Zobrazeno 1 - 10
of 1 644
pro vyhledávání: '"HO, K. M."'
Publikováno v:
Applied Physics Letters vol. 74, 3933 (1999)
Photonic crystals of close-packed arrays of air spheres in a dielectric background of titania have been fabricated with a novel ceramic technique. Unlike previous methods, ordering of the spheres and the formation of the titania network are performed
Externí odkaz:
http://arxiv.org/abs/2111.04905
Autor:
Song, B. Q., Xu, Mingyu, Borisov, Vladislav, Palasyuk, Olena, Wang, C. Z., Valenti, Roser, Canfield, Paul C., Ho, K. M.
Publikováno v:
Phys. Rev. Materials 5, 094802 (2021)
The discovery of the 1144-phase, e.g. CaKFe$_4$As$_4$, creates opportunities to build novel intermetallics with alternative stacking of two parent compounds. Here we formalize the idea by defining a class of bulk crystalline solids with $A$-$B$ stack
Externí odkaz:
http://arxiv.org/abs/2103.15344
Molecular dynamics simulations using an interatomic potential developed by artificial neural network deep machine learning are performed to study the local structural order in Al90Tb10 metallic glass. We show that more than 80% of the Tb-centered clu
Externí odkaz:
http://arxiv.org/abs/2008.12316
Autor:
Yang, X., Song, B., Vaswani, C., Luo, L., Sundahl, C., Mootz, M., Kang, J-H., Yao, Y., Ho, K-M, Perakis, I. E., Eom, C. B., Wang, J.
We report on an ultrafast photoinduced phase transition with a strikingly long-lived Martensitic anomaly driven by above-threshold single-cycle terahertz (THz) pulses in Nb$_3$Sn. A non-thermal, THz-induced depletion of low frequency conductivity ind
Externí odkaz:
http://arxiv.org/abs/2008.08732
Autor:
Liu, Z., Vaswani, C., Luo, L., Cheng, D., Yang, X., Zhao, X., Yao, Y., Song, Z., Brenes, R., Kim, R., Jean, J., Bulovic, V., Yan, Y., Ho, K. -M., Wang, J.
Publikováno v:
Phys. Rev. B 101, 115125 (2020)
The coherence of collective modes, such as phonons, and their modulation of the electronic states are long sought in complex systems, which is a cross-cutting issue in photovoltaics and quantum electronics. In photovoltaic cells and lasers based on m
Externí odkaz:
http://arxiv.org/abs/2002.08283
An interatomic potential for Al-Tb alloy around the composition of Al90Tb10 was developed using the deep neural network (DNN) learning method. The atomic configurations and the corresponding total potential energies and forces on each atom obtained f
Externí odkaz:
http://arxiv.org/abs/2001.06762
Autor:
Vaswani, C., Wang, L. -L., Mudiyanselage, D. H., Li, Q., Lozano, P. M., Gu, G., Cheng, D., Song, B., Luo, L., Kim, R. H. J., Huang, C., Liu, Z., Mootz, M., Perakis, I. E., Yao, Y., Ho, K. M., Wang, J.
Publikováno v:
Phys. Rev. X 10, 021013 (2020)
A grand challenge underlies the entire field of topology-enabled quantum logic and information science: how to establish topological control principles driven by quantum coherence and understand the time-dependence of such periodic driving? Here we d
Externí odkaz:
http://arxiv.org/abs/1912.02121
Autor:
Liu, Z., Vaswani, C., Yang, X., Zhao, X., Yao, Y., Song, Z., Cheng, D., Shi, Y., Luo, L., Mudiyanselage, D. H., Huang, C., Park, J. -M., Kim, R. H. J., Zhao, J., Yan, Y., Ho, K. -M., Wang, J.
Publikováno v:
Phys. Rev. Lett. 124, 157401 (2020)
We discover hidden Rashba fine structure in CH$_3$NH$_3$PbI$_3$ and demonstrate its quantum control by vibrational coherence through symmetry-selective vibronic (electron-phonon) coupling. Above a critical threshold of a single-cycle terahertz pump f
Externí odkaz:
http://arxiv.org/abs/1905.12373
Molecular dynamics simulations were performed to study the effects of Si solute on the glass formation and crystallization of Pd liquid. Pure Pd sample prepared by quenching process with cooling rate of $10^{13}$ K/s can be in an amorphous state but
Externí odkaz:
http://arxiv.org/abs/1810.03261
Autor:
Yang, X., Zhao, X., Vaswani, C., Sundahl, C., Yao, Y., Mootz, M., Orth, P. P., Kang, J. H., Perakis, I. E., Wang, C-Z, Ho, K-M, Eom, C. B., Wang, J.
Publikováno v:
Phys. Rev. B 99, 094504 (2019)
We report the low-energy electrodynamics of a moderately clean A15 superconductor (SC) following ultrafast excitation to understand and manipulate terahertz (THz) quasi--particle (QP) transport by tuning pump photoexcitation of from competing orders.
Externí odkaz:
http://arxiv.org/abs/1808.06731