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Electronic Correlations and High Pressures

 

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Strongly correlated electron systems present a large number of electronic phase transitions in intermediate mixed valence oxides, spin ladders or molecular conductors. Despite slight differences in crystalline structures, common features are observed that is Mott insulator-metal transition or the competition of superconductivity with other ground states.

The activity of the group is devoted to the study of the various instabilities in these compounds as a function of the applied hydrostatic pressure using various experimental facilities.

Research domains

- Strongly correlated electron systems
- Mott insulator-metal transition
- Unconventional superconductivity
- Phase coexistence
- Quantized Hall effect

Materials

- Molecular conductors
- Mixed valence oxides
- Spin ladder compounds

Experimental techniques

- Nuclear magnetic resonance
- Electronic transport
- Helium gas hydrostatic pressure
- Clamp cell hydrostatic pressure
- Cryogeny (dilution and 3He refrigerators)
- Ultrasonic measurements

 

Recent publications:
 

2019



  • Tisserond É, Nilforoushan N, Caputo M, et al. Electronic structure of the α-(BEDT-TTF)2I3 surface by photoelectron spectroscopy. The European Physical Journal B. 2019;92(4):70. Available at: http://link.springer.com/10.1140/epjb/e2019-90565-4. Accessed July 2, 2019.

2018


  • Hachem H, Xu Z, Bellec N, et al. Neutral, closed-shell nickel bis(2-alkylthio-thiazole-4,5-dithiolate) complexes as single component molecular conductors. Dalton Transactions. 2018;47(18):6580–6589.

  • Henaff R, Le Doudic G, Pilette B, et al. A study of kinetic friction: The Timoshenko oscillator. American Journal of Physics. 2018;86(3):174-179.

  • Jeannin O, Reinheimer EW, Foury-Leylekian P, et al. Decoupling anion-ordering and spin-Peierls transitions in a strongly one-dimensional organic conductor with a chessboard structure, ( <i>o</i> -Me <sub>2</sub> TTF) <sub>2</sub> NO <sub>3</sub>. IUCrJ. 2018;5(3):361-372.

  • Le Gal Y, Roisnel T, Auban-Senzier P, et al. Stable Metallic State of a Neutral-Radical Single-Component Conductor at Ambient Pressure. Journal of the American Chemical Society. 2018;140(22):6998-7004.

  • Legros A, Benhabib S, Tabis W, et al. Universal T-linear resistivity and Planckian dissipation in overdoped cuprates. Nature Physics. 2018:21.

  • Nguyen VS, Mai VH, Auban Senzier P, et al. Direct Evidence of Lithium Ion Migration in Resistive Switching of Lithium Cobalt Oxide Nanobatteries. Small. 2018;14(24):1801038.

  • Rodríguez-Fortea A, Kaleta J, Mézière C, et al. Asymmetric Choreography in Pairs of Orthogonal Rotors. ACS Omega. 2018;3(1):1293-1297.

  • Sahadevan SA, Abhervé A, Monni N, et al. Conducting Anilate-Based Mixed-Valence Fe(II)Fe(III) Coordination Polymer: Small-Polaron Hopping Model for Oxalate-Type Fe(II)Fe(III) 2D Networks. Journal of the American Chemical Society. 2018;140(39):12611-12621.


  • Sedeki A, Auban-Senzier P, Yonezawa S, Bourbonnais C, Jerome D. Influence of carrier lifetime on quantum criticality and superconducting T c of (TMTSF) 2 ClO 4. Physical Review B. 2018;98(11). Available at: https://link.aps.org/doi/10.1103/PhysRevB.98.115111. Accessed September 27, 2018.