Gespeichert in:
| Weitere beteiligte Personen: | , |
|---|---|
| Format: | Elektronisch Tagungsbericht E-Book |
| Sprache: | Englisch |
| Veröffentlicht: |
Berlin, Heidelberg
Springer Berlin Heidelberg
1994
|
| Schlagwörter: | |
| Links: | https://doi.org/10.1007/978-3-642-78805-5 |
| Beschreibung: | Phase separation has become a fascinating subject in the discussion of cuprate superconductors. All these materials have layered structures containing CUO2 planes as the most important building blocks. They are coupled only weakly so that the electronic properties show a nearly two-dimensional behaviour. Due to correlations the undoped compounds are insulators of the MottHubbard type exhibiting long-range antiferromagnetic order. Upon doping a rich scenario of physical phenomena appears: Even at low hole concentrations the antiferromagnetic ordering temperature is reduced drastically and spin-glass behaviour as well as a hopping type conductivity can be observed. Further doping leads to metallic-like conductivity and below Tc to superconductivity. In this doping regime antiferromagnetic fluctuations are still observed. At very high charge carrier densities superconductivity is lost and the systems show pure metallic conduction without magnetic correlations. One of the most interesting phenomena in high-T c research is the interplay between magnetism and conductivity or superconductivity. Especially the behaviour of charge carriers in the antiferromagnetic background raises a number of open questions. Two scenarios become possible: the carriers tend to delocalize over the whole crystal forming a homogeneous state with band-like structure or they separate into hole-rich (conducting, superconducting) and hole-poor (insulating, antiferromagnetic) phases leading to an inhomogeneous structure |
| Umfang: | 1 Online-Ressource (XVII, 401 p) |
| ISBN: | 9783642788055 9783642788079 |
| DOI: | 10.1007/978-3-642-78805-5 |
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| 500 | |a Phase separation has become a fascinating subject in the discussion of cuprate superconductors. All these materials have layered structures containing CUO2 planes as the most important building blocks. They are coupled only weakly so that the electronic properties show a nearly two-dimensional behaviour. Due to correlations the undoped compounds are insulators of the MottHubbard type exhibiting long-range antiferromagnetic order. Upon doping a rich scenario of physical phenomena appears: Even at low hole concentrations the antiferromagnetic ordering temperature is reduced drastically and spin-glass behaviour as well as a hopping type conductivity can be observed. Further doping leads to metallic-like conductivity and below Tc to superconductivity. In this doping regime antiferromagnetic fluctuations are still observed. At very high charge carrier densities superconductivity is lost and the systems show pure metallic conduction without magnetic correlations. One of the most interesting phenomena in high-T c research is the interplay between magnetism and conductivity or superconductivity. Especially the behaviour of charge carriers in the antiferromagnetic background raises a number of open questions. Two scenarios become possible: the carriers tend to delocalize over the whole crystal forming a homogeneous state with band-like structure or they separate into hole-rich (conducting, superconducting) and hole-poor (insulating, antiferromagnetic) phases leading to an inhomogeneous structure | ||
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| genre | (DE-588)1071861417 Konferenzschrift 1993 Cottbus gnd-content |
| genre_facet | Konferenzschrift 1993 Cottbus |
| id | DE-604.BV042413643 |
| illustrated | Not Illustrated |
| indexdate | 2024-12-20T17:10:29Z |
| institution | BVB |
| institution_GND | (DE-588)2137682-7 |
| isbn | 9783642788055 9783642788079 |
| language | English |
| oai_aleph_id | oai:aleph.bib-bvb.de:BVB01-027849136 |
| oclc_num | 905420473 |
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| owner | DE-91 DE-BY-TUM DE-83 |
| owner_facet | DE-91 DE-BY-TUM DE-83 |
| physical | 1 Online-Ressource (XVII, 401 p) |
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| publishDate | 1994 |
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| publisher | Springer Berlin Heidelberg |
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| spellingShingle | Phase separation in cuprate superconductors Proceedings of the second international workshop on "Phase Separation in Cuprate Superconductors" September 4–10, 1993, Cottbus, Germany Physics Strongly Correlated Systems, Superconductivity Phasenumwandlung (DE-588)4132140-6 gnd Hochtemperatursupraleiter (DE-588)4220922-5 gnd Supraleiter (DE-588)4184140-2 gnd Cuprate (DE-588)4148399-6 gnd |
| subject_GND | (DE-588)4132140-6 (DE-588)4220922-5 (DE-588)4184140-2 (DE-588)4148399-6 (DE-588)1071861417 |
| title | Phase separation in cuprate superconductors Proceedings of the second international workshop on "Phase Separation in Cuprate Superconductors" September 4–10, 1993, Cottbus, Germany |
| title_auth | Phase separation in cuprate superconductors Proceedings of the second international workshop on "Phase Separation in Cuprate Superconductors" September 4–10, 1993, Cottbus, Germany |
| title_exact_search | Phase separation in cuprate superconductors Proceedings of the second international workshop on "Phase Separation in Cuprate Superconductors" September 4–10, 1993, Cottbus, Germany |
| title_full | Phase separation in cuprate superconductors Proceedings of the second international workshop on "Phase Separation in Cuprate Superconductors" September 4–10, 1993, Cottbus, Germany Ernst Sigmund, K. Alex Müller (Eds.) |
| title_fullStr | Phase separation in cuprate superconductors Proceedings of the second international workshop on "Phase Separation in Cuprate Superconductors" September 4–10, 1993, Cottbus, Germany Ernst Sigmund, K. Alex Müller (Eds.) |
| title_full_unstemmed | Phase separation in cuprate superconductors Proceedings of the second international workshop on "Phase Separation in Cuprate Superconductors" September 4–10, 1993, Cottbus, Germany Ernst Sigmund, K. Alex Müller (Eds.) |
| title_short | Phase separation in cuprate superconductors |
| title_sort | phase separation in cuprate superconductors proceedings of the second international workshop on phase separation in cuprate superconductors september 4 10 1993 cottbus germany |
| title_sub | Proceedings of the second international workshop on "Phase Separation in Cuprate Superconductors" September 4–10, 1993, Cottbus, Germany |
| topic | Physics Strongly Correlated Systems, Superconductivity Phasenumwandlung (DE-588)4132140-6 gnd Hochtemperatursupraleiter (DE-588)4220922-5 gnd Supraleiter (DE-588)4184140-2 gnd Cuprate (DE-588)4148399-6 gnd |
| topic_facet | Physics Strongly Correlated Systems, Superconductivity Phasenumwandlung Hochtemperatursupraleiter Supraleiter Cuprate Konferenzschrift 1993 Cottbus |
| url | https://doi.org/10.1007/978-3-642-78805-5 |
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