New superconducting and magnetic phases emerge on the magnetic criticality in CeIn3

被引：47

作者：

Kawasaki, S ^{[1
]}

Mito, T

Kawasaki, Y

Kotegawa, H

Zheng, GQ

Kitaoka, Y

Shishido, H

Araki, S

Settai, R

Onuki, Y

机构：

[1] Osaka Univ, Grad Sch Engn Sci, Dept Mat Sci & Technol, Toyonaka, Osaka 5608531, Japan

[2] Osaka Univ, Grad Sch Sci, Dept Phys, Toyonaka, Osaka 5600043, Japan

[3] Japan Atom Energy Res Inst, Adv Sci Res Ctr, Tokai, Ibaraki 3191195, Japan

来源：

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN | 2004年 / 73卷 / 07期

关键词：

heavy fermion; superconductivity; CeIn3; NQR; pressure; first-order phase transition;

D O I：

10.1143/JPSJ.73.1647

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We report the discovery of new superconducting and novel magnetic phases in CeIn3 on the verge of antiferromagnetism (AFM) under pressure (P) through the In-nuclear quadrupole resonance (NQR) measurements. We have found a P-induced phase separation of AFM and paramagnetism (PM) without any trace of a quantum phase transition in CeIn3. A new type of superconductivity (SC) was found, under P = 2.28-2.5 GPa, to coexist with AFM. It is magnetically separated from PM where the heavy fermion SC takes place. We propose that the magnetic excitations such as spin-density fluctuations induced by the first-order magnetic phase transition might mediate attractive interaction to form Cooper pairs.

引用

页码：1647 / 1650

页数：4

共 23 条

[1] Pressure-induced superconductivity in an antiferromagnet CeRh2Si2 [J].

Araki, S ;

Nakashima, M ;

Settai, R ;

Kobayashi, TC ;

Onuki, Y .

JOURNAL OF PHYSICS-CONDENSED MATTER, 2002, 14 (21) :L377-L383

[2] HIGH-PRESSURE VALENCE INSTABILITY AND TC MAXIMUM IN SUPERCONDUCTING CECU2SI2 [J].

BELLARBI, B ;

BENOIT, A ;

JACCARD, D ;

MIGNOT, JM ;

BRAUN, HF .

PHYSICAL REVIEW B, 1984, 30 (03) :1182-1187

[3] Magnetic and superconducting phases of CePd2Si2 [J].

Grosche, FM ;

Julian, SR ;

Mathur, ND ;

Lonzarich, GG .

PHYSICA B-CONDENSED MATTER, 1996, 223-24 (1-4) :50-52

[4] Superconductivity on the threshold of magnetism in CePd2Si2 and CeIn3 [J].

Grosche, FM ;

Walker, IR ;

Julian, SR ;

Mathur, ND ;

Freye, DM ;

Steiner, MJ ;

Lonzarich, GG .

JOURNAL OF PHYSICS-CONDENSED MATTER, 2001, 13 (12) :2845-2860

[5] 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

[6] Pressure-temperature phase diagram of antiferromagnetism and superconductivity in CeRhIn5 and CeIn3:: 115In-NQR study under pressure -: art. no. 020504 [J].

Kawasaki, S ;

Mito, T ;

Zheng, GQ ;

Thessieu, C ;

Kawasaki, Y ;

Ishida, K ;

Kitaoka, Y ;

Muramatsu, T ;

Kobayashi, TC ;

Aoki, D ;

Araki, S ;

Haga, Y ;

Settai, R ;

Onuki, Y .

PHYSICAL REVIEW B, 2002, 65 (02) :1-4

[7] Gapless magnetic and quasiparticle excitations due to the coexistence of antiferromagnetism and superconductivity in CeRhIn5:: A study of 115In NQR under pressure -: art. no. 137001 [J].

Kawasaki, S ;

Mito, T ;

Kawasaki, Y ;

Zheng, GQ ;

Kitaoka, Y ;

Aoki, D ;

Haga, Y ;

Onuki, Y .

PHYSICAL REVIEW LETTERS, 2003, 91 (13)

[8] 115In-NQR evidence for unconventional superconductivity in CeIn3 under pressure -: art. no. 054521 [J].

Kawasaki, S ;

Mito, T ;

Kawasaki, Y ;

Zheng, GQ ;

Kitaoka, Y ;

Shishido, H ;

Araki, S ;

Settai, R ;

Onuki, Y .

PHYSICAL REVIEW B, 2002, 66 (05) :1-4

[9] Exotic superconducting phase in CeCu2Si2 close to antiferromagnetism:: A Cu-NQR study under hydrostatic pressure -: art. no. 140501 [J].

Kawasaki, Y ;

Ishida, K ;

Mito, T ;

Thessieu, C ;

Zheng, GQ ;

Kitaoka, Y ;

Geibel, C ;

Steglich, F .

PHYSICAL REVIEW B, 2001, 63 (14)

[10] Exotic superconductivity in the coexistent phase of antiferromagnetism and superconductivity in CeCu2(Si0.98Ge0.02)2:: A Cu-NQR study under hydrostatic pressure [J].

Kawasaki, Y ;

Ishida, KJ ;

Kawasaki, SJ ;

Mito, T ;

Zheng, GQ ;

Kitaoka, Y ;

Geibel, C ;

Steglich, F .

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 2004, 73 (01) :194-197

← 1 2 3 →