skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: New {beta} (fcc)-Cobalt to 210 GPa

Abstract

We report a new phase transition in cobalt from the magnetic {epsilon} (hcp) to a {beta} (fcc) phase, likely nonmagnetic, at 105 GPa. It occurs martensitically in an extended pressure region between 105 and 150 GPa without any apparent volume change. The fcc phase of Co is in systematic accordance with the 4d and 5d counterparts. The pressure-volume isotherm of {beta} -Co resembles those of {alpha} (fcc)-Ni and {epsilon} (hcp)-Fe within 1%. The phase diagram of cobalt suggests that the fcc stability increases with increasing occupancy of d -band electrons from Fe to Co to Ni. (c) 2000 The American Physical Society.

Authors:
; ; ;
Publication Date:
OSTI Identifier:
20216333
Resource Type:
Journal Article
Journal Name:
Physical Review Letters
Additional Journal Information:
Journal Volume: 84; Journal Issue: 18; Other Information: PBD: 1 May 2000; Journal ID: ISSN 0031-9007
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; COBALT; PHASE TRANSFORMATIONS; FCC LATTICES; PRESSURE DEPENDENCE; VERY HIGH PRESSURE; ISOTHERMS; PHASE DIAGRAMS; FERROMAGNETIC MATERIALS; EQUATIONS OF STATE; NSLS; X-RAY DIFFRACTION; EXPERIMENTAL DATA

Citation Formats

Yoo, C. S., Cynn, H., Soederlind, P., and Iota, V. New {beta} (fcc)-Cobalt to 210 GPa. United States: N. p., 2000. Web. doi:10.1103/PhysRevLett.84.4132.
Yoo, C. S., Cynn, H., Soederlind, P., & Iota, V. New {beta} (fcc)-Cobalt to 210 GPa. United States. doi:10.1103/PhysRevLett.84.4132.
Yoo, C. S., Cynn, H., Soederlind, P., and Iota, V. Mon . "New {beta} (fcc)-Cobalt to 210 GPa". United States. doi:10.1103/PhysRevLett.84.4132.
@article{osti_20216333,
title = {New {beta} (fcc)-Cobalt to 210 GPa},
author = {Yoo, C. S. and Cynn, H. and Soederlind, P. and Iota, V.},
abstractNote = {We report a new phase transition in cobalt from the magnetic {epsilon} (hcp) to a {beta} (fcc) phase, likely nonmagnetic, at 105 GPa. It occurs martensitically in an extended pressure region between 105 and 150 GPa without any apparent volume change. The fcc phase of Co is in systematic accordance with the 4d and 5d counterparts. The pressure-volume isotherm of {beta} -Co resembles those of {alpha} (fcc)-Ni and {epsilon} (hcp)-Fe within 1%. The phase diagram of cobalt suggests that the fcc stability increases with increasing occupancy of d -band electrons from Fe to Co to Ni. (c) 2000 The American Physical Society.},
doi = {10.1103/PhysRevLett.84.4132},
journal = {Physical Review Letters},
issn = {0031-9007},
number = 18,
volume = 84,
place = {United States},
year = {2000},
month = {5}
}