Electric and Magnetic Signatures of Structural and Chemical Ordering of Heusler Alloy Films

• Authors: J. Dubowik , I. Gościańska , K. Załęski , Y. Kudryavtsev , Y. Lee
• Languages of publication: EN

Abstracts

EN

We present results of in situ temperature measurements of resistivity for some amorphous or partially crystalline Heusler alloy films: Co_{2}CrAl, Co_{2}MnGa and off-stoichiometric Ni_{2}Mn_{1+x}Sn_{x}, Ni_{2}Mn_{1-x}Ga_{x} that are known to exhibit half-metallic properties and martensitic transformations, respectively. From ρ vs. T characteristics we distinguish various stages of chemical and structural ordering in the films. They appear to be quite distinct in both systems investigated. The resistivity results are compared with magnetic characteristics for Co_{2}MnGa with a high Curie temperature.

Keywords

EN

72.80.Ng; 73.61.-r; 75.70.-i; 76.50.+g

Discipline

• 75.70.-i: Magnetic properties of thin films, surfaces, and interfaces(for magnetic properties of nanostructures, see 75.75.-c)
• 73.61.-r: Electrical properties of specific thin films(for optical properties of thin films, see 78.20.-e and 78.66.-w; for magnetic properties of thin films, see 75.70.-i)
• 72.80.Ng: Disordered solids
• 76.50.+g: Ferromagnetic, antiferromagnetic, and ferrimagnetic resonances; spin-wave resonance(see also 75.30.Ds Spin waves)

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2009
• Volume: 115
• Issue: 1
• Pages: 360-362

Dates

published

2009-01

Contributors

author

J. Dubowik

• Institute of Molecular Physics, Polish Academy of Sciences, M. Smoluchowskiego 17, 60-179 Poznań, Poland

author

I. Gościańska

• Department of Physics, A. Mickiewicz University, Umultowska 85, 61-614 Poznań, Poland

author

K. Załęski

• Institute of Molecular Physics, Polish Academy of Sciences, M. Smoluchowskiego 17, 60-179 Poznań, Poland

author

Y. Kudryavtsev

• Institute of Metal Physics, National Academy of Sciences of Ukraine, 252680, Kiev-142, Ukraine

author

Y. Lee

• q-psi and Department of Physics, Hanyang University, Seoul, 133-791 Korea

References

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Identifiers

DOI

10.12693/APhysPolA.115.360