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Journal Articles

Strong local moment antiferromagnetic spin fluctuations in V-doped LiFeAs

Xu, Z.*; Dai, G.*; Li, Y.*; Yin, Z.*; Rong, Y.*; Tian, L.*; Liu, P.*; Wang, H.*; Xing, L.*; Wei, Y.*; et al.

npj Quantum Materials (Internet), 5(1), p.11_1 - 11_7, 2020/02

https://doi.org/10.1038/s41535-020-0212-x
 Times Cited Count：4 Percentile：40.81(Materials Science, Multidisciplinary)

Journal Articles

Nagasaki sediments reveal that long-term fate of plutonium is controlled by select organic matter moieties

Lin, P.*; Xu, C.*; Kaplan, D. I.*; Chen, H.*; Yeager, C. M.*; Xing, W.*; Sun, L.*; Schwehr, K. A.*; Yamazaki, Hideo*; Kokubu, Yoko; et al.

Science of the Total Environment, 678, p.409 - 418, 2019/08

https://doi.org/10.1016/j.scitotenv.2019.04.375
 Times Cited Count：13 Percentile：49.32(Environmental Sciences)

Nagasaki sediments containing bomb-derived Pu provided a unique opportunity to explore the long term geochemical behavior of Pu. Through a combination of selective extractions and molecular characterization via electrospray ionization Fourier-transform ion cyclotron resonance mass spectrometry, we determined that 55 $$pm$$ 3% of the $$^{239,240}$$Pu was preferentially associated with more persistent organic matter compounds in Nagasaki sediments, particularly those natural organic matter (NOM) stabilized by Fe oxides. Other organic matter compounds served as a secondary sink of these $$^{239,240}$$Pu (31 $$pm$$ 2% on average), and less than 20% of the $$^{239,240}$$Pu was immobilized by inorganic mineral particles. While present long-term disposal and environmental remediation modeling assume that solubility limits and sorption to mineral surfaces control Pu subsurface mobility, our observations suggest that NOM undoubtedly plays an important role in sequestering Pu. Ignoring the role of NOM in controlling Pu fate and transport is not justified in most environmental systems.

Journal Articles

Band properties of the transitional nucleus $$^{187}$$Pt

Zhou, X. H.*; Xing, Y. B.*; Liu, M. L.*; Zhang, Y. H.*; Guo, Y. X.*; Ma, L.*; Lei, X. G.*; Guo, W. T.*; Oshima, Masumi; Toh, Yosuke; et al.

Physical Review C, 75(3), p.034314_1 - 034314_17, 2007/03

https://doi.org/10.1103/PhysRevC.75.034314
 Times Cited Count：18 Percentile：73.87(Physics, Nuclear)

High-spin states in $$^{187}$$Pt has been studied experimentally by in-beam $$gamma$$-ray spectroscopy. The previously known bands based on the $$nu i_{13/2}, nu 7/2^{-}[503] $$ and $$nu i^{2}_{13/2} nu j$$ configurations have been extended to high-spin states, and new rotational bands associated with the $$nu 3/2^{-}[512]$$ and $$nu 1/2^{-}[521]$$ Nilsson orbits have been identified. The total Routhian surface calculations indicate that the transitional nucleus $$^{187}$$Pt is very soft with respect to $$beta$$ and $$gamma$$ deformations. The band properties have been compared with the systematics observed in neiboring nuclei and have been interpreted within the framework of the cranked shell model.

Journal Articles

Observation of a $$pi rm h_{9/2} bigotimes nu rm i_{13/2}$$ oblate band in $$^{188}$$Tl

Zhou, X. H.*; Ma, L.*; Xing, Y. B.*; Zhang, Y. H.*; Guo, Y. X.*; Lei, X. G.*; Xie, C. Y.*; Oshima, Masumi; Toh, Yosuke; Koizumi, Mitsuo; et al.

European Physical Journal A, 28(3), p.271 - 275, 2006/06

https://doi.org/10.1140/epja/i2006-10060-6
 Times Cited Count：2 Percentile：21.09(Physics, Nuclear)

Excited states in $$^{188}$$Tl have been studied experimentally by in-beam $$gamma$$-ray spectroscopy. A rotational band built on the $$pi rm h_{9/2} bigotimes nu rm i_{13/2}$$ configuration with oblate deformation has been established for $$^{188}$$Tl. Based on the structure systematics of the oblate $$pi rm h_{9/2} bigotimes nu rm i_{13/2}$$ bands in heavier odd-odd Tl nuclei, we have tentatively proposed spin values for the new band in $$^{188}$$Tl. The new oblate band 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.

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