Zobrazeno 1 - 10
of 25
pro vyhledávání: '"Bolloc'h, D. Le"'
Autor:
Bellec, E., Ghoneim, D., Gallo, A., Jacques, V. L. R., Gonzalez-Vallejo, I., Ortega, L., Chollet, M., Sinchenko, A., Bolloc'h, D. Le
Ultrafast X-ray diffraction by the LCLS free-electron laser has been used to probe Charge Density Wave (CDW) systems under applied external currents. At sufficiently low currents, CDW wavefronts bend in the direction transverse to the 2k$_F$ wave vec
Externí odkaz:
http://arxiv.org/abs/2309.09899
Autor:
Gallo-Frantz, A., Sinchenko, A. A., Ghoneim, D., Ortega, L., Godard, P., Renault, P. -O., Grigoriev, P., Hadj-Azzem, A., Monceau, P., Thiaudière, D., Bellec, E., Jacques, V. L. R., Bolloc'h, D. Le
The electronic orders appearing in condensed matter systems are originating from the precise arrangement of atoms constituting the crystal as well as their nature. This teneous relationship can lead to highly different phases in condensed matter, and
Externí odkaz:
http://arxiv.org/abs/2306.15712
Publikováno v:
Eur. Phys. J. B (2020) 93: 165
A Charge Density Wave (CDW) submitted to an electric field displays a strong shear deformation because of pinning at the lateral surfaces of the sample. This CDW transverse pinning was recently observed but has received little attention from a theore
Externí odkaz:
http://arxiv.org/abs/2006.08964
Autor:
Bellec, E., Gonzalez-Vallejo, I., Jacques, V. L. R., Sinchenko, A. A., Orlov, A. P., Monceau, P., Leake, S. J., Bolloc'h, D. Le
Publikováno v:
Phys. Rev. B 101, 125122 (2020)
Incommensurate charge density waves (CDW) have the extraordinary ability to display non-Ohmic behavior when submitted to an external field. The mechanism leading to this non trivial dynamics is still not well understood, although recent experimental
Externí odkaz:
http://arxiv.org/abs/1905.03499
Autor:
Vallejo, I. Gonzalez, Gallé, G., Arnaud, B., Scott, S. A., Lagally, M. G., Boschetto, D., Coulon, P. E., Rizza, G., Houdellier, F., Bolloc'h, D. Le, Faure, J.
Publikováno v:
Phys. Rev. B 97, 054302 (2018)
We report on ultrafast electron diffraction on high quality single crystal silicon. The ultrafast dynamics of the Bragg peaks exhibits a giant photo-induced response which can only be explained in the framework of dynamical diffraction theory, taking
Externí odkaz:
http://arxiv.org/abs/1711.06152
We report here on time-resolved x-ray diffraction measurements following femtosecond laser excitation in pure bulk chromium. Comparing the evolution of incommensurate charge-density-wave (CDW) and atomic lattice reflections, we show that, few nanosec
Externí odkaz:
http://arxiv.org/abs/1612.05068
Autor:
Lantz, G., Mansart, B, Grieger, D., Boschetto, D., Nilforoushan, N., Papalazarou, E., Moisan, N., Perfetti, L., Jacques, V. L. R., Bolloc'h, D. Le, Laulhé, C., Ravy, S., Rueff, J. -P., Glover, T. E., Hertlein, M. P., Hussain, Z., Song, S., Chollet, M., Fabrizio, M., Marsi, M.
Publikováno v:
Nature Communications 8: 13917 (2017)
The study of photoexcited strongly correlated materials is attracting growing interest since their rich phase diagram often translates into an equally rich out-of-equilibrium behavior, including non-thermal phases and photoinduced phase transitions.
Externí odkaz:
http://arxiv.org/abs/1608.08904
Autor:
Bolloc'h, D. Le, Sinchenko, A. A., Jacques, V. L. R., Ortega, L., Lorenzo, J. E., Chahine, G., Lejay, ., Monceau, P.
Publikováno v:
Phys. Rev. B 93, 165124 (2016)
We report on sliding Charge Density Wave (CDW) in the quasi two-dimensional TbTe$_3$ system probed by coherent x-ray diffraction combined with {\it in-situ} transport measurements. We show that the non-Ohmic conductivity in TbTe$_3$ is made possible
Externí odkaz:
http://arxiv.org/abs/1602.00873
The use of coherent x-ray beams has been greatly developing for the past decades. They are now used by a wide scientific community to study biological materials, phase transitions in crystalline materials, soft matter, magnetism, strained structures,
Externí odkaz:
http://arxiv.org/abs/1008.5250
Publikováno v:
Eur. Phys. J. B 70 3 (2009) 317-325
We report on the study of a magnetic dislocation in pure chromium. Coherent x-ray diffraction profiles obtained on the incommensurate Spin Density Wave (SDW) reflection are consistent with the presence of a dislocation of the magnetic order, embedded
Externí odkaz:
http://arxiv.org/abs/0910.4252