Joint Workshop LANL/NIMS Quantum and Functional Materials and MANA International Symposium 2024


Session 3-2

Title

High-Pressure Synthesis of Bulk Materials for Targeting Quantum and Emerging Properties

Author's photo

Authors

Kazunari Yamaura

Affiliations

Group Leader, Quantum Solid State Materials Group, MANA

URL

https://www.nims.go.jp/mana/research/j4phan00000005e8.html

Email

YAMAURA.Kazunari@nims.go.jp

Abstract

Our study explores the development of novel bulk materials with exceptional exchange bias effects, addressing the limitations of spintronic devices reliant on layered magnetic interfaces. We focus on Cd2FeOsO6, a newly synthesized compound with unique properties under high-pressure conditions, positioning it as a strong candidate for next-generation spintronic materials [1-3]. We compare its exchange bias effects with leading materials, emphasizing its advantages and potential for enhancement. Our approach includes synthesizing and analyzing Cd2FeOsO6 bulk samples, evaluating their performance under various conditions, and conducting theoretical analyses using density functional theory (DFT). This presentation will discuss the material's properties and its potential impact on future technologies.

Fig. 1. Schematic diagram of the exchange bias effect in bulk materials.
Fig. 2. Comparison of exchange bias fields between spin valve devices and bulk materials without artificial interfaces. The bold red line (Os-oxide) represents the results of this work.

Reference

  1. X. Kang, et al., Chem. Mater. 35, 8621 (2023). DOI:10.1021/acs.chemmater.3c01653
  2. X. Kang, et al., Inorg. Chem. 62, 18474 (2023). DOI: 10.1021/acs.inorgchem.3c02671
  3. B. Dalal, et al., Phys. Rev. B 106, 104425 (2022). DOI: 10.1103/PhysRevB.106.104425