High-spin states in 128I

The high-spin states in ¹²⁸I have been studied by using in-beam γ-ray spectroscopy with the ¹²⁴Sn(⁷Li, 3n)¹²⁸I reaction at beam energies of 25, 28 and 42 MeV. A new level scheme including 20 new levels and 27 new γ-transitions for ¹²⁸I has been established preliminarily.     

Lifetime measurements in chiral nucleus 130Cs

The level lifetimes in partner bands of ¹³⁰Cs have been measured using the Doppler Shift Attenuation method. The high-spin states of ¹³⁰Cs were populated via fusion evaporation reaction ¹²⁴Sn(¹¹B, 5n)¹³⁰Cs at a beam energy of 65 MeV. The absolute M1 and E2 transition probabilities have been deduced. The results indicate that the partner bands of ¹³⁰Cs manifest the chiral properties.     

第一性原理模拟U在Gd2Zr2O7烧绿石中的固溶

采用第一性原理密度泛函理论模拟U在Gd₂Zr₂O₇烧绿石中的固溶,在低浓度U掺杂时,Gd₂Zr₂O₇烧绿石保持烧绿石结构;随着U掺杂浓度增加,Gd₂(Zr_{2-y}U_y)O₇和(Gd_{2-y}U_y)Zr₂O₇体系的晶格常数发生线性变化．计算结果表明,由于总能较低,U原子更偏向于替代无序换位后Gd₂Zr₂O₇晶格中B位的Gd原子．     

High Spin States in Odd--Odd 160Tm Nucleus

High-spin states of ^160Tm are studied by the ^146 Nd（^19F, 5n） reaction at a beam energy of 102 MeV. The previously known πh11/2 ＋ vi13/2 yrast band and πh11/2 ＋ vh9/2 side band are confirmed. The level scheme is enriched and more low-lying levels are observed. A new side band is observed and assigned as the favoured signature partner of πd3/2 ＋ vi13/2. The spin of this band is assigned with the energy level systematics. It is pointed out that the B （M1）/B （E2） ratios increase rapidly at the high frequency approaching the second crossing in the π h11/2 ＋ vi13/2 braid, which is closely related to the alignment gain of the aligned i13/2 quasineutron.