Zobrazeno 1 - 10
of 84
pro vyhledávání: '"De la Pena G"'
Autor:
Fechner, M., Först, M., Orenstein, G., Krapivin, V., Disa, A. S., Buzzi, M., von Hoegen, A., de la Pena, G., Nguyen, Q. L, Mankowsky, R., Sander, M., Lemke, H., Deng, Y., Trigo, M., Cavalleri, A.
Many functionally relevant ferroic phenomena in quantum materials can be manipulated by driving the lattice coherently with optical and terahertz pulses. New physical phenomena and non-equilibrium phases that have no equilibrium counterpart have been
Externí odkaz:
http://arxiv.org/abs/2301.08703
Autor:
Krapivin, Viktor, Gu, Mingqiang, Hickox-Young, D., Teitelbaum, S. W., Huang, Y., de la Peña, G., Zhu, D., Sirica, N., Lee, M. -C., Prasankumar, R. P., Maznev, A., Nelson, K. A., Chollet, M., Rondinelli, James M., Reis, D. A., Trigo, M.
Publikováno v:
Phys. Rev. Lett. 129, 127601 (2022)
We use an x-ray free-electron laser to study the ultrafast lattice dynamics following above band-gap photoexcitation of the incipient ferroelectric potassium-tantalate, \kto. % We use ultrafast near-UV (central wavelength 266\,nm and 50 fs pulse dura
Externí odkaz:
http://arxiv.org/abs/2201.10769
Autor:
Lee, Min-Cheol, Sirica, N., Teitelbaum, S. W., Maznev, A., Pezeril, T., Tutchton, R., Krapivin, V., de la Pena, G. A., Huang, Y., Zhao, L. X., Chen, G. F., Xu, B., Yang, R., Shi, J., Zhu, J., Yarotski, D. A., Qiu, X. G., Nelson, K. A., Trigo, M., Reis, D. A., Prasankumar, R. P.
Publikováno v:
Phys. Rev. Lett. 128, 155301 (2022)
Using femtosecond time-resolved X-ray diffraction, we investigated optically excited coherent acoustic phonons in the Weyl semimetal TaAs. The low symmetry of the (112) surface probed in our experiment enables the simultaneous excitation of longitudi
Externí odkaz:
http://arxiv.org/abs/2011.07196
Autor:
Guzelturk, B., Winkler, T., Van de Goor, T., Smith, M. D., Bourelle, S. A., Feldmann, S., Trigo, M., Teitelbaum, S., Steinrück, H-G., de la Pena, G. A., Alonso-Mori, R., Zhu, D., Sato, T., Karunadasa, H. I., Toney, M. F., Deschler, F., Lindenberg, A. M.
Publikováno v:
Nature Materials (2021)
Excitation localization involving dynamic nanoscale distortions is a central aspect of photocatalysis, quantum materials and molecular optoelectronics. Experimental characterization of such distortions requires techniques sensitive to the formation o
Externí odkaz:
http://arxiv.org/abs/2011.03103
Autor:
Joe, Y. I., Fang, Y., Lee, S., Sun, S. X. L., de la Peña, G. A., Doriese, W. B., Morgan, K. M., Fowler, J. W., Vale, L. R., Rodolakis, F., McChesney, J. L., Ullom, J. N., Swetz, D. S., Abbamonte, P.
Publikováno v:
Phys. Rev. Applied 13, 034026 (2020)
Resonant soft x-ray scattering (RSXS) is a leading probe of valence band order in materials best known for detecting charge density wave order in the copper-oxide superconductors. One of the biggest limitations on the RSXS technique is the presence o
Externí odkaz:
http://arxiv.org/abs/1907.07864
Akademický článek
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Autor:
Chen, X. M., Miller, A. J., Nugroho, C., de la Pena, G. A., Joe, Y. I., Kogar, A., Brock, J. D., Geck, J., MacDougall, G. J., Cooper, S. L., Fradkin, E., Van Harlingen, D. J., Abbamonte, P.
We report temperature-dependent transport and x-ray diffraction measurements of the influence of Ti hole doping on the charge density wave (CDW) in 1T-Ta(1-x)Ti(x)S(2). Confirming past studies, we find that even trace impurities eliminate the low-tem
Externí odkaz:
http://arxiv.org/abs/1411.6604
Autor:
Joe, Y. I., Chen, X. M., Ghaemi, P., Finkelstein, K. D., de la Peña, G. A., Gan, Y., Lee, J. C. T., Yuan, S., Geck, J., MacDougall, G. J., Chiang, T. C., Cooper, S. L., Fradkin, E., Abbamonte, P.
Superconductivity (SC) in so-called "unconventional superconductors" is nearly always found in the vicinity of another ordered state, such as antiferromagnetism, charge density wave (CDW), or stripe order. This suggests a fundamental connection betwe
Externí odkaz:
http://arxiv.org/abs/1309.4051
Akademický článek
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Autor:
Lee, M. -C., Sirica, N., Teitelbaum, S. W., Maznev, A., Pezeril, Thomas, Tutchton, R., Krapivin, V., de La Pena, G. A., Huang, Y., Zhao, L. X., Chen, G. F., Yang, R., Shi, J., Zhu, J., Yarotski, D. A., Qiu, X. G., Nelson, K. A., Trigo, M., Reis, D. A., Prasankumar, R. P.
Publikováno v:
Physical Review Letters
Physical Review Letters, American Physical Society, 2022, 128, pp.155301. ⟨10.1103/PhysRevLett.128.155301⟩
Physical Review Letters, American Physical Society, 2022, 128, pp.155301. ⟨10.1103/PhysRevLett.128.155301⟩
6 pages, 4 figures for manuscript, and 7 pages and 7 figures for supplemental materials; International audience; Using femtosecond time-resolved X-ray diffraction, we investigate optically excited coherent acoustic phonons in the Weyl semimetal TaAs.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::29f3821cea85034724235eb4f41395e7
https://hal.archives-ouvertes.fr/hal-03369976
https://hal.archives-ouvertes.fr/hal-03369976