Zobrazeno 1 - 10
of 45
pro vyhledávání: '"Hallman, Kent"'
Autor:
Brahms, Christian, Zhang, Lin, Shen, Xiao, Bhattacharya, Utso, Recasens, Maria, Osmond, Johann, Grass, Tobias, Chhajlany, Ravindra W., Hallman, Kent A., Haglund, Richard F., Pantelides, Sokrates T., Lewenstein, Maciej, Travers, John C., Johnson, Allan S.
The nature of the insulator-to-metal phase transition in vanadium dioxide (VO2) is one of the longest-standing problems in condensed-matter physics. Ultrafast spectroscopy has long promised to determine whether the transition is primarily driven by t
Externí odkaz:
http://arxiv.org/abs/2402.01266
Autor:
Johnson, Allan S., Pérez-Salinas, Daniel, Siddiqui, Khalid M., Kim, Sungwon, Choi, Sungwook, Volckaert, Klara, Majchrzak, Paulina E., Ulstrup, Søren, Agarwal, Naman, Hallman, Kent, Haglund Jr., Richard F., Günther, Christian M., Pfau, Bastian, Eisebitt, Stefan, Backes, Dirk, Maccherozzi, Francesco, Fitzpatrick, Ann, Dhesi, Sarnjeet, Gargiani, Pierluigi, Valvidares, Manuel, Artrith, Nongnuch, de Groot, Frank, Choi, Hyeongi, Jang, Dogeun, Katoch, Abhishek, Kwon, Soonnam, Park, Sang Han, Kim, Hyunjung, Wall, Simon E.
Publikováno v:
Nature Physics 2022
Using light to control transient phases in quantum materials is an emerging route to engineer new properties and functionality, with both thermal and non-thermal phases observed out of equilibrium. Transient phases are expected to be heterogeneous, e
Externí odkaz:
http://arxiv.org/abs/2202.08585
Autor:
Johnson, Allan S., Conesa, Jordi Valls, Vidas, Luciana, Perez-Salinas, Daniel, Günther, Christian M., Pfau, Bastian, Hallman, Kent A., Haglund Jr, Richard F., Eisebitt, Stefan, Wall, Simon
Publikováno v:
Science Advances 7, eabf1386 (2021)
The critical properties of functional materials and nanoscale devices often originate from the coexistence of different thermodynamic phases and / or oxidization states, but sample makeup is seldom completely known a priori. Coherent diffractive imag
Externí odkaz:
http://arxiv.org/abs/2008.11992
Achieving ultrafast all-optical switching in a silicon waveguide geometry is a key milestone on the way to an integrated platform capable of handling the increasing demands for higher speed and higher capacity for information transfer. Given the weak
Externí odkaz:
http://arxiv.org/abs/2007.02812
Autor:
Vidas, Luciana, Schick, Daniel, Martínez, Elías, Perez-Salinas, Daniel, Ramos-Álvarez, Alberto, Cichy, Simon, Batlle-Porro, Sergi, Johnson, Allan S., Hallman, Kent, Haglund Jr., Richard F., Wall, Simon
Publikováno v:
Physical Review X 10, 031047 (2020)
Ultrafast phase transitions induced by femtosecond light pulses present a new opportunity for manipulating the properties of materials. Understanding how these transient states are different from, or similar to, their thermal counterparts is key to d
Externí odkaz:
http://arxiv.org/abs/1810.06912
Phase-change materials (PCMs) have emerged as promising active elements in silicon (Si) photonic systems. In this work, we design, fabricate, and characterize a hybrid Si-PCM optical modulator. By integrating vanadium dioxide (a PCM) within a Si phot
Externí odkaz:
http://arxiv.org/abs/1708.04297
Autor:
Vidas, Luciana, Günther, Christian M., Miller, Timothy A., Pfau, Bastian., Schneider, Michael, Guehrs, Erik, Marvel, Robert E., Hallman, Kent A., Haglund Jr, Richard F., Eisebitt, Stefan, Wall, Simon
Publikováno v:
Nano Letters 18, 3449 (2018)
Nanoscale phase coexistence and inhomogeneity are ubiquitous in correlated electron materials, existing in doped Mott insulators, manganites, and high-temperature superconductors. The small length scales and lack of contrast mechanisms make it extrem
Externí odkaz:
http://arxiv.org/abs/1612.07998
Publikováno v:
Phys. Rev. B 95, 125105 (2017)
The debate about whether the insulating phases of vanadium dioxide (VO2) can be described by band theory or must be described by a theory of strong electron correlations remains unresolved even after decades of research. Energy-band calculations usin
Externí odkaz:
http://arxiv.org/abs/1606.03162
Akademický článek
Tento výsledek nelze pro nepřihlášené uživatele zobrazit.
K zobrazení výsledku je třeba se přihlásit.
K zobrazení výsledku je třeba se přihlásit.
Akademický článek
Tento výsledek nelze pro nepřihlášené uživatele zobrazit.
K zobrazení výsledku je třeba se přihlásit.
K zobrazení výsledku je třeba se přihlásit.