Single to Multiquasiparticle Excitations in the Itinerant Helical Magnet CeRhIn5

被引：19

作者：

Stock, C. ^{[1
,2
]}

Rodriguez-Rivera, J. A. ^{[3
,4
]}

Schmalzl, K. ^{[5
]}

Rodriguez, E. E. ^{[6
]}

Stunault, A. ^{[7
]}

Petrovic, C. ^{[8
]}

机构：

[1] Univ Edinburgh, Sch Phys & Astron, Edinburgh EH9 3FD, Midlothian, Scotland

[2] Univ Edinburgh, Ctr Sci Extreme Condit, Edinburgh EH9 3FD, Midlothian, Scotland

[3] NIST, Ctr Neutron Res, Gaithersburg, MD 20899 USA

[4] Univ Maryland, Dept Mat Sci, College Pk, MD 20742 USA

[5] Forschungszentrum Julich, Outstn Inst Laue Langevin, Julich Ctr Neutron Sci, F-38042 Grenoble 9, France

[6] Univ Maryland, Dept Chem Biochem, College Pk, MD 20742 USA

[7] Inst Max Von Laue Paul Langevin, F-38042 Grenoble 9, France

[8] Brookhaven Natl Lab, Dept Phys, Upton, NY 11973 USA

来源：

PHYSICAL REVIEW LETTERS | 2015年 / 114卷 / 24期

基金：

英国工程与自然科学研究理事会;

关键词：

HIGH-TEMPERATURE SUPERCONDUCTIVITY; HEISENBERG-ANTIFERROMAGNET; NEUTRON POLARIMETRY; HEAVY; IRON; SCATTERING; FERROMAGNET; CONTINUUM; SYMMETRY; CECOIN5;

D O I：

10.1103/PhysRevLett.114.247005

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

CeRhIn5 is an itinerant magnet where the Ce3+ spins order in a simple helical phase. We investigate the spin excitations and observe sharp spin waves parameterized by a nearest-neighbor exchange, J(RKKY) = 0.88 +/- 0.05 meV. At higher energies, the spin fluctuations are heavily damped, where single-quasiparticle excitations are replaced by a momentum- and energy-broadened continuum constrained by kinematics of energy and momentum conservation. The delicate energy balance between localized and itinerant characters results in the breakdown of the single-quasiparticle picture in CeRhIn5.

引用

页数：6

共 73 条

[1] THE RESONATING VALENCE BOND STATE IN LA2CUO4 AND SUPERCONDUCTIVITY [J].

ANDERSON, PW .

SCIENCE, 1987, 235 (4793) :1196-1198

[2] Field-angle dependence of the zero-energy density of states in the unconventional heavy-fermion superconductor CeCoIn5 [J].

Aoki, H ;

Sakakibara, T ;

Shishido, H ;

Settai, R ;

Önuki, Y ;

Miranovic, P ;

Machida, K .

JOURNAL OF PHYSICS-CONDENSED MATTER, 2004, 16 (03) :L13-L19

[3] Anisotropic three-dimensional magnetic fluctuations in heavy fermion CeRhIn5 -: art. no. 100505 [J].

Bao, W ;

Aeppli, G ;

Lynn, JW ;

Pagliuso, PG ;

Sarrao, JL ;

Hundley, MF ;

Thompson, JD ;

Fisk, Z .

PHYSICAL REVIEW B, 2002, 65 (10)

[4] Incommensurate magnetic structure of CeRhIn5 [J].

Bao, W ;

Pagliuso, PG ;

Sarrao, JL ;

Thompson, JD ;

Fisk, Z ;

Lynn, JW ;

Erwin, RW .

PHYSICAL REVIEW B, 2000, 62 (22) :14621-14624

[5] Magnetic neutron scattering in hole-doped cuprate superconductors [J].

Birgeneau, Robert J. ;

Stock, Chris ;

Tranquada, John M. ;

Yamada, Kazuyoshi .

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 2006, 75 (11)

[6] Exploring the Fragile Antiferromagnetic Superconducting Phase in CeCoIn5 [J].

Blackburn, E. ;

Das, P. ;

Eskildsen, M. R. ;

Forgan, E. M. ;

Laver, M. ;

Niedermayer, C. ;

Petrovic, C. ;

White, J. S. .

PHYSICAL REVIEW LETTERS, 2010, 105 (18)

[7] POLARIZATION EFFECTS IN MAGNETIC ELASTIC SCATTERING OF SLOW NEUTRONS [J].

BLUME, M .

PHYSICAL REVIEW, 1963, 130 (05) :1670-&

[8]

Brown P.J., 2006, INT TABLES CRYSTALLO, VC

[9] NEUTRON POLARIMETRY [J].

BROWN, PJ ;

FORSYTH, JB ;

TASSET, F .

PROCEEDINGS OF THE ROYAL SOCIETY-MATHEMATICAL AND PHYSICAL SCIENCES, 1993, 442 (1914) :147-160

[10] Competitive coexistence of superconductivity with antiferromagnetism in CeRhIn5 [J].

Chen, G. F. ;

Matsubayashi, K. ;

Ban, S. ;

Deguchi, K. ;

Sato, N. K. .

PHYSICAL REVIEW LETTERS, 2006, 97 (01)

← 1 2 3 4 5 6 7 8 →