Magnetic and structural transitions in EuAg4As2 studied using 151Eu Mössbauer spectroscopy
Abstract
151Eu Mössbauer spectroscopy confirms that the europium in EuAg4As2 is fully divalent and that the spectrum at 5 K consists of a single, sharp magnetic pattern with a hyperfine field (Bhf) of 27.1(1) T and an isomer shift of -11.04(3) mm/s (relative to EuF3). The temperature dependence of the spectra shows that the ordering of the Eu moments proceeds via an incommensurate sine modulated structure starting at 15 K. The structure squares up below 9 K. A search for charge density or phonon softening signatures at the 120 K structural transition was not successful
- Authors:
-
[1];
- McGill Univ., Montreal, QC (Canada)
- Ames Lab., Ames, IA (United States)
- Univ. of California, Los Angeles, CA (United States)
- Publication Date:
- Research Org.:
- Ames Lab., Ames, IA (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), Basic Energy Sciences (BES)
- OSTI Identifier:
- 1595768
- Alternate Identifier(s):
- OSTI ID: 1580632
- Report Number(s):
- IS-J-10140
Journal ID: ISSN 2158-3226; TRN: US2101043
- Grant/Contract Number:
- SC0011978; AC02-07CH11358
- Resource Type:
- Accepted Manuscript
- Journal Name:
- AIP Advances
- Additional Journal Information:
- Journal Volume: 9; Journal Issue: 12; Journal ID: ISSN 2158-3226
- Publisher:
- American Institute of Physics (AIP)
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS
Citation Formats
Ryan, D. H., Bud’ko, Sergey L., Hu, Chaowei, and Ni, N. Magnetic and structural transitions in EuAg4As2 studied using 151Eu Mössbauer spectroscopy. United States: N. p., 2019.
Web. doi:10.1063/1.5129682.
Ryan, D. H., Bud’ko, Sergey L., Hu, Chaowei, & Ni, N. Magnetic and structural transitions in EuAg4As2 studied using 151Eu Mössbauer spectroscopy. United States. https://doi.org/10.1063/1.5129682
Ryan, D. H., Bud’ko, Sergey L., Hu, Chaowei, and Ni, N. Sun .
"Magnetic and structural transitions in EuAg4As2 studied using 151Eu Mössbauer spectroscopy". United States. https://doi.org/10.1063/1.5129682. https://www.osti.gov/servlets/purl/1595768.
@article{osti_1595768,
title = {Magnetic and structural transitions in EuAg4As2 studied using 151Eu Mössbauer spectroscopy},
author = {Ryan, D. H. and Bud’ko, Sergey L. and Hu, Chaowei and Ni, N.},
abstractNote = {151Eu Mössbauer spectroscopy confirms that the europium in EuAg4As2 is fully divalent and that the spectrum at 5 K consists of a single, sharp magnetic pattern with a hyperfine field (Bhf) of 27.1(1) T and an isomer shift of -11.04(3) mm/s (relative to EuF3). The temperature dependence of the spectra shows that the ordering of the Eu moments proceeds via an incommensurate sine modulated structure starting at 15 K. The structure squares up below 9 K. A search for charge density or phonon softening signatures at the 120 K structural transition was not successful},
doi = {10.1063/1.5129682},
journal = {AIP Advances},
number = 12,
volume = 9,
place = {United States},
year = {Sun Dec 01 00:00:00 EST 2019},
month = {Sun Dec 01 00:00:00 EST 2019}
}
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