Magnetostructural Transition Kinetics in Shocked Iron
Abstract
Here, a generalized Heisenberg model is implemented to study the effect of thermal magnetic disorder on kinetics of the Fe α–ε transition. The barrier to bulk martensitic displacement remains large in α-Fe shocked well past the phase line but is much reduced in the [001] α–ε boundary. The first result is consistent with observed overdriving to metastable α, while the second suggests structural instability, as implied by observation of a [001] shock transformation front without plastic relaxation. Reconciling both behaviors may require concurrent treatment of magnetic and structural order.
- Authors:
-
- Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
- Publication Date:
- Research Org.:
- Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1367964
- Alternate Identifier(s):
- OSTI ID: 1294716
- Report Number(s):
- LLNL-JRNL-689345
Journal ID: ISSN 0031-9007; PRLTAO
- Grant/Contract Number:
- AC52-07NA27344; 13-ERD-044
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Physical Review Letters
- Additional Journal Information:
- Journal Volume: 117; Journal Issue: 8; Journal ID: ISSN 0031-9007
- Publisher:
- American Physical Society (APS)
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 36 MATERIALS SCIENCE; 75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY
Citation Formats
Surh, Michael P., Benedict, Lorin X., and Sadigh, Babak. Magnetostructural Transition Kinetics in Shocked Iron. United States: N. p., 2016.
Web. doi:10.1103/PhysRevLett.117.085701.
Surh, Michael P., Benedict, Lorin X., & Sadigh, Babak. Magnetostructural Transition Kinetics in Shocked Iron. United States. https://doi.org/10.1103/PhysRevLett.117.085701
Surh, Michael P., Benedict, Lorin X., and Sadigh, Babak. Mon .
"Magnetostructural Transition Kinetics in Shocked Iron". United States. https://doi.org/10.1103/PhysRevLett.117.085701. https://www.osti.gov/servlets/purl/1367964.
@article{osti_1367964,
title = {Magnetostructural Transition Kinetics in Shocked Iron},
author = {Surh, Michael P. and Benedict, Lorin X. and Sadigh, Babak},
abstractNote = {Here, a generalized Heisenberg model is implemented to study the effect of thermal magnetic disorder on kinetics of the Fe α–ε transition. The barrier to bulk martensitic displacement remains large in α-Fe shocked well past the phase line but is much reduced in the [001] α–ε boundary. The first result is consistent with observed overdriving to metastable α, while the second suggests structural instability, as implied by observation of a [001] shock transformation front without plastic relaxation. Reconciling both behaviors may require concurrent treatment of magnetic and structural order.},
doi = {10.1103/PhysRevLett.117.085701},
journal = {Physical Review Letters},
number = 8,
volume = 117,
place = {United States},
year = {Mon Aug 15 00:00:00 EDT 2016},
month = {Mon Aug 15 00:00:00 EDT 2016}
}
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