin waves

Nature Physics - Δευ, 22/10/2018 - 00:00

Spin pumping from nuclear spin waves

Spin pumping from nuclear spin waves, Published online: 22 October 2018; doi:10.1038/s41567-018-0310-x

Spin current is generated by pumping from nuclear spin waves. The nuclear magnetic resonance is used to transfer angular momentum from the nuclei of an antiferromagnet to a propagating spin current that is subsequently collected in a distant electrode.

Multiple Coulomb phase in the fluoride pyrochlore CsNiCrF<sub>6</sub>

Nature Physics - Δευ, 22/10/2018 - 00:00

Multiple Coulomb phase in the fluoride pyrochlore CsNiCrF6

Multiple Coulomb phase in the fluoride pyrochlore CsNiCrF<sub>6</sub>, Published online: 22 October 2018; doi:10.1038/s41567-018-0309-3

Neutron and X-ray scattering experiments show that the partly disordered material CsNiCrF6 supports multiple Coulomb phases with structural and magnetic properties dictated by underlying local gauge symmetry.

Spin currents go nuclear

Nature Physics - Δευ, 22/10/2018 - 00:00

Spin currents go nuclear

Spin currents go nuclear, Published online: 22 October 2018; doi:10.1038/s41567-018-0335-1

Generating pure spin currents is a necessary part of many spintronic devices. Now there is a new mechanism for doing this, utilizing nuclear spin waves.

The k-core as a predictor of structural collapse in mutualistic ecosystems

Nature Physics - Δευ, 22/10/2018 - 00:00

The k-core as a predictor of structural collapse in mutualistic ecosystems

The k-core as a predictor of structural collapse in mutualistic ecosystems, Published online: 22 October 2018; doi:10.1038/s41567-018-0304-8

Predicting the collapse of a dynamical system by monitoring the structure of its network of interaction takes the form of stability conditions formulated in terms of a topological invariant of the network, the k-core.

Evidence for topological defects in a photoinduced phase transition

Nature Physics - Δευ, 15/10/2018 - 00:00

Evidence for topological defects in a photoinduced phase transition

Evidence for topological defects in a photoinduced phase transition, Published online: 15 October 2018; doi:10.1038/s41567-018-0311-9

Three different ultrafast probes investigate a non-adiabatic phase transition and find substantial evidence of topological defects inhibiting the reformation of the equilibrium phase.

Giant topological Hall effect in correlated oxide thin films

Nature Physics - Δευ, 15/10/2018 - 00:00

Giant topological Hall effect in correlated oxide thin films

Giant topological Hall effect in correlated oxide thin films, Published online: 15 October 2018; doi:10.1038/s41567-018-0307-5

A strong Hall effect is observed in a material with spin textures and strong electron correlations. This hints that correlation effects can amplify real-space topological spin transport.

Wavelength-scale errors in optical localization due to spin–orbit coupling of light

Nature Physics - Δευ, 15/10/2018 - 00:00

Wavelength-scale errors in optical localization due to spin–orbit coupling of light

Wavelength-scale errors in optical localization due to spin–orbit coupling of light, Published online: 15 October 2018; doi:10.1038/s41567-018-0301-y

The spin–orbit coupling of light leads to systematic wavelength-scale errors in the measurement of the position of emitters of elliptically polarized light.

Excess resistivity in graphene superlattices caused by umklapp electron–electron scattering

Nature Physics - Δευ, 15/10/2018 - 00:00

Excess resistivity in graphene superlattices caused by umklapp electron–electron scattering

Excess resistivity in graphene superlattices caused by umklapp electron–electron scattering, Published online: 15 October 2018; doi:10.1038/s41567-018-0278-6

An increase in electrical resistance caused by the fundamental process of electrons scattering off of each other (umklapp scattering) is observed in graphene superlattice devices. This will limit the electrical properties of such devices.

Publisher Correction: Quantum mechanics: An inconsistent friend

Nature Physics - Παρ, 12/10/2018 - 00:00

Publisher Correction: Quantum mechanics: An inconsistent friend

Publisher Correction: Quantum mechanics: An inconsistent friend, Published online: 12 October 2018; doi:10.1038/s41567-018-0338-y

Publisher Correction: Quantum mechanics: An inconsistent friend

Author Correction: Polygonal motion and adaptable phototaxis via flagellar beat switching in the microswimmer <i>Euglena gracilis</i>

Nature Physics - Τρί, 09/10/2018 - 00:00

Author Correction: Polygonal motion and adaptable phototaxis via flagellar beat switching in the microswimmer Euglena gracilis

