検索対象:     
報告書番号:
※ 半角英数字
 年 ~ 
 年
検索結果: 1 件中 1件目~1件目を表示
  • 1

発表形式

Initialising ...

選択項目を絞り込む

掲載資料名

Initialising ...

発表会議名

Initialising ...

筆頭著者名

Initialising ...

キーワード

Initialising ...

使用言語

Initialising ...

発行年

Initialising ...

開催年

Initialising ...

選択した検索結果をダウンロード

論文

$$^{235}$$U nuclear relaxation rates in an itinerant antiferromagnet USb$$_2$$

Baek, S.-H.*; Curro, N. J.*; 酒井 宏典; Bauer, E. D.*; Cooley, J. C.*; Smith, J. L.*

Physical Review B, 81(5), p.054435_1 - 054435_5, 2010/02

 被引用回数:5 パーセンタイル:26.36(Materials Science, Multidisciplinary)

$$^{235}$$U nuclear spin-lattice ($$T_1^{-1}$$) and spin-spin ($$T_2^{-1}$$) relaxation rates in the itinerant antiferromagnet USb$$_2$$ are reported as a function of temperature in zero field. The heating effect from the intense rf pulses that are necessary for the $$^{235}$$U NMR results in unusual complex thermal recovery of the nuclear magnetization which does not allow measuring $$T_1^{-1}$$ directly. By implementing an indirect method, however, we successfully extracted $$T_1^{-1}$$ of the $$^{235}$$U. We find that the temperature dependence of $$T_1^{-1}$$ for both $$^{235}$$U and $$^{121}$$Sb follows the power law ($$propto T^{n}$$) with the small exponent $$n$$ = 0.3 suggesting that the same relaxation mechanism dominates the on-site and the ligand nuclei, but an anomaly at 5 K was observed, possibly due to the change in the transferred hyperfine coupling on the Sb site.

1 件中 1件目~1件目を表示
  • 1