Abstract

This study reports the magnetocaloric effect (MCE) and piezoresponse of integrated ferroelectric-ferromagnetic heterostructures of PbZr 0.52Ti 0.48O 3 (PZT) (5 nm)/Bi-Sr-Ca-Cu 2-O X (BSCCO) (5 nm)/La 0.67Sr 0.33MnO 3 (LSMO) (40 nm)/MgO (0 0 1). Magnetic and pizoresponse behavior of the heterostructures are found to be governed by magneto-electric coupling and induced lattice strains. In addition, a maximum 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.

Original languageEnglish
Pages (from-to)511-516
Number of pages6
JournalJournal of Magnetism and Magnetic Materials
Volume473
Early online date6 Oct 2018
DOIs
Publication statusPublished - 1 Mar 2019

Keywords

  • Lattice strains
  • Magneto-electric coupling
  • Magnetocaloric effect
  • Multi-layered heterostructures

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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 = "This study reports the magnetocaloric effect (MCE) and piezoresponse of integrated ferroelectric-ferromagnetic heterostructures of PbZr 0.52Ti 0.48O 3 (PZT) (5 nm)/Bi-Sr-Ca-Cu 2-O X (BSCCO) (5 nm)/La 0.67Sr 0.33MnO 3 (LSMO) (40 nm)/MgO (0 0 1). Magnetic and pizoresponse behavior of the heterostructures are found to be governed by magneto-electric coupling and induced lattice strains. In addition, a maximum 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.",
keywords = "Lattice strains, Magneto-electric coupling, Magnetocaloric effect, Multi-layered heterostructures",
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 - This study reports the magnetocaloric effect (MCE) and piezoresponse of integrated ferroelectric-ferromagnetic heterostructures of PbZr 0.52Ti 0.48O 3 (PZT) (5 nm)/Bi-Sr-Ca-Cu 2-O X (BSCCO) (5 nm)/La 0.67Sr 0.33MnO 3 (LSMO) (40 nm)/MgO (0 0 1). Magnetic and pizoresponse behavior of the heterostructures are found to be governed by magneto-electric coupling and induced lattice strains. In addition, a maximum 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 - This study reports the magnetocaloric effect (MCE) and piezoresponse of integrated ferroelectric-ferromagnetic heterostructures of PbZr 0.52Ti 0.48O 3 (PZT) (5 nm)/Bi-Sr-Ca-Cu 2-O X (BSCCO) (5 nm)/La 0.67Sr 0.33MnO 3 (LSMO) (40 nm)/MgO (0 0 1). Magnetic and pizoresponse behavior of the heterostructures are found to be governed by magneto-electric coupling and induced lattice strains. In addition, a maximum 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.

KW - Lattice strains

KW - Magneto-electric coupling

KW - Magnetocaloric effect

KW - Multi-layered heterostructures

UR - http://www.scopus.com/inward/record.url?scp=85056476775&partnerID=8YFLogxK

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

JF - Journal of Magnetism and Magnetic Materials

SN - 0304-8853

ER -