Thermopower of single-crystal

Vincent Henry Crespi, Li Lu Y.X. Jia, K. Khazeni, A. Zettl, Marvin L. Cohen

Research output: Contribution to journalArticle

35 Citations (Scopus)

Abstract

We report measurements of the thermopower of the single-crystal manganite perovskite (Formula presented) from 4.2 to 350 K at zero and finite magnetic field. The sign and magnitude of the thermopower above the magnetic transition are doping dependent. The magnitude of the thermopower drops sharply below the transition to the magnetically ordered state. At lower temperatures the thermopower changes sign from negative to positive with decreasing temperature in the range 100-150 K. Implications for the temperature-dependent electronic structure and scattering processes in this temperature range are discussed. The high-temperature behavior is interpreted within a lattice polaron model. Further analysis suggests a form of variable-range hopping conduction at high temperatures.

Original languageEnglish (US)
Pages (from-to)14303-14308
Number of pages6
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume53
Issue number21
DOIs
StatePublished - Jan 1 1996

Fingerprint

Thermoelectric power
Single crystals
single crystals
Temperature
temperature
electronic structure
conduction
Gene Conversion
scattering
magnetic fields
Perovskite
Electronic structure
Doping (additives)
Scattering
Magnetic fields

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

Cite this

Crespi, Vincent Henry ; Jia, Li Lu Y.X. ; Khazeni, K. ; Zettl, A. ; Cohen, Marvin L. / Thermopower of single-crystal. In: Physical Review B - Condensed Matter and Materials Physics. 1996 ; Vol. 53, No. 21. pp. 14303-14308.
@article{2bb74fcb860444df9dd82893b1643bb8,
title = "Thermopower of single-crystal",
abstract = "We report measurements of the thermopower of the single-crystal manganite perovskite (Formula presented) from 4.2 to 350 K at zero and finite magnetic field. The sign and magnitude of the thermopower above the magnetic transition are doping dependent. The magnitude of the thermopower drops sharply below the transition to the magnetically ordered state. At lower temperatures the thermopower changes sign from negative to positive with decreasing temperature in the range 100-150 K. Implications for the temperature-dependent electronic structure and scattering processes in this temperature range are discussed. The high-temperature behavior is interpreted within a lattice polaron model. Further analysis suggests a form of variable-range hopping conduction at high temperatures.",
author = "Crespi, {Vincent Henry} and Jia, {Li Lu Y.X.} and K. Khazeni and A. Zettl and Cohen, {Marvin L.}",
year = "1996",
month = "1",
day = "1",
doi = "10.1103/PhysRevB.53.14303",
language = "English (US)",
volume = "53",
pages = "14303--14308",
journal = "Physical Review B-Condensed Matter",
issn = "1098-0121",
publisher = "American Physical Society",
number = "21",

}

Crespi, VH, Jia, LLYX, Khazeni, K, Zettl, A & Cohen, ML 1996, 'Thermopower of single-crystal', Physical Review B - Condensed Matter and Materials Physics, vol. 53, no. 21, pp. 14303-14308. https://doi.org/10.1103/PhysRevB.53.14303

Thermopower of single-crystal. / Crespi, Vincent Henry; Jia, Li Lu Y.X.; Khazeni, K.; Zettl, A.; Cohen, Marvin L.

In: Physical Review B - Condensed Matter and Materials Physics, Vol. 53, No. 21, 01.01.1996, p. 14303-14308.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Thermopower of single-crystal

AU - Crespi, Vincent Henry

AU - Jia, Li Lu Y.X.

AU - Khazeni, K.

AU - Zettl, A.

AU - Cohen, Marvin L.

PY - 1996/1/1

Y1 - 1996/1/1

N2 - We report measurements of the thermopower of the single-crystal manganite perovskite (Formula presented) from 4.2 to 350 K at zero and finite magnetic field. The sign and magnitude of the thermopower above the magnetic transition are doping dependent. The magnitude of the thermopower drops sharply below the transition to the magnetically ordered state. At lower temperatures the thermopower changes sign from negative to positive with decreasing temperature in the range 100-150 K. Implications for the temperature-dependent electronic structure and scattering processes in this temperature range are discussed. The high-temperature behavior is interpreted within a lattice polaron model. Further analysis suggests a form of variable-range hopping conduction at high temperatures.

AB - We report measurements of the thermopower of the single-crystal manganite perovskite (Formula presented) from 4.2 to 350 K at zero and finite magnetic field. The sign and magnitude of the thermopower above the magnetic transition are doping dependent. The magnitude of the thermopower drops sharply below the transition to the magnetically ordered state. At lower temperatures the thermopower changes sign from negative to positive with decreasing temperature in the range 100-150 K. Implications for the temperature-dependent electronic structure and scattering processes in this temperature range are discussed. The high-temperature behavior is interpreted within a lattice polaron model. Further analysis suggests a form of variable-range hopping conduction at high temperatures.

UR - http://www.scopus.com/inward/record.url?scp=0000906605&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0000906605&partnerID=8YFLogxK

U2 - 10.1103/PhysRevB.53.14303

DO - 10.1103/PhysRevB.53.14303

M3 - Article

AN - SCOPUS:0000906605

VL - 53

SP - 14303

EP - 14308

JO - Physical Review B-Condensed Matter

JF - Physical Review B-Condensed Matter

SN - 1098-0121

IS - 21

ER -