Wave-vector-- and magnetic-field--dependent spin fluctuations in the heavy-fermion system CeCu/sub 6/

Journal Article · Mon Jul 07 04:00:00 EDT 1986 · Phys. Rev. Lett.; (United States)

DOI:https://doi.org/10.1103/PhysRevLett.57.122· OSTI ID:5503524

Aeppli, G; Yoshizawa, H; Endoh, Y; Bucher, E; Hufnagl, J; Onuki, Y; Komatsubara, T

We have performed neutron-scattering measurements on a single crystal of CeCu/sub 6/ in applied magnetic fields from 0 to 6.4 T. The observed momentum-dependent magnetic scattering implies the existence of short-range antiferromagnetic correlations. While it induces no resonances, the field broadens the spectra considerably at T-italic = 0.4 K. An effective Hamiltonian which incorporates both single-impurity Kondo properties and antiferromagnetic Ruderman-Kittel-Kasuya-Yosida interactions describes our data.

• Research Organization: ATandT Bell Laboratories, Murray Hill, New Jersey 07974
• OSTI ID: 5503524
• Journal Information: Phys. Rev. Lett.; (United States), Journal Name: Phys. Rev. Lett.; (United States) Vol. 57:1; ISSN PRLTA
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360104* -- Metals & Alloys-- Physical Properties
656102 -- Solid State Physics-- Superconductivity-- Acoustic
Electronic
Magnetic
Optical
& Thermal Phenomena-- (-1987)
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ANGULAR MOMENTUM
ANTIFERROMAGNETISM
CERIUM COMPOUNDS
COHERENT SCATTERING
COPPER COMPOUNDS
COUPLING
CRYSTALS
DIFFRACTION
ELEMENTARY PARTICLES
FERMIONS
FLUCTUATIONS
FUNCTIONS
HEAVY LEPTONS
KONDO EFFECT
LEPTONS
MAGNETIC FIELDS
MAGNETISM
MONOCRYSTALS
NEUTRON DIFFRACTION
PARTICLE PROPERTIES
POSTULATED PARTICLES
RARE EARTH COMPOUNDS
RUDERMAN-KITTEL COUPLING
SCATTERING
SPIN
TRANSITION ELEMENT COMPOUNDS
ULTRALOW TEMPERATURE
VARIATIONS
WAVE FUNCTIONS