High-resolution phonon energy shift measurements with the inelastic neutron spin echo technique
Abstract
The energy resolution of the conventional way of measuring a small change in a phonon dispersion curve using neutron scattering is restricted by the relatively coarse intrinsic resolution ellipsoid of the neutron triple-axis spectrometer (TAS). By implementing inelastic neutron spin echo on the host TAS using the Larmor precession of the neutron spin, the energy resolution of such measurements can be further improved without reducing the resolution ellipsoid. Measurements of the temperature-dependent phonon energy change are demonstrated using superconducting magnetic Wollaston prisms at the HB-1 instrument of the High-Flux Isotope Reactor at Oak Ridge National Laboratory, and the achievable resolution is <10 µeV.
- Authors:
-
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
- Indiana Univ., Bloomington, IN (United States)
- Delft Univ. of Technology (Netherlands)
- Max-Planck-Inst. fur Festkorperforschung, Stuttgart (Germany)
- Duke Univ., Durham, NC (United States)
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Indiana Univ., Bloomington, IN (United States)
- Publication Date:
- Research Org.:
- Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1546533
- Grant/Contract Number:
- AC05-00OR22725
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Journal of Applied Crystallography (Online)
- Additional Journal Information:
- Journal Name: Journal of Applied Crystallography (Online); Journal Volume: 52; Journal Issue: 4; Journal ID: ISSN 1600-5767
- Publisher:
- International Union of Crystallography
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; inelastic neutron spin echo; neutron Larmor labeling; high energy resolution; inelastic neutron scattering.
Citation Formats
Li, Fankang Frank, Shen, Jiazhou, Parnell, Steven R., Thaler, Alex Nicholas, Matsuda, Masaaki, Keller, Thomas, Delaire, Olivier, Pynn, Roger R., and Fernandez-Baca, Jaime A. High-resolution phonon energy shift measurements with the inelastic neutron spin echo technique. United States: N. p., 2019.
Web. doi:10.1107/S1600576719008008.
Li, Fankang Frank, Shen, Jiazhou, Parnell, Steven R., Thaler, Alex Nicholas, Matsuda, Masaaki, Keller, Thomas, Delaire, Olivier, Pynn, Roger R., & Fernandez-Baca, Jaime A. High-resolution phonon energy shift measurements with the inelastic neutron spin echo technique. United States. https://doi.org/10.1107/S1600576719008008
Li, Fankang Frank, Shen, Jiazhou, Parnell, Steven R., Thaler, Alex Nicholas, Matsuda, Masaaki, Keller, Thomas, Delaire, Olivier, Pynn, Roger R., and Fernandez-Baca, Jaime A. Fri .
"High-resolution phonon energy shift measurements with the inelastic neutron spin echo technique". United States. https://doi.org/10.1107/S1600576719008008. https://www.osti.gov/servlets/purl/1546533.
@article{osti_1546533,
title = {High-resolution phonon energy shift measurements with the inelastic neutron spin echo technique},
author = {Li, Fankang Frank and Shen, Jiazhou and Parnell, Steven R. and Thaler, Alex Nicholas and Matsuda, Masaaki and Keller, Thomas and Delaire, Olivier and Pynn, Roger R. and Fernandez-Baca, Jaime A.},
abstractNote = {The energy resolution of the conventional way of measuring a small change in a phonon dispersion curve using neutron scattering is restricted by the relatively coarse intrinsic resolution ellipsoid of the neutron triple-axis spectrometer (TAS). By implementing inelastic neutron spin echo on the host TAS using the Larmor precession of the neutron spin, the energy resolution of such measurements can be further improved without reducing the resolution ellipsoid. Measurements of the temperature-dependent phonon energy change are demonstrated using superconducting magnetic Wollaston prisms at the HB-1 instrument of the High-Flux Isotope Reactor at Oak Ridge National Laboratory, and the achievable resolution is <10 µeV.},
doi = {10.1107/S1600576719008008},
journal = {Journal of Applied Crystallography (Online)},
number = 4,
volume = 52,
place = {United States},
year = {Fri Jun 28 00:00:00 EDT 2019},
month = {Fri Jun 28 00:00:00 EDT 2019}
}
Web of Science
Figures / Tables:
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Works referencing / citing this record:
Design and performance of a superconducting neutron resonance spin flipper
journal, January 2020
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- Review of Scientific Instruments, Vol. 91, Issue 1
Figures / Tables found in this record: