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Crystal structure and ferromagnetism of the CeFe$_9$Si$_4$ intermetallic compound
ID Koželj, Primož (Avtor), ID Boulet, Pascal (Avtor), ID Dolinšek, Janez (Avtor), et al.

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Izvleček
We have determined the crystal structure and the magnetic state of the CeFe$_9$Si$_4$ intermetallic compound. Our revised structural model (fully ordered tetragonal unit cell, I4/mcm) agrees with the previous literature report, except for some minor quantitative differences. Magnetically, the CeFe$_9$Si$_4$ undergoes a ferromagnetic transition at the temperature TC ≈ 94 K. Ferromagnetism in the combined Ce−Fe spin system is a result of interplay between the localized magnetism of the Ce sublattice and the Fe band (itinerant) magnetism. Ferromagnetic ordering obeys the rather general rule that the exchange spin coupling between atoms possessing more than half-full d shells with atoms possessing less than half-full d shells is antiferromagnetic (where the Ce atoms are considered as light d elements). Since in rare-earth metals from the light half of the lanthanide series, the magnetic moment is directed opposite to the spin, this results in ferromagnetism. The magnetoresistance and the magnetic specific heat show an additional temperature-dependent feature (a shoulder) deep inside the ferromagnetic phase that is considered to originate from the influence of the magnetization on the electronic band structure via the magnetoelastic coupling, which alters the Fe band magnetism below T$_C$. The ferromagnetic phase of CeFe$_9$Si$_4$ is magnetically soft.

Jezik:Angleški jezik
Ključne besede:crystal structure, diffraction, magnetic properties, phase transitions, intermetallic compounds, quantum mechanics
Vrsta gradiva:Članek v reviji
Tipologija:1.01 - Izvirni znanstveni članek
Organizacija:FMF - Fakulteta za matematiko in fiziko
Status publikacije:Objavljeno
Različica publikacije:Objavljena publikacija
Leto izida:2023
Št. strani:Str. 6169-6180
Številčenje:Vol. 62, iss. 15
PID:20.500.12556/RUL-147223 Povezava se odpre v novem oknu
UDK:537
ISSN pri članku:1520-510X
DOI:10.1021/acs.inorgchem.3c00547 Povezava se odpre v novem oknu
COBISS.SI-ID:148177411 Povezava se odpre v novem oknu
Datum objave v RUL:27.06.2023
Število ogledov:311
Število prenosov:49
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Gradivo je del revije

Naslov:Inorganic chemistry
Skrajšan naslov:Inorg. chem.
Založnik:American Chemical Society
ISSN:1520-510X
COBISS.SI-ID:512805401 Povezava se odpre v novem oknu

Licence

Licenca:CC BY 4.0, Creative Commons Priznanje avtorstva 4.0 Mednarodna
Povezava:http://creativecommons.org/licenses/by/4.0/deed.sl
Opis:To je standardna licenca Creative Commons, ki daje uporabnikom največ možnosti za nadaljnjo uporabo dela, pri čemer morajo navesti avtorja.

Sekundarni jezik

Jezik:Slovenski jezik
Ključne besede:kristalna struktura

Projekti

Financer:ARRS - Agencija za raziskovalno dejavnost Republike Slovenije
Številka projekta:P1-0125
Naslov:Fizika kvantnih in funkcionalnih materialov

Financer:ARRS - Agencija za raziskovalno dejavnost Republike Slovenije
Številka projekta:P2-0084
Naslov:Nanostrukturni materiali

Financer:Drugi - Drug financer ali več financerjev
Program financ.:CNRS, INC, International Research Project
Naslov:Push-Pull Alloys and Complex Compounds
Akronim:PACS2

Financer:Drugi - Drug financer ali več financerjev
Program financ.:Université de Lorraine, International Research Project
Naslov:Push-Pull Alloys and Complex Compounds
Akronim:PACS2

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