Room-temperature magnetoelectric coupling in single-phase BaTiO 3-BiFeO3 system

Su Chul Yang; Ashok Kumar; Valeri Petkov; Shashank Priya

doi:10.1063/1.4799591

Room-temperature magnetoelectric coupling in single-phase BaTiO ₃-BiFeO₃ system

Su Chul Yang, Ashok Kumar, Valeri Petkov, Shashank Priya

Research output: Contribution to journal › Article › peer-review

103 Scopus citations

Abstract

In this paper, single-phase multiferroic ceramics of (1 - x) BaTiO ₃ - x BiFeO₃ (BT - x BFO) were synthesized by solid-solution method in the wide range of material composition (x = 0.025 - 1.0). The changes in crystal structure were confirmed via X-ray diffractions (XRD) and atomic pair distribution functions (PDFs). The room-temperature ME coupling was found to exhibit significant magnitude in the narrow composition window (x = 0.71 - 0.8) where the average crystal structure was found to be rhombohedral. Especially, the BT - 0.725 BFO ceramics containing local monoclinic distortions within rhombohedral phase were found to exhibit high room-temperature ME coefficient (α_ME) of 0.87 mV/cm·Oe with high piezoelectric properties (g₃₃ = 18.5 × 10 mV m N ^-1 and d₃₃ = 124 pC N^-1). We believe that the high room-temperature ME coupling in single-phase lead-free BT-BFO ceramics provides a possibility of developing electrically or magnetically tunable thin-film devices.

Original language	English
Article number	144101
Journal	Journal of Applied Physics
Volume	113
Issue number	14
DOIs	https://doi.org/10.1063/1.4799591
State	Published - Apr 14 2013

Access to Document

10.1063/1.4799591

Cite this

@article{a002c0b19a8447e39a2b8a672ec41384,

title = "Room-temperature magnetoelectric coupling in single-phase BaTiO 3-BiFeO3 system",

abstract = "In this paper, single-phase multiferroic ceramics of (1 - x) BaTiO 3 - x BiFeO3 (BT - x BFO) were synthesized by solid-solution method in the wide range of material composition (x = 0.025 - 1.0). The changes in crystal structure were confirmed via X-ray diffractions (XRD) and atomic pair distribution functions (PDFs). The room-temperature ME coupling was found to exhibit significant magnitude in the narrow composition window (x = 0.71 - 0.8) where the average crystal structure was found to be rhombohedral. Especially, the BT - 0.725 BFO ceramics containing local monoclinic distortions within rhombohedral phase were found to exhibit high room-temperature ME coefficient (αME) of 0.87 mV/cm·Oe with high piezoelectric properties (g33 = 18.5 × 10 mV m N -1 and d33 = 124 pC N-1). We believe that the high room-temperature ME coupling in single-phase lead-free BT-BFO ceramics provides a possibility of developing electrically or magnetically tunable thin-film devices.",

author = "Yang, {Su Chul} and Ashok Kumar and Valeri Petkov and Shashank Priya",

note = "Funding Information: The authors gratefully acknowledge the financial support from ARMDEC (S.-C. Yang) and Office of Naval Research (A. K. and S.P.) through the CEHMS seed program. We appreciate help from Dr. Dwight Viehland (Department of Materials Science and Engineering, Virginia Tech) for VSM measurement.",

year = "2013",

month = apr,

day = "14",

doi = "10.1063/1.4799591",

language = "English",

volume = "113",

journal = "Journal of Applied Physics",

issn = "0021-8979",

publisher = "JOURNAL OF APPLIED PHYSICS",

number = "14",

}

TY - JOUR

T1 - Room-temperature magnetoelectric coupling in single-phase BaTiO 3-BiFeO3 system

AU - Yang, Su Chul

AU - Kumar, Ashok

AU - Petkov, Valeri

AU - Priya, Shashank

N1 - Funding Information: The authors gratefully acknowledge the financial support from ARMDEC (S.-C. Yang) and Office of Naval Research (A. K. and S.P.) through the CEHMS seed program. We appreciate help from Dr. Dwight Viehland (Department of Materials Science and Engineering, Virginia Tech) for VSM measurement.

PY - 2013/4/14

Y1 - 2013/4/14

N2 - In this paper, single-phase multiferroic ceramics of (1 - x) BaTiO 3 - x BiFeO3 (BT - x BFO) were synthesized by solid-solution method in the wide range of material composition (x = 0.025 - 1.0). The changes in crystal structure were confirmed via X-ray diffractions (XRD) and atomic pair distribution functions (PDFs). The room-temperature ME coupling was found to exhibit significant magnitude in the narrow composition window (x = 0.71 - 0.8) where the average crystal structure was found to be rhombohedral. Especially, the BT - 0.725 BFO ceramics containing local monoclinic distortions within rhombohedral phase were found to exhibit high room-temperature ME coefficient (αME) of 0.87 mV/cm·Oe with high piezoelectric properties (g33 = 18.5 × 10 mV m N -1 and d33 = 124 pC N-1). We believe that the high room-temperature ME coupling in single-phase lead-free BT-BFO ceramics provides a possibility of developing electrically or magnetically tunable thin-film devices.

AB - In this paper, single-phase multiferroic ceramics of (1 - x) BaTiO 3 - x BiFeO3 (BT - x BFO) were synthesized by solid-solution method in the wide range of material composition (x = 0.025 - 1.0). The changes in crystal structure were confirmed via X-ray diffractions (XRD) and atomic pair distribution functions (PDFs). The room-temperature ME coupling was found to exhibit significant magnitude in the narrow composition window (x = 0.71 - 0.8) where the average crystal structure was found to be rhombohedral. Especially, the BT - 0.725 BFO ceramics containing local monoclinic distortions within rhombohedral phase were found to exhibit high room-temperature ME coefficient (αME) of 0.87 mV/cm·Oe with high piezoelectric properties (g33 = 18.5 × 10 mV m N -1 and d33 = 124 pC N-1). We believe that the high room-temperature ME coupling in single-phase lead-free BT-BFO ceramics provides a possibility of developing electrically or magnetically tunable thin-film devices.

UR - http://www.scopus.com/inward/record.url?scp=84876349137&partnerID=8YFLogxK

U2 - 10.1063/1.4799591

DO - 10.1063/1.4799591

M3 - Article

AN - SCOPUS:84876349137

SN - 0021-8979

VL - 113

JO - Journal of Applied Physics

JF - Journal of Applied Physics

IS - 14

M1 - 144101

ER -

Room-temperature magnetoelectric coupling in single-phase BaTiO ₃-BiFeO₃ system

Abstract

Access to Document

Other files and links

Fingerprint

Cite this