In the present report, we study the large exchange bias effect in Sm₂CoMnO₆ (SCMO) polycrystalline samples synthesized with the presence of two crystallographic phases: ordered-phase (monoclinic; P2₁/n) and disordered-phase (orthorhombic; Pnma). X-ray photoelectron spectroscopy study revealed the presence of mixed valence states for Co (2+ & 3+) and Mn (4+ & 3+). M(T) data exhibits an inhomogeneous magnetic state with the presence of ferromagnetic ordering at T_C ∼128 K due to the super-exchange interactions of Co²⁺-O^2--Mn⁴⁺ and antiferromagnetic-like spin correlations for T < 50 K, attributed to Co³⁺-O^2--Co³⁺, and Mn³⁺-O^2--Mn³⁺ interactions. M(H) loop shift with a conventional exchange bias (EB) effect of 10 kOe for a field-cooled (H_FC) of 10 kOe at 2 K was observed. Such a large value of the EB effect for low H_FC in SCMO is comparable to that of large EB compounds, such as La_1·5Sr_0·5CoMnO₆ and NiFe₂O₄/CoO nanocomposites. The zero-field cooled asymmetry in the M(H) loop is termed a spontaneous exchange bias effect (SEB) observed for T < 20 K. The systematic study of EB effects like H_EB and M_EB with T(K) and HFC was explained qualitatively by the presence of unidirectional anisotropy formed at the interface of inhomogeneous magnetic phases. Further, density functional theory (DFT) calculations validate the ferromagnetic ground state of SCMO with Co and Mn networks. Moreover, the semiconductor characteristics of SCMO are established with a band gap of 1.3 eV.

在本报告中，我们研究了 Sm 中的大交换偏向效应₂CoMnO_{6< /span>6} 对于 T(K) 和 HFC，通过在非均匀磁相界面处形成的单向各向异性的存在进行定性解释。此外，密度泛函理论 (DFT) 计算验证了具有 Co 和 Mn 网络的 SCMO 的铁磁基态。此外，SCMO 的半导体特性是在带隙为 1.3 eV 的情况下建立的。_EB 和 M_EB < 20 K. HT) 回路中的零场冷却不对称性为称为自发交换偏差效应 (SEB)，观察到 H(M/CoO纳米复合材料。 ₄O₂ 和 NiFeCoMnO_0·5Sr 的 EB 效应值与大 EB 化合物（例如 La_FC) 在 2 K 下观察到 10 kOe。 SCMO 中低 H_FCH 交互作用。 M(H) 环路位移，场冷 (³⁺-Mn ∼128 K 处存在铁磁有序。 /span>-O³⁺、Mn³⁺-Co ^2--O³⁺ <; 50 K，归因于 CoT 和类反铁磁自旋相关性 ⁴⁺-Mn^2--O²⁺_C）。 X射线光电子能谱研究揭示了Co（2+和3+）和Mn（4+和3+）的混合价态的存在。 M(T) 数据表现出不均匀的磁态，由于 Co< 的超交换相互作用，在 T a>）和无序相（斜方晶系；n/₁2P2P (SCMO) 多晶样品合成时存在两种晶相：有序相（单斜晶；