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Magnetic Coulomb Phase in the Spin Ice Ho2Ti2O7.
Every magnet has two poles, north, and south. If we cut a bar magnet in half and wind up with two magnets, each has its own North and South Pole. But physicists have long speculated that unattached
Coupling of magnetic order and charge transport in the candidate Dirac semimetal EuCd2As2
We use resonant elastic x-ray scattering to determine the evolution of magnetic order in ${\mathrm{EuCd}}_{2}{\mathrm{As}}_{2}$ below ${T}_{\mathrm{N}}=9.5$ K, as a function of temperature and
Suppression of thermal conductivity by rattling modes in thermoelectric sodium cobaltate.
An Einstein-like rattling mode at low energy, involving large anharmonic displacements of the sodium ions inside multi-vacancy clusters, is directly observed for thermoelectric Na(0.8)CoO2, which has a large-period superstructure.
Patterning of sodium ions and the control of electrons in sodium cobaltate
The results provide a good starting point to understand the electronic properties in terms of a Hubbard hamiltonian that takes into account the electrostatic potential from the Na superstructures.
Structure and superconductivity of LiFeAs.
Lithium iron arsenide phases with compositions close to LiFeAs exhibit superconductivity at temperatures at least as high as 16 K, demonstrating that superconducting [FeAs](-) anionic layers with the
High-temperature electromagnons in the magnetically induced multiferroic cupric oxide driven by intersublattice exchange.
It is demonstrated using terahertz time-domain spectroscopy that intersublattice exchange in the improper multiferroic cupric oxide (CuO) creates electromagnons at substantially elevated temperatures (213-230 K).
Restoration of the third law in spin ice thin films
The results show how the physics of frustrated pyrochlore magnets such as spin ice may be significantly modified in thin-film samples.
Coexistence of incommensurate magnetism and superconductivity in Fe1+ySexTe1-x
We have studied the superconducting and magnetic properties of ${\text{Fe}}_{1+y}{\text{Se}}_{x}{\text{Te}}_{1\ensuremath{-}x}$ single crystals $(0\ensuremath{\le}x\ensuremath{\le}0.5)$ by magnetic
On the magnetic structure of Sr3Ir2O7: an x-ray resonant scattering study.
The azimuthal and polarization dependence of the magnetic reflections, relating to both magnetic wavevectors, show that the Ir magnetic moments in the bilayer compound are oriented along the c axis, which contrasts with single layer Sr(2)IrO(4) where the moments are confined to the ab plane.
All-in-all-Out Magnetic Order and Propagating Spin Waves in Sm_{2}Ir_{2}O_{7}.
The results support the notion that pyrochlore iridates may host correlated Weyl semimetals and show that the magnetic ground state is an all-in-all-out (AIAO) antiferromagnet.