Relaxor behavior and electrothermal properties of Sn- and Nb-modified (Ba,Ca)TiO3 Pb-free ferroelectric

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Relaxor behavior and electrothermal properties of Sn- and Nb-modified (Ba,Ca)TiO3 Pb-free ferroelectric. / Venkateshwarlu, Sarangi; Nayak, Sanjib; Marlton, Frederick P.; Weyland, Florian; Novak, Nikola; Maurya, Deepam; Veerabhadraiah, Yashaswini; Borkiewicz, Olaf; Beyer, Kevin A.; Jorgensen, Mads R.V.; Pramanick, Abhijit.

I: Journal of Materials Research, Bind 35, Nr. 8, 04.2020, s. 1017-1027.

Publikation: Bidrag til tidsskrift/Konferencebidrag i tidsskrift /Bidrag til avisReviewForskningpeer review

Harvard

Venkateshwarlu, S, Nayak, S, Marlton, FP, Weyland, F, Novak, N, Maurya, D, Veerabhadraiah, Y, Borkiewicz, O, Beyer, KA, Jorgensen, MRV & Pramanick, A 2020, 'Relaxor behavior and electrothermal properties of Sn- and Nb-modified (Ba,Ca)TiO3 Pb-free ferroelectric', Journal of Materials Research, bind 35, nr. 8, s. 1017-1027. https://doi.org/10.1557/jmr.2020.25

APA

Venkateshwarlu, S., Nayak, S., Marlton, F. P., Weyland, F., Novak, N., Maurya, D., Veerabhadraiah, Y., Borkiewicz, O., Beyer, K. A., Jorgensen, M. R. V., & Pramanick, A. (2020). Relaxor behavior and electrothermal properties of Sn- and Nb-modified (Ba,Ca)TiO3 Pb-free ferroelectric. Journal of Materials Research, 35(8), 1017-1027. https://doi.org/10.1557/jmr.2020.25

CBE

Venkateshwarlu S, Nayak S, Marlton FP, Weyland F, Novak N, Maurya D, Veerabhadraiah Y, Borkiewicz O, Beyer KA, Jorgensen MRV, Pramanick A. 2020. Relaxor behavior and electrothermal properties of Sn- and Nb-modified (Ba,Ca)TiO3 Pb-free ferroelectric. Journal of Materials Research. 35(8):1017-1027. https://doi.org/10.1557/jmr.2020.25

MLA

Vancouver

Venkateshwarlu S, Nayak S, Marlton FP, Weyland F, Novak N, Maurya D o.a. Relaxor behavior and electrothermal properties of Sn- and Nb-modified (Ba,Ca)TiO3 Pb-free ferroelectric. Journal of Materials Research. 2020 apr;35(8):1017-1027. https://doi.org/10.1557/jmr.2020.25

Author

Venkateshwarlu, Sarangi ; Nayak, Sanjib ; Marlton, Frederick P. ; Weyland, Florian ; Novak, Nikola ; Maurya, Deepam ; Veerabhadraiah, Yashaswini ; Borkiewicz, Olaf ; Beyer, Kevin A. ; Jorgensen, Mads R.V. ; Pramanick, Abhijit. / Relaxor behavior and electrothermal properties of Sn- and Nb-modified (Ba,Ca)TiO3 Pb-free ferroelectric. I: Journal of Materials Research. 2020 ; Bind 35, Nr. 8. s. 1017-1027.

