Heat conduction and thermal expansion of YBa2Cu3O7−δ at low temperature

Sparn, G.; Schiebeling, W.; Lang, M.; Held, R.; Gottwick, U.; Steglich, F.; Rietschel, H.

doi:10.1016/S0921-4534(88)80200-4

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Heat conduction and thermal expansion of YBa₂Cu₃O_7−δ at low temperature

Sparn, G., Schiebeling, W., Lang, M., Held, R., Gottwick, U., Steglich, F., et al. (1988). Heat conduction and thermal expansion of YBa₂Cu₃O_7−δ at low temperature. Physica C, 153, 1010-1011. doi:10.1016/S0921-4534(88)80200-4.

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Item Permalink: https://hdl.handle.net/11858/00-001M-0000-0019-D49C-B Version Permalink: https://hdl.handle.net/11858/00-001M-0000-0019-D49D-9

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Sparn, G.¹, Author
Schiebeling, W.¹, Author
Lang, M.¹, Author
Held, R.¹, Author
Gottwick, U.¹, Author
Steglich, F.², Author
Rietschel, H.¹, Author

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1external, ou_persistent22
2External Organizations, ou_persistent22

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Abstract: The thermal conductivity к(T) of sintered YBa2Cu3O7-δ samples follows a T3 dependence for T ≦ 0.8K due to the phonon size effect. For superconducting material (δ = 0.1), an additional linear term AT exists in к(T) which is absent in the semiconducting samples (δ > 0:63). This aT term is attributed to some low-energy excitations different from phonons. The low-T thermal expansion of all samples studied is dominated by extrinsic effects.

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Dates: Date issued: 1988-08-08

Publication Status: Issued

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Identifiers: ISI: A1988P410000445
DOI: 10.1016/S0921-4534(88)80200-4

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Title: Physica C

Source Genre: Journal

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Publ. Info: Amsterdam : North-Holland

Pages: - Volume / Issue: 153 Sequence Number: - Start / End Page: 1010 - 1011 Identifier: ISSN: 0921-4534
CoNE: https://pure.mpg.de/cone/journals/resource/954925564683_1