Article
Nanoscience & Nanotechnology
Zaira Alibay, Daniel Olsen, Prithwish Biswas, Cody England, Feiyu Xu, Pankaj Ghildiyal, Min Zhou, Michael R. Zachariah
Summary: This study demonstrates that nanoscale aluminum/manganese oxide can be rapidly heated and controlled for ignition under microwave radiation. Detailed analysis of the materials' properties and mechanisms revealed that the electric field is the dominant mechanism in microwave ignition, and the addition of an oxidizer acts as both a microwave susceptor and an ignition driver.
ACS APPLIED NANO MATERIALS
(2022)
Review
Physics, Multidisciplinary
Rocio Borrego-Varillas, Matteo Lucchini, Mauro Nisoli
Summary: Since the first demonstration of attosecond pulses, measurement techniques have been introduced for the temporal characterization of these pulses and for investigating ultrafast dynamics in atoms, molecules, and solids. These attosecond spectroscopic tools, combined with sophisticated theoretical methods, have allowed the unraveling and investigation of previously unobserved physical processes. The development of new spectroscopic techniques is enabling the study, understanding, and control of coupled electron-nuclear dynamics in increasingly complex systems.
REPORTS ON PROGRESS IN PHYSICS
(2022)
Article
Materials Science, Multidisciplinary
Jing Wang, Yuanyuan Huang, Zhen Lei, Yayan Xi, Wanyi Du, Xueqin Cao, Yanqing Ge, Lipeng Zhu, Yixuan Zhou, Xinlong Xu
Summary: In this study, the spontaneous polarization and dynamical photoresponse of ferroelectric SnS nanosheets were noncontact optically characterized. The primary mechanism for THz emission was identified as shift current, and it was found to depend on the spontaneous polarization direction of the nanosheets. Furthermore, the polarization angle of the pump light could modulate the amplitude and phase of the THz wave, resulting in tunable ellipticity and orientation angle.
Article
Astronomy & Astrophysics
Brent M. Randol, Errol J. Summerlin, Jeewoo Park
Summary: Many aspects of solar energetic particles (SEPs), including their acceleration mechanism, are not well understood. Energetic neutral atoms (ENAs) have been recently explored as remote probes of SEPs and their acceleration. This article presents a model that includes the upstream component of a coronal mass ejection (CME)-driven shock to better understand the flux of ENAs at 1 astronomical unit (au). The results show that including the upstream component significantly increases the flux of ENAs at 1 au for assumed parameters in the observed energy range.
ASTROPHYSICAL JOURNAL
(2023)
Article
Physics, Multidisciplinary
Stefan Meier, Jonas Heimerl, Peter Hommelhoff
Summary: Even a small number of electrons can have strong interactions when confined in a small space-time dimension, leading to electron-electron correlations that can reduce noise. By analyzing laser-emitted electrons and applying energy filtering, researchers demonstrated strong anticorrelations and reduced shot noise in pulsed electron beams. This study also provided insights into how strong laser fields influence electron correlations.
Article
Chemistry, Multidisciplinary
Piyush Agarwal, Rohit Medwal, Abhishek Kumar, Hironori Asada, Yasuhiro Fukuma, Rajdeep Singh Rawat, Marco Battiato, Ranjan Singh
Summary: The phase reversal of terahertz spin current induced by a femtosecond light pulse demonstrates a new paradigm for ultra-low-power hybrid electronics and photonics, enabled by the interplay of charge, spin, thermal, and optical signals.
ADVANCED FUNCTIONAL MATERIALS
(2021)
Article
Geosciences, Multidisciplinary
P. S. Szabo, A. R. Poppe, H. Biber, A. Mutzke, J. Pichler, N. Jaggi, A. Galli, P. Wurz, F. Aumayr
Summary: The porosity of the Moon's regolith affects its interaction with solar wind protons, and simulations suggest a globally averaged porosity of 0.85+(0.15)(-0.14) for the uppermost regolith layers. These results highlight the importance of regolith porosity for understanding lunar soil properties and its interaction with impacting ions.
