February 26, 2024Applied Physics LettersOpen Access

Improvement of ferroelectric phase fraction in HfO2 via La-containing co-doping method

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YTYushui TianGuangxi University YZYulu ZhouGuangxi University MZMiao ZhaoAnkang University

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Implication

First-principles calculations show that co-doping lanthanum with tantalum or niobium increases orthorhombic phase in hafnium oxide, suggesting viable routes to enhance ferroelectricity.

Key Points

Co-doping lanthanum with tantalum or niobium significantly increases the ferroelectric orthorhombic phase fraction in hafnium oxide, which directly improves material ferroelectricity.
First-principles calculations reveal that oxygen vacancies coupled with lanthanide and group VB dopants effectively promote the formation of the desired ferroelectric phase.
Highlights valuable methods for improving the ferroelectric properties of hafnium oxide, while first-principles models require further experimental validation.

Cite This Study

Tian et al. (2024) studied this question.

synapsesocial.com/papers/68e778dab6db6435876ed903 https://doi.org/10.1063/5.0190459

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Implication

First-principles calculations show that co-doping lanthanum with tantalum or niobium increases orthorhombic phase in hafnium oxide, suggesting viable routes to enhance ferroelectricity.

Improvement of ferroelectric phase fraction in HfO2 via La-containing co-doping method

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Implication

Key Points

Cite This Study

Improvement of ferroelectric phase fraction in HfO2 via La-containing co-doping method

Discussion

Member takes

Implication

Key Points

Cite This Study

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