Study of coexistence of ferromagnetism and superconductivity in single-crystal ErRh/sub 4/B/sub 4/
Neutron diffraction and resistivity measurements on single crystals of ErRh/sub 4/B/sub 4/ have revealed that both superconductivity and ferromagnetic order coexist in this material between 0.71 K and 1.2 K. In this intermediate phase, a linear polarized modulated structure with a wavelength of approximately 100 A is observed. The modulated moment increases faster than the ferromagnetic moment down to 0.71 K and then disappears suddenly, with loss of superconductivity and a transition to a normal ferromagnetic state. This transition is accompanied by temperature hysteresis of about 60 mK. The same hysteresis, in the inverse sense, is exhibited by the ferromagnetic component. The intermediate phase is interpreted as being one of coexisting normal ferromagnetic domains and superconducting sinusoidally ordered domains.
- Research Organization:
- Oak Ridge National Lab., TN (USA); Argonne National Lab., IL (USA)
- DOE Contract Number:
- W-7405-ENG-26
- OSTI ID:
- 6901447
- Report Number(s):
- CONF-810809-29; ON: DE82020927
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
360602* -- Other Materials-- Structure & Phase Studies
656100 -- Condensed Matter Physics-- Superconductivity
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
BORON COMPOUNDS
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
ERBIUM COMPOUNDS
FERROMAGNETISM
MAGNETISM
PHYSICAL PROPERTIES
RARE EARTH COMPOUNDS
RHODIUM COMPOUNDS
SUPERCONDUCTIVITY
TEMPERATURE DEPENDENCE
TRANSITION ELEMENT COMPOUNDS