Phase transitions with extremely small tetragonal distortion in substitution systems of CoV2O4 by high-angular-resolution synchrotron powder diffraction
Phase transitions with extremely small tetragonal distortion in substitution systems of CoV2O4 by high-angular-resolution synchrotron powder diffraction
复制标题
通过高角分辨率同步加速器粉末衍射观察 CoV2O4 取代系统中具有极小四方畸变的相变
DOI:
10.1016/j.jssc.2019.02.016
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发表时间:
2019
影响因子:
3.3
通讯作者:
Kubota Yoshiki
中科院分区:
文献类型:
--
作者:
Shimono Seiya;Ishibashi Hiroki;Kawaguchi Shogo;Kubota Yoshiki
Spinel-type CoV2O4compound shows cubic-to-tetragonal phase transition with a very small distortion (1 –c/a< 0.06%) atT* ∼ 90 K. The other structural phase transition accompanied by change in space group occurs atT2= 59 K. In this study, we investigated the substitution effects on successive structural phase transitions using the high-angular-resolution powder diffraction technique to clarify the origin of these unique phase transitions. In the Cr substitution system Co(V1–xCrx)2O4(0 ≤x≤ 0.25), while both of these structural transitions were suppressed, they disappeared at differentxvalues. By contrast, in the Mn substitution system (Co1–xMnx)V2O4(0 ≤x≤ 0.2), both of them remained. It was suggested that the phase transitions atT* andT2are dominantly related to the magnetic phase transition and orbital degree of freedom of V3+ions, respectively.
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DOI:
10.1143/jpsjs.81sb.sb030
发表时间:
2012
期刊:
J. Phys. Soc. Jpn.
影响因子:
--
作者:
A. Furukawa and H. Tanaka;Kazuhiro Hemmi
通讯作者:
Kazuhiro Hemmi
DOI:
10.1063/1.1728636
发表时间:
1962
期刊:
影响因子:
--
作者:
N. Menyuk;A. Wold;D. B. Rogers;K. Dwight
通讯作者:
K. Dwight
影响因子:
3.7
作者:
D. Reig;D. Casavant;V. Garlea;A. Aczel;Mikhail Feygenson;J. Neuefeind;H. D. Zhou;H. D. Zhou;S. Nagler;S. Nagler;Gregory MacDougall
通讯作者:
Gregory MacDougall
影响因子:
1.7
作者:
Katsufuji, Takuro;Suzuki, Takehito;Arima, Taka-hisa
通讯作者:
Arima, Taka-hisa