Magnetic Phase Transition and Electronic Anomalies in La1.96-x Y0.04 SrxCuO4 around x∼1/8

Tetsuo Fukase; Hirotaka Geka; Takayuki Goto; Kaichiro Chiba; Takao Suzuki

doi:10.1023/a:1022562909996

Magnetic Phase Transition and Electronic Anomalies in La_1.96-x Y_0.04 Sr_xCuO₄ around x∼1/8

Tetsuo Fukase, Hirotaka Geka, Takayuki Goto, Kaichiro Chiba, Takao Suzuki

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

4 Citations (Scopus)

Abstract

La-NMR, Hall coefficient and sound velocity have been measured in order to investigate the correlation between the magnetic ordering, the prominent change of transport properties, the suppression of T_c and the structural transformation around x∼1/8 in La_1.96-xY_0.04Sr_xCuO₄. By the substitution of 0.04/2 Y for La-sites, the structural transformation to the low temperature tetragonal phase (LTT) is caused at 57±14 K for samples around x∼0.115. The prominent decrease of the Hall coefficient followed by the sign reversal and the magnetic ordering are observed around x∼0.115 below temperatures T_s and TN, respectively. T_s vs x shows a bell shaped curve with the maximum value of 65 K at x∼0.115 where most prominent suppression of T_c appears. TN shows similar x dependence to T_s with the maximum value of 40 K at x∼0.115. The change of the electronic state below T_s and the suppression of T_c become more prominent and the magnetic ordering is observed more wide range of x under the LTT phase.

Original language	English
Pages (from-to)	491-495
Number of pages	5
Journal	Journal of Low Temperature Physics
Volume	117
Issue number	3-4
DOIs	https://doi.org/10.1023/a:1022562909996
Publication status	Published - 1999 Jan 1
Externally published	Yes

ASJC Scopus subject areas

Atomic and Molecular Physics, and Optics
Materials Science(all)
Condensed Matter Physics

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title = "Magnetic Phase Transition and Electronic Anomalies in La1.96-x Y0.04 SrxCuO4 around x∼1/8",

abstract = "La-NMR, Hall coefficient and sound velocity have been measured in order to investigate the correlation between the magnetic ordering, the prominent change of transport properties, the suppression of Tc and the structural transformation around x∼1/8 in La1.96-xY0.04SrxCuO4. By the substitution of 0.04/2 Y for La-sites, the structural transformation to the low temperature tetragonal phase (LTT) is caused at 57±14 K for samples around x∼0.115. The prominent decrease of the Hall coefficient followed by the sign reversal and the magnetic ordering are observed around x∼0.115 below temperatures Ts and TN, respectively. Ts vs x shows a bell shaped curve with the maximum value of 65 K at x∼0.115 where most prominent suppression of Tc appears. TN shows similar x dependence to Ts with the maximum value of 40 K at x∼0.115. The change of the electronic state below Ts and the suppression of Tc become more prominent and the magnetic ordering is observed more wide range of x under the LTT phase.",

author = "Tetsuo Fukase and Hirotaka Geka and Takayuki Goto and Kaichiro Chiba and Takao Suzuki",

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T1 - Magnetic Phase Transition and Electronic Anomalies in La1.96-x Y0.04 SrxCuO4 around x∼1/8

AU - Fukase, Tetsuo

AU - Geka, Hirotaka

AU - Goto, Takayuki

AU - Chiba, Kaichiro

AU - Suzuki, Takao

PY - 1999/1/1

Y1 - 1999/1/1

N2 - La-NMR, Hall coefficient and sound velocity have been measured in order to investigate the correlation between the magnetic ordering, the prominent change of transport properties, the suppression of Tc and the structural transformation around x∼1/8 in La1.96-xY0.04SrxCuO4. By the substitution of 0.04/2 Y for La-sites, the structural transformation to the low temperature tetragonal phase (LTT) is caused at 57±14 K for samples around x∼0.115. The prominent decrease of the Hall coefficient followed by the sign reversal and the magnetic ordering are observed around x∼0.115 below temperatures Ts and TN, respectively. Ts vs x shows a bell shaped curve with the maximum value of 65 K at x∼0.115 where most prominent suppression of Tc appears. TN shows similar x dependence to Ts with the maximum value of 40 K at x∼0.115. The change of the electronic state below Ts and the suppression of Tc become more prominent and the magnetic ordering is observed more wide range of x under the LTT phase.

AB - La-NMR, Hall coefficient and sound velocity have been measured in order to investigate the correlation between the magnetic ordering, the prominent change of transport properties, the suppression of Tc and the structural transformation around x∼1/8 in La1.96-xY0.04SrxCuO4. By the substitution of 0.04/2 Y for La-sites, the structural transformation to the low temperature tetragonal phase (LTT) is caused at 57±14 K for samples around x∼0.115. The prominent decrease of the Hall coefficient followed by the sign reversal and the magnetic ordering are observed around x∼0.115 below temperatures Ts and TN, respectively. Ts vs x shows a bell shaped curve with the maximum value of 65 K at x∼0.115 where most prominent suppression of Tc appears. TN shows similar x dependence to Ts with the maximum value of 40 K at x∼0.115. The change of the electronic state below Ts and the suppression of Tc become more prominent and the magnetic ordering is observed more wide range of x under the LTT phase.

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Magnetic Phase Transition and Electronic Anomalies in La_1.96-x Y_0.04 Sr_xCuO₄ around x∼1/8

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