Formation of ordered B structure on W(100)

Stripe‐Like hBN Monolayer Template for Self‐Assembly and Alignment of Pentacene Molecules

“…However, the shape of the B 1s peak clearly reveals an extra component at 188.4 eV, which is attributed to the boride alloy, as it is centered at the characteristic binding energy of similar low-concentration transition metal borides. [47,54] Comparison between normal emission and grazing emission (0°and 70°, respectively) reveals an attenuation of the boride component, [49] which confirms that it is located below the hBN layer, as expected for an alloy forming at the surface of the metal substrate. A complete schematic of the layered interface structure is displayed in Figure 1d.…”

“…It results in the c (2 × 2) diffraction pattern observed by LEED (marked in red in Figure 1c), alongside the (1 × 1) pattern of Ir(100) (marked in purple). This superstructure is identified as an Ir − $$( {\sqrt 2 \ \times \sqrt 2 } ) - \ R45^\circ \ $$− B surface reconstruction emerging from the formation of an iridium boride alloy (Ir 2 B) at the Ir(100) surface, analogous to the W 2 B alloy formed on W(100), [ 47 ] or the Ni 2 C alloy on Ni(100) occurring in the presence of graphene. [ 48 ] Reminiscent of recent reports on alloys formed at the interface between silicene or borophene and distinct noble metal supports, [ 41–43 ] this observation of a complex interface structure upon h BN formation is a reminder of the potential intricacies in 2D materials growth that are often overlooked.…”

“…surface reconstruction emerging from the formation of an iridium boride alloy (Ir 2 B) at the Ir(100) surface, analogous to the W 2 B alloy formed on W(100), [47] or the Ni 2 C alloy on Ni(100) occurring in the presence of graphene. [48] Reminiscent of recent reports on alloys formed at the interface between silicene or borophene and distinct noble metal supports, [41][42][43] this observation of a complex interface structure upon hBN formation is a reminder of the potential intricacies in 2D materials growth that are often overlooked.…”

Structure and Electronic State of Boron Atomic Chains on a Noble Metal (111) Surface

“…Due to the multi-center bonding of boron atoms, abundance of polymorphs has been reported experimentally. Configuration of boron atoms on substrate can be a monolayer (borophene) [9][10][11][12][13][14][15][16][17][18], a two-dimension (2D) boride [19], an embedded one-dimension (1D) wire [20][21][22][23][24] or a zero-dimension (0D) cluster [25,26]. These surface boron materials have accordingly shown varieties of electronic states and some of them are expected to lead to discovery of the intriguing phenomena, such as superconductivity [27][28][29][30][31].…”