Orientation dependence of electrocaloric effects in Pb(Zn 1/3Nb2/3)-PbTiO3 single crystals

Rami Chukka; Suresh Vandrangi; Zuhuang Chen; Lu You; Junling Wang; Ping Yang; Lang Chen

doi:10.1063/1.4816441

Orientation dependence of electrocaloric effects in Pb(Zn _1/3Nb_2/3)-PbTiO₃ single crystals

Rami Chukka, Suresh Vandrangi, Zuhuang Chen, Lu You, Junling Wang, Ping Yang, Lang Chen

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

13 Citations (Scopus)

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Abstract

Electrocaloric effects of (001), (011) and (111) oriented single crystals have been thoroughly investigated to study the ferroelectric-ferroelectric (FE-FE) phase transition induced isothermal entropy changes in 0.94Pb(Zn _1/3Nb_2/3)O₃-0.06PbTiO₃ (PZN-PT) material. The results showed that the PZN-PT crystals oriented in (111) direction exhibit ∼ 38% higher electrocaloric cooling values near lower critical phase transitions from rhombohedral (R) to tetragonal (T) phases in PZN-PT crystals, compared to those oriented in (011) direction. Though (111) samples display higher cooling values, (011) samples showed broader cooling curves due to their easily switchable characteristics between R and T phases. © 2013 © 2013 Author(s).

Original language	English
Article number	072118
Journal	AIP Advances
Volume	3
Issue number	7
DOIs	https://doi.org/10.1063/1.4816441
Publication status	Published - 1 Jul 2013
Externally published	Yes

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title = "Orientation dependence of electrocaloric effects in Pb(Zn 1/3Nb2/3)-PbTiO3 single crystals",

abstract = "Electrocaloric effects of (001), (011) and (111) oriented single crystals have been thoroughly investigated to study the ferroelectric-ferroelectric (FE-FE) phase transition induced isothermal entropy changes in 0.94Pb(Zn 1/3Nb2/3)O3-0.06PbTiO3 (PZN-PT) material. The results showed that the PZN-PT crystals oriented in (111) direction exhibit ∼ 38% higher electrocaloric cooling values near lower critical phase transitions from rhombohedral (R) to tetragonal (T) phases in PZN-PT crystals, compared to those oriented in (011) direction. Though (111) samples display higher cooling values, (011) samples showed broader cooling curves due to their easily switchable characteristics between R and T phases. {\textcopyright} 2013 {\textcopyright} 2013 Author(s).",

author = "Rami Chukka and Suresh Vandrangi and Zuhuang Chen and Lu You and Junling Wang and Ping Yang and Lang Chen",

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TY - JOUR

T1 - Orientation dependence of electrocaloric effects in Pb(Zn 1/3Nb2/3)-PbTiO3 single crystals

AU - Chukka, Rami

AU - Vandrangi, Suresh

AU - Chen, Zuhuang

AU - You, Lu

AU - Wang, Junling

AU - Yang, Ping

AU - Chen, Lang

N1 - Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].

PY - 2013/7/1

Y1 - 2013/7/1

N2 - Electrocaloric effects of (001), (011) and (111) oriented single crystals have been thoroughly investigated to study the ferroelectric-ferroelectric (FE-FE) phase transition induced isothermal entropy changes in 0.94Pb(Zn 1/3Nb2/3)O3-0.06PbTiO3 (PZN-PT) material. The results showed that the PZN-PT crystals oriented in (111) direction exhibit ∼ 38% higher electrocaloric cooling values near lower critical phase transitions from rhombohedral (R) to tetragonal (T) phases in PZN-PT crystals, compared to those oriented in (011) direction. Though (111) samples display higher cooling values, (011) samples showed broader cooling curves due to their easily switchable characteristics between R and T phases. © 2013 © 2013 Author(s).

AB - Electrocaloric effects of (001), (011) and (111) oriented single crystals have been thoroughly investigated to study the ferroelectric-ferroelectric (FE-FE) phase transition induced isothermal entropy changes in 0.94Pb(Zn 1/3Nb2/3)O3-0.06PbTiO3 (PZN-PT) material. The results showed that the PZN-PT crystals oriented in (111) direction exhibit ∼ 38% higher electrocaloric cooling values near lower critical phase transitions from rhombohedral (R) to tetragonal (T) phases in PZN-PT crystals, compared to those oriented in (011) direction. Though (111) samples display higher cooling values, (011) samples showed broader cooling curves due to their easily switchable characteristics between R and T phases. © 2013 © 2013 Author(s).

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DO - 10.1063/1.4816441

M3 - RGC 21 - Publication in refereed journal

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JO - AIP Advances

JF - AIP Advances

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