High spin states in ^174Re are investigated via the ^152Sm（^27 AL,5nγ）^174Re reaction and γ - γ coincidence relationships are analysed carefully. A new band is identified due to its spectroscopic connection with ...High spin states in ^174Re are investigated via the ^152Sm（^27 AL,5nγ）^174Re reaction and γ - γ coincidence relationships are analysed carefully. A new band is identified due to its spectroscopic connection with the known π1/2^-[541] × ν1/2^-[521] band. This band is proposed to be the ground-state band built on the π1/2^-[541]× ,ν5/2^-[512] configuration in view of the low-lying intrinsic states in the neighbouring odd-mass nuclei. It is of particular interesting that the new band exhibits a phenomenon of low-spin signature inversion, providing a new situation for theoretical investigations.展开更多
The properties of the high spin states of the neutron-rich 98-102Sr and 100-104Zr isotopes have been st udied using the projected shell model. In particular, the upbending phenomenon is investigated for these isotopes...The properties of the high spin states of the neutron-rich 98-102Sr and 100-104Zr isotopes have been st udied using the projected shell model. In particular, the upbending phenomenon is investigated for these isotopes along the yrast line. The results show that the occurrence of upbending phenomenon is attributed to the band crossing between ground state band and 2-qp neutron band having configuration 2vh11/2[-3/2, 5/2], K = 1. Furthermore, the neutron two-quasi-particle structure of side bands in 98SR-102Zr is discussed in this paper.展开更多
Spin regulation of active sites is sparking much interest in boosting oxygen electrocatalytic performance.However,in amorphous electrocatalysts,the design principle of spin regulation to promote catalytic activity rem...Spin regulation of active sites is sparking much interest in boosting oxygen electrocatalytic performance.However,in amorphous electrocatalysts,the design principle of spin regulation to promote catalytic activity remains unclear.Herein,we synthesized a series of heteroatom-doped amorphous transition metal sulfides with regulated spin states using a one-step hydrothermal process.Especially in Modoped CoS,the spin state of Co^(2+)was successfully modulated to the low-spin state,which could optimize the adsorption free energy of various intermediates,improving the oxygen reduction reaction kinetics.The fabricated Zn-air batteries(ZABs)delivered good cycle stability(over 100 h).The large ZAB(100 cm^(2))exhibited a high discharge voltage(1.25 V under 0.5 A)and a superior overall mass-energy density(93 W h kg^(−1)),which illuminated a 2.5-m light-emitting-diode ribbon for over seven days.This work provides new insight into the mechanism of engineering spin states in amorphous materials for oxygen electrocatalysis.展开更多
The N≈Z nuclei in the mass A^80 region has been researched because of an abundance of nuclear structure phenomena.The projected shell model(PSM)was adopted to investigate the structure of high spin state in proton-ri...The N≈Z nuclei in the mass A^80 region has been researched because of an abundance of nuclear structure phenomena.The projected shell model(PSM)was adopted to investigate the structure of high spin state in proton-rich 74,76,78Kr isotopes including yrast spectra,moment of inertia,electric quadrupole transitions and the behavior of single particle.The calculated results are in good agreement with available data and the shape coexistence in low-spin is also discussed.展开更多
文摘High spin states in ^174Re are investigated via the ^152Sm（^27 AL,5nγ）^174Re reaction and γ - γ coincidence relationships are analysed carefully. A new band is identified due to its spectroscopic connection with the known π1/2^-[541] × ν1/2^-[521] band. This band is proposed to be the ground-state band built on the π1/2^-[541]× ,ν5/2^-[512] configuration in view of the low-lying intrinsic states in the neighbouring odd-mass nuclei. It is of particular interesting that the new band exhibits a phenomenon of low-spin signature inversion, providing a new situation for theoretical investigations.
基金Supported by the Natural Science Foundation of China under Grant Nos. 10975051, 10979024, 10905021the Natural Science Foundation of Zhejiang province, China under Grant No. Y6090210the Natural Science Foundation of Huzhou under Grant No. 2010YZll
文摘The properties of the high spin states of the neutron-rich 98-102Sr and 100-104Zr isotopes have been st udied using the projected shell model. In particular, the upbending phenomenon is investigated for these isotopes along the yrast line. The results show that the occurrence of upbending phenomenon is attributed to the band crossing between ground state band and 2-qp neutron band having configuration 2vh11/2[-3/2, 5/2], K = 1. Furthermore, the neutron two-quasi-particle structure of side bands in 98SR-102Zr is discussed in this paper.
基金the National Natural Science Foundation of China(52122107 and 972224)the Postdoctoral International Exchange Program(YJ20200139).
文摘Spin regulation of active sites is sparking much interest in boosting oxygen electrocatalytic performance.However,in amorphous electrocatalysts,the design principle of spin regulation to promote catalytic activity remains unclear.Herein,we synthesized a series of heteroatom-doped amorphous transition metal sulfides with regulated spin states using a one-step hydrothermal process.Especially in Modoped CoS,the spin state of Co^(2+)was successfully modulated to the low-spin state,which could optimize the adsorption free energy of various intermediates,improving the oxygen reduction reaction kinetics.The fabricated Zn-air batteries(ZABs)delivered good cycle stability(over 100 h).The large ZAB(100 cm^(2))exhibited a high discharge voltage(1.25 V under 0.5 A)and a superior overall mass-energy density(93 W h kg^(−1)),which illuminated a 2.5-m light-emitting-diode ribbon for over seven days.This work provides new insight into the mechanism of engineering spin states in amorphous materials for oxygen electrocatalysis.
基金supported by the National Natural Science Foundation of China(Grant Nos.11305059,11275067,11275068 and 11135005)
文摘The N≈Z nuclei in the mass A^80 region has been researched because of an abundance of nuclear structure phenomena.The projected shell model(PSM)was adopted to investigate the structure of high spin state in proton-rich 74,76,78Kr isotopes including yrast spectra,moment of inertia,electric quadrupole transitions and the behavior of single particle.The calculated results are in good agreement with available data and the shape coexistence in low-spin is also discussed.
