検索対象:     
報告書番号:
※ 半角英数字
 年 ~ 
 年

Strong longitudinal magnetic fluctuations near critical end point in UCoAl; A $$^{59}$$Co-NMR study

UCoAlにおける臨界終点近傍の強い縦磁気ゆらぎ; $$^{59}$$Co-NMR

野原 弘貴*; 小手川 恒*; 藤 秀樹*; 松田 達磨; 山本 悦嗣; 芳賀 芳範; Fisk, Z.; 大貫 惇睦; 青木 大*; Flouquet, J.*

Nohara, Hiroki*; Kotegawa, Hisashi*; To, Hideki*; Matsuda, Tatsuma; Yamamoto, Etsuji; Haga, Yoshinori; Fisk, Z.; Onuki, Yoshichika; Aoki, Dai*; Flouquet, J.*

We report $$^{59}$$Co-NMR measurements in UCoAl where metamagnetism occurs owing to the enhancement of ferromagnetism by a magnetic field. The metamagnetic transition from a paramagnetic (PM) state to a ferromagnetic state is a first-order transition at low temperatures, but it changes to a crossover at high temperatures on crossing the critical end point (CEP) at $$T_{rm CEP}$$ $$sim$$ 12K. The contrasting behavior between the relaxation rates $$1/T_1$$ and $$1/T_2$$ suggests that the longitudinal magnetic fluctuation of the U moments is strongly enhanced, especially near the CEP.

Access

:

- Accesses

InCites™

:

パーセンタイル:27.01

分野:Physics, Multidisciplinary

Altmetrics

:

[CLARIVATE ANALYTICS], [WEB OF SCIENCE], [HIGHLY CITED PAPER & CUP LOGO] and [HOT PAPER & FIRE LOGO] are trademarks of Clarivate Analytics, and/or its affiliated company or companies, and used herein by permission and/or license.