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  Chemical physics of metallic clathrates with low carrier concentration

Steglich, F., Bentien, A., Baenitz, M., Carrillo-Cabrera, W., Grosche, F. M., Langhammer, C., et al. (2002). Chemical physics of metallic clathrates with low carrier concentration. Physica B, 318(1), 97-105. doi:10.1016/S0921-4526(02)00781-0.

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Steglich, F.1, Autor           
Bentien, A.2, Autor           
Baenitz, M.3, Autor           
Carrillo-Cabrera, W.4, Autor           
Grosche, F. M.2, Autor           
Langhammer, C.2, Autor           
Paschen, S.2, Autor           
Sparn, G.2, Autor           
Tran, V. H.2, Autor           
Yuan, H. Q.2, Autor           
Grin, Y.5, Autor           
Affiliations:
1Frank Steglich, Physics of Quantum Materials, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863467              
2Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863404              
3Michael Baenitz, Physics of Quantum Materials, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863471              
4Chemical Metal Science, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863405              
5Juri Grin, Chemical Metal Science, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863413              

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Schlagwörter: clathrates; bad metal; Ba6Ge25; Eu8Ga16Ge30; new materials
 Zusammenfassung: We discuss physical properties of two metallic clathrate compounds with low carrier concentration: Eu8Ga16Ge30, the first clathrate known to date, for which the 'guest' sites are fully occupied by 'rattling' lanthanide ions, and Ba6Ge25. Eu(8)Ga(16)G(30) exists in two modifications which both contain divalent Eu ions and order ferromagnetically at low temperatures (T-C = 10.5 K and 36 K, respectively). In Ba6Ge25 some of the 'rattling' Ba atoms lock, perhaps randomly, into split positions near 200 K. A BCS-like superconducting phase transition takes place at T-c = 0.14 K. T-c increases almost 20-fold, as the structural distortion is suppressed under hydrostatic pressure. (C) 2002 Elsevier Science B.V. All rights reserved.

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Sprache(n): eng - English
 Datum: 2002-05
 Publikationsstatus: Erschienen
 Seiten: -
 Ort, Verlag, Ausgabe: -
 Inhaltsverzeichnis: -
 Art der Begutachtung: Expertenbegutachtung
 Identifikatoren: eDoc: 18511
ISI: 000176459400017
DOI: 10.1016/S0921-4526(02)00781-0
 Art des Abschluß: -

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Titel: Physica B
  Alternativer Titel : Physica B
Genre der Quelle: Zeitschrift
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Ort, Verlag, Ausgabe: -
Seiten: - Band / Heft: 318 (1) Artikelnummer: - Start- / Endseite: 97 - 105 Identifikator: ISSN: 0921-4526