Impact of perovskite layer stacking on dielectric responses in KCa 2 Nan-3 Nbn O3n+1 (n=3-6) Dion-Jacobson homologous series

Bao Wen Li; Minoru Osada; Yasuo Ebina; Tadashi C. Ozawa; Renzhi Ma; Takayoshi Sasaki

doi:10.1063/1.3402761

Impact of perovskite layer stacking on dielectric responses in KCa ₂ Na_n-3 Nb_n O_3n+1 (n=3-6) Dion-Jacobson homologous series

Bao Wen Li^*, Minoru Osada, Yasuo Ebina, Tadashi C. Ozawa, Renzhi Ma, Takayoshi Sasaki

^*Corresponding author for this work

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

28 Citations (Scopus)

Abstract

The dielectric properties of KCa₂ Na_n-3 Nb _n O_3n+1 (n=3-6) Dion-Jacobson homologous series have been investigated. The dielectric constants (ε) increase with the number of octahedral units (n), and the n=6 compound (KCa₂ Na₃ Nb₆ O₁₉) exhibits a stable dielectric response with ε=∼500 between 1 kHz and 1 MHz. This n -dependent behavior is similar to those observed in other layered perovskites such as Ruddlesden-Popper and Aurivillius phases. Raman scattering studies reveal that increase in n in KCa₂ Na_n-3 Nb_n O_3n+1 leads to higher polarizability of the lattice and softening of the lowest-frequency phonon mode, which is responsible for the observed enhancement in ε with n.

Original language	English
Article number	182903
Journal	Applied Physics Letters
Volume	96
Issue number	18
DOIs	https://doi.org/10.1063/1.3402761
Publication status	Published - 2010
Externally published	Yes

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

Access to Document

10.1063/1.3402761

Cite this

@article{75c4b923c3e0484694b128ed1ebb2a0a,

title = "Impact of perovskite layer stacking on dielectric responses in KCa 2 Nan-3 Nbn O3n+1 (n=3-6) Dion-Jacobson homologous series",

abstract = "The dielectric properties of KCa2 Nan-3 Nb n O3n+1 (n=3-6) Dion-Jacobson homologous series have been investigated. The dielectric constants (ε) increase with the number of octahedral units (n), and the n=6 compound (KCa2 Na3 Nb6 O19) exhibits a stable dielectric response with ε=∼500 between 1 kHz and 1 MHz. This n -dependent behavior is similar to those observed in other layered perovskites such as Ruddlesden-Popper and Aurivillius phases. Raman scattering studies reveal that increase in n in KCa2 Nan-3 Nbn O3n+1 leads to higher polarizability of the lattice and softening of the lowest-frequency phonon mode, which is responsible for the observed enhancement in ε with n.",

author = "Li, {Bao Wen} and Minoru Osada and Yasuo Ebina and Ozawa, {Tadashi C.} and Renzhi Ma and Takayoshi Sasaki",

year = "2010",

doi = "10.1063/1.3402761",

language = "English",

volume = "96",

journal = "Applied Physics Letters",

issn = "0003-6951",

publisher = "American Institute of Physics Publising LLC",

number = "18",

}

TY - JOUR

T1 - Impact of perovskite layer stacking on dielectric responses in KCa 2 Nan-3 Nbn O3n+1 (n=3-6) Dion-Jacobson homologous series

AU - Li, Bao Wen

AU - Osada, Minoru

AU - Ebina, Yasuo

AU - Ozawa, Tadashi C.

AU - Ma, Renzhi

AU - Sasaki, Takayoshi

PY - 2010

Y1 - 2010

N2 - The dielectric properties of KCa2 Nan-3 Nb n O3n+1 (n=3-6) Dion-Jacobson homologous series have been investigated. The dielectric constants (ε) increase with the number of octahedral units (n), and the n=6 compound (KCa2 Na3 Nb6 O19) exhibits a stable dielectric response with ε=∼500 between 1 kHz and 1 MHz. This n -dependent behavior is similar to those observed in other layered perovskites such as Ruddlesden-Popper and Aurivillius phases. Raman scattering studies reveal that increase in n in KCa2 Nan-3 Nbn O3n+1 leads to higher polarizability of the lattice and softening of the lowest-frequency phonon mode, which is responsible for the observed enhancement in ε with n.

AB - The dielectric properties of KCa2 Nan-3 Nb n O3n+1 (n=3-6) Dion-Jacobson homologous series have been investigated. The dielectric constants (ε) increase with the number of octahedral units (n), and the n=6 compound (KCa2 Na3 Nb6 O19) exhibits a stable dielectric response with ε=∼500 between 1 kHz and 1 MHz. This n -dependent behavior is similar to those observed in other layered perovskites such as Ruddlesden-Popper and Aurivillius phases. Raman scattering studies reveal that increase in n in KCa2 Nan-3 Nbn O3n+1 leads to higher polarizability of the lattice and softening of the lowest-frequency phonon mode, which is responsible for the observed enhancement in ε with n.

UR - http://www.scopus.com/inward/record.url?scp=77952802616&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=77952802616&partnerID=8YFLogxK

U2 - 10.1063/1.3402761

DO - 10.1063/1.3402761

M3 - Article

AN - SCOPUS:77952802616

SN - 0003-6951

VL - 96

JO - Applied Physics Letters

JF - Applied Physics Letters

IS - 18

M1 - 182903

ER -

Impact of perovskite layer stacking on dielectric responses in KCa ₂ Na_n-3 Nb_n O_3n+1 (n=3-6) Dion-Jacobson homologous series

Abstract

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this