Anisotropic pairing in superconducting Sr2RuO4: Ru NMR and NQR studies

被引：132

作者：

Ishida, K

Kitaoka, Y

Asayama, K

Ikeda, S

Nishizaki, S

Maeno, Y

Yoshida, K

Fujita, T

机构：

[1] KYOTO UNIV, FAC SCI, DEPT PHYS, KYOTO 60601, JAPAN

[2] HIROSHIMA UNIV, FAC SCI, DEPT PHYS, HIGASHIHIROSHIMA 739, JAPAN

来源：

PHYSICAL REVIEW B | 1997年 / 56卷 / 02期

关键词：

D O I：

10.1103/PhysRevB.56.R505

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

NMR and nuclear quadrupole resonance studies are reported on single-crystal Sr2RuO4 (T-c=0.7 K) with the same layered perovskite structure as La2CuO4. The Pauli spin susceptibility deduced from the Ru Knight shift is found to be largely enhanced by a factor of similar to 5.4 as compared with the value from the band calculation. In the superconducting state, the nuclear spin-lattice relaxation rate 1/T-1 exhibits a sharp decrease with no coherence peak just below T-c and the T1T=constant behavior well below T-c, suggesting that the anisotropic pairing state is realized as in heavy-fermion and high-T-c superconductors.

引用

页码：R505 / R508

页数：4

共 31 条

[1] NMR PROPERTIES OF HCP RU METAL - 1ST DETECTION OF THE RU-99 AND RU-101 NMR IN A PARAMAGNETIC SOLID [J].

BURGSTALLER, A ;

EBERT, H ;

VOITLANDER, J .

HYPERFINE INTERACTIONS, 1993, 80 (1-4) :1015-1018

[2] MECHANISM FOR THE METAL-INSULATOR-TRANSITION IN SR2IR1-XRUXO4 [J].

CARTER, SA ;

BATLOGG, B ;

CAVA, RJ ;

KRAJEWSKI, JJ ;

PECK, WF ;

RUPP, LW .

PHYSICAL REVIEW B, 1995, 51 (23) :17184-17187

[3]

Freeman A. J., 1965, Magnetism, VIIA, P167

[4] NUCLEAR SPIN RELAXATION IN NORMAL AND SUPERCONDUCTING ALUMINUM [J].

HEBEL, LC ;

SLICHTER, CP .

PHYSICAL REVIEW, 1959, 113 (06) :1504-1519

[5]

HOTTA T, COMMUNICATION

[6] LOW-FREQUENCY SPIN DYNAMICS IN UNDOPED AND SR-DOPED LA2CUO4 [J].

IMAI, T ;

SLICHTER, CP ;

YOSHIMURA, K ;

KOSUGE, K .

PHYSICAL REVIEW LETTERS, 1993, 70 (07) :1002-1005

[7]

ISHIDA K, 1994, J PHYS SOC JPN, V63, P1004

[8] MAGNETIC-PROPERTIES OF SRRUO3 SINGLE-CRYSTAL [J].

KANBAYASI, A .

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 1976, 41 (06) :1876-1878

[9] IMPURITY EFFECT IN HIGH-T(C) SUPERCONDUCTORS - A CONSISTENT ANALYSIS BY D-WAVE SUPERCONDUCTING MODEL [J].

KITAOKA, Y ;

ISHIDA, K ;

ASAYAMA, K .

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 1994, 63 (06) :2052-2056

[10] ANTIFERROMAGNETIC SPIN CORRELATION AND SUPERCONDUCTIVITY IN LA2-XSRXCUO4-CU NQR STUDY [J].

KITAOKA, Y ;

OHSUGI, S ;

ISHIDA, K ;

ASAYAMA, K .

PHYSICA C, 1990, 170 (3-4) :189-194

← 1 2 3 4 →