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Title: Magnetic and Mössbauer characterization of the magnetic properties of single-crystalline sub-micron sized Bi₂Fe₄O₉ cubes

Journal Article · · Current Applied Physics
 [1];  [2];  [1];  [3];  [3];  [3];  [4]
  1. Villanova Univ., Villanova, PA (United States)
  2. State Univ. of New York at Stony Brook, Stony Brook, NY (United States); Brookhaven National Lab. (BNL), Upton, NY (United States)
  3. Univ., et INSA de Rouen, Saint Etienne du Rouvray, Cedex (France)
  4. State Univ. of New York at Stony Brook, Stony Brook, NY (United States)

Magnetic and Mössbauer characterization of single crystalline, sub-micron sized Bi₂Fe₄O₉ cubes has been performed using SQUID magnetometry and transmission Mössbauer spectroscopy in the temperature range of 4.2 K ≤ T ≤ 300 K. A broad magnetic phase transition from the paramagnetic to the anti-ferromagnetic state is observed below 250 K, with the Mössbauer spectra exhibiting a superposition of magnetic, collapsed and quadrupolar spectra in the transition region of 200 K < T < 245 K. Room temperature Mössbauer spectra obtained in transmission geometry are identical to those recorded in back-scattering geometry via conversion electron Mössbauer spectroscopy, indicating the absence of strain at the surface. A small hysteresis loop is observed in SQUID measurements at 5 K, attributable to the presence of weak-ferromagnetism arising from the canting of Fe³⁺ ion sublattices in the antiferromagnetic matrix.

Research Organization:
Brookhaven National Laboratory (BNL), Upton, NY (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
Grant/Contract Number:
SC00112704; AC02-98CH10886
OSTI ID:
1182526
Alternate ID(s):
OSTI ID: 1251709
Report Number(s):
BNL-107583-2015-JA; R&D Project: PM037; KC0201030
Journal Information:
Current Applied Physics, Vol. 15, Issue 3; ISSN 1567-1739
Publisher:
Korean Physical SocietyCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 16 works
Citation information provided by
Web of Science

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Size, shape, and orientation dependence of the field-induced behavior in ferroelectric nanoparticles journal April 2019
Metastable vortex-like polarization textures in ferroelectric nanoparticles of different shapes and sizes journal August 2018
Electromechanical control of polarization vortex ordering in an interacting ferroelectric-dielectric composite dimer journal August 2018
Electromechanical control of polarization vortex ordering in an interacting ferroelectric-dielectric composite dimer text January 2019