Magnetic interactions in amorphous spin-glass--superconducting multilayers

Journal Article · Fri Sep 01 04:00:00 EDT 1989 · Physical Review (Section) B: Condensed Matter; (USA)

DOI:https://doi.org/10.1103/PhysRevB.40.5198· OSTI ID:5649984

Maurer, M ^[1]; Menny, A ^[2]; Ravet, M F ^[3]; Meiresonne, J; Kes, P H; Mydosh, J Y ^[4]

---

1. Laboratoire Commun CNRS Saint-Gobain, Bote Postale 109, 54704 Pont-a-Mousson, France (FR) Kamerlingh Onnes Laboratorium, Postbus 9506, 2300 RA Leiden, The Netherlands
2. Laboratoire de Physique des Solides, Universite de Nancy I, Bote Postale 239, 54506 Vandoeuvre-les-Nancy CEDEX, France
3. Laboratoire Commun CNRS Saint-Gobain, Bote Postale 109, 54704 Pont-a-Mousson, France
4. Kamerlingh Onnes Laboratorium, Postbus 9506, 2300 RA Leiden, The

We have investigated the spin-glass transition of some amorphous multilayers where a spin-glass layer of GdAl{sub 2}, with a bulk freezing temperature {ital T}{sub {ital f}} of {approx}11 K, is intercalated with a nonmagnetic layer of Mo{sub 3}Si. The transition temperature, as defined by the dc susceptibility maximum, has been investigated with a SQUID as a function of the thicknesses. For thin GdAl{sub 2} layers ({approx}9A),{ital T}{sub {ital f}} depends dramatically on the spacing between the magnetic layers, i.e., the thickness of Mo{sub 3}Si. This is a signature of a long-range magnetic interaction across the nonmagnetic layers. Such an effect is confirmed by the absence of any superconductivity in the Mo{sub 3}Si layers up to thicknesses of 60 A, whereas the bulk phase has a {ital T}{sub {ital c}} around 6 K.

• OSTI ID: 5649984
• Journal Information: Physical Review (Section) B: Condensed Matter; (USA), Journal Name: Physical Review (Section) B: Condensed Matter; (USA) Vol. 40:7; ISSN 0163-1829; ISSN PRBMD
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360603* -- Materials-- Properties
656100 -- Condensed Matter Physics-- Superconductivity
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ALLOYS
ALUMINIUM ALLOYS
AMORPHOUS STATE
CLATHRATES
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
ELECTRONIC EQUIPMENT
EQUIPMENT
FLUXMETERS
GADOLINIUM ALLOYS
LOW TEMPERATURE
MAGNETIC PROPERTIES
MEASURING INSTRUMENTS
MICROWAVE EQUIPMENT
MOLYBDENUM COMPOUNDS
MOLYBDENUM SILICIDES
PHYSICAL PROPERTIES
RARE EARTH ALLOYS
REFRACTORY METAL COMPOUNDS
SILICIDES
SILICON COMPOUNDS
SPIN GLASS STATE
SQUID DEVICES
SUPERCONDUCTING DEVICES
SUPERCONDUCTIVITY
THERMODYNAMIC PROPERTIES
TRANSITION ELEMENT COMPOUNDS
TRANSITION TEMPERATURE
ULTRALOW TEMPERATURE
VERY LOW TEMPERATURE