Fundamental Limitations of Half-Metallicity in Spintronic Materials

Alexander Solontsov

doi:10.4028/www.scientific.net/SSP.215.22

Paper Titles

Phase Transitions in the Antiferromagnetic Heisenberg Model on a Triangular Lattice with the Next-Nearest Neighbor Interactions
p.3

Magnetic Response of Pr_1-xLaCe_xCuO₄ in Comparison with Hole-Doped Cuprates
p.11

Ising Antiferromagnet with Nearest-Neighbor and Next-Nearest-Neighbor Interactions on a Square Lattice
p.17

Fundamental Limitations of Half-Metallicity in Spintronic Materials
p.22

Electronic Structure and Magnetic Properties of Iron Doped TiO₂ (Rutile): XPS Measurements and CPA Calculations
p.28

Statistical and Multifractal Properties of Barkhausen Jumps in Exchange-Coupled Antiferromagnetic/Ferromagnetic Bilayers
p.35

Modulated Nanomagnetics
p.41

Electronic Structure of Nonstoichiometric LaMnO_3-x Calculated in the Coherent Potential Approximation
p.46

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Fundamental Limitations of Half-Metallicity in Spintronic Materials

Abstract:

Zero-point spin fluctuations are shown to strongly influence the ground state of ferromagnetic metals and to impose limitations for the fully spin polarized state assumed in half-metallic ferromagnets, which may influence their applications in spintronics. This phenomenon leads to the low-frequency Stoner excitations and cause strong damping and softening of magnons in magnetoresistive manganites observed experimentally.

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Periodical:

Solid State Phenomena (Volume 215)

Pages:

22-27

DOI:

https://doi.org/10.4028/www.scientific.net/SSP.215.22

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Online since:

April 2014

Authors:

Alexander Solontsov*

Keywords:

Half-Metallic Ferromagnets, Magnon Damping, Softening, Spintronic Materials, Two-Fluid Model , Zero-Point Spin Fluctuations

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