Magnetothermopower and magnetoresistivity of RuSr 2Gd 1-xLa xCu 2O 8 (x=0,0.1)

C. J. Liu; C. S. Sheu; T. W. Wu; L. C. Huang; F. H. Hsu; H. D. Yang; G. V.M. Williams; Chia Jung C. Liu

doi:10.1103/PhysRevB.71.014502

Magnetothermopower and magnetoresistivity of RuSr ₂Gd _1-xLa _xCu ₂O ₈ (x=0,0.1)

C. J. Liu, C. S. Sheu, T. W. Wu, L. C. Huang, F. H. Hsu, H. D. Yang, G. V.M. Williams, Chia Jung C. Liu

Department of Physics

Research output: Contribution to journal › Article › peer-review

22 Citations (Scopus)

Abstract

We report measurements of magnetothermopower and magnetoresistivity as a function of temperature on RuSr ₂Gd _1-xLa _xCu ₂O ₈ (x=0,0.1). The normal-state thermopower shows a dramatic decrease after applying a magnetic field of 5 T, whereas the resistivity shows only a small change after applying the same field. Our results suggest that RuO ₂ layers are conducting and the magnetic field induced decrease of the overall thermopower is caused by the decrease of partial thermopower associated with the spin entropy decrease of the carriers in the RuO ₂ layers.

Original language	English
Article number	014502
Journal	Physical Review B - Condensed Matter and Materials Physics
Volume	71
Issue number	1
DOIs	https://doi.org/10.1103/PhysRevB.71.014502
Publication status	Published - 2005 Jan

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

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10.1103/PhysRevB.71.014502

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title = "Magnetothermopower and magnetoresistivity of RuSr 2Gd 1-xLa xCu 2O 8 (x=0,0.1)",

abstract = "We report measurements of magnetothermopower and magnetoresistivity as a function of temperature on RuSr 2Gd 1-xLa xCu 2O 8 (x=0,0.1). The normal-state thermopower shows a dramatic decrease after applying a magnetic field of 5 T, whereas the resistivity shows only a small change after applying the same field. Our results suggest that RuO 2 layers are conducting and the magnetic field induced decrease of the overall thermopower is caused by the decrease of partial thermopower associated with the spin entropy decrease of the carriers in the RuO 2 layers.",

author = "Liu, {C. J.} and Sheu, {C. S.} and Wu, {T. W.} and Huang, {L. C.} and Hsu, {F. H.} and Yang, {H. D.} and Williams, {G. V.M.} and Liu, {Chia Jung C.}",

year = "2005",

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doi = "10.1103/PhysRevB.71.014502",

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T1 - Magnetothermopower and magnetoresistivity of RuSr 2Gd 1-xLa xCu 2O 8 (x=0,0.1)

AU - Liu, C. J.

AU - Sheu, C. S.

AU - Wu, T. W.

AU - Huang, L. C.

AU - Hsu, F. H.

AU - Yang, H. D.

AU - Williams, G. V.M.

AU - Liu, Chia Jung C.

PY - 2005/1

Y1 - 2005/1

N2 - We report measurements of magnetothermopower and magnetoresistivity as a function of temperature on RuSr 2Gd 1-xLa xCu 2O 8 (x=0,0.1). The normal-state thermopower shows a dramatic decrease after applying a magnetic field of 5 T, whereas the resistivity shows only a small change after applying the same field. Our results suggest that RuO 2 layers are conducting and the magnetic field induced decrease of the overall thermopower is caused by the decrease of partial thermopower associated with the spin entropy decrease of the carriers in the RuO 2 layers.

AB - We report measurements of magnetothermopower and magnetoresistivity as a function of temperature on RuSr 2Gd 1-xLa xCu 2O 8 (x=0,0.1). The normal-state thermopower shows a dramatic decrease after applying a magnetic field of 5 T, whereas the resistivity shows only a small change after applying the same field. Our results suggest that RuO 2 layers are conducting and the magnetic field induced decrease of the overall thermopower is caused by the decrease of partial thermopower associated with the spin entropy decrease of the carriers in the RuO 2 layers.

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