Zobrazeno 1 - 10
of 218
pro vyhledávání: '"Averitt, R. D."'
Autor:
de la Torre, A., Seyler, K. L., Buchhold, M., Baum, Y., Zhang, G., Laurita, N. J., Harter, J. W., Zhao, L., Phinney, I., Chen, X., Wilson, S. D., Cao, G., Averitt, R. D., Refael, G., Hsieh, D.
Publikováno v:
Commun. Phys. 5, 35 (2022)
Dynamically driven interacting quantum many-body systems have the potential to exhibit properties that defy the laws of equilibrium statistical mechanics. A widely studied model is the impulsively driven antiferromagnetic Mott insulator, which is pre
Externí odkaz:
http://arxiv.org/abs/2112.08397
Autor:
Lovinger, D. J., Zoghlin, E., Kissin, P., Ahn, G., Ahadi, K., Kim, P., Poore, M., Stemmer, S., Moon, S. J., Wilson, S. D., Averitt, R. D.
Publikováno v:
Phys. Rev. B 102, 085138 (2020)
In this work we investigate single crystal GdTiO$_{3}$, a promising candidate material for Floquet engineering and magnetic control, using ultrafast optical pump-probe reflectivity and magneto-optical Kerr spectroscopy. GdTiO${}_{3}$ is a Mott-Hubbar
Externí odkaz:
http://arxiv.org/abs/2009.10222
Autor:
Lovinger, D. J., Brahlek, M., Kissin, P., Kennes, D. M., Millis, A. J., Engel-Herbert, R., Averitt, R. D.
Publikováno v:
Phys. Rev. B 102, 115143 (2020)
Recent optical conductivity measurements reveal the presence of Hubbard excitons in certain Mott insulators. In light of these results, it is important to revisit the dynamics of these materials to account for excitonic correlations. We investigate t
Externí odkaz:
http://arxiv.org/abs/2009.10219
Autor:
Stoica, V., Puggioni, D., Zhang, J., Singla, R., Dakovski, G. L., Coslovich, G., Seaberg, M. H., Kareev, M., Middey, S., Kissin, P., Averitt, R. D., Chakhalian, J., Wen, H., Rondinelli, J. M., Freeland, J. W.
Ultrashort x-ray pulses can be used to disentangle magnetic and structural dynamics and are accordingly utilized here to study the photoexcitation of NdNiO$_3$ (NNO), a model nickelate exhibiting structural and magnetic dynamics that conspire to indu
Externí odkaz:
http://arxiv.org/abs/2004.03694
Autor:
McLeod, A. S., Zhang, J., Gu, M. Q., Jin, F., Zhang, G., Post, K. W., Zhao, X. G., Millis, A. J., Wu, W., Rondinelli, J. M., Averitt, R. D., Basov, D. N.
The ground state properties of correlated electron systems can be extraordinarily sensitive to external stimuli, such as temperature, strain, and electromagnetic fields, offering abundant platforms for functional materials. We present a metastable an
Externí odkaz:
http://arxiv.org/abs/1910.10361
Autor:
Ron, A., Chaudhary, S., Zhang, G., Ning, H., Zoghlin, E., Wilson, S. D., Averitt, R. D., Refael, G., Hsieh, D.
Publikováno v:
Phys. Rev. Lett. 125, 197203 (2020)
Directly modifying spin exchange energies in a magnetic material with light can enable ultrafast control of its magnetic states. Current approaches rely on tuning charge hopping amplitudes that mediate exchange by optically exciting either virtual or
Externí odkaz:
http://arxiv.org/abs/1910.06376
Akademický článek
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Autor:
Lee, J., Lee, H. J., Averitt, R. D., Trugman, S. A., Demsar, J., Funk, D. J., Hur, N. H., Moritomo, Y., Taylor, A. J., Prasankumar, R. P., Yarotski, D. A.
We have studied the sub-picosecond quasiparticle dynamics in the perovskite manganite La0.7Ca0.3MnO3 and the layered manganite La1.4Sr1.6Mn2O7 using ultrafast optical spectroscopy. We found that for T > TC, initial relaxation proceeds on the time sca
Externí odkaz:
http://arxiv.org/abs/1609.09155
Autor:
Gray, A. X., Hoffmann, M. C., Jeong, J., Aetukuri, N. P., Zhu, D., Hwang, H. Y., Brandt, N. C., Wen, H., Sternbach, A. J., Bonetti, S., Reid, A. H., Kukreja, R., Graves, C., Wang, T., Granitzka, P., Chen, Z., Higley, D. J., Chase, T., Jal, E., Abreu, E., Liu, M. K., Weng, T. -C., Sokaras, D., Nordlund, D., Chollet, M., Lemke, H., Glownia, J., Trigo, M., Zhu, Y., Ohldag, H., Freeland, J. W., Samant, M. G., Berakdar, J., Averitt, R. D., Nelson, K. A., Parkin, S. S. P., Dürr, H. A.
Publikováno v:
Phys. Rev. B 98, 045104 (2018)
Vanadium dioxide, an archetypal correlated-electron material, undergoes an insulator-metal transition near room temperature that exhibits electron-correlation-driven and structurally-driven physics. Using ultrafast optical spectroscopy and x-ray scat
Externí odkaz:
http://arxiv.org/abs/1601.07490
Autor:
Thorsmølle, V. K., Averitt, R. D., Demsar, J., Smith, D. L., Tretiak, S., Martin, R. L., Chi, X., Crone, B. K., Ramirez, A. P., Taylor, A. J.
Publikováno v:
Phys. Rev. Lett. 102, 017401 (2009)
We present a comparative study of ultrafast photo-conversion dynamics in tetracene (Tc) and pentacene (Pc) single crystals and Pc films using optical pump-probe spectroscopy. Photo-induced absorption in Tc and Pc crystals is activated and temperature
Externí odkaz:
http://arxiv.org/abs/0901.2002