Ultralong Spin Lifetime in Light Alkali Atom Doped Graphene

Márkus BG, Szirmai P, Edelthalhammer K, Eckerlein P, Hirsch A, Hauke F, Nemes NM, Chacón-Torres JC, Náfrádi B, Forró L, Pichler T, Simon F (2020)


Publication Type: Journal article

Publication year: 2020

Journal

Book Volume: 14

Pages Range: 7492-7501

Journal Issue: 6

DOI: 10.1021/acsnano.0c03191

Abstract

Today's great challenges of energy and informational technologies are addressed with a singular compound, Li- and Na-doped few-layer graphene. All that is impossible for graphite (homogeneous and high-level Na doping) and unstable for single-layer graphene works very well for this structure. The transformation of the Raman G line to a Fano line shape and the emergence of strong, metallic-like electron spin resonance (ESR) modes attest the high level of graphene doping in liquid ammonia for both kinds of alkali atoms. The spin-relaxation time in our materials, deduced from the ESR line width, is 6-8 ns, which is comparable to the longest values found in spin-transport experiments on ultrahigh-mobility graphene flakes. This could qualify our material as a promising candidate in spintronics devices. On the other hand, the successful sodium doping, this being a highly abundant metal, could be an encouraging alternative to lithium batteries.

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How to cite

APA:

Márkus, B.G., Szirmai, P., Edelthalhammer, K., Eckerlein, P., Hirsch, A., Hauke, F.,... Simon, F. (2020). Ultralong Spin Lifetime in Light Alkali Atom Doped Graphene. ACS nano, 14(6), 7492-7501. https://doi.org/10.1021/acsnano.0c03191

MLA:

Márkus, B. G., et al. "Ultralong Spin Lifetime in Light Alkali Atom Doped Graphene." ACS nano 14.6 (2020): 7492-7501.

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