Variation of magnetic ground state of Sr1-xCaxCo2P2 determined with mu(+) SR
2015 (English)In: Physical Review B. Condensed Matter and Materials Physics, ISSN 1098-0121, E-ISSN 1550-235X, Vol. 91, no 14, 144423Article in journal (Refereed) Published
In order to study the variation of a microscopic internal magnetic field with the Ca content (x), we have systematically measured muon-spin rotation and relaxation (mu+SR) spectra for Sr1-xCaxCo2P2 (0 <= x <= 1) powder samples mainly in a zero external field. As x increases from 0, a Pauli-paramagnetic phase is observed even at the lowest T measured (1.8 K) until x = 0.45; then, a short-range antiferromagnetic (AF) ordered phase appears for 0.48 <= x <= 0.75, and finally a long-range AF ordered phase is stabilized for x >= 0.75. The evolution of the magnetic order is connected to the shrinking of the c-axis length as a function of x, which naturally enhances the AF interaction between the two adjacent Co planes.
Place, publisher, year, edition, pages
2015. Vol. 91, no 14, 144423
IdentifiersURN: urn:nbn:se:kth:diva-171689DOI: 10.1103/PhysRevB.91.144423ISI: 000353635700003ScopusID: 2-s2.0-84928911768OAI: oai:DiVA.org:kth-171689DiVA: diva2:844937
QC 201508102015-08-102015-08-052015-08-10Bibliographically approved