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  Magnetic and structural properties of the double-perovskite Ca2FeReO6

Westerburg, W., Lang, O., Ritter, C., Felser, C., Tremel, W., & Jakob, G. (2002). Magnetic and structural properties of the double-perovskite Ca2FeReO6. Solid State Communications, 122(3-4): PII S0038-1098(02)00079-0, pp. 201-206. doi:10.1016/S0038-1098(02)00079-0.

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Westerburg, W1, Author
Lang, O1, Author
Ritter, C1, Author
Felser, C.2, Author           
Tremel, W1, Author
Jakob, G1, Author
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1external, ou_persistent22              
2External Organizations, ou_persistent22              

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 Abstract: We suceeded in the preparation of polycrystalline Ca2FeReO6 which has a Curie temperature T-C of 540 K, the highest value of all magnetic perovskites investigated till now. This material has been characterised by X-ray and neutron powder diffraction. We found at 548 K, a monoclinic unit cell (space group P2(1)/n) with a = 5.4366(5) Angstrom, b = 5.5393(5) Angstrom, c = 7.7344(5) Angstrom, and beta = 90.044(4)degrees. For temperatures below 400 K, a phase separation in two monoclinic phases with identical cell volume is observed in neutron scattering. The two phases possess different magnetic structure and coercivity. The conductivity is thermally activated for all temperatures and no significant magnetoresistivity is observed. (C) 2002 Elsevier Science Ltd. All rights reserved.

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 Dates: 2002-03-05
 Publication Status: Published in print
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Title: Solid State Communications
Source Genre: Journal
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Publ. Info: New York : Pergamon
Pages: - Volume / Issue: 122 (3-4) Sequence Number: PII S0038-1098(02)00079-0 Start / End Page: 201 - 206 Identifier: ISSN: 0038-1098
CoNE: https://pure.mpg.de/cone/journals/resource/954925445695