A -site dependent percolative thermopower and Griffiths phase in Pr (0.7-x)Ho xSr 0.3MnO 3 (x=0.0, 0.04, 0.08, and 0.1)

N. Rama; M. Opel; V. Sankaranarayanan; R. Gross; S. B. Ogale; T. Venkatesan; M. S.Ramachandra Rao

doi:10.1063/1.1855613

A -site dependent percolative thermopower and Griffiths phase in Pr _(0.7-x)Ho _xSr _0.3MnO ₃ (x=0.0, 0.04, 0.08, and 0.1)

N. Rama, M. Opel, V. Sankaranarayanan, R. Gross, S. B. Ogale, T. Venkatesan, M. S.Ramachandra Rao

Publikation: Beitrag in Fachzeitschrift › Artikel › Begutachtung

2 Zitate (Scopus)

Abstract

We report our analysis of thermopower S (T) of Pr(0.7-x) Hox Sr0.3 Mn O3 (x=0, 0.04, 0.08, and 0.1) compounds within a percolative framework and correlate the results with the existence of a Griffiths phase. The Griffiths temperature, at which ferromagnetic metallic clusters nucleate above TC, is evaluated. We further show that the Griffiths phase extends over a higher temperature range above TC with increase in the variance of ionic radii of the A site.

Originalsprache	Englisch
Aufsatznummer	10H713
Fachzeitschrift	Journal of Applied Physics
Jahrgang	97
Ausgabenummer	10
DOIs	https://doi.org/10.1063/1.1855613
Publikationsstatus	Veröffentlicht - 15 Mai 2005
Extern publiziert	Ja

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title = "A -site dependent percolative thermopower and Griffiths phase in Pr (0.7-x)Ho xSr 0.3MnO 3 (x=0.0, 0.04, 0.08, and 0.1)",

abstract = "We report our analysis of thermopower S (T) of Pr(0.7-x) Hox Sr0.3 Mn O3 (x=0, 0.04, 0.08, and 0.1) compounds within a percolative framework and correlate the results with the existence of a Griffiths phase. The Griffiths temperature, at which ferromagnetic metallic clusters nucleate above TC, is evaluated. We further show that the Griffiths phase extends over a higher temperature range above TC with increase in the variance of ionic radii of the A site.",

author = "N. Rama and M. Opel and V. Sankaranarayanan and R. Gross and Ogale, {S. B.} and T. Venkatesan and Rao, {M. S.Ramachandra}",

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T1 - A -site dependent percolative thermopower and Griffiths phase in Pr (0.7-x)Ho xSr 0.3MnO 3 (x=0.0, 0.04, 0.08, and 0.1)

AU - Rama, N.

AU - Opel, M.

AU - Sankaranarayanan, V.

AU - Gross, R.

AU - Ogale, S. B.

AU - Venkatesan, T.

AU - Rao, M. S.Ramachandra

PY - 2005/5/15

Y1 - 2005/5/15

N2 - We report our analysis of thermopower S (T) of Pr(0.7-x) Hox Sr0.3 Mn O3 (x=0, 0.04, 0.08, and 0.1) compounds within a percolative framework and correlate the results with the existence of a Griffiths phase. The Griffiths temperature, at which ferromagnetic metallic clusters nucleate above TC, is evaluated. We further show that the Griffiths phase extends over a higher temperature range above TC with increase in the variance of ionic radii of the A site.

AB - We report our analysis of thermopower S (T) of Pr(0.7-x) Hox Sr0.3 Mn O3 (x=0, 0.04, 0.08, and 0.1) compounds within a percolative framework and correlate the results with the existence of a Griffiths phase. The Griffiths temperature, at which ferromagnetic metallic clusters nucleate above TC, is evaluated. We further show that the Griffiths phase extends over a higher temperature range above TC with increase in the variance of ionic radii of the A site.

UR - http://www.scopus.com/inward/record.url?scp=20944450225&partnerID=8YFLogxK

U2 - 10.1063/1.1855613

DO - 10.1063/1.1855613

M3 - Article

AN - SCOPUS:20944450225

SN - 0021-8979

VL - 97

JO - Journal of Applied Physics

JF - Journal of Applied Physics

IS - 10

M1 - 10H713