Prepatterned substrates are employed to study the electronic properties with a diameter of 25 are bonded for the Pt speak to pads employing In as conducting adhesive. of your exfoliated WTe2 flakes by low-T/high- H magnetotransport measurements. It can be worth noting, that the mechanical exfoliation along with the viscoelastic dry transfer will be the (1 1) cm2 SiO2 /p -Si substrates with a SiO2 thickness of 90 nm are spin carried out in air ambient. The stability with the samples in ambient situations is discussed coated with S1805 optimistic photoresist followed by soft baking at 90 C. A S s Mask in the subsequent section. This is in contrast to what typically reported in literature, exactly where the aligner photolithography method is employed to expose the S1805 coated substrates to an fabrication and transfer with the flakes takes location in vacuum or in inert atmosphere [28,43]. ultraviolet mercury lamp through a window mask. The substrates are created working with The whole process of sample fabrication and like the mechanical exfoliation, the a standard MS-519 photolithography developer and subsequently transferred into a viscoelastic dry transfer with the WTe2 flakes on prepatterned Pt contacts, the Au wire bondsputtering chamber for the deposition of 10 nm thick Pt contacts. The metallic get in touch with pads ing and also the transfer on the samples in to the cryostat for measurements is accomplished in less in van der Pauw 4-probe geometry are then obtained by rinsing away the photoresist with than 30 minutes, thereby making certain minimal oxidation in the flakes. This fabrication protocol warm acetone for 15 seconds in an ultrasonic bath. minimizes the detrimental effects of surface oxidation around the electronic properties on the The exfoliated WTe2 flakes are transferred onto both pristine and prepatterned subWSM-II WTe2 [48,49]. strates making use of an indigeneously created viscoelastic dry transfer system [47]. Gold wires A schematic representation on the semimetallic bulk crystal structure of Td -WTe2 having a diameter of 25 are bonded to the Pt speak to pads using In as 7conducting adhesive. highlighting the a-, b- and c- directions of the space group C2v (Pmn21) distorted It is actually worth noting, that the mechanical exfoliation and the viscoelastic dry transfer are orthorhombic basis, is shown in Figure 1a. Every single unit cell is composed of two W and 4 carried out in air ambient. The stability with the samples in ambient circumstances is discussed Te atoms along with the W-Te bond lengths differ involving 2.7 and 2.eight [40,50]. The bulk WTe2 within the subsequent section. This can be in contrast to what usually reported in literature, exactly where the exhibits a Td stacking order in which the atoms inside the upper layer are rotated by 180 fabrication and transfer from the flakes requires spot in vacuum or in inert atmosphere [28,43]. w.r.t. the atoms in the Diversity Library Solution reduce layer, as sketched in Figure 1a. Inside the Td -WTe2 , the a-axis is the complete process of sample fabrication and including the mechanical exfoliation, the Charybdotoxin supplier populated by the W-chain even though the axis b is orthogonal to it. The c-axis is perpendicular viscoelastic dry transfer in the WTe2 flakes on prepatterned Pt contacts, the Au wire bondto the ab- plane. Two exemplary samples are considered, namely: ing along with the transfer of the samples in to the cryostat for measurements is accomplished in less (i) Sample S1: inside the van der Pauw geometry the excitation current Iac is applied than 30 min, thereby making sure minimal oxidation from the flakes. This fabrication protocol in between the contacts C.