MAGNETISM OF EuS, EuSe AND EuTe

Journal Article · Mon Oct 01 04:00:00 EDT 1962 · Philips Res. Rept.

OSTI ID:4093320

Enz, U; Fast, J F; van Houten, S; Smit, J

The preparation, crystal structure, and magnetic properties of EuS, EuSe, and EuTe are described. EuS and EuSe are found to be purely ferromagnetic compounds with Curie temperatures of 16 and 6 deg K, respectively, whereas EuTe is antiferromagnetic with an asymptotic Curie point of -7.5 deg K and a Neel temperature of 11 deg K. It is concluded that the exchange interaction between nearest-neighbor metal ions is of a direct type. The same conclusion is drawn for MnO and MnS. The magnetization for both EuS and EuSe is measured as a function of the temperature for several field strengths in the region of 14.3 to 32.1 kOe. It appears that the dependence of the magnetization on temperature and fieldstrength can be described satisfactorily by the Weiss-field theory. For these measurements a special apparatus was used, which is described. (auth)

• Research Organization: Originating Research Org. not identified
• NSA Number: NSA-18-008841
• OSTI ID: 4093320
• Journal Information: Philips Res. Rept., Journal Name: Philips Res. Rept. Vol. Vol: 17
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

CONFIGURATION
CRYSTALS
EUROPIUM COMPOUNDS
FERROMAGNETIC MATERIALS
FIELD THEORY
INTERACTIONS
ION EXCHANGE
LABORATORY EQUIPMENT
LOW TEMPERATURE
MAGNETIC FIELDS
MAGNETIC MOMENTS
MAGNETISM
MEASURED VALUES
METALS, CERAMICS, AND OTHER MATERIALS
PREPARATION
SELENIDES
SILICIDES
TELLURIDES
WEISS THEORY