Publications related to Charge multipole correlations and order in Cs2TaCl6

J1−J2 square-lattice Heisenberg antiferromagnets with 4d1 spins: AMoOPO4Cl (A=K,Rb)

Henrik Moodysson Rønnow, Peter Babkevich

Magnetic properties of AMoOPO4Cl (A=K,Rb) with Mo5+ ions in the 4d1 electronic configuration are investigated by magnetization, heat capacity, and nuclear magnetic resonance (NMR) measurements on single crystals, combined with powder neutron diffraction ex ...

2017

Coherent generation of symmetry-forbidden phonons by light-induced electron-phonon interactions in magnetite

Oleg Yazyev, Fabrizio Carbone, Frank van Mourik, Christopher Alexander Arrell, Edoardo Baldini, Andreas Helmut Christian Mann, Simone Borroni

Symmetry breaking across phase transitions often causes changes in selection rules and emergence of optical modes which can be detected via spectroscopic techniques or generated coherently in pump-probe experiments. In second-order or weakly first-order tr ...

Amer Physical Soc2017

Synthesis and Physical Properties of 3d, 4d and 5d Transition Metal Compounds

Lin Yang

In this thesis I study the synthesis and basic physical properties characterization on 3

d

, 4

d

and 5

d

transition metal compounds. Great success has been obtained in 3

d

transition metal compounds, in which the electric states are well localized due t ...

EPFL2017

Constant-pressure nested sampling with atomistic dynamics

Robert John Nicholas Baldock

The nested sampling algorithm has been shown to be a general method for calculating the pressure-temperature-composition phase diagrams of materials. While the previous implementation used single-particle Monte Carlo moves, these are inefficient for conden ...

Amer Physical Soc2017

Magnetic anisotropy in the frustrated spin-chain compound beta-TeVO4

Helmuth Berger

Isotropic and anisotropic magnetic behavior of the frustrated spin-chain compound beta-TeVO4 is reported. Three magnetic transitions observed in zero magnetic field are tracked in fields applied along different crystallographic directions using magnetizati ...

Amer Physical Soc2016

Thermal induced structural properties of silver(I) sulphate (Ag2SO4)

Philip Pattison

The crystal structures of silver(I) sulphate, Ag2SO4, have been investigated as a function of temperature. A main feature is the phase transition from the low-temperature ordered phase, F ddd, to the high-temperature disordered phase, P63/mmc. In particula ...

Wiley-Blackwell2016

Pressure dependence of the structure and electronic properties of Sr3Ir2O7

Henrik Moodysson Rønnow

We study the structural evolution of Sr3Ir2O7 as a function of pressure using x-ray diffraction. At a pressure of 54 GPa at room temperature, we observe a first-order structural phase transition, associated with a change from tetragonal to monoclinic symme ...

2016

Electromagnon dispersion probed by inelastic X-ray scattering in LiCrO2

Henrik Moodysson Rønnow, Christian Rüegg, Sándor Tóth

Inelastic X-ray scattering with meV energy resolution (IXS) is an ideal tool to measure collective excitations in solids and liquids. In non-resonant scattering condition, the cross-section is strongly dominated by lattice vibrations (phonons). However, it ...

2016

Scattering-dominated high-temperature phase of 1T-TiSe2: An optical conductivity study

László Forró, Helmuth Berger, Eduard Tutis, Neven Barisic

The controversy regarding the precise nature of the high-temperature phase of 1T-TiSe2 lasts for decades. It has intensified in recent times when new evidence for the excitonic origin of the low-temperature charge-density wave state started to unveil. Here ...

Amer Physical Soc2016

Spiral magnetic phase in Li-doped Na2IrO3

Sándor Tóth, Kazimierz Conder

The doping of the honeycomb lattice compound Na2IrO3 with cations having smaller ionic radius such as lithium was supposed to drive the system into a Kitaev spin liquid phase. Even at the smallest doping level the long range magnetic order, present in the ...

American Physical Society2015

Charge multipole correlations and order in Cs2TaCl6

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J1−J2 square-lattice Heisenberg antiferromagnets with 4d1 spins: AMoOPO4Cl (A=K,Rb)

Coherent generation of symmetry-forbidden phonons by light-induced electron-phonon interactions in magnetite

Synthesis and Physical Properties of 3d, 4d and 5d Transition Metal Compounds

Constant-pressure nested sampling with atomistic dynamics

Magnetic anisotropy in the frustrated spin-chain compound beta-TeVO4

Thermal induced structural properties of silver(I) sulphate (Ag2SO4)

Pressure dependence of the structure and electronic properties of Sr3Ir2O7

Electromagnon dispersion probed by inelastic X-ray scattering in LiCrO2

Scattering-dominated high-temperature phase of 1T-TiSe2: An optical conductivity study

Spiral magnetic phase in Li-doped Na2IrO3

J1−J2 square-lattice Heisenberg antiferromagnets with 4d1 spins: AMoOPO4Cl (A=K,Rb)

Thermal induced structural properties of silver(I) sulphate (Ag2SO4)

Coherent generation of symmetry-forbidden phonons by light-induced electron-phonon interactions in magnetite

Synthesis and Physical Properties of 3d, 4d and 5d Transition Metal Compounds

Magnetic anisotropy in the frustrated spin-chain compound beta-TeVO4

Pressure dependence of the structure and electronic properties of Sr3Ir2O7

Constant-pressure nested sampling with atomistic dynamics

Electromagnon dispersion probed by inelastic X-ray scattering in LiCrO2

Scattering-dominated high-temperature phase of 1T-TiSe2: An optical conductivity study

Spiral magnetic phase in Li-doped Na2IrO3