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

Journal Article · Mon Jul 07 00:00:00 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), Vol. 57:1
• Country of Publication: United States
• Language: English

Related Subjects

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