1/8 anomaly in the excess-oxygen-doped La2-xAxCuO4+δ (A = Nd, Bi, Pr)

Y. Koike; H. Mikuni; I. Watanabe; T. Adachi; S. Yairi; K. Nagamine

doi:10.1023/A:1023431127508

1/8 anomaly in the excess-oxygen-doped La_2-xA_xCuO_4+δ (A = Nd, Bi, Pr)

Y. Koike, H. Mikuni, I. Watanabe, T. Adachi, S. Yairi, K. Nagamine

ENG - Applied Physics

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

2 Citations (Scopus)

Abstract

We have investigated in detail dependence on p (the hole concentration per Cu) of the transport properties and T_c in the excess-oxygen-doped La_2-xA_xCuO_4+δ (A = Nd, Bi, Pr), where the phase separation of the excess oxygen is suppressed. The so-called 1/8 anomaly has been found in La_1.8Nd_0.2 CuO_4+δ. The 1/8 anomaly has become marked through the 1% substitution of Zn for Cu. The μSR measurements have revealed that the magnetic correlation develops at low temperatures below about 40 K in both Zn-free and 1% Zn-substituted samples with p = 1/8 and that a long-range magnetic order is formed below 1 K in the 1% Zn-substituted sample with p = 1/8. These results support the stripe-pinning model. Neither La_2-xBi_xCuO_4+δ nor La_2-xPr_xCuO_4+δ has exhibited the clear 1/8 anomaly.

Original language	English
Pages (from-to)	837-841
Number of pages	5
Journal	Journal of Low Temperature Physics
Volume	131
Issue number	5-6
DOIs	https://doi.org/10.1023/A:1023431127508
Publication status	Published - 2003 Jun

ASJC Scopus subject areas

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

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title = "1/8 anomaly in the excess-oxygen-doped La2-xAxCuO4+δ (A = Nd, Bi, Pr)",

abstract = "We have investigated in detail dependence on p (the hole concentration per Cu) of the transport properties and Tc in the excess-oxygen-doped La2-xAxCuO4+δ (A = Nd, Bi, Pr), where the phase separation of the excess oxygen is suppressed. The so-called 1/8 anomaly has been found in La1.8Nd0.2 CuO4+δ. The 1/8 anomaly has become marked through the 1% substitution of Zn for Cu. The μSR measurements have revealed that the magnetic correlation develops at low temperatures below about 40 K in both Zn-free and 1% Zn-substituted samples with p = 1/8 and that a long-range magnetic order is formed below 1 K in the 1% Zn-substituted sample with p = 1/8. These results support the stripe-pinning model. Neither La2-xBixCuO4+δ nor La2-xPrxCuO4+δ has exhibited the clear 1/8 anomaly.",

author = "Y. Koike and H. Mikuni and I. Watanabe and T. Adachi and S. Yairi and K. Nagamine",

year = "2003",

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doi = "10.1023/A:1023431127508",

language = "English",

volume = "131",

pages = "837--841",

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T1 - 1/8 anomaly in the excess-oxygen-doped La2-xAxCuO4+δ (A = Nd, Bi, Pr)

AU - Koike, Y.

AU - Mikuni, H.

AU - Watanabe, I.

AU - Adachi, T.

AU - Yairi, S.

AU - Nagamine, K.

PY - 2003/6

Y1 - 2003/6

N2 - We have investigated in detail dependence on p (the hole concentration per Cu) of the transport properties and Tc in the excess-oxygen-doped La2-xAxCuO4+δ (A = Nd, Bi, Pr), where the phase separation of the excess oxygen is suppressed. The so-called 1/8 anomaly has been found in La1.8Nd0.2 CuO4+δ. The 1/8 anomaly has become marked through the 1% substitution of Zn for Cu. The μSR measurements have revealed that the magnetic correlation develops at low temperatures below about 40 K in both Zn-free and 1% Zn-substituted samples with p = 1/8 and that a long-range magnetic order is formed below 1 K in the 1% Zn-substituted sample with p = 1/8. These results support the stripe-pinning model. Neither La2-xBixCuO4+δ nor La2-xPrxCuO4+δ has exhibited the clear 1/8 anomaly.

AB - We have investigated in detail dependence on p (the hole concentration per Cu) of the transport properties and Tc in the excess-oxygen-doped La2-xAxCuO4+δ (A = Nd, Bi, Pr), where the phase separation of the excess oxygen is suppressed. The so-called 1/8 anomaly has been found in La1.8Nd0.2 CuO4+δ. The 1/8 anomaly has become marked through the 1% substitution of Zn for Cu. The μSR measurements have revealed that the magnetic correlation develops at low temperatures below about 40 K in both Zn-free and 1% Zn-substituted samples with p = 1/8 and that a long-range magnetic order is formed below 1 K in the 1% Zn-substituted sample with p = 1/8. These results support the stripe-pinning model. Neither La2-xBixCuO4+δ nor La2-xPrxCuO4+δ has exhibited the clear 1/8 anomaly.

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JO - Journal of Low Temperature Physics

JF - Journal of Low Temperature Physics

SN - 0022-2291

IS - 5-6

ER -

1/8 anomaly in the excess-oxygen-doped La_2-xA_xCuO_4+δ (A = Nd, Bi, Pr)

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