TY - JOUR
T1 - Effect of cation substitution on magnetic properties in Mn1−xA’xCr2S4 (A’ = Cd, Zn) thiospinel series
AU - Barahona Huenchumil, Patricia Mabel
AU - Galdámez Silva, Antonio César
AU - Manríquez Castro, Víctor
AU - Cruzat Contreras, Christian Americo
AU - Raison, Ch
AU - Le Coz, Xavier
AU - Chacón Andrade, Edgardo René
AU - Moure, Carlos
PY - 2007/1/1
Y1 - 2007/1/1
N2 - Colossal magnetoresistance (CMR) materials such as REMnO3 perovskites and AB2S4 thiospinels have been well studied in the past. The authors present thiospinel compounds with A = Mn, since they may be viewed as a link to REMnO3 CMR perovskites. Ferrimagnetic MnCr2S4 is known to present a T c of 65 K and a magnetic transition towards a non-collinear Yafet-Kittel state. The (Mn1−xA’x)Cr2S4 series (A = Cd, Zn) was synthesised at 850°C. This series crystallises in the space group Fd3m with a close to 10 Å. When A’ = Cd (T c ranging from 68 K, x = 0·2, to 79 K, x = 0·6), the ferromagnetic features are enhanced, indicating that antiferromagnetism between Mn spins is progressively lost. For A’ = Zn, two magnetic transitions take place, one at 15 K, which is reminiscent of the antiferromagnetic state of ZnCr2S4 and another one at T c = 115 K. Impurities which could be responsible of these two magnetic states are excluded.
AB - Colossal magnetoresistance (CMR) materials such as REMnO3 perovskites and AB2S4 thiospinels have been well studied in the past. The authors present thiospinel compounds with A = Mn, since they may be viewed as a link to REMnO3 CMR perovskites. Ferrimagnetic MnCr2S4 is known to present a T c of 65 K and a magnetic transition towards a non-collinear Yafet-Kittel state. The (Mn1−xA’x)Cr2S4 series (A = Cd, Zn) was synthesised at 850°C. This series crystallises in the space group Fd3m with a close to 10 Å. When A’ = Cd (T c ranging from 68 K, x = 0·2, to 79 K, x = 0·6), the ferromagnetic features are enhanced, indicating that antiferromagnetism between Mn spins is progressively lost. For A’ = Zn, two magnetic transitions take place, one at 15 K, which is reminiscent of the antiferromagnetic state of ZnCr2S4 and another one at T c = 115 K. Impurities which could be responsible of these two magnetic states are excluded.
KW - Ferrimagnetism Interacting; Sublattices; Cooperative phenomena; Spin reorientation
KW - Ferrimagnetism Interacting; Sublattices; Cooperative phenomena; Spin reorientation
UR - https://doi.org/10.35622/j.rr.2021.04.004
M3 - Artículo
SN - 1743-6761
JO - Advances in Applied Ceramics Structural, Functional and Bioceramics
JF - Advances in Applied Ceramics Structural, Functional and Bioceramics
ER -