Designing tunable band-gap and magnetization at room-temperature in Pb(Ti1-xMx)O3-δ (M=Ni and Pd) thin films

Wenliang Zhou; Hongmei Deng; Pingxiong Yang; Junhao Chu

doi:10.1016/j.matlet.2016.09.012

Designing tunable band-gap and magnetization at room-temperature in Pb(Ti_1-xM_x)O_3-δ (M=Ni and Pd) thin films

Wenliang Zhou
, Hongmei Deng
, Pingxiong Yang^*
, Junhao Chu

^*Corresponding author for this work

School of Physics and Electronic Science

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

6 Scopus citations

Abstract

The Pb(Ti_1-xM_x)O_3-δ (M=Ni and Pd) ferroelectric thin films prepared by a sol-gel technique have been studied by means of structural characterizations, optical and magnetic measurements. X-ray diffraction and Raman scattering results reflect the visible changes in average structure. Moreover, d⁸ M²⁺ doping has important effects on the energy band structure and magnetic orderings. Optical transmittance spectra analysis indicates that Pb(Ti_0.85Ni_0.15)O_3-δ and Pb(Ti_0.85Pd_0.15)O_3-δ thin films present small band-gaps of 2.67 eV and 2.55 eV, respectively. Also, the as-grown Pb(Ti_0.85M_0.15)O_3-δ thin films show room-temperature ferromagnetism, in contrast to PbTiO₃ which is diamagnetic. A bound magnetic polaron model can be employed to explain the observed ferromagnetic behavior.

Original language	English
Pages (from-to)	323-326
Number of pages	4
Journal	Materials Letters
Volume	185
DOIs	https://doi.org/10.1016/j.matlet.2016.09.012
State	Published - 15 Dec 2016

Keywords

Ferroelectrics
Optical and magnetic properties
Pb(TiM)O
Sol-gel preparation
Thin films

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10.1016/j.matlet.2016.09.012

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@article{6fee97a314e54e56b5c08159f3efd37d,

title = "Designing tunable band-gap and magnetization at room-temperature in Pb(Ti1-xMx)O3-δ (M=Ni and Pd) thin films",

abstract = "The Pb(Ti1-xMx)O3-δ (M=Ni and Pd) ferroelectric thin films prepared by a sol-gel technique have been studied by means of structural characterizations, optical and magnetic measurements. X-ray diffraction and Raman scattering results reflect the visible changes in average structure. Moreover, d8 M2+ doping has important effects on the energy band structure and magnetic orderings. Optical transmittance spectra analysis indicates that Pb(Ti0.85Ni0.15)O3-δ and Pb(Ti0.85Pd0.15)O3-δ thin films present small band-gaps of 2.67 eV and 2.55 eV, respectively. Also, the as-grown Pb(Ti0.85M0.15)O3-δ thin films show room-temperature ferromagnetism, in contrast to PbTiO3 which is diamagnetic. A bound magnetic polaron model can be employed to explain the observed ferromagnetic behavior.",

keywords = "Ferroelectrics, Optical and magnetic properties, Pb(TiM)O, Sol-gel preparation, Thin films",

author = "Wenliang Zhou and Hongmei Deng and Pingxiong Yang and Junhao Chu",

note = "Publisher Copyright: {\textcopyright} 2016 Elsevier B.V.",

year = "2016",

month = dec,

day = "15",

doi = "10.1016/j.matlet.2016.09.012",

language = "英语",

volume = "185",

pages = "323--326",

journal = "Materials Letters",

issn = "0167-577X",

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TY - JOUR

T1 - Designing tunable band-gap and magnetization at room-temperature in Pb(Ti1-xMx)O3-δ (M=Ni and Pd) thin films

AU - Zhou, Wenliang

AU - Deng, Hongmei

AU - Yang, Pingxiong

AU - Chu, Junhao

PY - 2016/12/15

Y1 - 2016/12/15

N2 - The Pb(Ti1-xMx)O3-δ (M=Ni and Pd) ferroelectric thin films prepared by a sol-gel technique have been studied by means of structural characterizations, optical and magnetic measurements. X-ray diffraction and Raman scattering results reflect the visible changes in average structure. Moreover, d8 M2+ doping has important effects on the energy band structure and magnetic orderings. Optical transmittance spectra analysis indicates that Pb(Ti0.85Ni0.15)O3-δ and Pb(Ti0.85Pd0.15)O3-δ thin films present small band-gaps of 2.67 eV and 2.55 eV, respectively. Also, the as-grown Pb(Ti0.85M0.15)O3-δ thin films show room-temperature ferromagnetism, in contrast to PbTiO3 which is diamagnetic. A bound magnetic polaron model can be employed to explain the observed ferromagnetic behavior.

AB - The Pb(Ti1-xMx)O3-δ (M=Ni and Pd) ferroelectric thin films prepared by a sol-gel technique have been studied by means of structural characterizations, optical and magnetic measurements. X-ray diffraction and Raman scattering results reflect the visible changes in average structure. Moreover, d8 M2+ doping has important effects on the energy band structure and magnetic orderings. Optical transmittance spectra analysis indicates that Pb(Ti0.85Ni0.15)O3-δ and Pb(Ti0.85Pd0.15)O3-δ thin films present small band-gaps of 2.67 eV and 2.55 eV, respectively. Also, the as-grown Pb(Ti0.85M0.15)O3-δ thin films show room-temperature ferromagnetism, in contrast to PbTiO3 which is diamagnetic. A bound magnetic polaron model can be employed to explain the observed ferromagnetic behavior.

KW - Ferroelectrics

KW - Optical and magnetic properties

KW - Pb(TiM)O

KW - Sol-gel preparation

KW - Thin films

UR - https://www.scopus.com/pages/publications/84986550283

U2 - 10.1016/j.matlet.2016.09.012

DO - 10.1016/j.matlet.2016.09.012

M3 - 文章

AN - SCOPUS:84986550283

SN - 0167-577X

VL - 185

SP - 323

EP - 326

JO - Materials Letters

JF - Materials Letters

ER -

Designing tunable band-gap and magnetization at room-temperature in Pb(Ti_1-xM_x)O_3-δ (M=Ni and Pd) thin films

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Keywords

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