WTe2 (Tungsten ditelluride)
2D materials anisotropic
3 datasets, together covering 0.3–1.69 µm. Default: Munkhbat et al. 2022: multilayer flakes; n(α),k(α) 0.30–1.69 µm.
Compare datasets
Tick datasets in the list to add them to the plot (up to 12).
Datasets
Multilayer flakes
Use it in Lightsmith
Load this data in Python, simulate in one more line
pip install lightsmith
import lightsmith as ls
# WTe2 (Tungsten ditelluride): Munkhbat et al. 2022: multilayer flakes; n(α),k(α) 0.30–1.69 µm
wte2 = ls.fetch_refractiveindex("main", "WTe2", "Munkhbat-α", ref="c5c2f188e848453def5970e347399d653df2ffc2")
print(wte2.range_nm) # (300, 1690) nm
eps = wte2.eps([633]) # complex permittivityDownloads the original record once (pinned to the imported snapshot) and caches it.
import json, urllib.request
import lightsmith as ls
url = "https://materials.lightsmith.dev/v1/datasets/ds_8a335c4e32b0/lightsmith"
wte2 = ls.Tabulated.model_validate(json.load(urllib.request.urlopen(url)))
print(wte2.source) # citation and provenance travel with the dataAny dataset here, as the library's Tabulated material (wte2/munkhbat-2022).
# ... load wte2 as above, then:
sim = ls.Simulation(
particles=[ls.Particle(shape=ls.Sphere(radius_nm=50), material=wte2)],
medium_index=1.0,
wavelengths=ls.WavelengthRange(start_nm=400, stop_nm=1000, num=81),
)
res = ls.solve(sim) # exact Mie for a sphere
print(res.q_ext) # extinction efficiency at each wavelengthSame spec runs with DDA, FDTD, BEM or T-matrix: ls.compare(sim, ["mie", "dda"]).
Lightsmith is open source (MIT): Mie, T-matrix, BEM, DDA, FDTD, RCWA, TMM, mode solvers and inverse design behind one spec, on CPU or GPU. GitHub.
About WTe2 (Tungsten ditelluride)
Tungsten ditelluride (WTe2) is a member of the transition metal dichalcogenides (TMDs) group, possessing unique electronic properties that set it apart from other TMDs. Characterized by its layered structure, the layers are held together by weak van der Waals forces, making it possible to exfoliate into ultra-thin layers. WTe2 has gained significant attention due to its extremely large magnetoresistance and the discovery of type-II Weyl semimetal state in its structure. The combination of these unusual properties has spurred interest in its potential for advanced electronic, spintronic, and quantum devices. Moreover, its inherent flexibility in thin layers can be advantageous for future wearable or flexible device applications.
Other names: Tungsten ditelluride, Tungsten(IV) telluride
API: /v1/materials/mat_dd167d3ce622 · slug wte2