Zobrazeno 1 - 10
of 37
pro vyhledávání: '"Guru Khalsa"'
Publikováno v:
Physical Review X, Vol 11, Iss 2, p 021067 (2021)
The Raman effect, inelastic scattering of light by lattice vibrations (phonons), produces an optical response closely tied to a material’s crystal structure. Here we show that resonant optical excitation of IR and Raman phonons gives rise to a Rama
Externí odkaz:
https://doaj.org/article/09b2cf485a8345089abef61779d0c246
Publikováno v:
Nature Communications, Vol 7, Iss 1, Pp 1-9 (2016)
At sufficiently strong magnetic fields and low temperatures, electrons assume a quasi-one-dimensional quantum state that is challenging to observe. Here, Bhattacharya et al. report on electron transport in lightly-doped single crystals of SrTiO3deep
Externí odkaz:
https://doaj.org/article/e683e004a5a140e4aa9ec33983d52850
Publikováno v:
The International Conference on Ultrafast Phenomena (UP) 2022.
Raman scattering via ionic dipoles is a forgotten pathway that produces giant optical nonlinearities in crystals when a field is IR resonant, offering ultrafast control of optical symmetry and constants from THz to visible frequencies.
Publikováno v:
The International Conference on Ultrafast Phenomena (UP) 2022.
We predict a new pathway for ultrafast coherent control of fully symmetric Raman phonons, allowing manipulation of sign, magnitude, and temporal response, enabled by the nonlinear lattice polarizability and a two-terahertz-pulse excitation sequence.
Autor:
Tianlun Yu, John Wright, Guru Khalsa, Betül Pamuk, Celesta S. Chang, Yury Matveyev, Xiaoqiang Wang, Thorsten Schmitt, Donglai Feng, David A. Muller, Huili Grace Xing, Debdeep Jena, Vladimir N. Strocov
Publikováno v:
Science Advances
Description
Addressing design of future quantum devices, the study uncovers electronic structure of a superconductor-semiconductor interface.
The electronic structure of heterointerfaces is a pivotal factor for their device functionality. W
Addressing design of future quantum devices, the study uncovers electronic structure of a superconductor-semiconductor interface.
The electronic structure of heterointerfaces is a pivotal factor for their device functionality. W
Autor:
Michael A. Hayward, Guru Khalsa, Subhadip Mallick, Maria Batuk, Joke Hadermann, Alexandra S. Gibbs, Jeffrey Z Kaaret, Weiguo Zhang, P. Shiv Halasyamani, Nicole A. Benedek
Solid state compounds which exhibit non-centrosymmetric crystal structures are of great interest due to the physical properties they can exhibit. The ‘hybrid improper’ mechanism – in which two non-polar distortion modes couple to, and stabilize
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::69b8a4b0a3628a1b38a793d2be92f552
https://ora.ox.ac.uk/objects/uuid:fa8b2e80-5093-4799-8311-3b317f764eaf
https://ora.ox.ac.uk/objects/uuid:fa8b2e80-5093-4799-8311-3b317f764eaf
Autor:
Subhadip, Mallick, Guru, Khalsa, Jeffrey Z, Kaaret, Weiguo, Zhang, Maria, Batuk, Alexandra S, Gibbs, Joke, Hadermann, P Shiv, Halasyamani, Nicole A, Benedek, Michael A, Hayward
Publikováno v:
Dalton transactions (Cambridge, England : 2003). 50(42)
Solid state compounds which exhibit non-centrosymmetric crystal structures are of great interest due to the physical properties they can exhibit. The 'hybrid improper' mechanism - in which two non-polar distortion modes couple to, and stabilize, a fu
Publikováno v:
Journal of physics. Condensed matter : an Institute of Physics journal. 34(3)
We use theory and first-principles calculations to investigate how structural changes induced by ultrafast optical excitation of infrared-active phonons change with hydrostatic pressure in LaAlO
Autor:
John Wright, Lucy Raymond, Debdeep Jena, David A. Muller, Dacen Waters, Guru Khalsa, Rosalyn Koscica, Randall M. Feenstra, Felix Lüpke, Celesta S. Chang, Huili Grace Xing
Publikováno v:
Physical Review Materials. 5
Accessing unexplored crystal growth conditions often reveals new regimes of physical behavior. In this work, performing molecular beam epitaxy growth of the technologically important superconductor NbN at temperatures greater than 1000 ${}^{\ensurema
Autor:
Nicole A. Benedek, Kevin Olsson, Martin Rodriguez-Vega, Guru Khalsa, Bin Fang, Gregory A. Fiete, Xiaoqin Li, Jiaming He, Jeongheon Choe, Jianshi Zhou
Spin-phonon interaction is an important channel for spin and energy relaxation in magnetic insulators. Understanding this interaction is critical for developing magnetic insulator-based spintronic devices. Quantifying this interaction in yttrium iron
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fd8ce6950137bc0677eef2b89195dd84