V. Balédent

Real-space manifestation of ferroic multipoles in altermagnetic MnF$_2$

Iurii Kibalin, Dalila Bounoua, José A. Rodriguez Velamazán, Óscar Fabelo et autres

Altermagnets are unconventional spin split magnets arising from the zero spin-orbit coupled limit. They host a magnetic multipolar order parameter yet direct real-space observation of these multipoles has remained elusive. Here we use polarized-neutron diffraction to reconstruct the three-dimensional magnetization density of …

Structural and magnetic phases of topological kagome metal Fe 3 Sn 2 under pressure

Anonymous, Laure Thomarat, Kuldeep Kargeti, Chin Shen Ong et autres

in, fr, se, de (code pays fourni par la source)

Observation of spin‑wave altermagnetic splitting in MnF2

Paul McClarty, Arsen Gukasov, Vasile Ovidiu Garlea, Quentin Faure et autres

-Contents of the Data Repository: - Polarized neutron diffraction data acquired in the (HK0) scattering plane. - Inelastic neutron scattering (INS) data from both unpolarized and polarized measurements with an incident neutron energy of Ei =9 meV.- - Reduced multidimensional single-crystal datasets …

INS data supporting the observation of spin‑wave altermagnetic splitting in MnF2

Dalila Bounoua, Quentin Faure, Arsen Gukasov, Paul McClarty et autres

the S(Q,e) datasets of inelastic neutrons scattering measured with unpolarized and polarized neutrons

Anomalous pressure dependence of the bulk modulus and Yb valence in cubic YbPd

Bodry Tegomo Chiogo, V. Balédent, Jean‐Pascal Rueff, E. Saïman et autres

We investigate the Yb valence instabilities in the strongly correlated YbPd compound using resonant x-ray emission spectroscopy as a function of pressure across the charge-order (CO) transition. At a low temperature ( T = 30 K ) in the CO phase, the …

de, fr, tw (code pays fourni par la source)

Structural and textural analysis of the precursor of Laponite synthesis: Enhanced hydrogen adsorption in a clay material

Mohammad AbdelSater, Martine Lanson, Valérie Magnin, Erwan Paineau et autres

fr (code pays fourni par la source)

BaFe 2 Se 3 : A quasiunidimensional noncentrosymmetric superconductor

Shiyu Deng, Aye Roll, W. G. Zheng, Geetanjali Giri et autres

fr, us (code pays fourni par la source)

Insights into Condensed Matter Properties from High-Pressure Studies

V. Balédent

National audience

Altermagnetism revealed by polarized neutrons in MnF$_2$

Quentin Faure, Dalila Bounoua, V. Balédent, Arsen Gukasov et autres

Motivated by possible spintronics applications in antiferromagnets, it was recently observed that symmetry admits magnets that combine attractive features of both ferromagnets and antiferromagnets. These systems, dubbed altermagnets, have been the subject of intense study with direct spectroscopic evidence, from ARPES and …

fr, us, ca (code pays fourni par la source)

Iron-based spin-ladder compounds BaFe2X3

V. Balédent

National audience

Highly variable carbon environment in the κ -(BEDT-TTF) 2 Cu 2 ( CN ) 3 salt probed by carbon K -edge x-ray absorption and resonant inelastic x-ray scattering spectroscopy

Djénabou Bayo, V. Balédent, Alberto Boccuni, Vita Ilakovac et autres

Using near-edge x-ray absorption fine structure (NEXAFS) and resonant inelastic x-ray scattering (RIXS) at the C $K$-edge, we have studied the carbon environment and dynamics in $\ensuremath{\kappa}{\text{-(BEDT-TTF)}}_{2}{\mathrm{Cu}}_{2}{(\mathrm{CN})}_{3}$ and supplemented them by density functional theory calculations. The maximum in the NEXAFS pre-edge is …

gb, fr, us, jp (code pays fourni par la source)

Spin-state stability in Mn 2 O 3 across the volume collapse phase transition under pressure up to 41 GPa

V. Balédent, S. R. Shieh, Jean‐Pascal Rueff

We investigate the spin state stability of Mn in $\ensuremath{\alpha}\text{\ensuremath{-}}{\mathrm{Mn}}_{2}{\mathrm{O}}_{3}$ through the structural, insulator-to-metal transition under high pressure by x-ray emission spectroscopy (XES) and x-ray diffraction (XRD) up to 41 GPa. The XES spectra show a broadening of the main line and …

fr, ca (code pays fourni par la source)