Low-temperature hydrogen absorption in metallic nanocontacts studied by point-contact spectroscopy measurements

被引：2
|
作者：
Takata, H. [1 ]
Islam, M. S. [1 ]
Ienaga, K. [1 ]
Inagaki, Y. [1 ]
Hashizume, K. [2 ]
Kawae, T. [1 ]
机构：
[1] Kyushu Univ, Dept Appl Quantum Phys, Fukuoka 8190395, Japan
[2] Kyushu Univ, Dept Engn Sci, Fukuoka 8168580, Japan
来源：
1ST ASIAN ICMC & CSSJ 50TH ANNIVERSARY CONFERENCE | 2017年 / 897卷
基金：
日本学术振兴会;
关键词：
DIFFUSION;
D O I：
10.1088/1742-6596/897/1/012009
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
We report on hydrogen (H) and deuterium (D) atoms absorption below T = 20 K in metallic palladium (Pd) via quantum tunnelling (QT). When a small bias voltage is applied between Pd nanocontacts that are immersed in liquid H-2 (D-2), the differential conductance spectra measured by point-contact spectroscopy change enormously. The results indicate H (D) absorption in Pd nanocontacts at the temperature where H (D) absorption due to thermal hopping process is not expected, and can be explained by QT. The QT occurs when the energy level of the potential well trapping the H (D) atom coincides with those not trapping the H (D) atom, and is assisted by phonons induced by ballistic electrons.
引用
收藏
页数：5
相关论文
共 50 条
  • [21] LOW CURRENT-DENSITY POINT-CONTACT SPECTROSCOPY BY TRANSVERSE ELECTRON FOCUSING
    NOWACK, A
    HOEVERS, H
    VANKEMPEN, H
    FIZIKA NIZKIKH TEMPERATUR, 1992, 18 (05): : 516 - 519
  • [22] Electronic density of state in valence fluctuating Kondo lattice systems studied by point-contact spectroscopy
    Shiga, Masanobu
    Maruyama, Isao
    Mitsuda, Akihiro
    Wada, Hirofumi
    Kawae, Tatsuya
    Fizika Nizkikh Temperatur, 2023, 49 (07): : 960 - 971
  • [23] Metallic coplanar resonators optimized for low-temperature measurements
    Rahim, Mojtaba Javaheri
    Lehleiter, Thomas
    Bothner, Daniel
    Krellner, Cornelius
    Koelle, Dieter
    Kleiner, Reinhold
    Dressel, Martin
    Scheffler, Marc
    JOURNAL OF PHYSICS D-APPLIED PHYSICS, 2016, 49 (39)
  • [24] Quantum simulation of low-temperature metallic liquid hydrogen
    Ji Chen
    Xin-Zheng Li
    Qianfan Zhang
    Matthew I. J. Probert
    Chris J. Pickard
    Richard J. Needs
    Angelos Michaelides
    Enge Wang
    Nature Communications, 4
  • [25] Quantum simulation of low-temperature metallic liquid hydrogen
    Chen, Ji
    Li, Xin-Zheng
    Zhang, Qianfan
    Probert, Matthew I. J.
    Pickard, Chris J.
    Needs, Richard J.
    Michaelides, Angelos
    Wang, Enge
    NATURE COMMUNICATIONS, 2013, 4
  • [26] Resistivity Measurements in Palladium Hydride Film Prepared by Low-Temperature Hydrogen Absorption Method
    Kato, Ryoma
    Yoshida, Ten-ichiro
    Iimori, Riku
    Zizhou, Tai
    Shiga, Masanobu
    Inagaki, Yuji
    Kimura, Takashi
    Kawae, Tatsuya
    JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 2024, 93 (02)
  • [27] Anisotropy of the superconducting energy gap in URu2Si2 studied by point-contact spectroscopy
    Europhys Lett, 7 (557):
  • [28] Metallic point contacts formed by physical vapor deposition and chemical vapor deposition: microscopy study and point-contact spectroscopy
    Gribov, NN
    Caro, J
    Oosterlaken, TGM
    Radelaar, S
    LOW TEMPERATURE PHYSICS, 1997, 23 (07) : 554 - 560
  • [29] POINT CONTACT SPECTROSCOPY OF COPPER - TEMPERATURE-MEASUREMENTS, DEPENDENCE OF THE POINT CONTACT SPECTRA ON THE CONTACT PARAMETERS
    AKIMENKO, AI
    VERKIN, AB
    PONOMARENKO, NM
    YANSON, IK
    FIZIKA NIZKIKH TEMPERATUR, 1982, 8 (03): : 260 - 275
  • [30] Anisotropy of the superconducting energy gap in URu2Si2 studied by point-contact spectroscopy
    Naidyuk, YG
    vonLohneysen, H
    Goll, G
    Yanson, IK
    Menovsky, AA
    EUROPHYSICS LETTERS, 1996, 33 (07): : 557 - 562
12345