Electrical properties of an unusual liquid semiconductor: K-te

J. Fortner; Marie Louise Saboungi; J. E. Enderby

doi:10.1080/09500839308240498

Electrical properties of an unusual liquid semiconductor: K-te

J. Fortner, Marie Louise Saboungi, J. E. Enderby

Research output: Contribution to journal › Article › peer-review

11 Scopus citations

Abstract

Thermopower and electrical conductivity measurements are reported for liquid K_xTej_{1_x} alloys. The results confirm a semiconducting behaviour of the liquid over a large range of compositions and temperatures, which is due to the presence of low- coordination structural units as confirmed by recent diffraction studies. Further insights into the controversial issue of Te bonding in the liquid state are inferred. The Kubo-Greenwood formalism is discussed to explain the observed electrical conductivity and thermopower. The temperature dependence of the conductivity is shown to obey the Meyer-Neldel (MN) rule. The data are not consistent with an explanation of the MN rule based on a statistical shift of the Fermi energy with temperature.

Original language	English
Pages (from-to)	85-91
Number of pages	7
Journal	Philosophical Magazine Letters
Volume	68
Issue number	2
DOIs	https://doi.org/10.1080/09500839308240498
State	Published - Aug 1993
Externally published	Yes

Funding

We would like to thank Ms Michelle Doyle of Northwestern University and Dr Adrian C. Barnes of the University of Bristol for useful input in the experiments. We especially thank Dr Victor Karpov of Argonne for stimulating discussions. This work was performed under the auspices of the Division of Materials Sciences, Office of Basic Energy Sciences, US Department of Energy, under Contract No. W-31-109-Eng-38.

Funders	Funder number
US Department of Energy
Basic Energy Sciences

Access to Document

10.1080/09500839308240498

Cite this

@article{21d638fd2af640fa977174c5248c1724,

title = "Electrical properties of an unusual liquid semiconductor: K-te",

abstract = "Thermopower and electrical conductivity measurements are reported for liquid KxTej1_x alloys. The results confirm a semiconducting behaviour of the liquid over a large range of compositions and temperatures, which is due to the presence of low- coordination structural units as confirmed by recent diffraction studies. Further insights into the controversial issue of Te bonding in the liquid state are inferred. The Kubo-Greenwood formalism is discussed to explain the observed electrical conductivity and thermopower. The temperature dependence of the conductivity is shown to obey the Meyer-Neldel (MN) rule. The data are not consistent with an explanation of the MN rule based on a statistical shift of the Fermi energy with temperature.",

author = "J. Fortner and Saboungi, {Marie Louise} and Enderby, {J. E.}",

year = "1993",

month = aug,

doi = "10.1080/09500839308240498",

language = "English",

volume = "68",

pages = "85--91",

journal = "Philosophical Magazine Letters",

issn = "0950-0839",

publisher = "Taylor and Francis Group",

number = "2",

}

TY - JOUR

T1 - Electrical properties of an unusual liquid semiconductor

T2 - K-te

AU - Fortner, J.

AU - Saboungi, Marie Louise

AU - Enderby, J. E.

PY - 1993/8

Y1 - 1993/8

N2 - Thermopower and electrical conductivity measurements are reported for liquid KxTej1_x alloys. The results confirm a semiconducting behaviour of the liquid over a large range of compositions and temperatures, which is due to the presence of low- coordination structural units as confirmed by recent diffraction studies. Further insights into the controversial issue of Te bonding in the liquid state are inferred. The Kubo-Greenwood formalism is discussed to explain the observed electrical conductivity and thermopower. The temperature dependence of the conductivity is shown to obey the Meyer-Neldel (MN) rule. The data are not consistent with an explanation of the MN rule based on a statistical shift of the Fermi energy with temperature.

AB - Thermopower and electrical conductivity measurements are reported for liquid KxTej1_x alloys. The results confirm a semiconducting behaviour of the liquid over a large range of compositions and temperatures, which is due to the presence of low- coordination structural units as confirmed by recent diffraction studies. Further insights into the controversial issue of Te bonding in the liquid state are inferred. The Kubo-Greenwood formalism is discussed to explain the observed electrical conductivity and thermopower. The temperature dependence of the conductivity is shown to obey the Meyer-Neldel (MN) rule. The data are not consistent with an explanation of the MN rule based on a statistical shift of the Fermi energy with temperature.

UR - http://www.scopus.com/inward/record.url?scp=0345595023&partnerID=8YFLogxK

U2 - 10.1080/09500839308240498

DO - 10.1080/09500839308240498

M3 - Article

AN - SCOPUS:0345595023

SN - 0950-0839

VL - 68

SP - 85

EP - 91

JO - Philosophical Magazine Letters

JF - Philosophical Magazine Letters

IS - 2

ER -

Electrical properties of an unusual liquid semiconductor: K-te

Abstract

Funding

Access to Document

Other files and links

Fingerprint

Cite this