SIEBENEICHLER, STEFANIEOVCHINNIKOV, ALEXANDERBOSCH-SANTOS, BRIANNACABRERA‑PASCA, GABRIEL A.FLACAU, ROXANAHUANG, QINGZHENCARBONARI, ARTUR W.RYAN, DOMINICMUDRING, ANJA‑VERENA2022-08-152022-08-152022SIEBENEICHLER, STEFANIE; OVCHINNIKOV, ALEXANDER; BOSCH-SANTOS, BRIANNA; CABRERA‑PASCA, GABRIEL A.; FLACAU, ROXANA; HUANG, QINGZHEN; CARBONARI, ARTUR W.; RYAN, DOMINIC; MUDRING, ANJA‑VERENA. Magnetic phase diagram of the solid solution LaMn2(Ge1−xSix)2 (0≤x≤1) unraveled by powder neutron diffraction. <b>Scientific Reports</b>, v. 12, n. 1, p. 1-16, 2022. DOI: <a href="https://dx.doi.org/10.1038/s41598-022-12549-y">10.1038/s41598-022-12549-y</a>. Disponível em: http://repositorio.ipen.br/handle/123456789/33214.2045-2322http://repositorio.ipen.br/handle/123456789/33214The structural and magnetic properties of the ThCr2Si2-type solid solution LaMn2(Ge1−xSix)2 (x = 0.0 to 1.0) have been investigated employing a combination of X-ray diffraction, magnetization and neutron diffraction measurements, which allowed establishing a magnetic composition-temperature phase diagram. Substitution of Ge by Si leads to a compression of the unit cell, which affects the magnetic exchange interactions. In particular, the magnetic structure of LaMn2(Ge1−xSix)2 is strongly affected by the unit cell parameter c, which is related to the distance between adjacent Mn layers. Commensurate antiferromagnetic layers and a canted ferromagnetic structure dominate the Si-rich part of the solid solution, whilst an incommensurate antiferromagnetic flat spiral and a conical magnetic structure are observed in the Si-poor part.1-16openAccesssolid solutionsphase diagramscrystal structureneutron diffractionferromagnetic materialsArtigo de periódico11210.1038/s41598-022-12549-y0000-0002-4499-5949https://orcid.org/0000-0002-4499-594970.592