Sökning: WFRF:(Papawassiliou Wassilios)
> (2022) >
Frustration and 120...
Frustration and 120° Magnetic Ordering in the Layered Triangular Antiferromagnets AFe(PO3F)2 (A = K, (NH4)2Cl, NH4, Rb, and Cs)
-
- Siebeneichler, Stefanie (författare)
- Stockholms universitet,Institutionen för material- och miljökemi (MMK)
-
- Dorn, Katharina V. (författare)
- Stockholms universitet,Institutionen för material- och miljökemi (MMK)
-
- Ovchinnikov, Alexander (författare)
- Stockholms universitet,Institutionen för material- och miljökemi (MMK)
-
visa fler...
-
- Papawassiliou, Wassilios, 1991- (författare)
- Stockholms universitet,Institutionen för material- och miljökemi (MMK)
-
da Silva, Ivan (författare)
-
- Smetana, Volodymyr (författare)
- Stockholms universitet,Institutionen för material- och miljökemi (MMK)
-
Pell, Andrew J. (författare)
-
- Mudring, Anja-Verena (författare)
- Stockholms universitet,Institutionen för material- och miljökemi (MMK),Aarhus University, Denmark
-
visa färre...
-
(creator_code:org_t)
- 2022-08-15
- 2022
- Engelska.
-
Ingår i: Chemistry of Materials. - : American Chemical Society (ACS). - 0897-4756 .- 1520-5002. ; 34:17, s. 7982-7994
- Relaterad länk:
-
https://doi.org/10.1...
-
visa fler...
-
https://urn.kb.se/re...
-
https://doi.org/10.1...
-
visa färre...
Abstract
Ämnesord
Stäng
- A new family of oxofluorophoshates, AFe(PO3F)2 (A = K, (NH4)2Cl, NH4, Rb, and Cs), was synthesized via ionothermal methods using PF6 ionic liquids. Single-crystal and powder X-ray diffraction reveal that AFe(PO3F)2 with A = (NH4)2Cl crystallizes in a trigonal structure, while AFe(PO3F)2 with A = NH4, Rb, and Cs crystallizes in a triclinic structure. Dimorphic KFe(PO3F)2 crystallizes in both the trigonal and triclinic forms. The structures of all compounds feature Yavapaiite-like Fe(PO3F)2 slabs, which are characterized by triangular Fe layers, planar in the case of the trigonal structure and undulated in the case of the triclinic one. Magnetization measurements reveal all compounds to order antiferromagnetically at low temperatures. The trigonal phases AFe(PO3F)2 (A = K and (NH4)2Cl) display complex magnetic H–T phase diagrams. The observation of magnetization plateaus at Msat/3 (Msat = saturation magnetization) indicates the existence of the up–up–down (UUD) and V-phases at applied magnetic fields in the magnetically ordered state. Powder neutron diffraction measurements of KFe(PO3F)2 confirm the 120° spin structure at zero fields. Along c, the magnetic moments form a commensurate spiral since the spins in each plane are rotated by 90° with respect to the adjacent one. To our knowledge, this is the first time such a non-centrosymmetric version of the 120° spin structure with a 90° rotation between nearest planes has been reported.
Ämnesord
- NATURVETENSKAP -- Kemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences (hsv//eng)
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
Hitta via bibliotek
Till lärosätets databas