Publication
From nanotubes to single crystals: Co doped TiO2
Publications associées (49)
Crystal Structure, Transport, and Magnetic Properties of an Ir6+ Compound Ba8Al2IrO14
László Forró, Henrik Moodysson Rønnow, Arnaud Magrez, Alla Arakcheeva, Lin Yang, Ana Akrap, Krunoslav Prsa, Andrea Pisoni, Sergiy Katrych, Bastien Dalla Piazza, Jacim Jacimovic
The novel iridate Ba8Al2IrO14 was prepared as single crystals by self-flux method, thereby providing a rare example of an all-Ir(VI) compound that can be synthesized under ambient pressure conditions. The preparation of all-Ir6+ iridate without using tradi ...
2015Intrachain antiferromagnetic exchange in a 1D branched-chain built of two different copper(II) centres interlinked by end-on azido and phenoxo bridges: electron density map, electrochemical and magnetic properties
Henrik Moodysson Rønnow, Kurt Schenk, Philip Pattison, Krunoslav Prsa, Arash Alahgholipour Omrani, Noore Elahi Shaik
A 1D, end-on azido- and phenoxo-bridged, coordination polymer, Cu-2(mu-NAPPR)(mu(1,1)-N-3)(2) (1), (NAPPR(2-) = 1,3-bis(naphthylideneimino) propane dianion), was synthesized and characterized. The 1D branched-chain is built of two types of slightly di ...
2015Hydrogen plasma treatment for improved conductivity in amorphous aluminum doped zinc tin oxide thin films
Christophe Ballif, Aïcha Hessler-Wyser, Quentin Thomas Jeangros, Sylvain Nicolay, Monica Morales Masis, Laura Ding, Fabien Paul Jacques Dauzou
Improving the conductivity of earth-abundant transparent conductive oxides (TCOs) remains an important challenge that will facilitate the replacement of indium-based TCOs. Here, we show that a hydrogen (H-2)-plasma post-deposition treatment improves the co ...
Amer Inst Physics2014Electrical detection of spin hyperpolarization in InP
Jean-Philippe Ansermet, Christian Caspers
The electrical detection of surface spin polarization in Indium Phosphide (InP) is demonstrated. Using a planar four-terminal architecture on top of semi-insulating Fe: InP (001) wafers, optical orientation is separated from electrical detection. Spin filt ...
Amer Inst Physics2014Mechanism of basal-plane antiferromagnetism in the spin-orbit driven iridate Ba2IrO4
Ioannis Rousochatzakis, Vamshi Mohan Katukuri
By ab initio many-body quantum chemistry calculations, we determine the strength of the symmetric anisotropy in the 5d5 j ~ 1/2 layered material Ba2IrO4. While the calculated anisotropic couplings come out in the range of a few meV, orders of magnitude str ...
2014A cascade through spin states in the ultrafast haem relaxation of met-myoglobin
Majed Chergui, Frank van Mourik, Cristina Consani
We report on a study of the early relaxation processes of met-Myoglobin in aqueous solution, using a combination of ultrafast broadband fluorescence detection and transient absorption with a broad UV-visible continuum probe at different pump energies. Reco ...
American Institute of Physics2014Synthesis, crystal growth and physical properties of the frustrated spin ladder material BiCu2PO6
In recent years quantum antiferromagnets with an intrinsically disordered (“spin liquid”) ground state and an energy gap in the spin excitation spectrum have received a great deal of attention. In search for new experimental realizations of spin-ladder and ...
EPFL2013Magnetism and Atomic Scale Structure of Bimetallic Nanostructures at Surfaces
his thesis reports on the magnetic properties of bi- and tri-metallic nanostructures at surfaces. The main goal is to build the smallest nanostructure ferromagnetic at room temperature and the assembly of those structures in high density arrays. To this pu ...
EPFL2013The Order-Parameter Symmetry and Fermi Surface Topology of 122 Fe-Based Superconductors: A Point-Contact Andreev-Reflection Study
We report on the results of directional point-contact Andreev-reflection (PCAR) measurements in Ba(Fe1-x Co (x) )(2)As-2 single crystals and epitaxial c-axis oriented films with x=0.08 as well as in Ca(Fe1-x Co (x) )(2)As-2 single crystals with x=0.06. The ...
Springer2013Chemically exfoliated large-area two-dimensional flakes of molybdenum disulfide for device applications
Klaus Kern, Kannan Balasubramanian, Vivek Pachauri
A solution-based exfoliation method for obtaining large-area two-dimensional flakes of molybdenum disulfide, followed by the fabrication of electrical devices is presented in this manuscript. The exfoliation method is based on the use of an aprotic solvent ...
Amer Inst Physics2013