GEOPHYSICAL RESEARCH LETTERS
(2022)
Article
Astronomy & Astrophysics
Gang Li, Albert Y. Y. Shih, Robert C. C. Allen, George C. C. Ho, Christina M. S. Cohen, Mihir Desai, Maher A. A. Dayeh, Glenn M. M. Mason
Summary: We investigate the production and propagation of energetic neutral atoms (ENAs) in solar flares and coronal mass ejection (CME)-driven shocks. By calculating the time profiles and fluence spectra of solar ENAs at 1 au, we find significant differences between ENAs produced downstream at CME-driven shocks and ENAs produced at large-scale post-flare loops in solar flares. Our calculations suggest that solar ENAs can be used as a new tool to study the acceleration process of solar energetic particles (SEPs) and to differentiate between the acceleration sites in large SEP events, namely the large loops in solar flares and downstream of CME-driven shocks.
ASTROPHYSICAL JOURNAL
(2023)
Article
Nanoscience & Nanotechnology
Pankaj Ghildiyal, Xiang Ke, Prithwish Biswas, Giorgio Nava, Joseph Schwan, Feiyu Xu, Dylan J. Kline, Haiyang Wang, Lorenzo Mangolini, Michael R. Zachariah
Summary: Using plasma-synthesized ultrafine Si nanoparticles as an energetic filler in biocidal nanothermite composites shows potential to increase energy density by approximately 21% and enhance combustion performance. However, at nSi loadings higher than 8%, slower burning characteristics of nSi and sintering effects lead to an overall degradation of combustion behavior in the composites.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Chemistry, Physical
Jingle Wei, Yuexia Wu, Ruihua Pu, Limin Shi, Jiaming Jiang, Juan Du, Zhiqian Guo, Yifan Huang, Weimin Liu
Summary: The anti-Kasha process allows for the development of novel applications using high-energy excited states. Research has shown that dual-emission fluorophores can be achieved by slowing down the internal conversion from the S-2 state to the S-1 state in the anti-Kasha mechanism.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2021)
Article
Chemistry, Physical
Hui Fang, Michael J. Wilhelm, Danielle L. Kuhn, Zachary Zander, Hai-Lung Dai, George A. Petersson
Summary: The electronic and vibrational spectra of TSPP were computationally studied, showing good agreement with experimental measurements. In addition, an infrared absorption feature in the excited states was discovered and used to investigate the vibrational dynamics of the excited state.
JOURNAL OF CHEMICAL PHYSICS
(2023)
Article
Astronomy & Astrophysics
G. M. Mason, M. E. Greenspan, S. G. Kanekal, R. A. Leske, M. D. Looper, J. E. Mazur, R. A. Mewaldt
Summary: The detection of energetic neutral hydrogen atoms (ENAs) >0.8 MeV in several large solar energetic particle events observed between 1997 and 2004 suggests that these particles penetrate Earth's magnetic field and undergo charge exchange in the upper atmosphere. These findings indicate that the ENAs associated with large solar flares may be generated as coronal mass ejections move through the corona.
ASTROPHYSICAL JOURNAL
(2021)
Article
Multidisciplinary Sciences
Chi Li, Mengxue Guan, Hao Hong, Ke Chen, Xiaowei Wang, He Ma, Aiwei Wang, Zhenjun Li, Hai Hu, Jianfeng Xiao, Jiayu Dai, Xiangang Wan, Kaihui Liu, Sheng Meng, Qing Dai
Summary: This research demonstrates coherent ultrafast photoemission from a single quantized energy level of a carbon nanotube, which has a narrow energy spread and the potential to achieve subangstrom spatial resolution and femtosecond temporal resolution for electron probe.
