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Being inspired by a recent study [V. Dimitriadis et al. Phys. Rev. B \textbf{92}, 064420 (2015)], we study the finite temperature magnetic properties of the spherical nanoparticles with core-shell structure including quenched (i) surface…

Statistical Mechanics · Physics 2017-06-28 E. Vatansever , Y. Yuksel

Engineering the structure of core-shell colloidal semiconductor nanoparticles (CSNPs) is attractive due to the potential to enhance photo-induced charge transfer (PICT) and induce favourable optical and electronic properties. Nonetheless,…

Materials Science · Physics 2022-12-12 Xinyuan Li , Mengyao Su , Yi-Chi Wang , Meng Xu , Minman Tong , Sarah J. Haigh , Jiatao Zhang

We investigate the shell structure of spherical nuclear bubbles in simple phenomenological shell model potentials. The shell correction energies for doubly magic bubbles may be as large as -40 MeV and probably imply a very long lifetime…

Nuclear Theory · Physics 2009-10-30 Klaus Dietrich , Krzysztof Pomorski

Angle-integrated cross-section measurements of the $^{56}$Ni(d,n) and (d,p) stripping reactions have been performed to determine the single-particle strengths of low-lying excited states in the mirror nuclei pair $^{57}$Cu-$^{57}$Ni…

High-entropy alloys (HEAs) composed of multiple principal elements have been shown to offer improved radiation resistance over their elemental or dilute-solution counterparts. Using NiCoFeCrMn HEA as a model, here we introduce carbon and…

Materials Science · Physics 2023-01-03 Zhengxiong Su , Jun Ding , Miao Song , Li Jiang , Tan Shi , Zhiming Li , Sheng Wang , Fei Gao , Di Yun , Chenyang Lu , En Ma

Observations of core-collapse supernovae (SNe) have revealed the presence of extensive mixing of radioactive material in SN ejecta. The mixing of radioactive material, mostly freshly synthesized Ni, is not complete, which leads to a…

Astrophysics · Physics 2009-10-31 J. M. Blondin , K. J. Borkowski , S. P. Reynolds

Simulating collision cascades and radiation damage poses a long-standing challenge for existing interatomic potentials, both in terms of accuracy and efficiency. Machine-learning based interatomic potentials have shown sufficiently high…

Computational Physics · Physics 2023-08-15 Jiahui Liu , Jesper Byggmastar , Zheyong Fan , Ping Qian , Yanjing Su

Mesoporous silica nanoparticles (MSNPs) have many potential applications in biomedical fields. However, when MSNPs are exposed to plasma, protein adsorption leads to opsonization and decreases blood circulation time. A new multifunctional…

Tissues and Organs · Quantitative Biology 2021-05-24 Sandra Sanchez-Salcedo , Maria Vallet-Regi , Sophia Allaf Shanin , Carlotta A. Glackin , Jeffrey I. Zink

Recent measurements of the cosmic ray (CR) antiproton flux have been shown to challenge existing CR propagation models. It was shown that the reacceleration models designed to match secondary to primary nuclei ratios (e.g., boron/carbon)…

Astrophysics · Physics 2009-11-07 I. V. Moskalenko , A. W. Strong , S. G. Mashnik , J. F. Ormes

The effective interaction GXPF1 for shell-model calculations in the full $pf$ shell is tested in detail from various viewpoints such as binding energies, electro-magnetic moments and transitions, and excitation spectra. The semi-magic…

Nuclear Theory · Physics 2009-11-10 Michio Honma , Takaharu Otsuka , B. Alex Brown , Takahiro Mizusaki

The prospects of extracting new physics signals in coherent elastic neutrino--nucleus scattering (CE$\nu$NS) processes are limited by the precision with which the underlying nuclear structure physics, embedded in the weak nuclear form…

Nuclear Theory · Physics 2023-04-27 N. Van Dessel , V. Pandey , H. Ray , N. Jachowicz

We present results of 2D axisymmetric core-collapse supernova simulations, employing the FORNAX code, of nine progenitor models spanning 12 to 25 M$_{\odot}$ and evolved over a 20,000-km grid. We find that four of the nine models explode…

High Energy Astrophysical Phenomena · Physics 2018-03-30 David Vartanyan , Adam Burrows , David Radice , M. Aaron Skinner , Joshua Dolence

In the present work, we have reported comprehensive study of the $sd$-shell nuclei Si and P with neutron number varying from $N = 9$ to $N = 20$ using the microscopic effective valence shell interactions, namely, N3LO, JISP16 and DJ16A.…

Nuclear Theory · Physics 2023-04-05 Priyanka Choudhary , Praveen C. Srivastava

We explore the variation in single star 15-30 $\rm{M}_{\odot}$, non-rotating, solar metallicity, pre-supernova MESA models due to changes in the number of isotopes in a fully-coupled nuclear reaction network and adjustments in the mass…

Solar and Stellar Astrophysics · Physics 2016-12-14 R. Farmer , C. E. Fields , I. Petermann , Luc Dessart , M. Cantiello , B. Paxton , F. X. Timmes

We construct one dimensional steady-state models of accretion disks produced by the tidal disruption of a white dwarf (WD) by a neutron star (NS) or stellar mass black hole (BH). At radii r <~ 1e8.5-1e9 cm the midplane density and…

High Energy Astrophysical Phenomena · Physics 2015-05-28 Brian D. Metzger

Nanoparticles (NPs) which combine several magnetic phases offer wide perspectives for cutting edge applications because of the high modularity of their magnetic properties. Besides the addition of the magnetic characteristics intrinsic to…

Decay of $^{210}$Po compound nucleus formed in light and heavy-ion induced fusion reactions has been analyzed simultaneously using a consistent prescription for fission barrier and nuclear level density incorporating shell correction and…

Nuclear Experiment · Physics 2015-09-30 K. Mahata , S. Kailas , S. S. Kapoor

We have performed atomistic simulations for helical multi-shell (HMS) Cu nanowires and nanotubes. Our investigation on HMS Cu nanowires and nanotubes has revealed some physical properties that were not dealt in previous works that…

Materials Science · Physics 2009-11-07 Jeong Won Kang , Ho Jung Hwang

Non-spherical structure in massive stars at the point of iron core collapse can have a qualitative impact on the properties of the ensuing core-collapse supernova explosions and the multi-messenger signals they produce. Strong perturbations…

Solar and Stellar Astrophysics · Physics 2021-11-03 C. E. Fields , S. M. Couch

Using microemulsion methods, CoO-Pt core-shell nanoparticles (NPs), with diameters of nominally 4 nm, were synthesized and characterized by high-resolution transmission electron microscopy (HRTEM) and a suite of x-ray spectroscopies,…

Mesoscale and Nanoscale Physics · Physics 2014-03-25 Adriana Zelenakova , Vladimir Zelenak , Stefan Michalik , Jozef Kovac , Mark W. Meisel