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Properties of the πh9/2 × vi13/2 Oblate Band in ^188Tl

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Chinese Physics Letters 2006年第7期23卷 1727-1730页

作者：马龙周小红邢烨炳张玉虎郭应祥雷相国谢成营 Oshima M. Toh Y. Koizumi M. Osa A. Hatsukawa Y. sugawara M. Institute of Modern Physics Chinese Academy of Sciences Lanzhou 730000 japan Atomic Energy Research Institute Tokai Ibaraki 319-1195 Japan Chiba Institute of Technology Narashino Chiba 275-0023 Japan

High spin states in ^188Tl have been investigated via the 157Gd（^35Cl,4n） reaction at beam energy of 170 MeV. A rotational band built on the πh9/2 × vi13/2 configuration with oblate deformation has been established. Considering the similarity between the band structure observed in odd-odd Tl nuclei, spin values have been tentatively proposed for the new band in ^188Tl. The πh9/2 × vi13/2 oblate band in ^188Tl shows low-spin signature inversion, and it can be interpreted qualitatively by the two quasiparticle plus rotor model including a j-dependent p-n residual interaction.

关键词： πh9/2νi13/2 Oblate 188Tl interpreted qualitatively

Epitaxial fabrication of AgTe monolayer on Ag(111)and the sequential growth of Te film

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Frontiers of physics 2021年第6期16卷 125-131页

作者： Haoyu Dong Le Lei Shuya Xing jianfeng Guo Feiyue Cao Shangzhi Gu Yanyan Geng Shuo Mi Hanxiang Wu Yan jun Li Yasuhiro sugawara Fei Pang Wei ji Rui Xu Zhihai Cheng Beijing Key Laboratory of Optoelectronic Functional Materials&Micro-nano Devices Department of PhysicsRenmin University of ChinaBeijing 100872China Department of Applied Physics Graduate School of EngineeringOsaka University2-1 YamadaokaSuitaOsaka 565-0871Japan

Transition-metal chalcogenides(TMCs)materials have attracted increasing interest both for fundamental research and industrial *** all these materials,two-dimensional(2D)compounds with honeycomb-like structure possess exotic electronic ***,we report a systematic study of TMC monolayer AgTe fabricated by direct depositing Te on the surface of Ag(111)and *** intrinsic defects are observed and studied by scanning tunneling microscopy,indicating that there are two kinds of AgTe domains and they can form gliding ***,the monolayer AgTe can serve as the template for the following growth of Te ***,some Te atoms are observed in the form of chains on the top of the bottom Te *** findings in this work might provide insightful guide for the epitaxial growth of 2D materials for study of novel physical properties and for future quantum devices.

关键词： AgTe monolayer Te film epitaxial growth scanning tunneling microscopy two-dimensional materials transition-metal chalcogenides

High-spin states in ^(190)Pt

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Chinese Physics C 2008年第1期32卷 31-33页

作者：马龙周小红 M.Oshima Y.Toh 张玉虎郭应祥雷相国 M.Koizumi A.Osa T.Hayakawa Y.Hatsukawa T.Shizuma M.sugawara Institute of Modern Physics Chinese Academy of Sciences japan Atomic Energy Research Institute.Tokai Ibaraki 319-1195 Japan japan Atomic Energy Research Institute Tokai Ibaraki 319-1195Japan Chiba Institute of Technology Narashino Chiba 275-0023Japan

The level structure of ^19Opt has been studied experimentally using the ^176yb （^18O, 4n） reaction at beam energies of 88 and 95 MeV. γ-γ-t coincidence measurements were carried out. Based on the analysis of T-T coincidence relationships, the level scheme of ^190Pt is extended to high-spin states. A new structure built on the 3413.6 keV 14＋ state has been observed, and the ＂vi13/2^-2 vh9/2^-1 vj （j = P3/2 or f5/2） configuration is tentatively assigned to it.

