BiFeO3 (Bismuth ferrite, BFO)

Glasses, oxides and dielectrics

1 dataset, together covering 0.1971–1.669 µm. Default: Kumar et al. 2008: n 0.197–1.67 µm, k 0.197–0.576 µm.

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Datasets

Kumar et al. 2008: n 0.197–1.67 µm, k 0.197–0.576 µm n,k 0.1971–1.669 µm default

Use it in Lightsmith

Load this data in Python, simulate in one more line

pip install lightsmith

import lightsmith as ls

# BiFeO3 (Bismuth ferrite, BFO): Kumar et al. 2008: n 0.197–1.67 µm, k 0.197–0.576 µm
bifeo3 = ls.fetch_refractiveindex("main", "BiFeO3", "Kumar", ref="c5c2f188e848453def5970e347399d653df2ffc2")
print(bifeo3.range_nm)  # (197.06, 1669.3) nm
eps = bifeo3.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_84955c6aac45/lightsmith"
bifeo3 = ls.Tabulated.model_validate(json.load(urllib.request.urlopen(url)))
print(bifeo3.source)  # citation and provenance travel with the data

Any dataset here, as the library's Tabulated material (bifeo3/kumar-2008).

# ... load bifeo3 as above, then:
sim = ls.Simulation(
    particles=[ls.Particle(shape=ls.Sphere(radius_nm=50), material=bifeo3)],
    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 wavelength

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

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 BiFeO3 (Bismuth ferrite, BFO)

BiFeO₃, commonly known as bismuth ferrite (BFO), is a multiferroic material that exhibits both ferroelectric and antiferromagnetic properties. In the realm of optics and optoelectronics, BFO has garnered interest for its potential in creating multifunctional devices, leveraging its coupled electric and magnetic order parameters. It shows promise for applications in photovoltaics, data storage, and spintronic devices due to its strong magnetoelectric coupling. The material possesses a distorted perovskite structure, which gives rise to its unique properties. Various methods, such as sol-gel, chemical vapor deposition (CVD), and pulsed laser deposition (PLD), can be used to synthesize high-quality BFO films. The material has also been doped with elements like lanthanum and titanium to enhance its functional properties or to adjust its bandgap for specific applications. One of the challenges with BFO is its relatively low Curie temperature and weak ferromagnetism at room temperature. Nonetheless, the ability to control both electric and magnetic properties by external fields makes BFO a subject of intensive research for future optoelectronic devices and sensors.

Other names: Bismuth ferrite, BFO, Bismuth ferrite, BFO

Bismuth ferrite - Wikipedia

API: /v1/materials/mat_4466b9bd183a · slug bifeo3