Zobrazeno 1 - 10
of 219
pro vyhledávání: '"Duncan Ryan A"'
Autor:
Orenstein, Gal, Krapivin, Viktor, Huang, Yijing, Zhan, Zhuquan, Munoz, Gilberto de la Pena, Duncan, Ryan A., Nguyen, Quynh, Stanton, Jade, Teitelbaum, Samuel, Yavas, Hasan, Sato, Takahiro, Hoffmann, Matthias C., Kramer, Patrick, Zhang, Jiahao, Cavalleri, Andrea, Comin, Riccardo, Dean, Mark P. M., Disa, Ankit S., Forst, Michael, Johnson, Steven L., Mitrano, Matteo, Rappe, Andrew M., Reis, David, Zhu, Diling, Nelson, Keith A., Trigo, Mariano
The nature of the "failed" ferroelectric transition in SrTiO3 has been a long-standing puzzle in condensed matter physics. A compelling explanation is the competition between ferroelectricity and an instability with a mesoscopic modulation of the pol
Externí odkaz:
http://arxiv.org/abs/2403.17203
Autor:
Huang, Yijing, Sun, Peihao, Teitelbaum, Samuel W., Li, Haoyuan, Sun, Yanwen, Wang, Nan, Song, Sanghoon, Sato, Takahiro, Chollet, Matthieu, Osaka, Taito, Inoue, Ichiro, Duncan, Ryan A., Shin, Hyun D., Haber, Johann, Zhou, Jinjian, Bernardi, Marco, Gu, Mingqiang, Rondinelli, James M., Trigo, Mariano, Yabashi, Makina, Maznev, Alexei A., Nelson, Keith A., Zhu, Diling, Reis, David A.
We demonstrate that the absorption of femtosecond x-ray pulses can excite quasi-spherical high-wavevector coherent acoustic phonon wavepackets using an all x-ray pump and probe scattering experiment. The time- and momentum-resolved diffuse scattering
Externí odkaz:
http://arxiv.org/abs/2312.16453
Autor:
Orenstein, Gal, Duncan, Ryan A., Munoz, Gilberto A. de la Pena, Huang, Yijing, Krapivin, Viktor, Nguyen, Quynh Le, Teitelbaum, Samuel, Singh, Anisha G., Mankowsky, Roman, Lemke, Henrik, Sander, Mathias, Deng, Yunpei, Arrell, Christopher, Fisher, Ian R., Reis, David A., Trigo, Mariano
Nonequilibrium states of quantum materials can exhibit exotic properties and enable unprecedented functionality and applications. These transient states are inherently inhomogeneous, characterized by the formation of topologically protected structure
Externí odkaz:
http://arxiv.org/abs/2304.00168
Autor:
Nguyen, Quynh L., Duncan, Ryan A., Orenstein, Gal, Huang, Yijing, Krapivin, Viktor, de la Pena, Gilberto, Ornelas-Skarin, Chance, Reis, David A., Abbamonte, Peter, Bettler, Simon, Chollet, Matthieu, Hoffmann, Matthias C., Hurley, Matthew, Kim, Soyeun, Kirchmann, Patrick S., Kubota, Yuya, Mahmood, Fahad, Miller, Alexander, Osaka, Taito, Qu, Kejian, Sato, Takahiro, Shoemaker, Daniel P., Sirica, Nicholas, Song, Sanghoon, Stanton, Jade, Teitelbaum, Samuel W., Tilton, Sean E., Togashi, Tadashi, Zhu, Diling, Trigo, Mariano
We report ultrafast x-ray scattering experiments of the quasi-1D charge density wave (CDW) material (TaSe$_4$)$_2$I following photoexcitation with femtosecond infrared laser pulses. From the time-dependent diffraction signal at the CDW sidebands we i
Externí odkaz:
http://arxiv.org/abs/2210.17483
Autor:
Kim, Soyeun, Lv, Yinchuan, Sun, Xiao-Qi, Zhao, Chengxi, Bielinski, Nina, Murzabekova, Azel, Qu, Kejian, Duncan, Ryan A., Nguyen, Quynh L. D., Trigo, Mariano, Shoemaker, Daniel P., Bradlyn, Barry, Mahmood, Fahad
The lowest-lying fundamental excitation of an incommensurate charge density wave (CDW) material is widely believed to be a massless phason -- a collective modulation of the phase of the CDW order parameter. However, as first pointed out by Lee and Fu
Externí odkaz:
http://arxiv.org/abs/2210.14207
Autor:
Duncan, Ryan A., Romano, Giuseppe, Sledzinska, Marianna, Maznev, Alexei A., Peraud, Jean-Philippe M., Hellman, Olle, Torres, Clivia M. Sotomayor, Nelson, Keith A.
In this study, we use the transient thermal grating optical technique \textemdash a non-contact, laser-based thermal metrology technique with intrinsically high accuracy \textemdash to investigate room-temperature phonon-mediated thermal transport in
Externí odkaz:
http://arxiv.org/abs/1912.06211
Autor:
Huberman, Samuel, Duncan, Ryan A., Chen, Ke, Song, Bai, Chiloyan, Vazrik, Ding, Zhiwei, Maznev, Alexei A., Chen, Gang, Nelson, Keith A.
Wavelike thermal transport in solids, referred to as second sound, has until now been an exotic phenomenon limited to a handful of materials at low temperatures. This has restricted interest in its occurrence and in its potential applications. Throug
Externí odkaz:
http://arxiv.org/abs/1901.09160
Akademický článek
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Autor:
Zajac, Jenna A., Cavanaugh, James T., Baker, Teresa, Duncan, Ryan P., Fulford, Daniel, Girnis, Jaimie, LaValley, Michael, Nordahl, Timothy, Porciuncula, Franchino, Rawson, Kerri S., Saint-Hilaire, Marie, Thomas, Cathi A., Earhart, Gammon M., Ellis, Terry D.
Publikováno v:
In Parkinsonism and Related Disorders December 2022 105:123-127
Autor:
Huberman, Samuel, Chiloyan, Vazrik, Duncan, Ryan A., Zeng, Lingping, Jia, Roger, Maznev, Alexei A., Fitzgerald, Eugene A., Nelson, Keith A., Chen, Gang
Publikováno v:
Phys. Rev. Materials 1, 054601 (2017)
In this work, we demonstrate the correspondence between first principle calculations and experimental measurements of size effects on thermal transport in SiGe alloys. Transient thermal grating (TTG) is used to measure the effective thermal conductiv
Externí odkaz:
http://arxiv.org/abs/1704.01386