RU-101 NQR STUDY IN SUPERCONDUCTING CERU2

被引：28

作者：

MATSUDA, K

KOHORI, Y

KOHARA, T

机构：

[1] Department of Material Science, Faculty of Science, Himeji Institute of Technology, Hyogo 678-12, Ako-gun

来源：

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN | 1995年 / 64卷 / 08期

关键词：

CERU2; SUPERCONDUCTIVITY; NQR;

D O I：

10.1143/JPSJ.64.2750

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We present measurements of the NQR spectrum and the nuclear spin lattice relaxation rate, 1/T-1, of Ru-101 in superconducting CeRu2 from 1.9 K to 10 K. From the NQR spectrum, the electric quadrupole interaction parameters were determined to be nu(Q)=13.2 MHz and eta=O.1/T-1 varies in proportion to temperature in the normal state, and has the Hebel-Slichter coherence peak just below the superconducting transition temperature, T-c, of 6.2 K, and decreases exponentially at low temperatures with the energy gap of 2 Delta=4.0k(B)T(c). Ru-101 NQR study indicates that CeRu2 is an s-wave and strong-coupling superconductor.

引用

收藏

页码：2750 / 2753

页数：4

相关论文

共 22 条

[1] THE NUCLEAR-MAGNETIC-RESONANCE OF RU-99 AND RN-1O1 IN HEXAGONAL CLOSE-PACKED RUTHENIUM METAL [J].

BURGSTALLER, A ;

VOITLANDER, J ;

EBERT, H .

JOURNAL OF PHYSICS-CONDENSED MATTER, 1994, 6 (40) :8335-8340

[2] NEUTRON-SCATTERING STUDIES OF THE MAGNETIC SUPERCONDUCTOR (CE1-XTBX)RU2 [J].

FERNANDEZBACA, JA ;

LYNN, JW .

JOURNAL OF APPLIED PHYSICS, 1981, 52 (03) :2183-2185

[3] SUPERCONDUCTIVITY IN STRONG SPIN-EXCHANGE FIELD [J].

FULDE, P ;

FERRELL, RA .

PHYSICAL REVIEW, 1964, 135 (3A) :A550-+

[4] POSSIBLE FORMATION OF A NONUNIFORM SUPERCONDUCTING STATE IN THE HEAVY-FERMION COMPOUND UPD2AL3 [J].

GLOOS, K ;

MODLER, R ;

SCHIMANSKI, H ;

BREDL, CD ;

GEIBEL, C ;

STEGLICH, F ;

BUZDIN, AI ;

SATO, N ;

KOMATSUBARA, T .

PHYSICAL REVIEW LETTERS, 1993, 70 (04) :501-504

[5] Thermal and elastic properties of superconducting CeRu2 [J].

Goshima, H. ;

Suzuki, T. ;

Fujita, T. ;

Hedo, M. ;

Nakama, T. ;

Yagasaki, K. .

PHYSICA B-CONDENSED MATTER, 1995, 206 :193-195

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

HEBEL, LC ;

SLICHTER, CP .

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

[7]

HILLENBRAND B, 1971, PHYS LETT A, V31, P448

[8] FLUX-PINNING, SPECIFIC-HEAT AND MAGNETIC-PROPERTIES OF THE LAVES PHASE SUPERCONDUCTOR CERU2 [J].

HUXLEY, AD ;

PAULSEN, C ;

LABORDE, O ;

THOLENCE, JL ;

SANCHEZ, D ;

JUNOD, A ;

CALEMCZUK, R .

JOURNAL OF PHYSICS-CONDENSED MATTER, 1993, 5 (41) :7709-7718

[9] THE COEXISTENCE OF SUPERCONDUCTIVITY AND FERROMAGNETISM IN (CE1-XGDX)RU2 - SELF-INDUCED VORTEX STATE [J].

KITAOKA, Y ;

CHANG, NS ;

EBISU, T ;

MATSUMURA, M ;

ASAYAMA, K ;

KUMAGAI, K .

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 1985, 54 (04) :1543-1551

[10]

KUMAGAI K, 1975, J PHYS SOC JPN, V45, P422