More Like this

1. Shell model results for nuclear β−-decay properties of sd-shell nuclei

   https://doi.org/10.1093/ptep/ptaa012  

   Kumar, Anil; Srivastava, Praveen C; Suzuki, Toshio (March 2020, Progress of Theoretical and Experimental Physics)

   Abstract We evaluate the allowed $$\beta^-$$-decay properties of nuclei with $Z = 8$$–$$15$ systematically under the framework of the nuclear shell model using the valence space Hamiltonians derived from modern ab initio methods, such as in-medium similarity renormalization group and coupled-cluster theory. For comparison we also show results obtained with fitted interaction derived from chiral effective field theory and phenomenological universal $sd$-shell Hamiltonian version B interaction. We have performed calculations for O $$\rightarrow$$ F, F $$\rightarrow$$ Ne, Ne $$\rightarrow$$ Na, Na $$\rightarrow$$ Mg, Mg $$\rightarrow$$ Al, Al $$\rightarrow$$ Si, Si $$\rightarrow$$ P, and P $$\rightarrow$$ S transitions. Theoretical results for $B(GT)$, $$\log ft$$ values, and half-lives are discussed and compared with the available experimental data. 

   more » « less
2. Open-Shell Tensor Hypercontraction

   https://doi.org/10.1021/acs.jctc.3c00392  

   Zhao, Tingting; Simons, Megan; Matthews, Devin A. (July 2023, Journal of Chemical Theory and Computation)
3. Hydration-Shell Vibrational Spectroscopy

   https://doi.org/10.1021/jacs.9b02742  

   Ben-Amotz, Dor (June 2019, Journal of the American Chemical Society)
4. Quantum Shell in a Shell: Engineering Colloidal Nanocrystals for a High-Intensity Excitation Regime

   https://doi.org/10.1021/jacs.3c03397  

   Harankahage, Dulanjan; Cassidy, James; Beavon, Jacob; Huang, Jiamin; Brown, Niamh; Berkinsky, David B.; Marder, Andrew; Kayira, Barbra; Montemurri, Michael; Anzenbacher, Pavel; et al (June 2023, Journal of the American Chemical Society)
5. Anelasticity in thin-shell nanolattices

   https://doi.org/10.1073/pnas.2201589119  

   Chen, I-Te; Poblete, Felipe Robles; Bagal, Abhijeet; Zhu, Yong; Chang, Chih-Hao (September 2022, Proceedings of the National Academy of Sciences)

   In this work, we investigate the anelastic deformation behavior of periodic three-dimensional (3D) nanolattices with extremely thin shell thicknesses using nanoindentation. The results show that the nanolattice continues to deform with time under a constant load. In the case of 30-nm-thick aluminum oxide nanolattices, the anelastic deformation accounts for up to 18.1% of the elastic deformation for a constant load of 500 μN. The nanolattices also exhibit up to 15.7% recovery after unloading. Finite element analysis (FEA) coupled with diffusion of point defects is conducted, which is in qualitative agreement with the experimental results. The anelastic behavior can be attributed to the diffusion of point defects in the presence of a stress gradient and is reversible when the deformation is removed. The FEA model quantifies the evolution of the stress gradient and defect concentration and demonstrates the important role of a wavy tube profile in the diffusion of point defects. The reported anelastic deformation behavior can shed light on time-dependent response of nanolattice materials with implication for energy dissipation applications. 

   more » « less