关键词： γ-γcoincidence γ-ray spectroscopy DCO ratio

Study of Collective Rotational Bands in 179Pt

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IMP & HIRFL Annual Report 2005年 47-48页

作者： M. Oshima T. Toh A. Osa M. Koizumi j. Katakura Y. Hatsukawa M. Matsuda M. sugawara japan Atomic Energy Research Institute TokaiIbaraki 319-1195Japan Chib Insitue of Technology NarashinoChiba 275-0023Japan

In-beamγ-ray spectroscopic experiment for the deformed odd-A nucleus 179Pt has been performed via the 149Sm(35Cl, p4n) reaction at beam energy of 180 MeV. The 35Cl beam was provided by the tandem accelerator at the japan Atomic Energy Research Institute (jAERI). The target was an isotopic 149Sm foil of 1. 5 mg /cm2 thickness with a 5 me/cm2 Pb backing. Based on the measured results, three rotational bands

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形变双奇核^(178)Ir转动带能级的旋称反转

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高能物理与核物理 2000年第12期24卷 1123-1130页

作者：张玉虎 T.Hayakawa M.Oshima Y.Toh j.Katakura Y.Hatsukawa M.Matsuda N.Shinohara T.Ishii H.Kusakari M.sugawara T.Komatsubara 中国科学院近代物理研究所兰州730000 japan Atomic Energy Research Institute Chiba University Chiba Institute of Technology Institute of Physics and Tandem Accelerator Center

利用１５２Ｓｍ（３１Ｐ，５ｎγ）１７８Ｉｒ反应产生并研究了双奇核１７８Ｉｒ的高自旋态．实验中进行了１７８Ｉｒ核的在束 γ测量，包括γ射线的激发函数测量、Ｘ－γ和γ－γ符合测量．首次建立了双奇核１７８Ｉｒ基于πｈ９／２... 详细信息

利用１５２Ｓｍ（３１Ｐ，５ｎγ）１７８Ｉｒ反应产生并研究了双奇核１７８Ｉｒ的高自旋态．实验中进行了１７８Ｉｒ核的在束 γ测量，包括γ射线的激发函数测量、Ｘ－γ和γ－γ符合测量．首次建立了双奇核１７８Ｉｒ基于πｈ９／２νｉ１３／２和πｈ１１／２νｉ１３／２准粒子组态上的转动带能级纲图．发现在低自旋区，两个转动带能级均出现旋称反转．对此核区半退耦带的旋称反转作了简要的分析和讨论．

关键词：在束γ谱学形变双奇核转动带旋称反转

Toplayer-dependent crystallographic orientation imaging in the bilayer two-dimensional materials with transverse shear microscopy

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Frontiers of physics 2021年第5期16卷 165-172页

作者： Sabir Hussain Rui Xu Kunqi Xu Le Lei Shuya Xing jianfeng Guo Haoyu Dong Adeel Liaqat Rashid Iqbal Muhammad Ahsan Iqbal Shangzhi Gu Feiyue Cao Yan jun Li Yasuhiro sugawara Fei Pang Wei ji Liming Xie Shanshan Chen Zhihai Cheng Beijing Key Laboratory of Optoelectronic Functional Materials&Micro-nano Devices Department of PhysicsRenmin University of ChinaBeijing100872China CAS Key Laboratory of Standardization and Measurement for Nanotechnology CAS Center for Excellence in NanoscienceNational Center for Nanoscience and TechnologyBeijing100190China Key Laboratory of Inorganic Functional Materials and Devices Shanghai Institute of CeramicsChinese Academy of SciencesShanghai200050China University of Chinese Academy of Sciences Beijing100039China Department of Applied Physics Graduate School of EngineeringOsaka University2-1 YamadaokaSuitaOsaka565-0871Japan

Nanocontact properties of two-dimensional(2D)materials are closely dependent on their unique nanomechanical systems,such as the number of atomic layers and the supporting ***,we report a direct observation of toplayer-dependent crystallographic orientation imaging of 2D materials with the transverse shear microscopy(TSM).Three typical nanomechanical systems,MoS_(2) on the amorphous SiO_(2)/Si,graphene on the amorphous SiO_(2)/Si,and MoS_(2) on the crystallized Al_(2)O_(3),have been investigated in *** experimental observation reveals that puckering behaviour mainly occurs on the top layer of 2D materials,which is attributed to its direct contact adhesion with the AFM ***,the result of crystallographic orientation imaging of MoS_(2)/SiO_(2)/Si and MoS_(2)/Al_(2)O_(3) indicated that the underlying crystalline substrates almost do not contribute to the puckering effect of 2D *** work directly revealed the top layer dependent puckering properties of 2D material,and demonstrate the general applications of TSM in the bilayer 2D systems.

