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Investigation into the itinerant metamagnetism of Sr3Ru2O7 for the field parallel to the ruthenium oxygen planes

Perry, RS; Tayama, T; Kitagawa, K; Sakakibara, T; Ishida, K; Maeno, Y; (2005) Investigation into the itinerant metamagnetism of Sr3Ru2O7 for the field parallel to the ruthenium oxygen planes. Journal of the Physical Society of Japan , 74 (4) pp. 1270-1274. 10.1143/JPSJ.74.1270. Green open access

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Abstract

We report a detailed investigation into the metamagnetism of Sr 3 Ru 2 O 7 at low temperatures for the magnetic field parallel to the ruthenium oxygen planes. The metamagnetism is studied as a function of temperature, magnetic field and sample quality using magnetisation, magnetotransport and specific heat as probes. From hysteretic behaviour in the magnetisation, we confirm earlier work and observe a finite temperature critical point at (5 T, >0.25 K). In our highest quality samples two-step metamagnetic transitions are additionally observed at 5.8 T and at 6.3 T, which coincide with a range of broad maximum in the magnetoresistance. At low temperatures, these two metamagnetic features each further split in two. Such behaviour of the multiple transitions are qualitatively different from the first order transition at 5.1 T.

Type: Article
Title: Investigation into the itinerant metamagnetism of Sr3Ru2O7 for the field parallel to the ruthenium oxygen planes
Open access status: An open access version is available from UCL Discovery
DOI: 10.1143/JPSJ.74.1270
Publisher version: https://doi.org/10.1143/JPSJ.74.1270
Language: English
Additional information: This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions.
Keywords: Strongly correlated, metamagnetism, Sr3Ru2O7, magnetisation, magnetoresistance, quantum critical point
UCL classification: UCL
UCL > Provost and Vice Provost Offices
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > London Centre for Nanotechnology
URI: https://discovery.ucl.ac.uk/id/eprint/10134084
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