skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Realization of the axial next-nearest-neighbor Ising model in U 3 Al 2 Ge 3

Journal Article · · Physical Review B
 [1];  [1];  [2];  [1];  [1];  [3];  [4];  [1]
  1. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
  2. Los Alamos National Lab. (LANL), Los Alamos, NM (United States); Argonne National Lab. (ANL), Argonne, IL (United States)
  3. 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
  4. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)

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.

Research Organization:
Los Alamos National Laboratory (LANL), Los Alamos, NM (United States); Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States); Argonne National Laboratory (ANL), Argonne, IL (United States)
Sponsoring Organization:
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)
Grant/Contract Number:
AC52-06NA25396; DMR-1508249; AC05-00OR22725; AC02-06CH11357
OSTI ID:
1409774
Alternate ID(s):
OSTI ID: 1408169; OSTI ID: 1410942; OSTI ID: 1481410
Report Number(s):
LA-UR-17-24069
Journal Information:
Physical Review B, Vol. 96, Issue 17; ISSN 2469-9950
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 1 work
Citation information provided by
Web of Science

References (21)

Phenomenological Discussion of Magnetic Ordering in the Heavy Rare-Earth Metals journal October 1961
Spherical neutron polarimetry with MuPAD journal July 2007
Generalized Ginzburg-Landau theory for nonuniform FFLO superconductors journal February 1997
Commensurate phases, incommensurate phases and the devil's staircase journal June 1982
Magnetic phase transitions of CeSb. I. Zero applied magnetic field journal January 1978
Frozen-In Devil's Staircase in U(Ru 1- x Rh x ) 2 Si 2 Mixed Compound System as Studied by Neutron Diffraction journal February 1994
Ground State of the Classical XY Model with Twofold Symmetry Breaking Field Pertaining to the Devil's Staircase journal January 1998
Frustration and the Kondo Effect in Heavy Fermion Materials journal September 2010
Low temperature magnetic structure of CeRhIn 5 by neutron diffraction on absorption-optimized samples journal March 2017
Origin of modulated phases and magnetic hysteresis in TmB 4 journal December 2015
Possible devil's staircase in the Kondo lattice CeSbSe journal July 2017
Magnetic structure of CeRhIn 5 under magnetic field journal May 2007
The ANNNI model — Theoretical analysis and experimental application journal November 1988
Phase locking in Heisenberg helimagnets journal May 1990
Magnitude of the Magnetic Exchange Interaction in the Heavy-Fermion Antiferromagnet CeRhIn 5 journal December 2014
On magnetic phase transitions in CeBi journal January 1982
Magnetic structures of U3M2M3′, M=Al, Ga; M′=Si, Ge: a neutron powder diffraction study journal January 1999
Ising model with solitons, phasons, and "the devil's staircase" journal June 1980
Magnetic phase transitions of CeSb. II. Effects of applied magnetic fields journal March 1978
Die Röntgenkleinwinkelstreuung von dichtgepackten kolloiden Systemen: I. Teil journal November 1951
Fluctuation-induced first-order phase transition in Dzyaloshinskii-Moriya helimagnets journal April 2013

Similar Records

Unconventional magnetic field response of the hyperhoneycomb Kitaev magnet β Li 2 IrO 3
Journal Article · Wed Jan 22 00:00:00 EST 2020 · Physical Review Research · OSTI ID:1409774

Weak exchange striction between the 4f and 3d ions in the multiferroic GdMn2O5
Journal Article · Thu Mar 21 00:00:00 EDT 2019 · Physical Review B · OSTI ID:1409774

Complex magnetic order in the decorated spin-chain system Rb2Mn3(MoO4)3(OH)2
Journal Article · Mon Feb 24 00:00:00 EST 2020 · Physical Review B · OSTI ID:1409774