1H NMR spectra and h-site occupancy in Zr0.5CuyNi0.5-yH1 metallic glasses

G. Lasanda, P. Bánki, K. Tompa

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

Proton magnetic resonance spectra of Zr0.5CuyNi0.5-yH1 metallic glass samples with 0 ≤ y ≤ 0.3 were measured in the temperature range 77 K to 400 K and at 8, 28.5, 87.6 and 88.5 MHz frequencies. The data of the free-induction decay (FID) signal were compiled and Fourier transformed by a SMIS NMR spectrometer. The temperature dependence of the line shapes shows three distinctly different features: (i) in the temperature range 400 K to 270 K the spectrum is a motionally narrowed Lorentzian line; (ii) in the temperature range 270 K to 140 K the spectrum consists of a narrow Lorentzian component and a substantially wider Gaussian one; (iii) in the temperature range 140 K to 77 K, the spectrum is a "two-peaked" line. The distance between the two peaks (splitting) was found to be independent of the temperature and the frequency, that means that the low-temperature spectrum is probably the Pake doublet of hydrogen pairs. From the analysis of the splitting of the Pake doublet, a proton-proton distance of 0.167 nm was estimated. This distance corresponds to a transition metal mediated hydrogen pairing.

Original languageEnglish
Pages (from-to)665-668
Number of pages4
JournalSolid State Communications
Volume87
Issue number8
DOIs
Publication statusPublished - 1993

Fingerprint

Metallic glass
metallic glasses
Nuclear magnetic resonance
nuclear magnetic resonance
Temperature
temperature
Protons
Hydrogen
proton magnetic resonance
protons
hydrogen
line shape
induction
transition metals
spectrometers
Transition metals
Spectrometers
temperature dependence
decay

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics

Cite this

1H NMR spectra and h-site occupancy in Zr0.5CuyNi0.5-yH1 metallic glasses. / Lasanda, G.; Bánki, P.; Tompa, K.

In: Solid State Communications, Vol. 87, No. 8, 1993, p. 665-668.

Research output: Contribution to journalArticle

@article{831f2e09b9fd40f1943580a52a7cc3de,
title = "1H NMR spectra and h-site occupancy in Zr0.5CuyNi0.5-yH1 metallic glasses",
abstract = "Proton magnetic resonance spectra of Zr0.5CuyNi0.5-yH1 metallic glass samples with 0 ≤ y ≤ 0.3 were measured in the temperature range 77 K to 400 K and at 8, 28.5, 87.6 and 88.5 MHz frequencies. The data of the free-induction decay (FID) signal were compiled and Fourier transformed by a SMIS NMR spectrometer. The temperature dependence of the line shapes shows three distinctly different features: (i) in the temperature range 400 K to 270 K the spectrum is a motionally narrowed Lorentzian line; (ii) in the temperature range 270 K to 140 K the spectrum consists of a narrow Lorentzian component and a substantially wider Gaussian one; (iii) in the temperature range 140 K to 77 K, the spectrum is a {"}two-peaked{"} line. The distance between the two peaks (splitting) was found to be independent of the temperature and the frequency, that means that the low-temperature spectrum is probably the Pake doublet of hydrogen pairs. From the analysis of the splitting of the Pake doublet, a proton-proton distance of 0.167 nm was estimated. This distance corresponds to a transition metal mediated hydrogen pairing.",
author = "G. Lasanda and P. B{\'a}nki and K. Tompa",
year = "1993",
doi = "10.1016/0038-1098(93)90202-X",
language = "English",
volume = "87",
pages = "665--668",
journal = "Solid State Communications",
issn = "0038-1098",
publisher = "Elsevier Limited",
number = "8",

}

TY - JOUR

T1 - 1H NMR spectra and h-site occupancy in Zr0.5CuyNi0.5-yH1 metallic glasses

AU - Lasanda, G.

AU - Bánki, P.

AU - Tompa, K.

PY - 1993

Y1 - 1993

N2 - Proton magnetic resonance spectra of Zr0.5CuyNi0.5-yH1 metallic glass samples with 0 ≤ y ≤ 0.3 were measured in the temperature range 77 K to 400 K and at 8, 28.5, 87.6 and 88.5 MHz frequencies. The data of the free-induction decay (FID) signal were compiled and Fourier transformed by a SMIS NMR spectrometer. The temperature dependence of the line shapes shows three distinctly different features: (i) in the temperature range 400 K to 270 K the spectrum is a motionally narrowed Lorentzian line; (ii) in the temperature range 270 K to 140 K the spectrum consists of a narrow Lorentzian component and a substantially wider Gaussian one; (iii) in the temperature range 140 K to 77 K, the spectrum is a "two-peaked" line. The distance between the two peaks (splitting) was found to be independent of the temperature and the frequency, that means that the low-temperature spectrum is probably the Pake doublet of hydrogen pairs. From the analysis of the splitting of the Pake doublet, a proton-proton distance of 0.167 nm was estimated. This distance corresponds to a transition metal mediated hydrogen pairing.

AB - Proton magnetic resonance spectra of Zr0.5CuyNi0.5-yH1 metallic glass samples with 0 ≤ y ≤ 0.3 were measured in the temperature range 77 K to 400 K and at 8, 28.5, 87.6 and 88.5 MHz frequencies. The data of the free-induction decay (FID) signal were compiled and Fourier transformed by a SMIS NMR spectrometer. The temperature dependence of the line shapes shows three distinctly different features: (i) in the temperature range 400 K to 270 K the spectrum is a motionally narrowed Lorentzian line; (ii) in the temperature range 270 K to 140 K the spectrum consists of a narrow Lorentzian component and a substantially wider Gaussian one; (iii) in the temperature range 140 K to 77 K, the spectrum is a "two-peaked" line. The distance between the two peaks (splitting) was found to be independent of the temperature and the frequency, that means that the low-temperature spectrum is probably the Pake doublet of hydrogen pairs. From the analysis of the splitting of the Pake doublet, a proton-proton distance of 0.167 nm was estimated. This distance corresponds to a transition metal mediated hydrogen pairing.

UR - http://www.scopus.com/inward/record.url?scp=0027642285&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0027642285&partnerID=8YFLogxK

U2 - 10.1016/0038-1098(93)90202-X

DO - 10.1016/0038-1098(93)90202-X

M3 - Article

AN - SCOPUS:0027642285

VL - 87

SP - 665

EP - 668

JO - Solid State Communications

JF - Solid State Communications

SN - 0038-1098

IS - 8

ER -