A-Site Columnar-Ordered Perovskite CaZnV 2 O 6 as a Pauli-Paramagnetic Metal

• Published in: Inorganic chemistry Vol. 62; no. 21; pp. 8372 - 8378
• Main Authors: Fukuda, Masayuki, Nishikubo, Takumi, Yu, Hongwu, Okimoto, Yoichi, Koshihara, Shin-Ya, Yamaura, Kazunari, Azuma, Masaki
• Format: Journal Article
• Language: English
• Published: United States 29-05-2023
• ISSN: 0020-1669; 1520-510X
• DOI: 10.1021/acs.inorgchem.3c00940

In this study, we successfully synthesized a novel A-site columnar-ordered perovskite CaZnV
O
. This compound features a square-planar-coordinated Zn
disorder, which is the same characteristic as the centrosymmetric paraelectric CaMnTi
O
. Unlike CaMnTi
O
, which shows a centrosymmetric paraelectric-noncentrosymmetric ferroelectric transition, CaZnV
O
retains Pauli-paramagnetic metallicity arising from itinerant V
d
electrons and centrosymmetry down to 5 K. Based on analogous compounds, we expect CaZnV
O
to provide a new playground for the electronic and magnetic states of V
.