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Magnetic properties of single crystalline itinerant ferromagnet AlFe2B2

Journal Article · · Physical Review Materials
 [1];  [1];  [2];  [3];  [3];  [2];  [2];  [2];  [1];  [1]
  1. Ames Lab. and Iowa State Univ., Ames, IA (United States)
  2. Ames Lab., Ames, IA (United States)
  3. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Here, single crystals of AlFe2B2 have been grown using the self-flux growth method, and then we measured the structural properties, temperature- and field-dependent magnetization, and temperature-dependent electrical resistivity at ambient as well as high pressure. The Curie temperature of AlFe2B2 is determined to be 274 K. The measured saturation magnetization and the effective moment for the paramagnetic Fe ion indicate the itinerant nature of the magnetism with a Rhode-Wohlfarth ratio MC/Msat ≈ 1.14. Temperature-dependent resistivity measurements under hydrostatic pressure show that transition temperature TC is suppressed down to 255 K for p = 2.24 GPa pressure with a suppression rate of ~–8.9 K/GPa. The anisotropy fields and magnetocrystalline anisotropy constants are in reasonable agreement with density functional theory calculations.
Research Organization:
Ames Laboratory (AMES), Ames, IA (United States)
Sponsoring Organization:
USDOE
Grant/Contract Number:
AC02-07CH11358
OSTI ID:
1471218
Alternate ID(s):
OSTI ID: 1465227
Report Number(s):
IS-J--9709
Journal Information:
Physical Review Materials, Journal Name: Physical Review Materials Journal Issue: 8 Vol. 2; ISSN PRMHAR; ISSN 2475-9953
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English

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Cited By (8)

A Hydride Route to Ternary Alkali Metal Borides: A Case Study of Lithium Nickel Borides journal February 2019
Novel MAB phases and insights into their exfoliation into 2D MBenes journal January 2019
A progress report on the MAB phases: atomically laminated, ternary transition metal borides journal July 2019
Near room temperature antiferromagnetic ordering with a potential low-dimensional magnetism in AlMn 2 B 2 journal June 2019
Effects of Al and Fe solubility on the magnetofunctional properties of AlFe 2 B 2 journal September 2019
Critical behavior of intercalated quasi-van der Waals ferromagnet F e 0.26 Ta S 2 journal November 2019
A progress report on the MAB phases: atomically laminated, ternary transition metal borides text January 2019
A progress report on the MAB phases: atomically laminated, ternary transition metal borides text January 2019

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