Investigation on quantum state of one-dimensional helium-3 fluid formed in nanochannels

纳米通道中形成的一维氦 3 流体的量子态研究

• 批准号: 23540404
• 负责人: MATSUSHITA Taku
• 金额: $ 3.33万
• 依托单位: Nagoya University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2011
• 资助国家: 日本
• 起止时间: 2011 至 2013
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-23540404/
• 关键词: 一次元フェルミ系; 朝永ラッティンジャー液体; ヘリウム薄膜; ナノ細孔; 核磁気共鳴; 1次元フェルミ流体; ヘリウム３

To examine the low-temperature quantum state of dilute 3He adsorbed in straight nanochannels coated with 4He film, a pulsed NMR measuring system was arranged, and the susceptibility and nuclear relaxation were measured on the dilute 3He. Obtained results such as density dependence of the Fermi temperature and density of states strongly suggest that very dilute 3He less than 0.7% coverage falls into the degenerate state at low temperatures, as a genuine one-dimensional fluid with a degree of motional freedom only along the channel axis. From nuclear relaxation measurements on pure 3He film in the nanochannels, microscopic information on atomic motion in the film, including rapid interlayer particle exchange which has not been recognized so far, was newly obtained.

为了研究吸附在涂有 4He 薄膜的直纳米通道中的稀 3He 的低温量子态，设置了脉冲核磁共振测量系统，测量了稀 3He 的磁化率和核弛豫。 获得的结果，例如费米温度和态密度的密度依赖性，强烈表明覆盖率小于 0.7% 的非常稀的 3He 在低温下会陷入简并态，作为真正的一维流体，仅沿着通道轴。 通过对纳米通道中纯 3He 薄膜的核弛豫测量，新获得了薄膜中原子运动的微观信息，包括迄今为止尚未认识到的快速层间粒子交换。

项目成果

Atomic motion in low-coverage helium film adsorbed in FSM nanochannels

吸附在 FSM 纳米通道中的低覆盖氦膜中的原子运动

• 作者: T. Matsushita; A. Kuze; R. Kawai; M. Hieda;N. Wada
• 通讯作者: N. Wada

2次元4He薄膜KT超流動転移と渦パラメータの研究

2D 4He薄膜KT超流体转变和涡流参数研究

• 作者: 田中春奈;山口寛;檜枝光憲;松下琢;和田信雄
• 通讯作者: 和田信雄

Structural phase transition in one-dimensional bond-alternating antiferromagnet F5PNN

一维键交替反铁磁体 F5PNN 中的结构相变

• DOI: 10.1088/1742-6596/400/3/032016
• 发表时间: 2012
• 作者: T. Harada; K. Shimizu; T. Matsushita; N. Wada;Y. Hosokoshi
• 通讯作者: Y. Hosokoshi

QCM Study on 2D Vortex in Superfluid 4He and 3He-4He Mixture Films

超流 4He 和 3He-4He 混合膜中二维涡流的 QCM 研究

• 发表时间: 2012
• 作者: M. Hieda; T. Oda; T. Matsushita;N. Wada
• 通讯作者: N. Wada

States of 4He film adsorbed in novel nanopores

4He薄膜吸附在新型纳米孔中的状态

• 发表时间: 2014
• 作者: M. Okamoto; K. Nitta; T. Inaba; K. Okude; D. Bansho; A. Fujiwara; M. Hieda; T. Matsushita;N. Wada
• 通讯作者: N. Wada