Electronic properties and superconductivity of Zr-Pd glasses

G. R. Gruzalski, J. A. Gerber, D. J. Sellmyer

Research output: Contribution to journalArticle

20 Citations (Scopus)

Abstract

Electrical-resistivity measurements between 1.4 and 300 K and room-temperature magnetic-susceptibility measurements were performed on the metallic glasses ZrxPd1-x, for x=0.59,0.63,0.67, and 0.70. The samples, prepared by a modified hammer-anvil technique, exhibit negative temperature coefficients of the resistivity at temperatures from about 10 to 300 K. These data can be understood in terms of the extended Ziman theory if it is assumed that Zr and Pd contribute about 2 and 1 conduction electrons, respectively. Assuming that the magnetic susceptibility is a qualitative measure of the electronic density of states at the Fermi level, N(EF), it is shown that N(EF) does not seem to decrease with composition as the eutectic composition is approached. Thus, for this system, there is no obvious correlation between the thermodynamic stability of the liquid phase and the electronic density of states. The superconducting transition temperature (Tc) scales linearly with x and the valence-electron-per- atom ratio (z). However, as in the case for other intertransition-metal glasses composed of distant neighbors in the Periodic Table, Tc(z) falls below the Collver-Hammond Tc(z) curve for amorphous metals and alloys of neighboring metals of the 4d and 5d transition series.

Original languageEnglish (US)
Pages (from-to)3469-3475
Number of pages7
JournalPhysical Review B
Volume19
Issue number7
DOIs
StatePublished - Jan 1 1979

Fingerprint

Superconductivity
Electronic properties
Electronic density of states
superconductivity
Metals
Magnetic susceptibility
Glass
glass
electronics
metals
Temperature scales
Negative temperature coefficient
magnetic permeability
hammers
electrical resistivity
temperature scales
Electrons
Hammers
Metallic glass
anvils

ASJC Scopus subject areas

  • Condensed Matter Physics

Cite this

Electronic properties and superconductivity of Zr-Pd glasses. / Gruzalski, G. R.; Gerber, J. A.; Sellmyer, D. J.

In: Physical Review B, Vol. 19, No. 7, 01.01.1979, p. 3469-3475.

Research output: Contribution to journalArticle

Gruzalski, G. R. ; Gerber, J. A. ; Sellmyer, D. J. / Electronic properties and superconductivity of Zr-Pd glasses. In: Physical Review B. 1979 ; Vol. 19, No. 7. pp. 3469-3475.
@article{ebfe3a29b85d45ff981e3af0cbc59e53,
title = "Electronic properties and superconductivity of Zr-Pd glasses",
abstract = "Electrical-resistivity measurements between 1.4 and 300 K and room-temperature magnetic-susceptibility measurements were performed on the metallic glasses ZrxPd1-x, for x=0.59,0.63,0.67, and 0.70. The samples, prepared by a modified hammer-anvil technique, exhibit negative temperature coefficients of the resistivity at temperatures from about 10 to 300 K. These data can be understood in terms of the extended Ziman theory if it is assumed that Zr and Pd contribute about 2 and 1 conduction electrons, respectively. Assuming that the magnetic susceptibility is a qualitative measure of the electronic density of states at the Fermi level, N(EF), it is shown that N(EF) does not seem to decrease with composition as the eutectic composition is approached. Thus, for this system, there is no obvious correlation between the thermodynamic stability of the liquid phase and the electronic density of states. The superconducting transition temperature (Tc) scales linearly with x and the valence-electron-per- atom ratio (z). However, as in the case for other intertransition-metal glasses composed of distant neighbors in the Periodic Table, Tc(z) falls below the Collver-Hammond Tc(z) curve for amorphous metals and alloys of neighboring metals of the 4d and 5d transition series.",
author = "Gruzalski, {G. R.} and Gerber, {J. A.} and Sellmyer, {D. J.}",
year = "1979",
month = "1",
day = "1",
doi = "10.1103/PhysRevB.19.3469",
language = "English (US)",
volume = "19",
pages = "3469--3475",
journal = "Physical Review B-Condensed Matter",
issn = "0163-1829",
publisher = "American Institute of Physics",
number = "7",

}

TY - JOUR

T1 - Electronic properties and superconductivity of Zr-Pd glasses

AU - Gruzalski, G. R.

AU - Gerber, J. A.

AU - Sellmyer, D. J.

PY - 1979/1/1

Y1 - 1979/1/1

N2 - Electrical-resistivity measurements between 1.4 and 300 K and room-temperature magnetic-susceptibility measurements were performed on the metallic glasses ZrxPd1-x, for x=0.59,0.63,0.67, and 0.70. The samples, prepared by a modified hammer-anvil technique, exhibit negative temperature coefficients of the resistivity at temperatures from about 10 to 300 K. These data can be understood in terms of the extended Ziman theory if it is assumed that Zr and Pd contribute about 2 and 1 conduction electrons, respectively. Assuming that the magnetic susceptibility is a qualitative measure of the electronic density of states at the Fermi level, N(EF), it is shown that N(EF) does not seem to decrease with composition as the eutectic composition is approached. Thus, for this system, there is no obvious correlation between the thermodynamic stability of the liquid phase and the electronic density of states. The superconducting transition temperature (Tc) scales linearly with x and the valence-electron-per- atom ratio (z). However, as in the case for other intertransition-metal glasses composed of distant neighbors in the Periodic Table, Tc(z) falls below the Collver-Hammond Tc(z) curve for amorphous metals and alloys of neighboring metals of the 4d and 5d transition series.

AB - Electrical-resistivity measurements between 1.4 and 300 K and room-temperature magnetic-susceptibility measurements were performed on the metallic glasses ZrxPd1-x, for x=0.59,0.63,0.67, and 0.70. The samples, prepared by a modified hammer-anvil technique, exhibit negative temperature coefficients of the resistivity at temperatures from about 10 to 300 K. These data can be understood in terms of the extended Ziman theory if it is assumed that Zr and Pd contribute about 2 and 1 conduction electrons, respectively. Assuming that the magnetic susceptibility is a qualitative measure of the electronic density of states at the Fermi level, N(EF), it is shown that N(EF) does not seem to decrease with composition as the eutectic composition is approached. Thus, for this system, there is no obvious correlation between the thermodynamic stability of the liquid phase and the electronic density of states. The superconducting transition temperature (Tc) scales linearly with x and the valence-electron-per- atom ratio (z). However, as in the case for other intertransition-metal glasses composed of distant neighbors in the Periodic Table, Tc(z) falls below the Collver-Hammond Tc(z) curve for amorphous metals and alloys of neighboring metals of the 4d and 5d transition series.

UR - http://www.scopus.com/inward/record.url?scp=35949026839&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=35949026839&partnerID=8YFLogxK

U2 - 10.1103/PhysRevB.19.3469

DO - 10.1103/PhysRevB.19.3469

M3 - Article

AN - SCOPUS:35949026839

VL - 19

SP - 3469

EP - 3475

JO - Physical Review B-Condensed Matter

JF - Physical Review B-Condensed Matter

SN - 0163-1829

IS - 7

ER -