Accession Number:

AD0694526

Title:

ELECTROLYTIC GROWTH AND PROPERTIES OF TRANSITION METAL COMPOUND SINGLE CRYSTALS

Descriptive Note:

Summary technical rept. 1 May 1967-30 Apr 1969

Corporate Author:

BROWN UNIV PROVIDENCE RI

Personal Author(s):

• Wold, Aaron

Report Date:

1969-07-01

Pagination or Media Count:

44.0

Abstract:

Single crystals of FeP, Fe2P, CoAs2 and FeAs2 were grown by either electrolysis of fused salts or chemical transport. Of these four compounds prepared to date, extensive studies have been carried out on well-characterized crystals of FeP. This compound exhibits metallic behavior throughout the temperature range of 4.2K to 298K. Anomalies in the magnetic susceptibility and resistivity curves at about 120K have been correlated with an ordered antiferromagnetic spiral. The other compounds have been chemically analyzed and their electrical and magnetic properties are being characterized. In addition, crystals of cadmium sulfide have been grown from the vapor phase with dimensions 12 mm long x 9 mm wide x 0.2 mm thick. The resistivity of these crystals was found to be 2,000,000 ohm-cm at room temperature. On heating these crystals to 800C for 4 hours and quenching to room temperature, the resistivity was found to be 219.3 ohm-cm.

Descriptors:

• *IRON COMPOUNDS
• *REFRACTORY MATERIALS
• *CADMIUM SULFIDES
• MAGNETIC PROPERTIES
• ARSENIDES
• ELECTRICAL RESISTANCE
• COBALT COMPOUNDS
• CRYSTAL GROWTH
• PHOSPHIDES
• SINGLE CRYSTALS

Subject Categories:

• Ceramics, Refractories and Glass
• Crystallography

Distribution Statement:

APPROVED FOR PUBLIC RELEASE