Bibtex

@article{25a1b57f3ae84a5eadb54718277ca3b8,
title = "Relaxor behavior and electrothermal properties of Sn- and Nb-modified (Ba,Ca)TiO3 Pb-free ferroelectric",
abstract = "Relaxor ferroelectrics have drawn attention for possible applications in solid-state cooling and thermal energy harvesting, owing to their electrothermal energy conversion properties. Here, we have synthesized and characterized the structure-property correlations of a new Sn- and Nb-doped (Ba,Ca)TiO3 relaxor ferroelectric with large pyroelectric and electrocaloric effects over a broad temperature range. We observed two peaks for the temperature-dependent pyroelectric coefficient: (i) -(∂P/∂T) ∼ 563 μC/(m2 K) at T∼ 270 K and (ii) -(∂P/∂T) ∼ 1021 μC/(m2 K) at T∼ 320 K. In addition, a broad peak for electrocaloric temperature change is observed near 320 K with a relative cooling power of ∼17 J/kg. These properties could be correlated to structural changes observed using X-ray diffraction at two different temperature ranges in the material. Analysis of high-energy X-ray scattering and specific heat capacity data revealed a transition from the cubic to tetragonal phase near Tm∼ 320 K, whereas an additional increase in the tetragonality (c/a) of the polar phase is observed below Ts∼ 270 K.",
keywords = "electrical properties, ferroelectric, X-ray diffraction",
author = "Sarangi Venkateshwarlu and Sanjib Nayak and Marlton, {Frederick P.} and Florian Weyland and Nikola Novak and Deepam Maurya and Yashaswini Veerabhadraiah and Olaf Borkiewicz and Beyer, {Kevin A.} and Jorgensen, {Mads R.V.} and Abhijit Pramanick",
year = "2020",
month = apr,
doi = "10.1557/jmr.2020.25",
language = "English",
volume = "35",
pages = "1017--1027",
journal = "Journal of Materials Research",
issn = "0884-2914",
publisher = "Cambridge University Press",
number = "8",

}

RIS

TY - JOUR

T1 - Relaxor behavior and electrothermal properties of Sn- and Nb-modified (Ba,Ca)TiO3 Pb-free ferroelectric

AU - Venkateshwarlu, Sarangi

AU - Nayak, Sanjib

AU - Marlton, Frederick P.

AU - Weyland, Florian

AU - Novak, Nikola

AU - Maurya, Deepam

AU - Veerabhadraiah, Yashaswini

AU - Borkiewicz, Olaf

AU - Beyer, Kevin A.

AU - Jorgensen, Mads R.V.

AU - Pramanick, Abhijit

PY - 2020/4

Y1 - 2020/4

N2 - Relaxor ferroelectrics have drawn attention for possible applications in solid-state cooling and thermal energy harvesting, owing to their electrothermal energy conversion properties. Here, we have synthesized and characterized the structure-property correlations of a new Sn- and Nb-doped (Ba,Ca)TiO3 relaxor ferroelectric with large pyroelectric and electrocaloric effects over a broad temperature range. We observed two peaks for the temperature-dependent pyroelectric coefficient: (i) -(∂P/∂T) ∼ 563 μC/(m2 K) at T∼ 270 K and (ii) -(∂P/∂T) ∼ 1021 μC/(m2 K) at T∼ 320 K. In addition, a broad peak for electrocaloric temperature change is observed near 320 K with a relative cooling power of ∼17 J/kg. These properties could be correlated to structural changes observed using X-ray diffraction at two different temperature ranges in the material. Analysis of high-energy X-ray scattering and specific heat capacity data revealed a transition from the cubic to tetragonal phase near Tm∼ 320 K, whereas an additional increase in the tetragonality (c/a) of the polar phase is observed below Ts∼ 270 K.

AB - Relaxor ferroelectrics have drawn attention for possible applications in solid-state cooling and thermal energy harvesting, owing to their electrothermal energy conversion properties. Here, we have synthesized and characterized the structure-property correlations of a new Sn- and Nb-doped (Ba,Ca)TiO3 relaxor ferroelectric with large pyroelectric and electrocaloric effects over a broad temperature range. We observed two peaks for the temperature-dependent pyroelectric coefficient: (i) -(∂P/∂T) ∼ 563 μC/(m2 K) at T∼ 270 K and (ii) -(∂P/∂T) ∼ 1021 μC/(m2 K) at T∼ 320 K. In addition, a broad peak for electrocaloric temperature change is observed near 320 K with a relative cooling power of ∼17 J/kg. These properties could be correlated to structural changes observed using X-ray diffraction at two different temperature ranges in the material. Analysis of high-energy X-ray scattering and specific heat capacity data revealed a transition from the cubic to tetragonal phase near Tm∼ 320 K, whereas an additional increase in the tetragonality (c/a) of the polar phase is observed below Ts∼ 270 K.

KW - electrical properties

KW - ferroelectric

KW - X-ray diffraction

UR - http://www.scopus.com/inward/record.url?scp=85079488423&partnerID=8YFLogxK

U2 - 10.1557/jmr.2020.25

DO - 10.1557/jmr.2020.25

M3 - Review

AN - SCOPUS:85079488423

VL - 35

SP - 1017

EP - 1027

JO - Journal of Materials Research

JF - Journal of Materials Research

SN - 0884-2914

IS - 8

ER -