Evidence of silicide at the Ni/β-Si3N4(0001)/Si(111) interface

Doping dependent intrinsic magnetization in silicon in Ni/Si heterostructures

“…Further, the role of silicides can be ruled out, as the known phases of nickel silicides are nonmagnetic 15 , 16 , and their presence is mitigated by the growth technique (see also Ref. 14 ).…”

“…Two Ag/Ni/Si N /Si[111] hetero-structures differing only for the doping concentration of the Si substrate—namely low doped (LD), with resistivity 10 cm (N 17 ) and high doped (HD), with resistivity 0.005 cm (N 17 ), both p-type with B dopant acceptors—were grown at the VUV-Photoemission beamline (Elettra Sincrotrone Trieste). The silicon substrates were passivated with nitride in order to reduce the formation of silicides, resulting in the formation of a crystalline bilayer of Si N 18 , 19 , of subnanometric thickness 14 . The presence of a finite amount of Ni silicides in the Si substrate is restricted within 3 nm from the Si N layer into the Si substrate 14 .…”

“…The silicon substrates were passivated with nitride in order to reduce the formation of silicides, resulting in the formation of a crystalline bilayer of Si N 18 , 19 , of subnanometric thickness 14 . The presence of a finite amount of Ni silicides in the Si substrate is restricted within 3 nm from the Si N layer into the Si substrate 14 . Subsequently, 7 nm of Ni were deposited at liquid nitrogen to form epitaxial layers 20 .…”

“…The details on the experimental setup and on the measurements can be found in other sources 11 , 25 . Additionally, the same interface has been characterized by HRTEM, revealing that the presence of silicides at the interface was kept under control during the sample growth 14 .…”

Industrially Promising β‐Ni(OH)2 Nanosheets Self‐Supported Electrode for Highly Efficient Electrooxidation of 5‐Hydroxymethylfurfural

“…In the overall β-Ni(OH) 2 -decorated nickel foam electrode, the (0001) plane of the hexagonal structure of the hydroxide is parallel to the (111) plane of the nickel cubic structure. This is due to the fact that the (111) plane of the cubic crystal system of Ni shares the same atomic arrangement as the (0001) or (0002) plane in β- Ni(OH) 2 , [62,63] signifying that Ni atoms arrange themselves in equilateral triangles on their respective sites. This arrangement enhances interfacial stability and electron transfer.…”