Effective field theory approach for the S= 32 bilayer honeycomb antiferromagnet

Lamas, Carlos Alberto et al · American Physical Society · 2021

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Author / responsible party

Lamas, Carlos Alberto et al

Publisher

American Physical Society

Year

2021

ISSN

1098-0121

ISSN

1098-0121

Language

English

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The spin-32 Heisenberg antiferromagnet on the bilayer honeycomb lattice is a minimal model to describe the magnetic behavior of Bi3Mn4O12(NO3). We study this model with frustrating interlayer second-neighbor couplings taking into account quantum and thermal fluctuations. We use a path integral formulation in terms of coherent states to describe the low-energy physics of the model. We show that for a particular point in the parameter space, close to the experimental estimated couplings, a continuum classical degeneracy is lifted by both quantum and thermal fluctuations, and a collinear state is then selected by an order by disorder mechanism. Our results provide a global perspective in the understanding of the experimental observations. Fil: Lamas, Carlos Alberto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Física La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Física La Plata; Argentina Fil: Acevedo, Santiago Daniel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Física La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Física La Plata; Argentina

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APA 7

Lamas, C. A. E. A. (2021). Effective field theory approach for the S= 32 bilayer honeycomb antiferromagnet. http://hdl.handle.net/11336/178471

MLA

Lamas, Carlos Alberto et al. "Effective field theory approach for the S= 32 bilayer honeycomb antiferromagnet." 2021. http://hdl.handle.net/11336/178471.

Chicago

Lamas, Carlos Alberto et al. 2021. "Effective field theory approach for the S= 32 bilayer honeycomb antiferromagnet.". http://hdl.handle.net/11336/178471.

Harvard

Lamas, C. A. E. A. 2021, Effective field theory approach for the S= 32 bilayer honeycomb antiferromagnet, American Physical Society, available at: http://hdl.handle.net/11336/178471 [Accessed 10 Aug. 2026].

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Title: Effective field theory approach for the S= 32 bilayer honeycomb antiferromagnet

Author / contributors: Lamas, Carlos Alberto et al

Publisher: American Physical Society

Publication year: 2021

ISSN: 1098-0121

ISSN: 1098-0121

Language: English

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