Baptiste Vignolle
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View article: Oxyhydride Synthesis through Facile Water Dissociation on the Electride Intermetallic LaScSi
Oxyhydride Synthesis through Facile Water Dissociation on the Electride Intermetallic LaScSi Open
The simultaneous presence of hydride (H-) and oxide (O2-) anions in an inorganic material is thermodynamically challenging. Oxyhydrides have always been synthesized from an oxide precursor, by using high-temperature s…
View article: Unveiling the key role of rare-earth (La vs Nd) in Ni+-based layered nickelates : impact on structures and physical properties.
Unveiling the key role of rare-earth (La vs Nd) in Ni+-based layered nickelates : impact on structures and physical properties. Open
We report the synthesis of bulk RE1-xAxNiO3 (RE = La, Nd ; A = Sr, Ca) perovskite phases under high oxygen pressure (T = 900 °C, PO2 = 250 bars) and identified a solubility limit of x = 0.07 for phase-pure samples. This solubility limit, s…
View article: Drastic enhancement of electronic correlations induced by hydrogen insertion in the cerium intermetallic compound CeFeSi
Drastic enhancement of electronic correlations induced by hydrogen insertion in the cerium intermetallic compound CeFeSi Open
We report a comparative study of two cerium-based intermetallic compounds: CeFeSi with an anti-PbFCl type structure, and CeFeSiH with a ZrCuSiAs type structure. The latter is obtained from CeFeSi through hydrogen insertion. Our results are…
View article: From an antiferromagnetic insulator to a strongly correlated metal in square-lattice MCl2(pyrazine)2 coordination solids
From an antiferromagnetic insulator to a strongly correlated metal in square-lattice MCl2(pyrazine)2 coordination solids Open
Electronic synergy between metal ions and organic linkers is a key to engineering molecule-based materials with a high electrical conductivity and, ultimately, metallicity. To enhance conductivity in metal-organic solids, chemists aim to b…
View article: CCDC 2158351: Experimental Crystal Structure Determination
CCDC 2158351: Experimental Crystal Structure Determination Open
An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available …
View article: CCDC 2158352: Experimental Crystal Structure Determination
CCDC 2158352: Experimental Crystal Structure Determination Open
An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available …
View article: CCDC 2158353: Experimental Crystal Structure Determination
CCDC 2158353: Experimental Crystal Structure Determination Open
An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available …
View article: CCDC 2158354: Experimental Crystal Structure Determination
CCDC 2158354: Experimental Crystal Structure Determination Open
An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available …
View article: Magnetotransport signatures of antiferromagnetism coexisting with charge order in the trilayer cuprate HgBa2Ca2Cu3O8+δ
Magnetotransport signatures of antiferromagnetism coexisting with charge order in the trilayer cuprate HgBa2Ca2Cu3O8+δ Open
View article: Topotactic fluorination of intermetallics as an efficient route towards quantum materials
Topotactic fluorination of intermetallics as an efficient route towards quantum materials Open
View article: Evidence for antiferromagnetism coexisting with charge order in the trilayer cuprate HgBa$_2$Ca$_2$Cu$_3$O$_{8+ \delta}$.
Evidence for antiferromagnetism coexisting with charge order in the trilayer cuprate HgBa$_2$Ca$_2$Cu$_3$O$_{8+ \delta}$. Open
Multilayered cuprates possess not only the highest superconducting temperature transition but also offer a unique platform to study disorder-free CuO$_2$ planes and the interplay between competing orders with superconductivity. Here, we st…
View article: Arc-to-pocket transition and quantitative understanding of transport properties in cuprate superconductors
Arc-to-pocket transition and quantitative understanding of transport properties in cuprate superconductors Open
Despite immense efforts, the cuprate Fermi surface (FS) has been unambiguously determined in only two distinct, low-temperature regions of the phase diagram: a large hole-like FS at high doping, and a small electron-like pocket associated …
View article: High magnetic field ultrasound study of spin freezing in <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mrow><mml:msub><mml:mi>La</mml:mi><mml:mrow><mml:mn>1.88</mml:mn></mml:mrow></mml:msub><mml:msub><mml:mi>Sr</mml:mi><mml:mrow><mml:mn>0.12</mml:mn></mml:mrow></mml:msub><mml:msub><mml:mi>CuO</mml:mi><mml:mn>4</mml:mn></mml:msub></mml:mrow></mml:math>
High magnetic field ultrasound study of spin freezing in Open
High-$T_{\\rm{c}}$ cuprate superconductors host spin, charge and lattice instabilities. In particular, in the antiferromagnetic glass phase, over a large doping range, lanthanum based cuprates display a glass-like spin freezing with antife…
View article: High magnetic field ultrasound study of spin freezing in La$_{1.88}$Sr$_{0.12}$CuO$_4$
High magnetic field ultrasound study of spin freezing in La$_{1.88}$Sr$_{0.12}$CuO$_4$ Open
High-$T_{\rm{c}}$ cuprate superconductors host spin, charge and lattice instabilities. In particular, in the antiferromagnetic glass phase, over a large doping range, lanthanum based cuprates display a glass-like spin freezing with antifer…
View article: R2Co3-xSix (R = Pr, Nd, Sm, Gd) and R2Ni3-xSix (R = Gd-Er), new series of La2Ni3-type phases
R2Co3-xSix (R = Pr, Nd, Sm, Gd) and R2Ni3-xSix (R = Gd-Er), new series of La2Ni3-type phases Open
View article: Synchrotron x-ray scattering study of charge-density-wave order in <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mrow><mml:msub><mml:mi>HgBa</mml:mi><mml:mn>2</mml:mn></mml:msub><mml:msub><mml:mi>CuO</mml:mi><mml:mrow><mml:mn>4</mml:mn><mml:mo>+</mml:mo><mml:mi>δ</mml:mi></mml:mrow></mml:msub></mml:mrow></mml:math>