Article
Chemistry, Physical
Tamar Goldzak, Xiao Wang, Hong-Zhou Ye, Timothy C. Berkelbach
Summary: In this study, the performance of spin-component-scaled second-order Møller-Plesset perturbation theory (SCS-MP2) for the prediction of lattice constant, bulk modulus, and cohesive energy of simple covalent and ionic semiconductors and insulators was investigated. The results show that SCS-MP2 and the simpler scaled opposite-spin MP2 (SOS-MP2) method yield significantly improved predictions compared to MP2, with mean absolute errors smaller than those of leading density functionals. The reparameterization of the spin scaling parameters suggests good transferability and potential applications to surface chemistry on insulators.
JOURNAL OF CHEMICAL PHYSICS
(2022)
Article
Chemistry, Multidisciplinary
O. Bhorade, B. Deconihout, I. Blum, S. Moldovan, J. Houard, A. Normand, K. Jagtap, M. More, A. Vella
Summary: Researchers prepared nano-field emitters from bulk LaB6 and found that they can be used as ultrafast electron sources, exhibiting different field emission characteristics in different regions and under different conditions. Results show that LaB6 nanoneedles have better performance compared to metallic ultra-fast field emitters in time-resolved transmission electron microscopy.
NANOSCALE ADVANCES
(2023)
Article
Chemistry, Physical
Wei-long Liu, Will P. Bassett, James M. Christensen, Dana D. Dlott
JOURNAL OF PHYSICAL CHEMISTRY A
(2015)
Article
Chemistry, Physical
Yuanxi Fu, Dana D. Dlott
JOURNAL OF PHYSICAL CHEMISTRY C
(2015)
Article
Chemistry, Physical
Bruno G. Nicolau, Natalia Garcia-Rey, Bogdan Dryzhakov, Dana D. Dlott
JOURNAL OF PHYSICAL CHEMISTRY C
(2015)
Article
Chemistry, Physical
Natalia Garcia Rey, Dana D. Dlott
JOURNAL OF PHYSICAL CHEMISTRY C
(2015)
Article
Multidisciplinary Sciences
Sizhu You, Ming-Wei Chen, Dana D. Dlott, Kenneth S. Suslick
NATURE COMMUNICATIONS
(2015)
Article
Physics, Applied
James M. Christensen, Alexandr A. Banishev, Dana D. Dlott
JOURNAL OF APPLIED PHYSICS
(2014)
Article
Physics, Applied
Alexandr A. Banishev, Dana D. Dlott
JOURNAL OF APPLIED PHYSICS
(2014)
Article
Chemistry, Physical
Brandt C. Pein, Dana D. Dlott
JOURNAL OF PHYSICAL CHEMISTRY A
(2014)
Article
Chemistry, Physical
Christopher M. Berg, Yuxiao Sun, Dana D. Dlott
JOURNAL OF PHYSICAL CHEMISTRY B
(2014)
Article
Biochemistry & Molecular Biology
Shinji Kajimoto, Nak-Hyun Seong, Hiroshi Fukumura, Dana D. Dlott
PHOTOCHEMICAL & PHOTOBIOLOGICAL SCIENCES
(2014)
Proceedings Paper
Physics, Applied
W. L. Shaw, R. A. Williams, E. L. Dreizin, D. D. Dlott
18TH APS-SCCM AND 24TH AIRAPT, PTS 1-19
(2014)
Proceedings Paper
Physics, Applied
W. L. Shaw, A. D. Curtis, A. A. Banishev, D. D. Dlott
18TH APS-SCCM AND 24TH AIRAPT, PTS 1-19
(2014)
Proceedings Paper
Physics, Applied
A. D. Curtis, D. D. Dlott
18TH APS-SCCM AND 24TH AIRAPT, PTS 1-19
(2014)
Proceedings Paper
Physics, Applied
Y. Fu, J. M. Christensen, D. D. Dlott
18TH APS-SCCM AND 24TH AIRAPT, PTS 1-19
(2014)
Proceedings Paper
Physics, Applied
C. M. Berg, D. D. Dlott
18TH APS-SCCM AND 24TH AIRAPT, PTS 1-19
(2014)