Accession Number:

ADA188113

Title:

Preparation and Characterization of Cu2Zn1-xMnxGeS4.

Descriptive Note:

Technical rept.,

Corporate Author:

BROWN UNIV PROVIDENCE RI DEPT OF CHEMISTRY

Personal Author(s):

• Honig, E.
• Shen, H. S.
• Qao, G. Q.
• Doverspike, K.
• Kershaw, R.

Report Date:

1987-11-10

Pagination or Media Count:

10.0

Abstract:

Single crystals of Cu2Zn1-xMnxGeS4 x 0, 0.3, 0.05, 0.10, 1.0 have been grown by chemical vapor transport. These crystallize with the wurtz-stannite structure. Magnetic measurements show that the Curie-Weiss law is obeyed. Manganese exhibits the expected spin only moment and the weiss constants become more negative as the manganese concentration increases. Ambient temperature resistivities decrease with increasing manganese concentration. Two band transitions are observed for all materials in the range 1.9 2.1 eV.

Descriptors:

• *SINGLE CRYSTALS
• *COPPER ALLOYS
• *VAPOR DEPOSITION
• *X RAY DIFFRACTION
• CHEMICAL PROPERTIES
• ELECTRICAL RESISTANCE
• MAGNETIC FIELDS
• MANGANESE
• MEASUREMENT
• MOMENTS
• SPINNING(MOTION)
• TEMPERATURE
• TRANSPORT PROPERTIES
• VAPORS
• CHALCOGENS
• P TYPE SEMICONDUCTORS
• ZINC
• GERMANIUM
• SULFUR
• IODINE
• MAGNETIC PROPERTIES
• OPTICAL PROPERTIES
• CRYSTAL GROWTH

Subject Categories:

• Crystallography
• Solid State Physics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE