Publications related to Dirac nodal lines and flat-band surface state in the functional oxide RuO2

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

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 CeAlSi and CeAlGe

Lorenzo Berardo

This TPIV experiment deals with first measurements of CeAlSi and CeAlGe magnetic properties and allows to a comparison between these last two. The first step is a description of MPMS measurement, then the paramagnetism and ferromagnetism theory leads to an ...

2017

Time-reversal symmetry for systems in a constant external magnetic field

Sara Bonella, Alessandro Coretti

The time-reversal properties of charged systems in a constant external magnetic field are reconsidered in this paper. We show that the evolution equations of the system are invariant under a new symmetry operation that implies a new signature property for ...

Amer Physical Soc2017

Tunable spin polarization and superconductivity in engineered oxide interfaces

Stefano Rusponi

Advances in growth technology of oxide materials allow single atomic layer control of heterostructures. In particular delta doping, a key materials' engineering tool in today's semiconductor technology, is now also available for oxides. Here we show that a ...

Nature Publishing Group2016

Terahertz-induced demagnetization in ferromagnets

Christoph Peter Hauri, Mostafa Shalaby

We experimentally demonstrate ultrafast terahertz induced demagnetization in conducting ferromagnets, Ni, Co, and Fe. At even higher excitation fluence, the materials lose their magnetic properties and then get damaged before magnetic switching takes place ...

Ieee2016

Magnetodielectric detection of magnetic quadrupole order in Ba(TiO)Cu4(PO4)4 with Cu4O12 square cupolas

Henrik Moodysson Rønnow, Peter Babkevich, Gregory Scott Tucker, Julia Martius

In vortex-like spin arrangements, multiple spins can combine into emergent multipole moments. Such multipole moments have broken space-inversion and time-reversal symmetries, and can therefore exhibit linear magnetoelectric (ME) activity. Three types of su ...

2016

Origin of Perpendicular Magnetic Anisotropy and Large Orbital Moment in Fe Atoms on MgO

Harald Brune, Stefano Rusponi, Marina Pivetta, Jan Gui-Hyon Dreiser, Pietro Gambardella, Fabio Donati, Luca Gragnaniello, Giulia Elisabetta Pacchioni

We report on the magnetic properties of individual Fe atoms deposited on MgO(100) thin films probed by x-ray magnetic circular dichroism and scanning tunneling spectroscopy. We show that the Fe atoms have strong perpendicular magnetic anisotropy with a zer ...

American Physical Society2015

Comparing XMCD and DFT with STM spin excitation spectroscopy for Fe and Co adatoms on

Harald Brune, Stefano Rusponi, Pietro Gambardella, Markus Etzkorn, Anne Lehnert

We report on the magnetic properties of Fe and Co adatoms on a Cu2N/Cu(100)-c(2 x 2) surface investigated by x-ray magnetic dichroism measurements and density functional theory (DFT) calculations including the local coulomb interaction. We compare these re ...

Amer Physical Soc2015

Mossbauer studies of the peculiar magnetism in parent compounds of the iron-based superconductors

Janusz Andrzej Karpinski

A review of the magnetism in the parent compounds of the iron-based superconductors is given based on the transmission Mossbauer spectroscopy of Fe-57 and Eu-151. It was found that the 3d magnetism is of the itinerant character with varying admixture of th ...

Taylor & Francis Ltd2015

Topologically robust sound propagation in an angular-momentum-biased graphene-like resonator lattice

Romain Christophe Rémy Fleury

Topological insulators do not allow conduction in the bulk, yet they support edge modes that travel along the boundary only in one direction, determined by the carried electron spin, with inherent robustness to defects and disorder. Topological insulators ...

2015

Dirac nodal lines and flat-band surface state in the functional oxide RuO2

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

Magnetic properties of CeAlSi and CeAlGe

Time-reversal symmetry for systems in a constant external magnetic field

Tunable spin polarization and superconductivity in engineered oxide interfaces

Terahertz-induced demagnetization in ferromagnets

Magnetodielectric detection of magnetic quadrupole order in Ba(TiO)Cu4(PO4)4 with Cu4O12 square cupolas

Origin of Perpendicular Magnetic Anisotropy and Large Orbital Moment in Fe Atoms on MgO

Comparing XMCD and DFT with STM spin excitation spectroscopy for Fe and Co adatoms on

Mossbauer studies of the peculiar magnetism in parent compounds of the iron-based superconductors

Topologically robust sound propagation in an angular-momentum-biased graphene-like resonator lattice

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

Magnetic properties of CeAlSi and CeAlGe

Topologically robust sound propagation in an angular-momentum-biased graphene-like resonator lattice

Tunable spin polarization and superconductivity in engineered oxide interfaces

Terahertz-induced demagnetization in ferromagnets

Magnetodielectric detection of magnetic quadrupole order in Ba(TiO)Cu4(PO4)4 with Cu4O12 square cupolas

Origin of Perpendicular Magnetic Anisotropy and Large Orbital Moment in Fe Atoms on MgO

Comparing XMCD and DFT with STM spin excitation spectroscopy for Fe and Co adatoms on

Mossbauer studies of the peculiar magnetism in parent compounds of the iron-based superconductors

Time-reversal symmetry for systems in a constant external magnetic field