Abstract
We have measured the specific heat of single crystals of the triple-layer Ruddlesden–Popper material, Sr 4Ru 3O 10, grown both in an image furnace (IF) and by flux-growth. The flux grown (FG) sample has a sharp mean-field-like anomaly at the onset of magnetic order, T C=102 K, but a much broader anomaly, indicative of residual heterogeneity, is observed for the IF sample. Even for the FG sample, however, the anomaly is at least an order of magnitude smaller than one would expect for complete ordering of the spins. Neither sample exhibits an anomaly at T M∼50 K, where magnetic measurements suggest that basal plane antiferromagnetism sets in. Anomalous behavior (e.g., consistent with a term in the specific heat ∝ T 3/2 as would be observed for a three-dimensional ferromagnet with weak exchange) is observed at low temperatures for both samples, indicative of the unusual magnetic order in this material.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