Author Correction: Polygonal motion and adaptable phototaxis via flagellar beat switching in the microswimmer <i>Euglena gracilis</i>, Published online: 09 October 2018; doi:10.1038/s41567-018-0336-0

Author Correction: Polygonal motion and adaptable phototaxis via flagellar beat switching in the microswimmer Euglena gracilis

Low-temperature anomaly in disordered superconductors near <i>B</i><sub>c2</sub> as a vortex-glass property

Nature Physics - Δευ, 08/10/2018 - 00:00

Low-temperature anomaly in disordered superconductors near Bc2 as a vortex-glass property

Low-temperature anomaly in disordered superconductors near <i>B</i><sub>c2</sub> as a vortex-glass property, Published online: 08 October 2018; doi:10.1038/s41567-018-0294-6

An anomalous upturn of the critical field at low temperature observed in disordered superconductors has long puzzled researchers. A joint experimental and theoretical study suggests that the origin of the anomaly lies in the physics of vortex glasses.

Selective breakdown of phonon quasiparticles across superionic transition in CuCrSe<sub>2</sub>

Nature Physics - Δευ, 08/10/2018 - 00:00

Selective breakdown of phonon quasiparticles across superionic transition in CuCrSe2

Selective breakdown of phonon quasiparticles across superionic transition in CuCrSe<sub>2</sub>, Published online: 08 October 2018; doi:10.1038/s41567-018-0298-2

Neutron and X-ray scattering studies combined with first-principles calculations suggest that the large, liquid-like ionic mobility in the canonical superionic crystal CuCrSe2 is due to anharmonic phonon dynamics.

Charge trapping and super-Poissonian noise centres in a cuprate superconductor

Nature Physics - Δευ, 08/10/2018 - 00:00

Charge trapping and super-Poissonian noise centres in a cuprate superconductor

Charge trapping and super-Poissonian noise centres in a cuprate superconductor, Published online: 08 October 2018; doi:10.1038/s41567-018-0300-z

A new noise spectroscopy technique shows that charges localized as polarons trapped at impurity sites mediate perpendicular ‘c-axis’ electronic transport in cuprate superconductors.

Publisher Correction: Active matter: Wetting by living tissues

Nature Physics - Δευ, 08/10/2018 - 00:00

Publisher Correction: Active matter: Wetting by living tissues

Publisher Correction: Active matter: Wetting by living tissues, Published online: 08 October 2018; doi:10.1038/s41567-018-0337-z

Publisher Correction: Active matter: Wetting by living tissues

New horizons towards thermalization

Nature Physics - Τετ, 03/10/2018 - 00:00

New horizons towards thermalization

New horizons towards thermalization, Published online: 03 October 2018; doi:10.1038/s41567-018-0326-2

Ideas from theorists in fields as disparate as quantum gravity, quantum information and many-body localization are finding common ground, as we explore in this month’s Focus issue on quantum thermalization.

Live transmission

Nature Physics - Τετ, 03/10/2018 - 00:00

Live transmission

Live transmission, Published online: 03 October 2018; doi:10.1038/s41567-018-0321-7

Live transmission

Does gravity come from quantum information?

Nature Physics - Τετ, 03/10/2018 - 00:00

Does gravity come from quantum information?

Does gravity come from quantum information?, Published online: 03 October 2018; doi:10.1038/s41567-018-0297-3

Recent developments have seen concepts originally developed in quantum information theory, such as entanglement and quantum error correction, come to play a fundamental role in understanding quantum gravity.

Many-body localization and quantum thermalization

Nature Physics - Τετ, 03/10/2018 - 00:00

Many-body localization and quantum thermalization

Many-body localization and quantum thermalization, Published online: 03 October 2018; doi:10.1038/s41567-018-0305-7

It is the common wisdom that time evolution of a many-body system leads to thermalization and washes away quantum correlations. But one class of system — referred to as many-body localized — defy this expectation.

Let’s get practical

Nature Physics - Τετ, 03/10/2018 - 00:00

Let’s get practical

Let’s get practical, Published online: 03 October 2018; doi:10.1038/s41567-018-0324-4

Let’s get practical

Unscrambling the physics of out-of-time-order correlators

Nature Physics - Τετ, 03/10/2018 - 00:00

Unscrambling the physics of out-of-time-order correlators

Unscrambling the physics of out-of-time-order correlators, Published online: 03 October 2018; doi:10.1038/s41567-018-0295-5

Quantitative tools for measuring the propagation of information through quantum many-body systems, originally developed to study quantum chaos, have recently found many new applications from black holes to disordered spin systems.

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