JAEA
  • help
  • PC | SP
  • JP | EN
          
Refine your search：     
Report No.
 - 
Clear All
Search Results: Records 1-4 displayed on this page of 4
  • 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

Precise magnetization measurements down to 500 mK using a miniature $$^3$$He cryostat and a closed-cycle $$^3$$He gas handling system installed in a SQUID magnetometer without continuous-cooling functionality

Shimamura, Kazutoshi*; Wajima, Hiroki*; Makino, Hayato*; Abe, Satoshi*; Haga, Yoshinori; Sato, Yoshiaki*; Kawae, Tatsuya*; Yoshida, Yasuo*

Japanese Journal of Applied Physics, 61(5), p.056502_1 - 056502_7, 2022/05

https://doi.org/10.35848/1347-4065/ac5bb0
 Times Cited Count：1 Percentile：17.38(Physics, Applied)

Journal Articles

Non-Fermi liquid behavior in nonlinear susceptibility in Pr$$_{0.05}$$La$$_{0.95}$$Pb$$_3$$

Kawae, Tatsuya*; Koga, Mikito*; Sato, Yoshiaki*; Makiyama, Shun*; Inagaki, Yuji*; Tateiwa, Naoyuki; Fujiwara, Tetsuya*; Suzuki, Hiroyuki*; Kitai, Tetsuo*

JPS Conference Proceedings (Internet), 3, p.012030_1 - 012030_6, 2014/06

https://doi.org/10.7566/JPSCP.3.012030

We measure the temperature dependence of the nonlinear susceptibility $${chi}_3$$ in Pr$$_{0.05}$$La$$_{0.95}$$Pb$$_3$$. $${chi}_3$$ reflects the fluctuation of the quadrupolar moments. Non-Fermi liquid behavior of $${chi}_3$$ with $$lnT$$-dependence is detected below 2.5 K, suggesting that the screening of the quadrupolar moments is responsible for the anomalous behavior at low temperatures. These results provide a direct evidence for the crucial role of the quadrupolar moments in Pr$$_{0.05}$$La$$_{0.95}$$Pb$$_3$$.

Journal Articles

Nonlinear susceptibility measurement for quadrupolar response in a dilute $${Gamma}_3$$ non-Kramers doublet system Pr$$_{0.05}$$La$$_{0.95}$$Pb$$_{3}$$

Kawae, Tatsuya*; Koga, Mikito*; Sato, Yoshiaki*; Makiyama, Shun*; Inagaki, Yuji*; Tateiwa, Naoyuki; Fujiwara, Tetsuya*; Suzuki, Hiroyuki*; Kitai, Tetsuo*

Journal of the Physical Society of Japan, 82(7), p.073701_1 - 073701_4, 2013/07

https://doi.org/10.7566/JPSJ.82.073701
 Times Cited Count：10 Percentile：55.98(Physics, Multidisciplinary)

We measure the temperature dependence of the nonlinear susceptibility $${chi}_3$$, which reflects the fluctuation of quadrupolar moments in, Pr$$_{0.05}$$La$$_{0.95}$$Pb$$_{3}$$ which a $${Gamma}_3$$ non-Kramers doublet in the crystal-electric-field ground state to provide evidence of the quadrupolar Kondo effect. Non-Fermi liquid behavior of $${chi}_3$$ with a - ln $$T$$ dependence is detected in the [100] and [110] directions below $$T$$ $${approx}$$ 2.5 K, suggesting the screening of quadrupolar moments. In contrast, $${chi}_3$$ in the [111] direction becomes constant below $$T$$ $${approx}$$ 3 K. The observed features indicate that a low-lying $${Gamma}_3$$ doublet plays a crucial role in the anomalous properties of Pr$$_x$$La$$_{1-x}$$Pb$$_3$$.

Journal Articles

Pressure-induced valence change in the rare earth metals; The Case of praseodymium

Tateiwa, Naoyuki; Nakagawa, Akitoshi*; Fujio, Kazuhiko*; Kawae, Tatsuya*; Takeda, Kazuyoshi*

Journal of Alloys and Compounds, 408-412, p.244 - 247, 2006/02

https://doi.org/10.1016/j.jallcom.2005.04.032
 Times Cited Count：2 Percentile：21.85(Chemistry, Physical)

The rare earth metal praseodymium (Pr) transforms from the d-fcc crystal structure (Pr-III) to $$alpha$$-U one (Pr-IV) at 20 GPa with a large volume collapse ($${Delta}V/V$$ = 0.16), which is associated with the valence change of the Pr ion. The two 4f electrons in the Pr ion is supposed to be itinerant in the Pr-IV phase. In order to investigate the electronic state of the phase IV, we performed the high-pressure electrical resistance measurement using the diamond anvil cell up to 32 GPa. In the Pr-IV phase, the temperature dependence of the resistance shows an upward negative curvature, suggestting the narrow quasiparticle band of the 4f electrons near the Fermi energy. A new phase boundary is found at $$T_0$$ in the Pr-IV phase. From the temperature and magnetic field dependences of the resistance at 26 GPa, the ground state of the Pr-IV phase is suggested to be magnetic. Several possibilities for the origin of $$T_0$$ are discussed.

4 (Records 1-4 displayed on this page)
  • 1