Competition between interfacial and interlayer exchange couplings in Co/Cr2O3/Fe trilayers

Exchange couplings in magnetic films

“…We reported the observation of temperature dependence of exchange coupling in FM/Cr 2 O 3 /FM trilayers with FM Co, Fe, Ni 80 Fe 20 layers. [69] Figure 12 (25 nm) /Fe (10 nm) after ZFC. [69] The hysteresis loops at 10 K of trilayers with different spacer thicknesses 3 nm, 6 nm, 15 nm, and 25 nm after ZFC (solid symbol) and FC (open symbol) are presented in Fig.…”

“…[69] Figure 12 (25 nm) /Fe (10 nm) after ZFC. [69] The hysteresis loops at 10 K of trilayers with different spacer thicknesses 3 nm, 6 nm, 15 nm, and 25 nm after ZFC (solid symbol) and FC (open symbol) are presented in Fig. 13(a)-13(d), respectively.…”

“…[59] Applied field/kOe ). [69] The curves of L versus T with spacer thickness of 3, 6, 15 nm are presented in Fig. 14.…”

“…Temperature dependence of asymmetrical coefficient L for samples with t = 3 nm, 6 nm and 15 nm. [69] To further clarify the relationship between magnetization orientation of FM layers and spin-dependent scattering magnetoresistance (MR), the resistance (R) and magnetic hysteresis loops for 3 nm after FC are shown in Fig. 15.…”

Modification of the ferromagnetic anisotropy and exchange bias field of NiFe/CoO/Co trilayers through the CoO spacer thicknesses

“…The transition from single loop (two FM layers reverse together) to two-phase loops at different temperatures for the trilayer films reflects the competition between interfacial exchange coupling (that dominates at much lower temperatures) and IEC. 14 The hysteresis loops of the trilayers with thicker CoO layers (t CoO ¼ 6, 12, and 20 nm) at 10 K are shown in Fig. 3.…”