Low-temperature properties of the two-impurity Kondo Hamiltonian

Journal Article · Mon Jul 04 04:00:00 EDT 1988 · Phys. Rev. Lett.; (United States)

DOI:https://doi.org/10.1103/PhysRevLett.61.125· OSTI ID:7231928

Jones, B A; Varma, C M; Wilkins, J W

For the two-impurity Kondo system, the low-temperature properties: impurity spin-spin correlation function, susceptibilities, specific heat, and Wilson ratio: are strongly nonuniversal functions of the ratio (I/sub 0//T/sub K/) of the Ruderman-Kittel-Kasuya-Yosida coupling to the single-impurity Kondo temperature. In particular, there is a new unstable fixed point for an antiferromagnetic coupling with I/sub 0//T/sub K/approx. =-2.2. The calculations utilize a newly found symmetry of Kondo Hamiltonians, axial charge.

• Research Organization: Laboratory of Atomic and Solid State Physics, Clark Hall, Cornell University, Ithaca, New York 14853 and ATandT Bell Laboratories, 600 Mountain Avenue, Murray Hill, New Jersey 07974
• OSTI ID: 7231928
• Journal Information: Phys. Rev. Lett.; (United States), Journal Name: Phys. Rev. Lett.; (United States) Vol. 61:1; ISSN PRLTA
• Country of Publication: United States
• Language: English

Related Subjects

656000* -- Condensed Matter Physics
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ANGULAR MOMENTUM
ANTIFERROMAGNETIC MATERIALS
CORRELATION FUNCTIONS
COUPLING
ENERGY LEVELS
FERMI GAS
FLUIDS
FUNCTIONS
GASES
GROUND STATES
HAMILTONIANS
KONDO EFFECT
MAGNETIC MATERIALS
MAGNETIC PROPERTIES
MAGNETIC SUSCEPTIBILITY
MATERIALS
MATHEMATICAL OPERATORS
PARTICLE PROPERTIES
PHYSICAL PROPERTIES
QUANTUM OPERATORS
RUDERMAN-KITTEL COUPLING
SPECIFIC HEAT
SPIN
TEMPERATURE DEPENDENCE
THERMODYNAMIC PROPERTIES
TRACE AMOUNTS