Crystal and magnetic structures of the brownmillerite Ca2Cr2O5

被引：12

作者：

Arevalo-Lopez, Angel M.

Attfield, J. Paul ^{[1
]}

机构：

[1] Univ Edinburgh, Ctr Sci Extreme Condit, Edinburgh EH9 3FD, Midlothian, Scotland

来源：

DALTON TRANSACTIONS | 2015年 / 44卷 / 23期

基金：

英国工程与自然科学研究理事会;

关键词：

HARD-SOFT SYNTHESIS; DIFFRACTION; PEROVSKITES; VACANCY; SERIES;

D O I：

10.1039/c4dt03780d

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Powder neutron diffraction and magnetic susceptibility measurements at 10-300 K have been used to determine the crystal and magnetic structures of brownmillerite type Ca2Cr2O5, which was obtained by reduction of the high pressure phase CaCrO3 through hard-soft chemistry. The ambient temperature crystal structure of Ca2Cr2O5 is refined in space group I2mb and the unusual tetrahedral coordination of Cr3+ results in local structural distortions. Cr3+ spins order antiferromagnetically below 220 K and a substantial observed canting of moments shows that Heisenberg exchange is weak or frustrated and competes with antisymmetric Dzialoshinskii-Moriya interactions.

引用

页码：10661 / 10664

页数：4

共 50 条

[41] Single-Crystal Neutron Diffraction Study of Superstructure Ordering and Domain Behaviour in Brownmillerite-Type Ca2Fe2O5
Auckett, Josie E.
Studer, Andrew J.
Ling, Chris D.
AUSTRALIAN JOURNAL OF CHEMISTRY, 2014, 67 (12) : 1824 - 1828
[42] Structure determination of a brownmillerite Ca2Co2O5 thin film by precession electron diffraction
Boullay, P.
Dorcet, V.
Perez, O.
Grygiel, C.
Prellier, W.
Mercey, B.
Hervieu, M.
PHYSICAL REVIEW B, 2009, 79 (18)
[43] Evolution of magnetic and crystal structures in the multiferroic FeTe2O5Br
Pregelj, M.
Jeglic, P.
Zorko, A.
Zaharko, O.
Apih, T.
Gradisek, A.
Komelj, M.
Berger, H.
Arcon, D.
PHYSICAL REVIEW B, 2013, 87 (14):
[44] Rapid Catalytic Water Disinfection from Earth Abundant Ca2Fe2O5 Brownmillerite
Vanags, Martins
Mezule, Linda
Spule, Arnita
Kostjukovs, Juris
Smits, Krisjanis
Tamm, Aile
Juhna, Tails
Vihodceva, Svetlana
Kaambre, Tanel
Baumane, Larisa
Zacs, Dzintars
Vasiliev, Grigory
Turks, Maris
Mierina, Inese
Sherrell, Peter C.
Sutka, Andris
ADVANCED SUSTAINABLE SYSTEMS, 2021, 5 (12):
[45] CRYSTALLOGRAPHIC PROPERTIES OF CA2FE2O5 - DIFFERENCE IN CRYSTALLOGRAPHIC PROPERTIES OF BROWNMILLERITE-LIKE COMPOUNDS, CA2FE2O5 AND SR2FE2O5, AT ELEVATED-TEMPERATURES
SHIN, S
YONEMURA, M
IKAWA, H
BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN, 1979, 52 (03) : 947 - 948
[46] (CA1-XPRX)2(CO1-YALY)2O5, A BROWNMILLERITE STRUCTURE
LEE, JY
SWINNEA, JS
STEINFINK, H
ACTA CRYSTALLOGRAPHICA SECTION C-CRYSTAL STRUCTURE COMMUNICATIONS, 1991, 47 : 1532 - 1534
[47] Neutron Laue diffraction study of the complex low-temperature magnetic behaviour of brownmillerite-type Ca2Fe2O5
Auckett, Josie E.
McIntyre, Garry J.
Avdeev, Maxim
De Bruyn, Hank
Tan, Thiam Teck
Li, Sean
Ling, Chris D.
JOURNAL OF APPLIED CRYSTALLOGRAPHY, 2015, 48 : 273 - 279
[48] Thermoelectric properties of the Brownmillerite oxide Ca2-yLayCo2-xAlxO5
Kobayashi, W
Satake, A
Terasaki, I
JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS BRIEF COMMUNICATIONS & REVIEW PAPERS, 2002, 41 (5A): : 3025 - 3028
[49] Magnetic Properties of the Nano Brownmillerite KBiFe2O5: Monte Carlo Simulations
El Housni, I.
Mtougui, S.
El Mekkaoui, N.
Khalladi, R.
Idrissi, S.
Ziti, S.
Labrim, H.
Bahmad, L.
SPIN, 2021, 11 (01)
[50] Cation order imaging and magnetic properties in the Ca2Fe2-xGaxO5 brownmillerite (0 ≤ x ≤ 1)
Moussa, C.
Monnier, L.
Pelloquin, D.
Maignan, A.
JOURNAL OF SOLID STATE CHEMISTRY, 2018, 265 : 129 - 134

← 1 2 3 4 5 →