PHASE TRANSFORMATION IN SAMARIUM INDUCED BY HIGH PRESSURE AND ITS EFFECT ON THE ANTIFERROMAGNETIC ORDERING

Journal Article · Fri May 01 04:00:00 EDT 1964 · Physical Review (U.S.) Superseded in part by Phys. Rev. A, Phys. Rev. B: Solid State, Phys. Rev. C, and Phys. Rev. D

DOI:https://doi.org/10.1103/PhysRev.134.A691· OSTI ID:4029875

Jayaraman, A; Sherwood, R C

Samarium undergoes a pressure induced phase transformation to double- hexagonal close-packed (La-type) structure at pressures around 40 kbar and temperatures near 300 deg C. It is retained metastably at atmospheric pressure. The new phase has a Neel temperature of 27 deg K as compared to 14.8 deg K noted for normal form of Sm. Pressure induced phase transformations observed in Gd, Sm, Ce, and La suggest that the sequence of polymorphic transformations under pressure in trivalent rare earths is in the order hcp yields Sm--type yields dhcp yields fcc. (auth)

• Research Organization: Bell Telephone Labs., Murray Hill, N.J.
• NSA Number: NSA-18-018393
• OSTI ID: 4029875
• Journal Information: Physical Review (U.S.) Superseded in part by Phys. Rev. A, Phys. Rev. B: Solid State, Phys. Rev. C, and Phys. Rev. D, Journal Name: Physical Review (U.S.) Superseded in part by Phys. Rev. A, Phys. Rev. B: Solid State, Phys. Rev. C, and Phys. Rev. D Vol. Vol: 134; ISSN PHRVA
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

ALLOTROPY
CERIUM
GADOLINIUM
LANTHANUM
LATTICES
LOW TEMPERATURE
METALS, CERAMICS, AND OTHER MATERIALS
PRESSURE
RARE EARTHS
SAMARIUM
TEMPERATURE