Research output: Contribution to journal › Article › peer-review
NMR and dielectric studies of ferroelectric nanocomposites with KDP. / Uskova, N. I.; Podorozhkin, D. Yu; Charnaya, E. V.; Baryshnikov, S. V.; Milinskiy, A. Yu; Nefedov, D. Yu; Bugaev, A. S.; Lee, M. K.; Chang, L. J.
In: Ferroelectrics, Vol. 514, No. 1, 04.07.2017, p. 50-60.Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - NMR and dielectric studies of ferroelectric nanocomposites with KDP
AU - Uskova, N. I.
AU - Podorozhkin, D. Yu
AU - Charnaya, E. V.
AU - Baryshnikov, S. V.
AU - Milinskiy, A. Yu
AU - Nefedov, D. Yu
AU - Bugaev, A. S.
AU - Lee, M. K.
AU - Chang, L. J.
PY - 2017/7/4
Y1 - 2017/7/4
N2 - Ferroelectricity was studied for the nanocomposites consisted of KDP loaded MCM-41 molecular sieves and porous glass with pore sizes 3.8 and 7 nm, respectively. Studies were carried out by NMR and dielectric techniques. The ferroelectric phase transition in the MCM-41 nanocomposite was shifted by 0.4 K to high temperature, while the ferroelectric transition in the porous glass nanocomposite was not found. The different ferroelectric behavior of the MCM-41 and porous glass nanocomposites with KDP was ascribed to the impact of the interparticle coupling. The 31P MAS NMR measurements showed that the isotropic chemical shift at room temperature was the same for nanocomposites and bulk KDP. This result confirmed the similarity of the crystalline structure of confined particles and bulk KDP. The chemical shift tensor parameters below the ferroelectric phase transition were calculated for bulk KDP and KDP confined to MCM-41 molecular sieves.
AB - Ferroelectricity was studied for the nanocomposites consisted of KDP loaded MCM-41 molecular sieves and porous glass with pore sizes 3.8 and 7 nm, respectively. Studies were carried out by NMR and dielectric techniques. The ferroelectric phase transition in the MCM-41 nanocomposite was shifted by 0.4 K to high temperature, while the ferroelectric transition in the porous glass nanocomposite was not found. The different ferroelectric behavior of the MCM-41 and porous glass nanocomposites with KDP was ascribed to the impact of the interparticle coupling. The 31P MAS NMR measurements showed that the isotropic chemical shift at room temperature was the same for nanocomposites and bulk KDP. This result confirmed the similarity of the crystalline structure of confined particles and bulk KDP. The chemical shift tensor parameters below the ferroelectric phase transition were calculated for bulk KDP and KDP confined to MCM-41 molecular sieves.
KW - Ferroelectric nanocomposite
KW - KDP
KW - NMR
KW - permittivity
KW - phase transition
UR - http://www.scopus.com/inward/record.url?scp=85029700250&partnerID=8YFLogxK
U2 - 10.1080/00150193.2017.1357980
DO - 10.1080/00150193.2017.1357980
M3 - Article
AN - SCOPUS:85029700250
VL - 514
SP - 50
EP - 60
JO - Ferroelectrics
JF - Ferroelectrics
SN - 0015-0193
IS - 1
ER -
ID: 36148643