关键词： 2D materials toplayer-dependent crystallographic orientation imaging nanomechanical contact properties transverse shear microscopy

Identification of a New Four-Quasiparticle State in Odd-Odd 186Au

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Chinese Physics Letters 2012年第2期29卷 63-66页

作者： LI Shi-Cheng SHI Yue ZHANG Yu-Hu ZHOU Xiao-Hong XU Fu-Rong FANG Yong-De LIU Min-Liang DING Bing GUO Song LI Guang-Shun ZHOU Hou-Bing M.Oshima Y.Toh M.Koizumi A.Osa A.Kimura Y.Hatsukawa H.Hayakawa T.Shizuma j.Katakura M.Matsuda T.Morikawa M.sugawara H.Kusakari Institute of Modern Physics Chinese Academy of SciencesLanzhou 730000 Graduate University of Chinese Academy of Sciences Beijing 100049 School of Physics and State Key Laboratory of Nuclear Physics and TechnologyPeking UniversityBeijing 100871 japan Atomic Energy Agency TokaiIbaraki 319-1195Japan Department of Physics Kyushu UniversityFukuoka812-81Japan Chiba Institute of Technology NarashinoChiba 275-0023Japan Chiba University Inage-kuChiba 263-8512Japan

The high-spin level structure of 186 Au is re-investigated by means of in-beam γ-ray spectroscopy via the 172 Yb(19 F,5nγ )186 Au *** oblate bands previously reported are revised and extended to higher-spin states.A new Iπ =(20+) excited state has been identified and assigned to the πh-111/2 (×) vi-213/2h-19/2 *** total Routhian surface and cranked shell model calculations suggest that the πh-111/2 (×) vi-213/2h-19/2 band in 186Au has a non-axial deformation.

关键词： configuration deformation reaction

^(179)Au的1/2[660](πi_(13/2))转动带

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高能物理与核物理 2004年第2期28卷 148-151页

作者：宋立涛周小红郭应祥孙志宇 M.Oshima T.Toh A.Osa M.Koizumi j.Katakura Y.Hatsukawa M.Matsuda M.sugawara 中国科学院近代物理研究所兰州730000 japan Atomic Energy Research Institute Chiba Institute of Technology

利用能量为 16 4— 180MeV的 3 5Cl束流 ,通过重离子核反应 14 9Sm(3 5Cl ,5n)研究了 179Au的高自旋态能级结构 .实验进行了γ射线的激发函数、X γ和γ γ t符合测量 .基于对实验测量结果的分析 ,首次建立了 179Au的 1 2 [6 6 0 ](πi1... 详细信息

利用能量为 16 4— 180MeV的 3 5Cl束流 ,通过重离子核反应 14 9Sm(3 5Cl ,5n)研究了 179Au的高自旋态能级结构 .实验进行了γ射线的激发函数、X γ和γ γ t符合测量 .基于对实验测量结果的分析 ,首次建立了 179Au的 1 2 [6 6 0 ](πi13 2 )转动带 .结合已有的实验数据 ,着重讨论了奇AAu核中1 2 [6 6 0 ](πi13 2 )

关键词：重离子核反应转动带能级纲图 γ射线质子数激发能原子核物理

Study of Collective Rotational Bands in ^(179)Pt

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近代物理研究所和兰州重离子加速器实验室年报：英文版 2005年第1期 47-48页

作者： Xu Yanbing Zhou Xiaohong Zhang Yuhu Song Litao Guo Yingxiang Sun Zhiyu M. Oshima T. Toh A. Osa M. Koizumi j. Katakura Y. Hatsukawa M. Matsuda M. sugawara 不详 japan Atomic Energy Research Institute Tokai lbaraki 319 1195 Japan. Chib lnsitue of Technology Narashino Chiba 275-0023 Japan.

关键词：集体转动带日本原子能研究所串列加速器光谱实验实测结果奇A核线变形能量束