Temperature and field induced strain measurements in single crystal Gd 5Si 2Ge 2
The first-order magneto-structural transformation that occurs in Gd 5Si 2Ge 2 near room temperature makes it a strong candidate for many energy harvesting applications. Understanding the single crystal properties is crucial for allowing simulations of device performance. In this study, magnetically and thermally induced transformation strains were measured in a single crystal of Gd 5Si 2.05Ge 1.95 as it transforms from a high-temperature monoclinic paramagnet to a lower-temperature orthorhombic ferromagnet. Thermally induced transformation strains of –8500 ppm, +960 ppm and +1800 ppm, and magnetically induced transformation strains of –8500 ppm, +900 ppm and +2300 ppm were measured along the a, b and c axes, respectively. Furthermore, using experimental data coupled with general thermodynamic considerations, a universal phase diagram was constructed showing the transition from the monoclinic to the orthorhombic phase as a function of temperature and magnetic field.
- Authors:
-
[1]
; [2]
; [3]
; [4]
; [5]
; [1]
- Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
- Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States); Univ. of California, Los Angeles, CA (United States)
- Univ. of California, Los Angeles, CA (United States)
- Ames Lab. and Iowa State Univ., Ames, IA (United States)
- Ames Lab., Ames, IA (United States)
- Publication Date:
- Report Number(s):
- LLNL-JRNL-663037
Journal ID: ISSN 1047-4838; PII: 1895
- Grant/Contract Number:
- AC52-07NA27344
- Type:
- Accepted Manuscript
- Journal Name:
- JOM. Journal of the Minerals, Metals & Materials Society
- Additional Journal Information:
- Journal Volume: 68; Journal Issue: 6; Journal ID: ISSN 1047-4838
- Publisher:
- Springer
- Research Org:
- Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
- Sponsoring Org:
- USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; 36 MATERIALS SCIENCE
- OSTI Identifier:
- 1266676
McCall, S. K., Nersessian, N., Carman, G. P., Pecharsky, V. K., Schlagel, D. L., and Radousky, H. B.. Temperature and field induced strain measurements in single crystal Gd5Si2Ge2. United States: N. p.,
Web. doi:10.1007/s11837-016-1895-0.
McCall, S. K., Nersessian, N., Carman, G. P., Pecharsky, V. K., Schlagel, D. L., & Radousky, H. B.. Temperature and field induced strain measurements in single crystal Gd5Si2Ge2. United States. doi:10.1007/s11837-016-1895-0.
McCall, S. K., Nersessian, N., Carman, G. P., Pecharsky, V. K., Schlagel, D. L., and Radousky, H. B.. 2016.
"Temperature and field induced strain measurements in single crystal Gd5Si2Ge2". United States.
doi:10.1007/s11837-016-1895-0. https://www.osti.gov/servlets/purl/1266676.
@article{osti_1266676,
title = {Temperature and field induced strain measurements in single crystal Gd5Si2Ge2},
author = {McCall, S. K. and Nersessian, N. and Carman, G. P. and Pecharsky, V. K. and Schlagel, D. L. and Radousky, H. B.},
abstractNote = {The first-order magneto-structural transformation that occurs in Gd5Si2Ge2 near room temperature makes it a strong candidate for many energy harvesting applications. Understanding the single crystal properties is crucial for allowing simulations of device performance. In this study, magnetically and thermally induced transformation strains were measured in a single crystal of Gd5Si2.05Ge1.95 as it transforms from a high-temperature monoclinic paramagnet to a lower-temperature orthorhombic ferromagnet. Thermally induced transformation strains of –8500 ppm, +960 ppm and +1800 ppm, and magnetically induced transformation strains of –8500 ppm, +900 ppm and +2300 ppm were measured along the a, b and c axes, respectively. Furthermore, using experimental data coupled with general thermodynamic considerations, a universal phase diagram was constructed showing the transition from the monoclinic to the orthorhombic phase as a function of temperature and magnetic field.},
doi = {10.1007/s11837-016-1895-0},
journal = {JOM. Journal of the Minerals, Metals & Materials Society},
number = 6,
volume = 68,
place = {United States},
year = {2016},
month = {3}
}
- Free Publicly Accessible Full Text
-
Accepted Manuscript (DOE)
- Publisher's Version of Record
- https://doi.org/10.1007/s11837-016-1895-0