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

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 1 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

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Kotegawa, H., Kitaoka, Y., Araki, Y., Tokunaga, Y., Zheng, G. Q., Tokiwa, K., Watanabe, T., Iyo, A., Kito, H., Tanaka, Y., & Ihara, H. (2004). Coexistence of antiferromagnetic order and superconductivity in five-layered Hg-based high- T_c cuprate. Physica C: Superconductivity and its applications, 408-410(1-4), 761-763. https://doi.org/10.1016/j.physc.2004.03.081

Coexistence of antiferromagnetic order and superconductivity in five-layered Hg-based high- T_c cuprate. / Kotegawa, H.; Kitaoka, Y.; Araki, Y.; Tokunaga, Y.; Zheng, G. Q.; Tokiwa, K.; Watanabe, T.; Iyo, A.; Kito, H.; Tanaka, Y.; Ihara, H.

In: Physica C: Superconductivity and its applications, Vol. 408-410, No. 1-4, 01.08.2004, p. 761-763.

Research output: Contribution to journal › Conference article

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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",

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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.

PY - 2004/8/1

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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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