Abstract

Present study reports the magnetocaloric effect (MCE) and piezoresponse of integrated ferroelectric-ferromagnetic heterostructures of PbZr0.52Ti0.48O3 (PZT) (5 nm)/ Bi-Sr-Ca-Cu2-OX (BSCCO) (5 nm)/ La0.67Sr0.33MnO3 (LSMO) (40 nm)/ MgO. Magnetic and pizoresponse behavior of the heterostructures are found to be governed by magneto-electric coupling and induced lattice strains. In addition, the MCE is studied using Maxwell equations from both Field Cooled (FC) and Zero Field Cooled (ZFC) magnetization data. Maximum MCE entropy change (|ΔS|) of 42.6 mJkg-1K-1 (at 258 K) and 41.7 mJkg-1K-1 (at 269 K) are found corresponding to FC and ZFC data, respectively. The variation in maximum entropy change and corresponding temperatures for FC and ZFC data revealed that the application of a magnetic field can significantly contribute towards tuning of the MCE. Interestingly, these multilayered structures are found to sustain MCE over a broad temperature range, which makes them attractive for improved solid-state energy conversion devices.
LanguageEnglish
Pages511-516
Number of pages6
JournalJournal of Magnetism and Magnetic Materials
Volume473
Early online date6 Oct 2018
DOIs
StatusPublished - 1 Mar 2019

Cite this

Magnetocaloric effect and piezoresponse of engineered ferroelectric-ferromagnetic heterostructures. / Vats, Gaurav; Ravikant; Kumari, Shalini; Pradhan, Dhiren; Katiyar, Ram; Ojha, V. N.; Bowen, Christopher; Kumar, Ashok.

In: Journal of Magnetism and Magnetic Materials, Vol. 473, 01.03.2019, p. 511-516.

Research output: Contribution to journalArticle

Vats, Gaurav ; Ravikant ; Kumari, Shalini ; Pradhan, Dhiren ; Katiyar, Ram ; Ojha, V. N. ; Bowen, Christopher ; Kumar, Ashok. / Magnetocaloric effect and piezoresponse of engineered ferroelectric-ferromagnetic heterostructures. In: Journal of Magnetism and Magnetic Materials. 2019 ; Vol. 473. pp. 511-516.
@article{4890508b927b4c40823eae644a97f5a4,
title = "Magnetocaloric effect and piezoresponse of engineered ferroelectric-ferromagnetic heterostructures",
abstract = "Present study reports the magnetocaloric effect (MCE) and piezoresponse of integrated ferroelectric-ferromagnetic heterostructures of PbZr0.52Ti0.48O3 (PZT) (5 nm)/ Bi-Sr-Ca-Cu2-OX (BSCCO) (5 nm)/ La0.67Sr0.33MnO3 (LSMO) (40 nm)/ MgO. Magnetic and pizoresponse behavior of the heterostructures are found to be governed by magneto-electric coupling and induced lattice strains. In addition, the MCE is studied using Maxwell equations from both Field Cooled (FC) and Zero Field Cooled (ZFC) magnetization data. Maximum MCE entropy change (|ΔS|) of 42.6 mJkg-1K-1 (at 258 K) and 41.7 mJkg-1K-1 (at 269 K) are found corresponding to FC and ZFC data, respectively. The variation in maximum entropy change and corresponding temperatures for FC and ZFC data revealed that the application of a magnetic field can significantly contribute towards tuning of the MCE. Interestingly, these multilayered structures are found to sustain MCE over a broad temperature range, which makes them attractive for improved solid-state energy conversion devices.",
author = "Gaurav Vats and Ravikant and Shalini Kumari and Dhiren Pradhan and Ram Katiyar and Ojha, {V. N.} and Christopher Bowen and Ashok Kumar",
year = "2019",
month = "3",
day = "1",
doi = "10.1016/j.jmmm.2018.10.024",
language = "English",
volume = "473",
pages = "511--516",
journal = "Journal of Magnetism and Magnetic Materials",
issn = "0304-8853",
publisher = "Elsevier",

}

TY - JOUR

T1 - Magnetocaloric effect and piezoresponse of engineered ferroelectric-ferromagnetic heterostructures

AU - Vats, Gaurav

AU - Ravikant, null

AU - Kumari, Shalini

AU - Pradhan, Dhiren

AU - Katiyar, Ram

AU - Ojha, V. N.

AU - Bowen, Christopher

AU - Kumar, Ashok

PY - 2019/3/1

Y1 - 2019/3/1

N2 - Present study reports the magnetocaloric effect (MCE) and piezoresponse of integrated ferroelectric-ferromagnetic heterostructures of PbZr0.52Ti0.48O3 (PZT) (5 nm)/ Bi-Sr-Ca-Cu2-OX (BSCCO) (5 nm)/ La0.67Sr0.33MnO3 (LSMO) (40 nm)/ MgO. Magnetic and pizoresponse behavior of the heterostructures are found to be governed by magneto-electric coupling and induced lattice strains. In addition, the MCE is studied using Maxwell equations from both Field Cooled (FC) and Zero Field Cooled (ZFC) magnetization data. Maximum MCE entropy change (|ΔS|) of 42.6 mJkg-1K-1 (at 258 K) and 41.7 mJkg-1K-1 (at 269 K) are found corresponding to FC and ZFC data, respectively. The variation in maximum entropy change and corresponding temperatures for FC and ZFC data revealed that the application of a magnetic field can significantly contribute towards tuning of the MCE. Interestingly, these multilayered structures are found to sustain MCE over a broad temperature range, which makes them attractive for improved solid-state energy conversion devices.

AB - Present study reports the magnetocaloric effect (MCE) and piezoresponse of integrated ferroelectric-ferromagnetic heterostructures of PbZr0.52Ti0.48O3 (PZT) (5 nm)/ Bi-Sr-Ca-Cu2-OX (BSCCO) (5 nm)/ La0.67Sr0.33MnO3 (LSMO) (40 nm)/ MgO. Magnetic and pizoresponse behavior of the heterostructures are found to be governed by magneto-electric coupling and induced lattice strains. In addition, the MCE is studied using Maxwell equations from both Field Cooled (FC) and Zero Field Cooled (ZFC) magnetization data. Maximum MCE entropy change (|ΔS|) of 42.6 mJkg-1K-1 (at 258 K) and 41.7 mJkg-1K-1 (at 269 K) are found corresponding to FC and ZFC data, respectively. The variation in maximum entropy change and corresponding temperatures for FC and ZFC data revealed that the application of a magnetic field can significantly contribute towards tuning of the MCE. Interestingly, these multilayered structures are found to sustain MCE over a broad temperature range, which makes them attractive for improved solid-state energy conversion devices.

U2 - 10.1016/j.jmmm.2018.10.024

DO - 10.1016/j.jmmm.2018.10.024

M3 - Article

VL - 473

SP - 511

EP - 516

JO - Journal of Magnetism and Magnetic Materials

T2 - Journal of Magnetism and Magnetic Materials

JF - Journal of Magnetism and Magnetic Materials

SN - 0304-8853

ER -