Publications related to ANa3M7(PO4)6 (A = K, Rb, Cs and M = Mn, Fe, Co): Three-dimensional transition metal phosphates exhibiting low-dimensional magnetic anomalies

Magnetism of Single Surface Adsorbed Atoms Studied with Radio-Frequency STM

This thesis investigates the magnetic properties of single atoms and molecules adsorbed on thin magnesium oxide decoupling layers, grown on a silver single crystal. To address these systems experimentally, we use a low temperature scanning tunneling micros ...

EPFL2024

Spin Textures in 2D Magnets

Lukas Powalla

The continuous reduction of the structural size in nanotechnology slowed down over the last decade, approaching the natural limit of single atoms as building blocks of matter. Therefore, intensive research is directed toward exploring new frontiers, in par ...

EPFL2023

Crystallization of FAPbI3: Polytypes and stacking faults

Paramvir Ahlawat

Molecular dynamics simulations are performed to study the crystallization of formamidinium lead iodide. From all-atom simulations of the crystal growth process and the delta-alpha-phase transitions, we try to reveal the formation of various stack-faulted i ...

Melville2023

Magnetic dynamics across the in-field transition in Ca3Co2O6

Henrik Moodysson Rønnow, Arnaud Magrez, Ivica Zivkovic, Nagabhushan Ganesh Hegde

The discovery of multiple coexisting magnetic phases in the crystallographically homogeneous compound Ca3Co2O6 has stimulated ongoing research activity. In recent years the main focus has been on the zero-field-state properties, where exceedingly long time ...

AMER PHYSICAL SOC2020

Optical gap and fundamental gap of oligoynes and carbyne

Holger Frauenrath, Jan Cornelius Brauer, Stephen Schrettl, Laurent Alexis Clément Vannay, Eric Albert Georges Bremond, Emmanuel Romaric Contal

The optoelectronic properties of various carbon allotropes and nanomaterials have been well established, while the purely sp-hybridized carbyne remains synthetically inaccessible. Its properties have therefore frequently been extrapolated from those of def ...

2020

Bulk single-crystal growth of the theoretically predicted magnetic Weyl semimetals RAlGe (R = Pr, Ce)

Jonathan White, Neeraj Kumar

We explore two methods for single-crystal growth of the theoretically proposed magnetic Weyl semimetals RAlGe (R = Pr, Ce), which prove that a floating-zone technique, being both crucible- and flux-free, is crucial to obtain perfectly stoichiometric RAlGe ...

AMER PHYSICAL SOC2019

Observation of two independent skyrmion phases in a chiral magnetic material

Helmuth Berger

Magnetic materials can host skyrmions, which are topologically non-trivial spin textures. In chiral magnets with cubic lattice symmetry, all previously observed skyrmion phases require thermal fluctuations to become thermodynamically stable in bulk materia ...

2018

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

Magnetic properties of surface-adsorbed single rare earth atoms, molecules, and atomic scale clusters

Aparajita Singha

This thesis presents combined experimental and theoretical investigations of nanoscale, surface-supported magnets based on rare earths (RE) to understand and control the magnetic properties down to the scale of single atoms. We present the effects of adato ...

EPFL2017

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

ANa3M7(PO4)6 (A = K, Rb, Cs and M = Mn, Fe, Co): Three-dimensional transition metal phosphates exhibiting low-dimensional magnetic anomalies

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Magnetism of Single Surface Adsorbed Atoms Studied with Radio-Frequency STM

Spin Textures in 2D Magnets

Crystallization of FAPbI3: Polytypes and stacking faults

Magnetic dynamics across the in-field transition in Ca3Co2O6

Optical gap and fundamental gap of oligoynes and carbyne

Bulk single-crystal growth of the theoretically predicted magnetic Weyl semimetals RAlGe (R = Pr, Ce)

Observation of two independent skyrmion phases in a chiral magnetic material

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

Magnetic properties of surface-adsorbed single rare earth atoms, molecules, and atomic scale clusters

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

Crystallization of FAPbI3: Polytypes and stacking faults

Spin Textures in 2D Magnets

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

Magnetic dynamics across the in-field transition in Ca3Co2O6

Magnetism of Single Surface Adsorbed Atoms Studied with Radio-Frequency STM

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

Observation of two independent skyrmion phases in a chiral magnetic material

Magnetic properties of surface-adsorbed single rare earth atoms, molecules, and atomic scale clusters

Optical gap and fundamental gap of oligoynes and carbyne

Bulk single-crystal growth of the theoretically predicted magnetic Weyl semimetals RAlGe (R = Pr, Ce)