123 citations · 686 across the 15 of their papers we have counts for
15 papers
Enlarging the magnetocaloric operating window of the Dy2NiMnO6 double perovskite
M. Balli, S. Mansouri, P. Fournier +6
In this paper, we mainly focus on the magnetic and magnetocaloric features of La2-xDyxNiMnO6 double perovskites. Their magnetocaloric properties are investigated in terms of both e…
Utility of the inverse partial fluorescence for electronic structure studies of battery materials
H. Wadati, A. J. Achkar, D. G. Hawthorn +7
X-ray absorption spectroscopy (XAS) is one of the most widely used experimental techniques to study the electronic and spatial structure of materials. Fluorescence yield mode is bu…
Raman scattering study of delafossite magnetoelectric multiferroic compounds: CuFeO2 and CuCrO2
O. Aktas, K. D. Truong, T. Otani +4
Ultrasonic velocity measurements on the magnetoelectric multiferroic compound CuFeO2 reveal that the antiferromagnetic transition observed at TN1 = 14 K might be induced by an R-3m…
Investigation of phonon behavior in Pr2NiMnO6 by micro-Raman spectroscopy
K. D. Truong, M. P. Singh, S. Jandl +1
The temperature dependence of phonon excitations and the presence of spin phonon coupling in polycrystalline Pr2NiMnO6 samples were studied using micro-Raman spectroscopy and magne…
Phase formation, phonon behavior, and magnetic properties of novel ferromagnetic La3BAlMnO9 (B = Co or Ni) triple perovskites
M. P. Singh, K. D. Truong, S. Jandl +1
In the quest for novel magnetoelectric materials, we have grown, stabilized and explored the properties of La3BAlMnO9 (B = Co or Mn) thin films. In this paper, we report the influe…
Multiferroic double perovskites: Opportunities, Issues and Challenges
M. P. Singh, K. D. Truong, S. Jandl +1
Despite the great technological and scientific importance, a well-controlled coupled behavior in magnetoelectric multiferroic materials at room temperature remains challenging. We…
Influence of Ni/Mn cation order on the spin-phonon coupling in multifunctional La2NiMnO6 epitaxial films by polarized Raman spectroscopy
K. D. Truong, M. P. Singh, S. Jandl +1
We report the influence of Ni/Mn ordering on the spin-phonon coupling in multifunctional La2NiMnO6. Three types of films with different levels of structural order, including long-r…
Long-range Ni/Mn structural order in epitaxial double perovskite La2NiMnO6 thin films
M. P. Singh, K. D. Truong, S. Jandl +1
We report and compare the structural, magnetic, and optical properties of ordered La2NiMnO6 thin films and its disordered LaNi0.5Mn0.5O3 counterpart. An x-ray diffraction study rev…
Mixed pairing symmetry in κ-(BEDT-TTF)_2 X organic superconductors from ultrasonic velocity measurements
Maxime Dion, David Fournier, Mario Poirier +2
Discontinuities in elastic constants are detected at the superconducting transition of layered organic conductors κ-(BEDT-TTF)_{2}X by longitudinal and transverse ultrasonic veloci…
Growth, magnetic properties and Raman scattering of La2NiMnO6 single crystals
M. N. Iliev, M. M. Gospodinov, M. P. Singh +4
Millimeter size single crystals of double perovskite La2NiMnO6 (LNMO) were grown by the High Temperature Solution Growth Method. The magnetic measurements and polarized Raman spect…
A radical approach to promote multiferroic coupling in double perovskites
M. P. Singh, K. D. Truong, P. Fournier +4
Double perovskites provide a unique opportunity to induce and control multiferroic behaviors in oxide systems. The appealing possibility to design materials with a strong coupling…
Stabilization and functional properties of La3NiAlMnO9 and La3CoAlMnO9 magnetoelectric triple perovskites
M. P. Singh, K. D. Truong, S. Jandl +1
Ferromagnetic La3NiAlMnO9 (LNAMO) and La3CoAlMnO9 (LCAMO) triple-perovskite thin films are stabilized in the 750-860 oC temperature range in 100 to 900 mTorr O2 pressure range usin…
Competition between magnetism and superconductivity in the organic metal -[BEDT-TTF]Cu[N(CN)]Br
David Fournier, Mario Poirier, Kim Doan Truong
Ultrasonic velocity and attenuation measurements on the quasi-two-dimensional organic conductor -[BEDT-TTF]Cu[N(CN)]Br give the first determination of the coexistence zo…
Mott Transition, Compressibility Divergence and P-T Phase Diagram of Layered Organic Superconductors: An Ultrasonic Investigation
D. Fournier, M. Poirier, M. Castonguay +1
The phase diagram of the organic superconductor -(BEDT-TTF)Cu[N(CN)Cl has been investigated by ultrasonic velocity measurements under helium gas pressure. Different phas…
Elastic Study of Antiferromagnetic Fluctuations in the Layered Organic Superconductors kappa-(BEDT-TTF)_2X
K. Frikach, M. Poirier, M. Castonguay +1
In an ultrasonic experiment, we have investigated the temperature profile of the velocity of longitudinal elastic waves propagating along a direction perpendicular to the layers in…