Systematic Analysis Method for Nonlinear Response Tensors
نویسندگان
چکیده
We propose a systematic analysis method for identifying essential parameters in various linear and nonlinear response tensors without which they vanish. By using the Keldysh formalism Chebyshev polynomial expansion method, are decomposed into model-independent dependent parts, latter is utilized to extract parameters. An application of demonstrated by analyzing Hall effect ferroelectric SnTe monolayer example. It shown that this example second-neighbor hopping whereas spin–orbit coupling unnecessary. Moreover, terms contributing lowest order, appearance can be interpreted subsequent two processes: orbital magneto-current anomalous induced magnetization. In way, present provides microscopic picture responses. combining with computational analysis, it stimulates further discoveries responses filling missing link among hidden degrees freedom wide variety materials.
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ژورنال
عنوان ژورنال: Journal of the Physical Society of Japan
سال: 2022
ISSN: ['0031-9015', '1347-4073']
DOI: https://doi.org/10.7566/jpsj.91.014701