Synchrotron x-ray scattering study of charge-density-wave order in Open
We present a detailed synchrotron x-ray scattering study of the\ncharge-density-wave (CDW) order in simple tetragonal HgBa$_2$CuO$_{4+\\delta}$\n(Hg1201). Resonant soft x-ray scattering measurements reveal that short-range\norder appears a…
View article: New insight into cuprate charge order from X-ray measurements of HgBa$_2$CuO$_{4+δ}$
New insight into cuprate charge order from X-ray measurements of HgBa$_2$CuO$_{4+δ}$ Open
We present a detailed synchrotron X-ray scattering study of the charge-density-wave (CDW) order in simple tetragonal HgBa$_2$CuO$_{4+\delta}$ (Hg1201). Resonant soft X-ray scattering measurements reveal that short-range order appears at a …
View article: Fermi liquid behavior of the in-plane resistivity in the pseudogap state of YBa <sub>2</sub> Cu <sub>4</sub> O <sub>8</sub>
Fermi liquid behavior of the in-plane resistivity in the pseudogap state of YBa <sub>2</sub> Cu <sub>4</sub> O <sub>8</sub> Open
Significance High-temperature superconductivity evolves out of a metallic state that undergoes profound changes as a function of carrier concentration, changes that are often obscured by the high upper critical fields. In the more disorder…
View article: Dichotomy between Attractive and Repulsive Tomonaga-Luttinger Liquids in Spin Ladders
Dichotomy between Attractive and Repulsive Tomonaga-Luttinger Liquids in Spin Ladders Open
We present a direct NMR method to determine whether the interactions in a Tomonaga-Luttinger liquid (TLL) state of a spin-1/2 Heisenberg antiferromagnetic ladder are attractive or repulsive. For the strong-leg spin ladder compound (C_{7}H_…
View article: Onset of exciton-exciton annihilation in single-layer black phosphorus
Onset of exciton-exciton annihilation in single-layer black phosphorus Open
The exciton dynamics in monolayer black phosphorus is investigated over a very wide range of photoexcited exciton densities using time resolved photoluminescence. At low excitation densities, the exciton dynamics is successfully described …
View article: Origin of the metal-to-insulator crossover in cuprate superconductors
Origin of the metal-to-insulator crossover in cuprate superconductors Open
Superconductivity in cuprates peaks in the doping regime between a metal at high p and an insulator at low p. Understanding how the material evolves from metal to insulator is a fundamental and open question. Early studies in high magnetic…
View article: Onset of exciton-exciton annihilation in single layer black phosphorus
Onset of exciton-exciton annihilation in single layer black phosphorus Open
The exciton dynamics in monolayer black phosphorus is investigated over a\nvery wide range of photoexcited exciton densities using time resolved\nphotoluminescence. At low excitation densities, the exciton dynamics is\nsuccessfully describ…
View article: Confinement of superconducting fluctuations due to emergent electronic inhomogeneities
Confinement of superconducting fluctuations due to emergent electronic inhomogeneities Open
The microscopic nature of an insulating state in the vicinity of a\nsuperconducting state, in the presence of disorder, is a hotly debated\nquestion. While the simplest scenario proposes that Coulomb interactions\ndestroy the Cooper pairs …
View article: Inverse correlation between quasiparticle mass and <i>T</i> <sub>c</sub> in a cuprate high- <i>T</i> <sub>c</sub> superconductor
Inverse correlation between quasiparticle mass and <i>T</i> <sub>c</sub> in a cuprate high- <i>T</i> <sub>c</sub> superconductor Open
Contrary to what is expected near a quantum critical point, pressure decreases the quasiparticle mass of a high- T c superconductor.
View article: Change of carrier density at the pseudogap critical point of a cuprate superconductor
Change of carrier density at the pseudogap critical point of a cuprate superconductor Open
View article: \nOnset of exciton-exciton annihilation in single-layer black phosphorus
\nOnset of exciton-exciton annihilation in single-layer black phosphorus Open
\n Contains fulltext :\n 159871.pdf (Publisher’s version ) (Open Access)\n
View article: Correlation between Fermi surface transformations and superconductivity in the electron-doped high-<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:msub><mml:mi>T</mml:mi><mml:mi>c</mml:mi></mml:msub></mml:math>superconductor<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mrow><mml:msub><mml:mi>Nd</mml:mi><mml:mrow><mml:mn>2</mml:mn><mml:mo>−</mml:mo><mml:mi>x</mml:mi></mml:mrow></mml:msub><mml:msub><mml:mi>Ce</mml:mi><mml:mi>x</mml:mi></mml:msub><mml:msub><mml:mi>CuO</mml:mi><mml:mn>4</mml:mn></mml:msub></mml:mrow></mml:math>
Correlation between Fermi surface transformations and superconductivity in the electron-doped high-superconductor Open
Two critical points have been revealed in the normal-state phase diagram of\nthe electron-doped cuprate superconductor Nd$_{2-x}$Ce$_x$CuO$_4$ by exploring\nthe Fermi surface properties of high quality single crystals by high-field\nmagnet…
View article: Confinement of superconducting fluctuations due to emergent electronic inhomogeneities
Confinement of superconducting fluctuations due to emergent electronic inhomogeneities Open
The microscopic nature of an insulating state in the vicinity of a superconducting state, in the presence of disorder, is a hotly debated question. While the simplest scenario proposes that Coulomb interactions destroy the Cooper pairs at …
View article: Evidence for a small hole pocket in the Fermi surface of underdoped YBa2Cu3Oy
Evidence for a small hole pocket in the Fermi surface of underdoped YBa2Cu3Oy Open