Anomalous change of hall coefficient in overdoped La2-xSr xCu1-yZnyO4 around x = 0.2

Jun Tonishi; Takao Suzuki; Takayuki Goto

doi:10.1063/1.2354758

Anomalous change of hall coefficient in overdoped La_2-xSr _xCu_1-yZn_yO₄ around x = 0.2

Jun Tonishi, Takao Suzuki, Takayuki Goto

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

The Hall coefficient (R_H) has been measured in 0.5% Zn-doped La_2-xSr_xCu_0.995Zn_0.005O₄ under high magnetic fields up to 12 T. With decreasing temperature, R _H increases and begins to decrease below a temperature T _RH. This characteristic temperature T_R _H has the local maximum around x = 0.195, and this Sr-concentration coincides with that the superconducting transition temperature is slightly suppressed. This behavior is quite similar to the phenomena observed in the stripe phase in x ∼ 0.12. These results suggest that the anomalous decrease of R_H around x = 0.195 observed in this study is responsible for the "1/4"-anomaly [as reported by Kakinuma et al., Phys. Rev. B 59, 1491 (1999).].

Original language	English
Title of host publication	LOW TEMPERATURE PHYSICS
Subtitle of host publication	24th International Conference on Low Temperature Physics - LT24
Pages	407-408
Number of pages	2
DOIs	https://doi.org/10.1063/1.2354758
Publication status	Published - 2006 Dec 1
Externally published	Yes
Event	LOW TEMPERATURE PHYSICS: 24th International Conference on Low Temperature Physics - LT24 - Orlando, FL, United States Duration: 2006 Aug 10 → 2006 Oct 17

Publication series

Name	AIP Conference Proceedings
Volume	850
ISSN (Print)	0094-243X
ISSN (Electronic)	1551-7616

Conference

Conference	LOW TEMPERATURE PHYSICS: 24th International Conference on Low Temperature Physics - LT24
Country/Territory	United States
City	Orlando, FL
Period	06/8/10 → 06/10/17

Keywords

Hall effect
LaSrCuO

ASJC Scopus subject areas

Ecology, Evolution, Behavior and Systematics
Ecology
Plant Science
Physics and Astronomy(all)
Nature and Landscape Conservation

Access to Document

10.1063/1.2354758

Cite this

Tonishi, J, Suzuki, T & Goto, T 2006, Anomalous change of hall coefficient in overdoped La_2-xSr _xCu_1-yZn_yO₄ around x = 0.2. in LOW TEMPERATURE PHYSICS: 24th International Conference on Low Temperature Physics - LT24. AIP Conference Proceedings, vol. 850, pp. 407-408, LOW TEMPERATURE PHYSICS: 24th International Conference on Low Temperature Physics - LT24, Orlando, FL, United States, 06/8/10. https://doi.org/10.1063/1.2354758

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title = "Anomalous change of hall coefficient in overdoped La2-xSr xCu1-yZnyO4 around x = 0.2",

abstract = "The Hall coefficient (RH) has been measured in 0.5% Zn-doped La2-xSrxCu0.995Zn0.005O4 under high magnetic fields up to 12 T. With decreasing temperature, R H increases and begins to decrease below a temperature T RH. This characteristic temperature TR H has the local maximum around x = 0.195, and this Sr-concentration coincides with that the superconducting transition temperature is slightly suppressed. This behavior is quite similar to the phenomena observed in the stripe phase in x ∼ 0.12. These results suggest that the anomalous decrease of RH around x = 0.195 observed in this study is responsible for the {"}1/4{"}-anomaly [as reported by Kakinuma et al., Phys. Rev. B 59, 1491 (1999).].",

keywords = "Hall effect, LaSrCuO",

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AU - Goto, Takayuki

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N2 - The Hall coefficient (RH) has been measured in 0.5% Zn-doped La2-xSrxCu0.995Zn0.005O4 under high magnetic fields up to 12 T. With decreasing temperature, R H increases and begins to decrease below a temperature T RH. This characteristic temperature TR H has the local maximum around x = 0.195, and this Sr-concentration coincides with that the superconducting transition temperature is slightly suppressed. This behavior is quite similar to the phenomena observed in the stripe phase in x ∼ 0.12. These results suggest that the anomalous decrease of RH around x = 0.195 observed in this study is responsible for the "1/4"-anomaly [as reported by Kakinuma et al., Phys. Rev. B 59, 1491 (1999).].

AB - The Hall coefficient (RH) has been measured in 0.5% Zn-doped La2-xSrxCu0.995Zn0.005O4 under high magnetic fields up to 12 T. With decreasing temperature, R H increases and begins to decrease below a temperature T RH. This characteristic temperature TR H has the local maximum around x = 0.195, and this Sr-concentration coincides with that the superconducting transition temperature is slightly suppressed. This behavior is quite similar to the phenomena observed in the stripe phase in x ∼ 0.12. These results suggest that the anomalous decrease of RH around x = 0.195 observed in this study is responsible for the "1/4"-anomaly [as reported by Kakinuma et al., Phys. Rev. B 59, 1491 (1999).].

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