Work

Semiquantum thermodynamics of complex ferrimagnets

Year: 2019

Type: article

Abstract: High-quality magnets such as yttrium iron garnet (YIG) are electrically insulating and very complex. By implementing a quantum thermostat into atomistic spin dynamics we compute YIG's key thermodynamic properties, viz., the magnon power spectrum and specific heat, for a large temperature range. The results differ (sometimes spectacularly) from simple models and classical statistics, but agree with available experimental data.

Source: Physical review. B./Physical review. B

DOI: 10.1103/physrevb.100.140401

Authors: Joseph Barker, Gerrit E. W. Bauer

Institutions: Tohoku University, Institute for Materials Research, Tohoku University, University of Groningen, Zernike Institute for Advanced Materials

Language: English

Topic: Advanced Condensed Matter Physics

Subfield: Condensed Matter Physics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: hybrid

Funders: Deutscher Akademischer Austauschdienst, Tohoku University, Japan Society for the Promotion of Science

Awards: Magnon Chemistry, G3675288833, G7627573086