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231226s2022 xx |||||o 00| ||eng c |
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|a 10.1107/S1600576722007440
|2 doi
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|a pubmed24n1524.xml
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|a (NLM)36249493
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|a DE-627
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|c DE-627
|e rakwb
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|a eng
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|a Ait Haddouch, Mohammed
|e verfasserin
|4 aut
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|a Site dependence of the magnetocaloric effect in Mn5-x Fe x Si3
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|c 2022
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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|a ƒa Online-Ressource
|b cr
|2 rdacarrier
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|a Date Revised 05.09.2024
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|a published: Electronic-eCollection
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|a Citation Status PubMed-not-MEDLINE
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|a © Mohammed Ait Haddouch et al. 2022.
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|a The nuclear and magnetic structures of Mn3Fe2Si3 are investigated in the temperature range from 20 to 300 K. The magnetic properties of Mn3Fe2Si3 were measured on a single crystal. The compound undergoes a paramagnetic to antiferromagnetic transition at T N2 ≃ 120 K and an antiferromagnetic to antiferromagnetic transition at T N1 ≃ 69 K. A similar sequence of magnetic phase transitions is found for the parent compound Mn5Si3 upon temperature variation, but the field-driven transition observed in Mn5Si3 is not found in Mn3Fe2Si3, resulting in a strongly reduced magnetocaloric effect. Structurally, the hexagonal symmetry found for both compounds under ambient conditions is preserved in Mn3Fe2Si3 through both magnetic transitions, indicating that the crystal structure is only weakly affected by the magnetic phase transition, in contrast to Mn5Si3 where both transitions distort the nuclear structure. Both compounds feature a collinear high-temperature magnetic phase AF2 and transfer into a non-collinear phase AF1 at low temperature. While one of the distinct crystallographic sites remains disordered in the AF2 phase in the parent compound, the magnetic structure in the AF2 phase involves all magnetic atoms in Mn3Fe2Si3. These observations imply that the distinct sites occupied by the magnetic atoms play an important role in the magnetocaloric behaviour of the family
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|a Journal Article
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|a magnetic structure
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| 650 |
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4 |
|a magnetocaloric effect
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| 650 |
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4 |
|a neutron diffraction
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| 650 |
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4 |
|a site dependence
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| 650 |
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4 |
|a synchrotron diffraction
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| 700 |
1 |
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|a Abboushi, Nour
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Sharma, Neetika
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Eich, Andreas
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Grzechnik, Andrzej
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Li, Cheng
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Tolkiehn, Martin
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Alsamamra, Husain
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Voigt, Jörg
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Friese, Karen
|e verfasserin
|4 aut
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| 773 |
0 |
8 |
|i Enthalten in
|t Journal of applied crystallography
|d 1998
|g 55(2022), Pt 5 vom: 01. Okt., Seite 1164-1172
|w (DE-627)NLM098121561
|x 0021-8898
|7 nnns
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| 773 |
1 |
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|g volume:55
|g year:2022
|g number:Pt 5
|g day:01
|g month:10
|g pages:1164-1172
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| 856 |
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|u http://dx.doi.org/10.1107/S1600576722007440
|3 Volltext
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|d 55
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|e Pt 5
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|c 10
|h 1164-1172
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