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  Observation of quantum oscillations in Sr2RuO4

Mackenzie, A. P., Julian, S., Diver, A., McMullan, G., Lonzarich, G., Maeno, Y., et al. (1996). Observation of quantum oscillations in Sr2RuO4. In Proceedings of Physical Phenomena at High Magnetic Fields - II (pp. 537-42).

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-0018-EC4A-2 Version Permalink: http://hdl.handle.net/11858/00-001M-0000-0018-EC4C-D
Genre: Conference Paper

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 Creators:
Mackenzie, A. P.1, Author              
Julian, S.R.2, Author
Diver, A.J.2, Author
McMullan, G.J.2, Author
Lonzarich, G.G.2, Author
Maeno, Y.2, Author
Nishizaki, S.2, Author
Fujita, T.2, Author
Affiliations:
1External Organizations, ou_persistent22              
2external, ou_persistent22              

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 Abstract: Sr 2RuO 4 was recently discovered to be the first layered perovskite superconductor (T c=1 K) containing no copper. Its normal state properties are also of interest, because it is strongly two-dimensional, like the high Tc cuprates, but differs from them in the type and concentration of carriers. It thus provides us with a new opportunity to shed light on the relative roles of reduced dimensionality versus other aspects of the electronic structure in producing anomalous normal state properties in layered metallic oxides. Here we report the observation of quantum oscillations in the resistivity and magnetisation of Sr 2RuO 4. Our findings are consistent with the existence of three partially filled energy bands giving almost cylindrical Fermi surfaces, the areas of which are in fairly good agreement with the predictions of electronic energy band structure calculations. However the cyclotron masses are considerably enhanced, showing the importance of correlations. In spite of the low dimensionality of Sr 2RuO 4, our observations are consistent with the predictions of the standard Fermi liquid theory of correlated electron systems.

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 Dates: 1996-03-01
 Publication Status: Published in print
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 Identifiers: ISI: 5442974
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Title: Proceedings of Physical Phenomena at High Magnetic Fields II
Place of Event: Tallahassee, FL, USA
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Title: Proceedings of Physical Phenomena at High Magnetic Fields - II
Source Genre: Proceedings
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Pages: - Volume / Issue: - Sequence Number: - Start / End Page: 537 - 42 Identifier: -