Normal-state Hall effect in HgBa{sub 2}CaCu{sub 2}O{sub 6+{delta}} and TlBa{sub 2}CaCu{sub 2}O
Journal Article
·
· Physical Review B
The normal-state Hall effect is studied in thin-film samples of the isomorphic pair of superconductors HgBa{sub 2}CaCu{sub 2}O{sub 6+{delta}} (Hg-1212) and TlBa{sub 2}CaCu{sub 2}O{sub 7-{delta}} (Tl-1212). A comparison of the slopes of inverse Hall mobility H cot {theta}{sub H}(T{sup 2}), together with a comparison of characteristic temperature T{sup *}/T{sub c} below which there is a systematic deviation from T{sup 2}, suggests that Hg-1212 has twice the charge-carrier density of Tl-1212 for samples with close to optimal T{sub c}. This is attributed to the significant role played by the redistribution of oxygen as a result of exchanging Hg and Tl cations.
- Research Organization:
- Sandia National Laboratory
- Sponsoring Organization:
- (US)
- DOE Contract Number:
- AC04-94AL85000
- OSTI ID:
- 40277243
- Journal Information:
- Physical Review B, Journal Name: Physical Review B Journal Issue: 5 Vol. 64; ISSN 0163-1829
- Publisher:
- The American Physical Society
- Country of Publication:
- United States
- Language:
- English
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