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R3c-Type Lnnio3 (Ln = La, Ce, Nd, Pm, Gd, Tb, Dy, Ho, Er, Lu) Half-Metals With Multiple Dirac Cones: A Potential Class Of Advanced Spintronic Materials, Xiaotian Wang, Guangqian Ding, Zhenxiang Cheng, Hongkuan Yuan, Xiaolin Wang, Tie Yang, Rabah Khenata, Wenhong Wang
R3c-Type Lnnio3 (Ln = La, Ce, Nd, Pm, Gd, Tb, Dy, Ho, Er, Lu) Half-Metals With Multiple Dirac Cones: A Potential Class Of Advanced Spintronic Materials, Xiaotian Wang, Guangqian Ding, Zhenxiang Cheng, Hongkuan Yuan, Xiaolin Wang, Tie Yang, Rabah Khenata, Wenhong Wang
Australian Institute for Innovative Materials - Papers
In the past three years, Dirac half-metals (DHMs) have attracted considerable attention and become a high-profile topic in spintronics becuase of their excellent physical properties such as 100% spin polarization and massless Dirac fermions. Two-dimensional DHMs proposed recently have not yet been experimentally synthesized and thus remain theoretical. As a result, their characteristics cannot be experimentally confirmed. In addition, many theoretically predicted Dirac materials have only a single cone, resulting in a nonlinear electromagnetic response with insufficient intensity and inadequate transport carrier efficiency near the Fermi level. Therefore, after several attempts, we have focused on a novel class of DHMs …
Perovskite R3c Phase Agcuf3: Multiple Dirac Cones, 100% Spin Polarization And Its Thermodynamic Properties, Minquan Kuang, Tingzhou Li, Zhenxiang Cheng, Houari Khachai, Rabah Khenata, Tie Yang, Tingting Lin, Xiaotian Wang
Perovskite R3c Phase Agcuf3: Multiple Dirac Cones, 100% Spin Polarization And Its Thermodynamic Properties, Minquan Kuang, Tingzhou Li, Zhenxiang Cheng, Houari Khachai, Rabah Khenata, Tie Yang, Tingting Lin, Xiaotian Wang
Australian Institute for Innovative Materials - Papers
Very recently, experimentally synthesized R3c phase LaCuO3 was studied by Zhang, Jiao, Kou, Liao & Du [J. Mater. Chem. C (2018), 6, 6132-6137], and they found that this material exhibits multiple Dirac cones in its non-spin-polarized electronic structure. Motivated by this study, the focus here is on a new R3c phase material, AgCuF3, which has a combination of multiple Dirac cones and 100% spin polarization properties. Compared to the non-spin-polarized system LaCuO3, the spin-polarized Dirac behavior in AgCuF3 is intrinsic. The effects of on-site Coulomb interaction, uniform strain and spin-orbit coupling were added to examine the stability of its multiple …