Scaling behavior of heavy fermion metals

被引:80
作者
Shaginyan, V. R. [1 ,2 ]
Amusia, M. Ya [3 ,4 ]
Msezane, A. Z. [2 ]
Popov, K. G. [5 ]
机构
[1] RAS, Petersburg Nucl Phys Inst, Gatchina 188300, Russia
[2] Clark Atlanta Univ, CTSPS, Atlanta, GA 30314 USA
[3] Hebrew Univ Jerusalem, Racah Inst Phys, IL-91904 Jerusalem, Israel
[4] RAS, AF Ioffe Phys Tech Inst, St Petersburg 194021, Russia
[5] RAS, Ural Div, Komi Sci Ctr, Syktyvkar 167982, Russia
来源
PHYSICS REPORTS-REVIEW SECTION OF PHYSICS LETTERS | 2010年 / 492卷 / 2-3期
关键词
Quantum phase transitions; Heavy fermions; Non-Fermi liquid behavior; Scaling behavior; Entropy; Asymmetrical conductivity; Tricritical points; Topological phase transitions; QUANTUM PHASE-TRANSITION; HIGH-TEMPERATURE SUPERCONDUCTORS; DENSITY-FUNCTIONAL THEORY; SINGLE-PARTICLE SPECTRA; T-C SUPERCONDUCTIVITY; WIEDEMANN-FRANZ LAW; LIQUID BEHAVIOR; THERMAL-CONDUCTIVITY; QUASI-PARTICLES; UNIVERSAL BEHAVIOR;
D O I
10.1016/j.physrep.2010.03.001
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
Strongly correlated Fermi systems are fundamental systems in physics that are best studied experimentally, which until very recently have lacked theoretical explanations. This review discusses the construction of a theory and the analysis of phenomena occurring in strongly correlated Fermi systems such as heavy-fermion (HF) metals and two-dimensional (2D) Fermi systems. It is shown that the basic properties and the scaling behavior of HF metals can be described within the framework of a fermion condensation quantum phase transition (FCQPT) and an extended quasiparticle paradigm that allow us to explain the non-Fermi liquid behavior observed in strongly correlated Fermi systems. In contrast to the Landau paradigm stating that the quasiparticle effective mass is a constant, the effective mass of new quasiparticles strongly depends on temperature, magnetic field, pressure, and other parameters. Having analyzed the collected facts on strongly correlated Fermi systems with quite a different microscopic nature, we find these to exhibit the same non-Fermi liquid behavior at FCQPT. We show both analytically and using arguments based entirely on the experimental grounds that the data collected on very different strongly correlated Fermi systems have a universal scaling behavior, and materials with strongly correlated fermions can unexpectedly be uniform in their diversity. Our analysis of strongly correlated systems such as HF metals and 2D Fermi systems is in the context of salient experimental results. Our calculations of the non-Fermi liquid behavior, the scales and thermodynamic, relaxation and transport properties are in good agreement with experimental facts. (C) 2010 Elsevier B.V. All rights reserved.
引用
收藏
页码:31 / 109
页数:79
相关论文
共 241 条
[1]   Parity of the order parameter in high-temperature superconductors with respect to a pi/2 rotation [J].
Abrikosov, AA .
PHYSICAL REVIEW B, 1995, 52 (22) :15738-15740
[2]   TRANSPORT-PROPERTIES OF CECU6 AT VERY LOW-TEMPERATURE [J].
AMATO, A ;
JACCARD, D ;
WALKER, E ;
SIERRO, J ;
FLOUQUET, J .
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 1987, 63-4 :300-302
[3]   Quasiparticle picture of high-temperature superconductors in the frame of a Fermi liquid with the fermion condensate [J].
Amusia, MY ;
Shaginyan, VR .
PHYSICAL REVIEW B, 2001, 63 (22)
[4]   Two types of the effective mass divergence and the Gruneisen ratio in heavy-fermion metals [J].
Amusia, MY ;
Msezane, AZ ;
Shaginyan, VR .
PHYSICS LETTERS A, 2004, 320 (5-6) :459-464
[5]   From the Bose-Einstein to fermion condensation [J].
Amusia, MY ;
Msezane, AZ ;
Shaginyan, VR .
PHYSICS OF ATOMIC NUCLEI, 2003, 66 (10) :1802-1819
[6]   Quasiparticles in the superconducting state of high-Tc metals [J].
Amusia, MY ;
Shaginyan, VR .
JETP LETTERS, 2003, 77 (12) :671-675
[7]   Magnetic field-induced Landau Fermi liquid in high-Tc metals [J].
Amusia, MY ;
Shaginyan, VR .
PHYSICS LETTERS A, 2003, 315 (3-4) :288-292
[8]   Possible universal cause of High-Tc superconductivity in different metals [J].
Amusia, MY ;
Shaginyan, VR .
JETP LETTERS, 2002, 76 (11) :651-655
[9]   Relationships between the superconducting gap, pseudogap and transition temperature in high-Tc superconductors [J].
Amusia, MY ;
Shaginyan, VR .
PHYSICS LETTERS A, 2002, 298 (2-3) :193-198
[10]   Fermi-condensate quantum phase transition in high-Tc superconductors [J].
Amusia, MY ;
Shaginyan, VR .
JETP LETTERS, 2001, 73 (05) :232-236