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1. Double-Exchange Bias Modulation under Horizontal and Perpendicular Field Directions by 3D Nanocomposite Design

   https://doi.org/10.1021/acsami.1c14699  

   Huang, Jijie; Zhang, Di; Liu, Juncheng; Dou, Hongyi; Wang, Haiyan (October 2021, ACS Applied Materials & Interfaces)
2. Exchange bias in La0.7Sr0.3CrO3/La0.7Sr0.3MnO3/La0.7Sr0.3CrO3 heterostructures

   https://doi.org/10.1063/1.5130453  

   Olmos, Rubyann; Iturriaga, Hector; Blazer, Dawn_S; Koohfar, Sanaz; Gandha, Kinjal; Nlebedim, Ikenna_C; Kumah, Divine_P; Singamaneni, Srinivasa_R (January 2020, AIP Advances)

   In the recent past, heterostructures of magnetic oxide thin films have attracted a great deal of research excitement due to very interesting physical properties such as antiferromagnetic interlayer coupling, tunable exchange-bias, interfacial driven magnetic properties and high mobility electron gas across the interfaces. In this work, we report on the comprehensive magnetic properties observed from the heterostructures of (2 unit cells) La0.7Sr0.3CrO3/(8 unit cells) La0.7Sr0.3MnO3/(2 unit cells) La0.7Sr0.3CrO3, which are epitaxially deposited on SrTiO3 substrate by plasma-assisted oxide molecular beam epitaxy. Using SQUID magnetometer, the magnetic properties are studied when the magnetic field was applied both in plane and out of plane. The Curie temperature of this structure is found to be at 290 K. Most significantly, at 2 K, we observed a complete up/down shift (along magnetization axis) of hysteresis loop when the sample was cooled under a magnetic field of ± 5000 Oe in the in-plane configuration. We believe that the strong antiferromagnetic (super) exchange coupling of Mn-Cr across the two interfaces is responsible for the observed exchange bias. We will present and discuss our in-detailed experimental findings collected on this heterostructure as a function of temperature and magnetic field. 

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3. Exchange Bias Between van der Waals Materials: Tilted Magnetic States and Field‐Free Spin–Orbit‐Torque Switching

   https://doi.org/10.1002/adma.202305739  

   Cham, Thow_Min_Jerald; Dorrian, Reiley_J; Zhang, Xiyue_S; Dismukes, Avalon_H; Chica, Daniel_G; May, Andrew_F; Roy, Xavier; Muller, David_A; Ralph, Daniel_C; Luo, Yunqiu_Kelly (January 2024, Advanced Materials)

   Abstract Magnetic van der Waals heterostructures provide a unique platform to study magnetism and spintronics device concepts in the 2D limit. Here, studies of exchange bias from the van der Waals antiferromagnet CrSBr acting on the van der Waals ferromagnet Fe₃GeTe₂(FGT) are reported. The orientation of the exchange bias is along the in‐plane easy axis of CrSBr, perpendicular to the out‐of‐plane anisotropy of the FGT, inducing a strongly tilted magnetic configuration in the FGT. Furthermore, the in‐plane exchange bias provides sufficient symmetry breaking to allow deterministic spin–orbit torque switching of the FGT in CrSBr/FGT/Pt samples at zero applied magnetic field. A minimum thickness of the CrSBr of >10 nm is needed to provide a non‐zero exchange bias at 30 K. 

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4. Magnetoionic control of perpendicular exchange bias

   https://doi.org/10.1103/PhysRevMaterials.5.L061401  

   Zehner, J.; Wolf, D.; Hasan, M. U.; Huang, M.; Bono, D.; Nielsch, K.; Leistner, K.; Beach, G. S. (June 2021, Physical Review Materials)
5. Exchange bias without directional anisotropy in permalloy/CoO bilayers

   https://doi.org/10.1103/PhysRevB.104.144413  

   Mitrofanov, Alexander; Chen, Guanxiong; Kozhanov, Alexander; Urazhdin, Sergei (October 2021, Physical Review B)