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  Low-temperature specific heat of Sr2RuO4

Langhammer, C., Steglich, F., Lang, M., & Sasaki, T. (2002). Low-temperature specific heat of Sr2RuO4. European Physical Journal B, 26(4), 413-416. doi:10.1140/epjb/e20020108.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-0015-3169-B Version Permalink: http://hdl.handle.net/11858/00-001M-0000-0018-00FA-3
Genre: Journal Article

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 Creators:
Langhammer, C.1, Author              
Steglich, F.2, Author              
Lang, M.1, Author              
Sasaki, T., Author
Affiliations:
1Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863404              
2Frank Steglich, Physics of Quantum Materials, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863467              

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 Abstract: We report low-temperature measurements 0.07 K less than or equal to T less than or equal to 2 K of the specific heat, C, of the perovskite superconductor Sr2RuO4. Based on a detailed analysis of our data with respect to both sample quality (as measured by T-c = 0.43 K - 1.17 K) and magnetic-field dependence, it is shown that the electronic contribution to the specific heat, which contains the desired information on the gap structure, is superimposed by at least two additional contributions: a Schottky-type hump at T approximate to 0.1-0.2 K and a low-temperature upturn in C/T at T < 0.1 K. We discuss possible origins of these additional contributions and their implications for the interpretation of low-temperature C(T) data.

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Language(s): eng - English
 Dates: 2002-04
 Publication Status: Published in print
 Pages: -
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 Table of Contents: -
 Rev. Method: Peer
 Identifiers: eDoc: 17785
ISI: 000175859600003
DOI: 10.1140/epjb/e20020108
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Title: European Physical Journal B
  Alternative Title : Eur. Phys. J. B
Source Genre: Journal
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Pages: - Volume / Issue: 26 (4) Sequence Number: - Start / End Page: 413 - 416 Identifier: ISSN: 1434-6028