Nuclear quadrupole resonance and nuclear magnetic resonance studies of heavy fermion Ce1-xRxRhIn5 (R=Y,La)

被引：2

作者：

Iwamoto, Y ^{[1
]}

Ueda, K

Kohara, T

Kohori, Y

Zapf, VS

Sayles, TA

Maple, MB

Pagliuso, PG

Moreno, NO

Sarrao, JL

机构：

[1] Kobe Univ, Fac Maritime Sci, Kobe, Hyogo 6580022, Japan

[2] Himeji Inst Technol, Grad Sch Sci, Kamigori, Hyogo 6781297, Japan

[3] Chiba Univ, Fac Sci, Inage Ku, Chiba 2638522, Japan

[4] Univ Calif San Diego, Dept Phys, La Jolla, CA 92093 USA

[5] Univ Calif San Diego, Inst Pure & Appl Sci, La Jolla, CA 92093 USA

[6] Los Alamos Natl Lab, Los Alamos, NM 87545 USA

来源：

JOURNAL OF APPLIED PHYSICS | 2004年 / 95卷 / 11期

关键词：

D O I：

10.1063/1.1669349

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The results of In-115 nuclear quadrupole resonance (NQR) measurements on Ce1-xYxRhIn5 and Ce1-xLaxRhIn5 are reported. The observed NQR frequency at an In(1) site varies linearly with lattice parameter and dopant concentration for Y- and La-substituted systems. For the samples of LaMIn5 (M=Co,Rh,Ir) and YRhIn5, T-1(-1)'s are proportional to the temperature, which means the system is in the Fermi liquid state in a wide temperature range. On the other hand, in Ce0.1La0.9RhIn5 and Ce0.5Y0.5RhIn5, T-1(-1)'s have power-law temperature dependences (close to T-1/4), which are expected to be from non-Fermi-liquid behavior near a quantum critical point. For Ce0.5La0.5RhIn5 and Ce0.25La0.75RhIn5, T-1(-1)'s stay temperature independent below 4.2 K and the observed linewidths of In-115 become broader with decreasing temperature. This behavior may be associated with a short-range magnetic order of Ce expected from the macroscopic measurements. (C) 2004 American Institute of Physics.

引用

页码：7210 / 7212

页数：3

共 13 条

[1] Pressure-induced superconductivity in quasi-2D CeRhIn5 [J].

Hegger, H ;

Petrovic, C ;

Moshopoulou, EG ;

Hundley, MF ;

Sarrao, JL ;

Fisk, Z ;

Thompson, JD .

PHYSICAL REVIEW LETTERS, 2000, 84 (21) :4986-4989

[2] Nuclear magnetic relaxation around the magnetic instabilities in metals [J].

Ishigaki, A ;

Moriya, T .

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 1996, 65 (10) :3402-3403

[3] Microscopic measurements on the band 5f-metamagnetism in UCoA1 [J].

Iwamoto, Y ;

Ueda, K ;

Kohara, T ;

Andreev, AV ;

Havela, L ;

Sechovsky, V .

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 2001, 234 (02) :207-212

[4] NMR and NQR studies of superconducting CeTIn5 (T = Co, Rh and Ir) [J].

Kohori, Y ;

Yamato, Y ;

Iwamoto, Y ;

Kohara, T ;

Bauer, ED ;

Maple, MB ;

Sarrao, JL .

PHYSICA B-CONDENSED MATTER, 2002, 312 :126-128

[5] NMR and NQR studies of the heavy fermion superconductors CeTIn5 (T = Co and Ir) -: art. no. 134526 [J].

Kohori, Y ;

Yamato, Y ;

Iwamoto, Y ;

Kohara, T ;

Bauer, ED ;

Maple, MB ;

Sarrao, JL .

PHYSICAL REVIEW B, 2001, 64 (13)

[6] Appearance of anisotropic non s-wave superconductivity above the critical pressure of antiferromagnetic CeRhln5 -: 115In nuclear quadrupole resonance study [J].

Kohori, Y ;

Yamato, Y ;

Iwamoto, Y ;

Kohara, T .

EUROPEAN PHYSICAL JOURNAL B, 2000, 18 (04) :601-604

[7]

Pagliuso PG, 2002, PHYS REV B, V66, DOI 10.1103/PhysRevB.66.054433

[8] Coexistence of magnetism and superconductivity in CeRh1-xIrxIn5 -: art. no. 100503 [J].

Pagliuso, PG ;

Petrovic, C ;

Movshovich, R ;

Hall, D ;

Hundley, MF ;

Sarrao, JL ;

Thompson, JD ;

Fisk, Z .

PHYSICAL REVIEW B, 2001, 64 (10)

[9] A new heavy-fermion superconductor CeIrIn5:: A relative of the cuprates? [J].

Petrovic, C ;

Movshovich, R ;

Jaime, M ;

Pagliuso, PG ;

Hundley, MF ;

Sarrao, JL ;

Fisk, Z ;

Thompson, JD .

EUROPHYSICS LETTERS, 2001, 53 (03) :354-359

[10] Heavy-fermion superconductivity in CeCoIn5 at 2.3 K [J].

Petrovic, C ;

Pagliuso, PG ;

Hundley, MF ;

Movshovich, R ;

Sarrao, JL ;

Thompson, JD ;

Fisk, Z ;

Monthoux, P .

JOURNAL OF PHYSICS-CONDENSED MATTER, 2001, 13 (17) :L337-L342

← 1 2 →