Publications related to Magnetoelectric effects in single crystals of the cubic ferrimagnetic helimagnet Cu2OSeO3

Polarization field mapping of AlInN/AlN/GaN heterostructure

Nicolas Grandjean, Jean-François Carlin, Eric Feltin, Marcus Gonschorek, Anas Mouti

Off-axis electron holography has been used to measure the built-in potential profile across an Al0.85In0.15N/AlN/GaN high electron mobility transistor heterostructure. Profile measurements indicated a polarization-induced electric field of 6.9 MV/cm within ...

2009

Polarization field mapping of Al0.85In0.15N/AlN/GaN heterostructure

Nicolas Grandjean, Jean-François Carlin, Eric Feltin, Marcus Gonschorek, Anas Mouti

Off-axis electron holography has been used to measure the built-in potential profile across an Al0.85In0.15N/AlN/GaN high electron mobility transistor heterostructure. Profile measurements indicated a polarization-induced electric field of 6.9 MV/cm within ...

2009

Magnetic and resonance properties of the two-dimensional S=1 compound Ni-5(TeO3)(4)Cl-2 with frustrated geometry

Helmuth Berger

The magnetic and magnetoresonance properties of a new single-crystal compound Ni-5(TeO3)(4)Cl-2 are studied. Measurements of the magnetization and magnetic susceptibility of the crystal in a wide temperature range (5-300 K) make it possible to conclude tha ...

2008

Transport properties of cluster-assembled magnetic nanostructures

Giulia Di Domenicantonio

The aim of this thesis is to get a deeper understanding of magnetic properties of small clusters when they are embedded in a host material. The study was motivated by the observation of the very peculiar properties that clusters present in the gas phase or ...

EPFL2008

Energetics and magnetic impact of 3d-metal doping of the half-metallic ferromagnet NiMnSb

We have performed a theoretical study of the effect of doping the half-Heusler alloy NiMnSb with the magnetic 3d metals Cr, Mn, Fe, Co, and Ni, with respect to both energetics and magnetic properties. Starting from the formation energies, we discuss the po ...

2008

Dynamic nuclear polarization of small labelled molecules in frozen water-alcohol solutions

Arnaud Comment, Sami Jannin, Jacques Van Der Klink, Fiodar Kurdzesau

In recent years methods of creating 'hyperpolarized' substances have gained considerable attention in biomedical magnetic resonance and dynamic nuclear polarization (DNP) is one of the most promising, especially for imaging applications. Here we present re ...

2008

Thermodynamics of the Spin Luttinger Liquid in a Model Ladder Material

Bruce Normand, Pierre Bouillot, Daniel Biner

The phase diagram in temperature and magnetic field of the metal-organic, two-leg, spin-ladder compound (C5H12N)(2)CuBr4 is studied by measurements of the specific heat and the magnetocaloric effect. We demonstrate the presence of an extended spin Luttinge ...

2008

Theory of Magnetization Plateaux in the Shastry-Sutherland Model

Frédéric Mila, Julien Dorier

Motivated by the remarkable properties of SrCu2(BO3)(2) in a magnetic field, we use perturbative continuous unitary transformations to determine the magnetization plateaux of the Shastry-Sutherland model, unveiling an unexpected sequence of plateaux progre ...

2008

Gadolinium(III) ion in liquid water: structure, dynamics and magnetic interactions from first principles

Lothar Helm, Oleg Yazyev

We applied first principles molecular dynamics (MD) technique to study structure, dynamics, and magnetic interactions of the

Gd^{3+}

aqua ion dissolved in liquid water, a prototypical system for Gd-based complexes used as contrast agents for magnetic res ...

2007

Uniform and staggered magnetizations induced by Dzyaloshinskii-Moriya interactions in isolated and coupled spin-1∕2dimers in a magnetic field

Frédéric Mila, Salvatore Manmana

We investigate the interplay of Dzyaloshinskii-Moriya interactions and an external field in spin-1∕2 dimers. For isolated dimers and at low field, we derive simple expressions for the staggered and uniform magnetizations which show that the orientation of ...

2007

Magnetoelectric effects in single crystals of the cubic ferrimagnetic helimagnet Cu2OSeO3

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Polarization field mapping of AlInN/AlN/GaN heterostructure

Polarization field mapping of Al0.85In0.15N/AlN/GaN heterostructure

Magnetic and resonance properties of the two-dimensional S=1 compound Ni-5(TeO3)(4)Cl-2 with frustrated geometry

Transport properties of cluster-assembled magnetic nanostructures

Energetics and magnetic impact of 3d-metal doping of the half-metallic ferromagnet NiMnSb

Dynamic nuclear polarization of small labelled molecules in frozen water-alcohol solutions

Thermodynamics of the Spin Luttinger Liquid in a Model Ladder Material

Theory of Magnetization Plateaux in the Shastry-Sutherland Model

Gadolinium(III) ion in liquid water: structure, dynamics and magnetic interactions from first principles

Uniform and staggered magnetizations induced by Dzyaloshinskii-Moriya interactions in isolated and coupled spin-1∕2dimers in a magnetic field

Transport properties of cluster-assembled magnetic nanostructures

Energetics and magnetic impact of 3d-metal doping of the half-metallic ferromagnet NiMnSb

Uniform and staggered magnetizations induced by Dzyaloshinskii-Moriya interactions in isolated and coupled spin-1∕2dimers in a magnetic field

Magnetic and resonance properties of the two-dimensional S=1 compound Ni-5(TeO3)(4)Cl-2 with frustrated geometry

Polarization field mapping of AlInN/AlN/GaN heterostructure

Dynamic nuclear polarization of small labelled molecules in frozen water-alcohol solutions

Thermodynamics of the Spin Luttinger Liquid in a Model Ladder Material

Gadolinium(III) ion in liquid water: structure, dynamics and magnetic interactions from first principles

Polarization field mapping of Al0.85In0.15N/AlN/GaN heterostructure

Theory of Magnetization Plateaux in the Shastry-Sutherland Model