TY - JOUR
T1 - Coexistence of superconductivity and antiferromagnetism in multilayered high-Tc superconductor HgBa2Ca4Cu5Oy
T2 - Cu-NMR study
AU - Kotegawa, H.
AU - Tokunaga, Y.
AU - Araki, Y.
AU - Zheng, G. Q.
AU - Kitaoka, Y.
AU - Tokiwa, K.
AU - Ito, K.
AU - Watanabe, T.
AU - Iyo, A.
AU - Tanaka, Y.
AU - Ihara, H.
PY - 2004/1/12
Y1 - 2004/1/12
N2 - We report a coexistence of superconductivity and antiferromagnetism in five-layered compound HgBa2Ca4Cu5Oy (Hg-1245) with Tc = 108K, which is composed of two types of CuO2 planes in a unit cell; three inner planes (IP’s) and two outer planes (OP’s). The Cu-NMR study has revealed that the optimally doped OP undergoes a superconducting (SC) transition at Tc = 108K, whereas the three underdoped IP’s do an antiferromagnetic (AF) transition below TN∼60K with the Cu moments of ∼(0.3−0.4)μB. Thus bulk superconductivity with a high value of Tc = 108K and a static AF ordering at TN = 60K are realized in the alternating AF and SC layers. The AF-spin polarization at the IP is found to induce the Cu moments of ∼μB at the SC OP, which is the AF proximity effect into the SC OP.
AB - We report a coexistence of superconductivity and antiferromagnetism in five-layered compound HgBa2Ca4Cu5Oy (Hg-1245) with Tc = 108K, which is composed of two types of CuO2 planes in a unit cell; three inner planes (IP’s) and two outer planes (OP’s). The Cu-NMR study has revealed that the optimally doped OP undergoes a superconducting (SC) transition at Tc = 108K, whereas the three underdoped IP’s do an antiferromagnetic (AF) transition below TN∼60K with the Cu moments of ∼(0.3−0.4)μB. Thus bulk superconductivity with a high value of Tc = 108K and a static AF ordering at TN = 60K are realized in the alternating AF and SC layers. The AF-spin polarization at the IP is found to induce the Cu moments of ∼μB at the SC OP, which is the AF proximity effect into the SC OP.
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U2 - 10.1103/PhysRevB.69.014501
DO - 10.1103/PhysRevB.69.014501
M3 - Article
AN - SCOPUS:9144261876
SN - 1098-0121
VL - 69
JO - Physical Review B-Condensed Matter
JF - Physical Review B-Condensed Matter
IS - 1
ER -