Realization of the axial next-nearest-neighbor Ising model in
Abstract
Here we report small-angle neutron scattering (SANS) measurements and theoretical modeling of U3Al2Ge3. Analysis of the SANS data reveals a phase transition to sinusoidally modulated magnetic order at TN = 63 K to be second order and a first-order phase transition to ferromagnetic order at T-c = 48 K. Within the sinusoidally modulated magnetic phase (T-c < T < T-N), we uncover a dramatic change, by a factor of 3, in the ordering wave vector as a function of temperature. These observations all indicate that U3Al2Ge3 is a close realization of the three-dimensional axial next-nearest-neighbor Ising model, a prototypical framework for describing commensurate to incommensurate phase transitions in frustrated magnets.
- Authors:
-
- Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
- Los Alamos National Lab. (LANL), Los Alamos, NM (United States); Argonne National Lab. (ANL), Argonne, IL (United States)
- National Inst. of Standards and Technology (NIST), Gaithersburg, MD (United States). Center for Neutron Research; Univ. of Maryland, College Park, MD (United States). Dept. of Materials Science and Engineering
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
- Publication Date:
- Research Org.:
- Los Alamos National Lab. (LANL), Los Alamos, NM (United States); Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Argonne National Lab. (ANL), Argonne, IL (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), Basic Energy Sciences (BES); LANL Laboratory Directed Research and Development (LDRD) Program; Dept. of Commerce (United States); National Science Foundation (NSF)
- OSTI Identifier:
- 1409774
- Alternate Identifier(s):
- OSTI ID: 1408169; OSTI ID: 1410942; OSTI ID: 1481410
- Report Number(s):
- LA-UR-17-24069
Journal ID: ISSN 2469-9950
- Grant/Contract Number:
- AC52-06NA25396; DMR-1508249; AC05-00OR22725; AC02-06CH11357
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Physical Review B
- Additional Journal Information:
- Journal Volume: 96; Journal Issue: 17; Journal ID: ISSN 2469-9950
- Publisher:
- American Physical Society (APS)
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; Material Science
Citation Formats
Fobes, David M., Lin, Shi-Zeng, Ghimire, Nirmal J., Bauer, Eric D., Thompson, Joe D., Bleuel, Markus, DeBeer-Schmitt, Lisa M., and Janoschek, Marc. Realization of the axial next-nearest-neighbor Ising model in U3Al2Ge3. United States: N. p., 2017.
Web. doi:10.1103/PhysRevB.96.174413.
Fobes, David M., Lin, Shi-Zeng, Ghimire, Nirmal J., Bauer, Eric D., Thompson, Joe D., Bleuel, Markus, DeBeer-Schmitt, Lisa M., & Janoschek, Marc. Realization of the axial next-nearest-neighbor Ising model in U3Al2Ge3. United States. https://doi.org/10.1103/PhysRevB.96.174413
Fobes, David M., Lin, Shi-Zeng, Ghimire, Nirmal J., Bauer, Eric D., Thompson, Joe D., Bleuel, Markus, DeBeer-Schmitt, Lisa M., and Janoschek, Marc. Thu .
"Realization of the axial next-nearest-neighbor Ising model in U3Al2Ge3". United States. https://doi.org/10.1103/PhysRevB.96.174413. https://www.osti.gov/servlets/purl/1409774.
@article{osti_1409774,
title = {Realization of the axial next-nearest-neighbor Ising model in U3Al2Ge3},
author = {Fobes, David M. and Lin, Shi-Zeng and Ghimire, Nirmal J. and Bauer, Eric D. and Thompson, Joe D. and Bleuel, Markus and DeBeer-Schmitt, Lisa M. and Janoschek, Marc},
abstractNote = {Here we report small-angle neutron scattering (SANS) measurements and theoretical modeling of U3Al2Ge3. Analysis of the SANS data reveals a phase transition to sinusoidally modulated magnetic order at TN = 63 K to be second order and a first-order phase transition to ferromagnetic order at T-c = 48 K. Within the sinusoidally modulated magnetic phase (T-c < T < T-N), we uncover a dramatic change, by a factor of 3, in the ordering wave vector as a function of temperature. These observations all indicate that U3Al2Ge3 is a close realization of the three-dimensional axial next-nearest-neighbor Ising model, a prototypical framework for describing commensurate to incommensurate phase transitions in frustrated magnets.},
doi = {10.1103/PhysRevB.96.174413},
journal = {Physical Review B},
number = 17,
volume = 96,
place = {United States},
year = {2017},
month = {11}
}
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