Coexistence of antiferromagnetic order and superconductivity in five-layered Hg-based high- Tc cuprate

H. Kotegawa; Y. Kitaoka; Y. Araki; Y. Tokunaga; G. Q. Zheng; K. Tokiwa; T. Watanabe; A. Iyo; H. Kito; Y. Tanaka; H. Ihara

doi:10.1016/j.physc.2004.03.081

Coexistence of antiferromagnetic order and superconductivity in five-layered Hg-based high- T_c cuprate

H. Kotegawa, Y. Kitaoka, Y. Araki, Y. Tokunaga, G. Q. Zheng, K. Tokiwa, T. Watanabe, A. Iyo, H. Kito, Y. Tanaka, H. Ihara

Research output: Contribution to journal › Conference article › peer-review

7 Citations (Scopus)

Abstract

We report a coexistence of superconductivity and antiferromagnetism in five-layered compound HgBa₂Ca₄Cu₅O_y (Hg-1245) with T_c=108 K, which is composed of two types of CuO ₂ planes in a unit cell, three inner planes (IP) and two outer planes (OP). The Cu-NMR study has revealed that the OP undergoes a superconducting (SC) transition at T_c=108 K, whereas three underdoped IPs do an antiferromagnetic (AF) transition below T_N∼60 K with the Cu moments of ∼ 0.3-0.4 μ_B. The metallic behavior observed at the IP well below T_N points to a possibility that SC and AF order parameters coexist in a single CuO₂ plane.

Original language	English
Pages (from-to)	761-763
Number of pages	3
Journal	Physica C: Superconductivity and its applications
Volume	408-410
Issue number	1-4
DOIs	https://doi.org/10.1016/j.physc.2004.03.081
Publication status	Published - Aug 2004
Externally published	Yes
Event	Proceedings of the International Conference on Materials - Rio de Janeiro, Brazil Duration: May 25 2003 → May 30 2003

Keywords

Multilayered high-T cuprates
NMR

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Energy Engineering and Power Technology
Electrical and Electronic Engineering

Access to Document

10.1016/j.physc.2004.03.081

Cite this

@article{929894394b3f4b988da777f10974cef7,

title = "Coexistence of antiferromagnetic order and superconductivity in five-layered Hg-based high- Tc cuprate",

abstract = "We report a coexistence of superconductivity and antiferromagnetism in five-layered compound HgBa2Ca4Cu5Oy (Hg-1245) with Tc=108 K, which is composed of two types of CuO 2 planes in a unit cell, three inner planes (IP) and two outer planes (OP). The Cu-NMR study has revealed that the OP undergoes a superconducting (SC) transition at Tc=108 K, whereas three underdoped IPs do an antiferromagnetic (AF) transition below TN∼60 K with the Cu moments of ∼ 0.3-0.4 μB. The metallic behavior observed at the IP well below TN points to a possibility that SC and AF order parameters coexist in a single CuO2 plane.",

keywords = "Multilayered high-T cuprates, NMR",

author = "H. Kotegawa and Y. Kitaoka and Y. Araki and Y. Tokunaga and Zheng, {G. Q.} and K. Tokiwa and T. Watanabe and A. Iyo and H. Kito and Y. Tanaka and H. Ihara",

note = "Funding Information: The authors are grateful to Kenji Ishida for his helpful discussions. This work was supported by the COE Research (10CE2004) in Japan NEXT Grant. One of authors (H. Kotegawa) has been supported by JSPS Research Fellowships for Young Scientists. ; Proceedings of the International Conference on Materials ; Conference date: 25-05-2003 Through 30-05-2003",

year = "2004",

month = aug,

doi = "10.1016/j.physc.2004.03.081",

language = "English",

volume = "408-410",

pages = "761--763",

journal = "Physica C: Superconductivity and its Applications",

issn = "0921-4534",

publisher = "Elsevier",

number = "1-4",

}

TY - JOUR

T1 - Coexistence of antiferromagnetic order and superconductivity in five-layered Hg-based high- Tc cuprate

AU - Kotegawa, H.

AU - Kitaoka, Y.

AU - Araki, Y.

AU - Tokunaga, Y.

AU - Zheng, G. Q.

AU - Tokiwa, K.

AU - Watanabe, T.

AU - Iyo, A.

AU - Kito, H.

AU - Tanaka, Y.

AU - Ihara, H.

N1 - Funding Information: The authors are grateful to Kenji Ishida for his helpful discussions. This work was supported by the COE Research (10CE2004) in Japan NEXT Grant. One of authors (H. Kotegawa) has been supported by JSPS Research Fellowships for Young Scientists.

PY - 2004/8

Y1 - 2004/8

N2 - We report a coexistence of superconductivity and antiferromagnetism in five-layered compound HgBa2Ca4Cu5Oy (Hg-1245) with Tc=108 K, which is composed of two types of CuO 2 planes in a unit cell, three inner planes (IP) and two outer planes (OP). The Cu-NMR study has revealed that the OP undergoes a superconducting (SC) transition at Tc=108 K, whereas three underdoped IPs do an antiferromagnetic (AF) transition below TN∼60 K with the Cu moments of ∼ 0.3-0.4 μB. The metallic behavior observed at the IP well below TN points to a possibility that SC and AF order parameters coexist in a single CuO2 plane.

AB - We report a coexistence of superconductivity and antiferromagnetism in five-layered compound HgBa2Ca4Cu5Oy (Hg-1245) with Tc=108 K, which is composed of two types of CuO 2 planes in a unit cell, three inner planes (IP) and two outer planes (OP). The Cu-NMR study has revealed that the OP undergoes a superconducting (SC) transition at Tc=108 K, whereas three underdoped IPs do an antiferromagnetic (AF) transition below TN∼60 K with the Cu moments of ∼ 0.3-0.4 μB. The metallic behavior observed at the IP well below TN points to a possibility that SC and AF order parameters coexist in a single CuO2 plane.

KW - Multilayered high-T cuprates

KW - NMR

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U2 - 10.1016/j.physc.2004.03.081

DO - 10.1016/j.physc.2004.03.081

M3 - Conference article

AN - SCOPUS:4344692433

VL - 408-410

SP - 761

EP - 763

JO - Physica C: Superconductivity and its Applications

JF - Physica C: Superconductivity and its Applications

SN - 0921-4534

IS - 1-4

T2 - Proceedings of the International Conference on Materials

Y2 - 25 May 2003 through 30 May 2003

ER -