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Magnetic polarons reach a hundred thousand Bohr magnetons
The ability of light to manipulate fundamental interactions in a medium is central to research
in optomagnetism and applications in electronics. A prospective approach is to create …
in optomagnetism and applications in electronics. A prospective approach is to create …
Direct optical probing of ultrafast spin dynamics in a magnetic semiconductor
We uncovered the spin dynamics involved in the birth and growth of giant spin polarons in a
magnetic semiconductor. For this purpose, we developed a measurement technique which …
magnetic semiconductor. For this purpose, we developed a measurement technique which …
Photoinduced giant magnetic polarons in EuTe
Photoinduced magnetic polarons in EuTe, with a magnetic moment of several hundred Bohr
magnetons, were investigated as a function of pump intensity and temperature by pump …
magnetons, were investigated as a function of pump intensity and temperature by pump …
Ultrafast light switching of ferromagnetism in EuSe
We demonstrate that light resonant with the band gap forces the antiferromagnetic
semiconductor EuSe to enter ferromagnetic alignment in the picosecond timescale. A …
semiconductor EuSe to enter ferromagnetic alignment in the picosecond timescale. A …
Faraday rotation by the undisturbed bulk and by photoinduced giant polarons in EuTe
A quantum mechanical model is developed for the Faraday effect in europium telluride, for
photons of energy within the transparency gap. The model is based on the well known band …
photons of energy within the transparency gap. The model is based on the well known band …
Modeling huge photoinduced spin polarons in intrinsic magnetic semiconductors
In intrinsic magnetic semiconductors, the absorption of a single photon can generate a spin
polaron, whose magnetic moment reaches many thousands of Bohr magnetons. Here we …
polaron, whose magnetic moment reaches many thousands of Bohr magnetons. Here we …
Light-induced polaron magnetization in EuTe at temperatures reaching 150 K
We demonstrate that light creates a highly magnetized region in a magnetic semiconductor
far above its critical temperature. A near-gap photon generates a quasiparticle of nonzero …
far above its critical temperature. A near-gap photon generates a quasiparticle of nonzero …
Luminescence properties of magnetic polarons in EuTe: Theoretical description and experiments in magnetic fields up to 28 T
The recent discovery of a polaron-associated zero phonon line in the band-edge
photoluminescence of high optical quality EuTe crystals opens up the prospect of answering …
photoluminescence of high optical quality EuTe crystals opens up the prospect of answering …
Hypergiant spin polarons photogenerated in ferromagnetic europium chalcogenides
We find that in the ferromagnetic semiconductor EuS, near its Curie temperature, a single
band edge photon generates a spin polaron (SP), whose magnetic moment approaches 20 …
band edge photon generates a spin polaron (SP), whose magnetic moment approaches 20 …
Pushing the Boundary of Covalency in Lanthanoid‐Tellurium Bonds: Insights from the Synthesis, Molecular and Electronic Structures of Low‐Coordinate, Monomeric …
Owing to the strict hard/soft dichotomy between the lanthanoids and tellurium atoms, and the
strong affinity of lanthanoid ions for high coordination numbers, low‐coordinate, monomeric …
strong affinity of lanthanoid ions for high coordination numbers, low‐coordinate, monomeric …