Thumbnail
Access Restriction
Open

Author Pringle, O. A. ♦ Mook, H. A. ♦ Maple, M. B.
Source United States Department of Energy Office of Scientific and Technical Information
Content type Text
Language English
Subject Keyword MATERIALS SCIENCE ♦ CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY ♦ BORON ALLOYS ♦ CRITICAL TEMPERATURE ♦ MAGNETIC MOMENTS ♦ NEUTRON DIFFRACTION ♦ PHASE TRANSFORMATIONS ♦ SUPERCONDUCTIVITY ♦ ERBIUM BORIDES ♦ HOLMIUM BORIDES ♦ RHODIUM BORIDES ♦ FERROMAGNETISM ♦ MAGNETIZATION ♦ ALLOYS ♦ BORIDES ♦ BORON COMPOUNDS ♦ COHERENT SCATTERING ♦ DIFFRACTION ♦ ELECTRIC CONDUCTIVITY ♦ ELECTRICAL PROPERTIES ♦ ERBIUM COMPOUNDS ♦ HOLMIUM COMPOUNDS ♦ MAGNETISM ♦ PHYSICAL PROPERTIES ♦ RARE EARTH COMPOUNDS ♦ REFRACTORY METAL COMPOUNDS ♦ RHODIUM COMPOUNDS ♦ SCATTERING ♦ THERMODYNAMIC PROPERTIES ♦ TRANSITION ELEMENT COMPOUNDS ♦ TRANSITION TEMPERATURE ♦ Ceramics, Cermets, & Refractories- Physical Properties ♦ Solid State Physics- Superconductivity- Acoustic, Electronic, Magnetic, Optical, & Thermal Phenomena- (-1987)
Abstract The (Er/sub 1-x/Ho/sub x/)Rh/sub 4/B/sub 4/ pseudoternary alloy system has a minimum in the phase boundary between the superconducting and ferromagnetic phases near x = 0.3. This minimum has been identified as due to the competing magnetic anisotropies of Er and Ho. It has also been suggested that there could be a Lifschitz point near the minimum. Using the 30-m SANS camera at the National Center for Small-Angle Scattering Research at ORNL, we have observed a peak in the SANS pattern for (Er/sub 0.8/Ho/sub 0.2/)Rh/sub 4/B/sub 4/ at Q = 0.065 A/sup -1/. This peak appears for temperatures between T/sub c/2, measured upon cooling, and T/sub m/, and corresponds to a modulation of the magnetic moment with a wavelength of about 100 A, demonstrating that the modulated moment phase exists away from the ErRh/sub 4/B/sub 4/ end of the phase diagram. The wavelength of the modulation is the same as was previously observed in ErRh/sub 4/B/sub 4/. The fact that the wavelength of the modulation remains finite near x = 0.3 appears to rule out the possibility of Lifschitz behavior near this point.
Educational Use Research
Learning Resource Type Article
Publisher Date 1985-04-15
Publisher Department Solid State Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831
Publisher Place United States
Journal J. Appl. Phys.
Volume Number 57
Issue Number 8
Organization Solid State Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831


Open content in new tab

   Open content in new tab