Title

Magnetic properties of single crystalline itinerant ferromagnet AlFe2B2

Campus Units

Physics and Astronomy, Ames Laboratory

Document Type

Article

Publication Version

Published Version

Publication Date

8-20-2018

Journal or Book Title

Physical Review Materials

Volume

2

Issue

8

First Page

084408

DOI

10.1103/PhysRevMaterials.2.084408

Abstract

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 MCMsat≈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.

Comments

This article is published as Lamichhane, Tej N., Li Xiang, Qisheng Lin, Tribhuwan Pandey, David S. Parker, Tae-Hoon Kim, Lin Zhou, Matthew J. Kramer, Sergey L. Bud'ko, and Paul C. Canfield. "Magnetic properties of single crystalline itinerant ferromagnet AlFe 2 B 2." Physical Review Materials 2, no. 8 (2018): 084408. DOI: 10.1103/PhysRevMaterials.2.084408. Posted with permission.

Copyright Owner

American Physical Society

Language

en

File Format

application/pdf

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