SrTiO₃ (Strontium titanate, STO)

Glasses, oxides and dielectrics

3 datasets, together covering 0.3–3.8 µm. Default: Bond 1965: n 0.43–3.8 µm.

Compare datasets

Tick datasets in the list to add them to the plot (up to 12).

Datasets

Bulk

Bond 1965: n 0.43–3.8 µm n 0.43–3.8 µm default

Thin film

Use it in Lightsmith

Load this data in Python, simulate in one more line

pip install lightsmith

import lightsmith as ls

# SrTiO3 (Strontium titanate, STO): Bond 1965: n 0.43–3.8 µm
srtio3 = ls.fetch_refractiveindex("main", "SrTiO3", "Bond", ref="c5c2f188e848453def5970e347399d653df2ffc2")
print(srtio3.range_nm)  # (430, 3800) nm
eps = srtio3.eps([633])  # complex permittivity

Downloads 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_4f5f69bd3872/lightsmith"
srtio3 = ls.Tabulated.model_validate(json.load(urllib.request.urlopen(url)))
print(srtio3.source)  # citation and provenance travel with the data

Any dataset here, as the library's Tabulated material (srtio3/bond-1965).

# ... load srtio3 as above, then:
sim = ls.Simulation(
    particles=[ls.Particle(shape=ls.Sphere(radius_nm=50), material=srtio3)],
    medium_index=1.0,
    wavelengths=ls.WavelengthRange(start_nm=430, stop_nm=1000, num=81),
)
res = ls.solve(sim)  # exact Mie for a sphere
print(res.q_ext)     # extinction efficiency at each wavelength

Same spec runs with DDA, FDTD, BEM or T-matrix: ls.compare(sim, ["mie", "dda"]).

import json, urllib.request
import lightsmith as ls

url = "https://materials.lightsmith.dev/v1/datasets/ds_4f5f69bd3872/lightsmith?model=drude_lorentz"
srtio3_dl = ls.DrudeLorentz.model_validate(json.load(urllib.request.urlopen(url)))

A dispersive Drude–Lorentz model for time-domain solvers.

Materials guide Open a sphere of it in Studio Quick start Ask the community

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 SrTiO3 (Strontium titanate, STO)

Strontium titanate (SrTiO₃) is a crystalline solid that is often transparent or pale yellow. It possesses perovskite structure and has garnered significant attention in the field of materials science and solid-state physics due to its intriguing dielectric, ferroelectric, and optical properties. SrTiO₃ is widely used as a substrate material for growing high-temperature superconductors, magnetic films, and other oxide thin films. Its high refractive index has also made it popular as a diamond simulant in jewelry, although this use has decreased in favor of more modern materials. In addition, it's used in electronics as a high-k dielectric in DRAM capacitors. The compound can be naturally found in a mineral called perovskite, but most commercial SrTiO₃ is synthetically produced.

Other names: Strontium titanate, STO, Strontium titanate

Strontium titanate - Wikipedia

API: /v1/materials/mat_841625fa09e0 · slug srtio3