JAEA
  • help
  • PC | SP
  • JP | EN
          
Refine your search：     
Report No.
 - 
Clear All
Search Results: Records 1-3 displayed on this page of 3
  • 1

Presentation/Publication Type

Initialising ...

Refine

Journal/Book Title

Initialising ...

Meeting title

Initialising ...

First Author

Initialising ...

Keyword

Initialising ...

Language

Initialising ...

Publication Year

Initialising ...

Held year of conference

Initialising ...

Save select records

Journal Articles

Pressure-modulated magnetism and negative thermal expansion in the Ho$$_2$$Fe$$_{17}$$ intermetallic compound

Cao, Y.*; Zhou, H.*; Khmelevskyi, S.*; Lin, K.*; Avdeev, M.*; Wang, C.-W.*; Wang, B.*; Hu, F.*; Kato, Kenichi*; Hattori, Takanori; et al.

Chemistry of Materials, 35(8), p.3249 - 3255, 2023/04

https://doi.org/10.1021/acs.chemmater.3c00158
 Times Cited Count：1 Percentile：0(Chemistry, Physical)

Hydrostatic and chemical pressure are efficient stimuli to alter the crystal structure and are commonly used for tuning electronic and magnetic properties in materials science. However, chemical pressure is difficult to quantify and a clear correspondence between these two types of pressure is still lacking. Here, we study intermetallic candidates for a permanent magnet with a negative thermal expansion (NTE). Based on in situ synchrotron X-ray diffraction, negative chemical pressure is revealed in Ho$$_2$$Fe$$_{17}$$ on Al doping and quantitatively evaluated by using temperature and pressure dependence of unit cell volume. A combination of magnetization and neutron diffraction measurements also allowed one to compare the effect of chemical pressure on magnetic ordering with that of hydrostatic pressure. Intriguingly, pressure can be used to control suppression and enhancement of NTE. Electronic structure calculations indicate that pressure affected the top of the majority band with respect to the Fermi level, which has implications for the magnetic stability, which in turn plays a critical role in modulating magnetism and NTE. This work presents a good example of understanding the effect of pressure and utilizing it to control properties of functional materials.

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.

3 (Records 1-3 displayed on this page)
  • 1