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Emergence of High-Order Deformation in Rotating Transfermium Nuclei: A Microscopic Understanding.
Phys Rev Lett
July 2024
State Key Laboratory of Nuclear Physics and Technology, School of Physics, Peking University, Beijing 100871, China.
Article Synopsis
- The study explores the rotational properties of transfermium nuclei using advanced theoretical methods that account for pairing correlations and deformations in a comprehensive way.
- The findings accurately reproduce the kinematic and dynamic moments of inertia for specific isotopes without any tuning of parameters, relying on a well-defined universal density functional.
- Notably, the research reveals that octupole deformation plays a crucial role in the differing rotational behaviors of isotopes ^{252}No and ^{254}No, suggesting that only focusing on hexacontetrapole deformation could be misleading in understanding these nuclei.
Octupole moment driven free charge generation in partially chlorinated subphthalocyanine for planar heterojunction organic photodetectors.
Nat Commun
June 2024
Department of Chemistry and Centre for Processable Electronics, Imperial College London, London, W12 0BZ, UK.
In this study, high-performance organic photodetectors are presented which utilize a pristine chlorinated subphthalocyanine photoactive layer. Optical and optoelectronic analyses indicate that the device photocurrent is primarily generated through direct charge generation within the chlorinated subphthalocyanine layer, rather than exciton separation at layer interfaces. Molecular modelling suggests that this direct charge generation is facilitated by chlorinated subphthalocyanine high octupole moment (-80 DÅ), which generates a 200 meV shift in molecular energetics.
View Article and Find Full Text PDFHigher harmonics in planar Hall effect induced by cluster magnetic multipoles.
Nat Commun
October 2022
Center for Correlated Electron Systems, Institute for Basic Science (IBS), Seoul, 08826, Korea.
Article Synopsis
- Antiferromagnetic (AFM) materials are gaining interest for their potential in spintronics and unique topological properties, but identifying their spin configurations is difficult due to a lack of net magnetization.
- The study demonstrates the effectiveness of the planar Hall effect (PHE) in detecting cluster magnetic multipoles in a strained film of NdIrO (NIO-227), artificially inducing various multipoles like dipoles and octupoles.
- Results show that each multipole creates unique PHE oscillation patterns under magnetic field rotation, with a nonlinear dependence of planar Hall conductivity linked to the magnetic response of octupoles, paving the way for advancements in octupole-based AFM spintronics.
Thermodynamic nonequilibrium effects in bubble coalescence: A discrete Boltzmann study.
Phys Rev E
September 2022
School of Physics, Beijing Institute of Technology, Beijing 100081, China.
The thermodynamic nonequilibrium (TNE) effects in a coalescence process of two initially static bubbles under thermal conditions are investigated by a discrete Boltzmann model. The spatial distributions of the typical nonequilibrium quantity, i.e.
View Article and Find Full Text PDFEvidence of Quadrupole and Octupole Deformations in ^{96}Zr+^{96}Zr and ^{96}Ru+^{96}Ru Collisions at Ultrarelativistic Energies.
Phys Rev Lett
January 2022
Department of Chemistry, Stony Brook University, Stony Brook, New York 11794, USA.
In the hydrodynamic model description of heavy-ion collisions, the elliptic flow v_{2} and triangular flow v_{3} are sensitive to the quadrupole deformation β_{2} and octupole deformation β_{3} of the colliding nuclei. The relations between v_{n} and β_{n} have recently been clarified and were found to follow a simple parametric form. The STAR Collaboration has just published precision v_{n} data from isobaric ^{96}Ru+^{96}Ru and ^{96}Zr+^{96}Zr collisions, where they observe large differences in central collisions v_{2,Ru}>v_{2,Zr} and v_{3,Ru}
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