Magnetic moments and g-factors in odd-A Ho isotopes  

作　　者：E.Tabar H.Yakut A.A.Kuliev H.Quliyev G.Hosgor 

机构地区：[1]Physics Department, Sakarya University, 54187 Sakarya, Turkey [2]Biomedical, magnetic and semiconductor materials research center (BIMAYAM), Sakarya University, 54187 Sakarya, Turkey [3]Azerbaijan National Academy of Aviation, Baku, Azerbaijan

出　　处：《Chinese Physics C》2017年第7期52-60,共9页中国物理C（英文版）

基　　金：Supported by Scientific and Technological Research Council of Turkey(TUBITAK)(115F564)

摘　　要：The ground-state magnetic moment, g K factor and quenching spin gyromagnetic ratio have been calculated using the microscopic method based on the Quasiparticle Phonon Nuclear Model（QPNM） for ^155-169 Ho nuclei for the first time. It is shown that the residual spin-spin interactions are responsible for the core polarization,and because of the core polarization the spin gyromagnetic factors are quenched. By considering the core polarization effects, a satisfactory agreement is obtained for the computed ground state g K factor, which gives an intrinsic contribution to the magnetic moments. In order to assess the collective contribution to the magnetic moments, the rotational gyromagnetic factors g R have been also calculated within the cranking approximation using the single particle wave function of the axially symmetric Woods-Saxon potential. For the ground-state magnetic moments of odd-proton ^155-165 Ho nuclei, a good description of the experimental data is obtained with an accuracy of 0.01–0.1μN. From systematic trends, the quenching spin gyromagnetic factor, g K factor and magnetic moment have also been theoretically predicted for167,169 Ho where there is no existing experimental data.The ground-state magnetic moment, g K factor and quenching spin gyromagnetic ratio have been calculated using the microscopic method based on the Quasiparticle Phonon Nuclear Model（QPNM） for ^155-169 Ho nuclei for the first time. It is shown that the residual spin-spin interactions are responsible for the core polarization,and because of the core polarization the spin gyromagnetic factors are quenched. By considering the core polarization effects, a satisfactory agreement is obtained for the computed ground state g K factor, which gives an intrinsic contribution to the magnetic moments. In order to assess the collective contribution to the magnetic moments, the rotational gyromagnetic factors g R have been also calculated within the cranking approximation using the single particle wave function of the axially symmetric Woods-Saxon potential. For the ground-state magnetic moments of odd-proton ^155-165 Ho nuclei, a good description of the experimental data is obtained with an accuracy of 0.01–0.1μN. From systematic trends, the quenching spin gyromagnetic factor, g K factor and magnetic moment have also been theoretically predicted for167,169 Ho where there is no existing experimental data.

关 键 词：deformed odd-A Ho isotopes magnetic moment magnetic g-factors core-polarization QRPA 

分 类 号：O571[理学—粒子物理与原子核物理]