Complex magnetic ordering in EuAl4–A 151Eu Mössbauer study

Ryan, Dominic H.; Kuthanazhi, Brinda; Jo, Na Hyan; Canfield, Paul C.

doi:10.1063/9.0000621

Complex magnetic ordering in EuAl₄–A ¹⁵¹Eu Mössbauer study

Journal Article · Tue Jan 23 00:00:00 EST 2024 · AIP Advances

DOI:https://doi.org/10.1063/9.0000621· OSTI ID:2283157

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McGill Univ., Montreal, QC (Canada)
Ames Lab., and Iowa State Univ., Ames, IA (United States)
Ames Lab., and Iowa State Univ., Ames, IA (United States); Univ. of Michigan, Ann Arbor, MI (United States)

¹⁵¹Eu Mössbauer spectroscopy has been used to investigate the behaviour of EuAl₄ through the four magnetic transitions that occur below 16 K. We find clear evidence for the first transition (T_N1, the onset of order) where an incommensurate modulated magnetic structure appears, and the third (T_N3) where the modulation disappears at the tetragonal → orthorhombic structural transition. We see no changes at the lowest transition (T_N4) but find that the modulation amplitude passes through a maximum at T_N2. Data on the isostructural but magnetically simpler EuGa₄ are also presented for comparison.

Research Organization:: Ames Laboratory (AMES), Ames, IA (United States)

Sponsoring Organization:: USDOE Office of Science (SC), Basic Energy Sciences (BES). Materials Sciences & Engineering Division (MSE)

Grant/Contract Number:: AC02-07CH11358

OSTI ID:: 2283157

Report Number(s):: IS-J--11250

Journal Information:: AIP Advances, Journal Name: AIP Advances Journal Issue: 1 Vol. 14; ISSN 2158-3226

Publisher:: American Institute of Physics (AIP)Copyright Statement

Country of Publication:: United States

Language:: English

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Figures / Tables (6)

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Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
Fourier analysis
Mossbauer spectroscopy
crystal structure
hyperfine structure
isomeric shift
magnetic ordering