Ordering process in sodium nitrite observed by using neutron diffractometry

Hiroyuki Mashiyama, Tatsuki Miyoshi, Takanao Asahi, Hironobu Kasano, Yukio Noda, Hiroyuki Kimura

研究成果: Article査読

抄録

From neutron diffraction data, the nuclear density of sodium nitrite is estimated directly by using a maximum entropy method and is compared with the results of usual least-squares calculations. The obtained nuclear density shows that the disordered NO2 molecule becomes partially ordered in the ferroelectric phase at temperatures just below the transition temperature. However, the density distribution cannot be explained by using a two-Gaussian function, which suggests that the ordering is not a classical stochastic process but a quantum tunneling in a double minima local potential.

本文言語English
ページ(範囲)2515-2518
ページ数4
ジャーナルJournal of the Korean Physical Society
59
31
DOI
出版ステータスPublished - 2011 9 15

ASJC Scopus subject areas

  • 物理学および天文学(全般)

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