Magnetospatial dispersion effect in magnetic semiconductors<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msub><mml:mrow><mml:mi mathvariant="normal">Cd</mml:mi></mml:mrow><mml:mrow><mml:mn>1</mml:mn><mml:mi>−</mml:mi><mml:mi>x</mml:mi></mml:mrow></mml:msub></mml:mrow><mml:mrow><mml:msub><mml:mrow><mml:mi mathvariant="normal">Mn</mml:mi></mml:mrow><mml:mrow><mml:mi>x</mml:mi></mml:mrow></mml:msub></mml:mrow><mml:mi mathvariant="normal">Te</mml:mi></mml:math>

Кричевцов, Б. Б.; Pisarev, R. V.; Rzhevsky, A. A.; Гриднев, В. Н.; Weber, Helmut

doi:10.1103/physrevb.57.14611

Cited by 28 publications

(23 citation statements)

References 7 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…9,10 Nonreciprocal birefringence was also demonstrated in the diluted magnetic semiconductor (Cd,Mn)Te. 11 Since it involves both light wavevector and external magnetic field, the magneto-spatial dispersion is, as a rule, much weaker than the Faraday rotation, and hence, to the best of our knowledge, all previous studies of non-reciprocal birefringence were done in Voigt geometry, where the Faraday effect is negligible, while the Voigt effect is quadratic in magnetic field and must be taken into account.…”

Section: Introductionmentioning

confidence: 98%

Magnetic field induced nutation of exciton-polariton polarization in (Cd,Zn)Te crystals

et al. 2013

View full text Add to dashboard Cite

We study the polarization dynamics of exciton-polaritons propagating in sub-mm thick (Cd,Zn)Te bulk crystals using polarimetric time-of-flight techniques. The application of a magnetic field in Faraday geometry leads to synchronous temporal oscillations of all Stokes parameters of an initially linearly or circularly polarized, spectrally broad optical pulse of 150 fs duration propagating through the crystal. Strong dispersion for photon energies close to the exciton resonance leads to stretching of the optical pulse to a duration of 200−300 ps and enhancement of magneto-optical effects such as the Faraday rotation and the non-reciprocal birefringence. The oscillation frequency of the excitonpolariton polarization increases with magnetic field B, reaching 10 GHz at B ∼ 5 T. Surprisingly, the relative contributions of Faraday rotation and non-reciprocal birefringence undergo strong changes with photon energy, which is attributed to a non-trivial spectral dependence of Faraday rotation in the vicinity of the exciton resonance. This leads to polarization nutation of the transmitted optical pulse in the time domain. The results are well explained by a model that accounts for Faraday rotation and magneto-spatial dispersion in zinc-blende crystals. We evaluate the exciton g-factor |gexc| = 0.2 and the magneto-spatial constant V = 5 × 10 −12 eVcmT −1 .

show abstract

Section: Introductionmentioning

confidence: 98%

Magnetic field induced nutation of exciton-polariton polarization in (Cd,Zn)Te crystals

et al. 2013

View full text Add to dashboard Cite

show abstract

“…Note that the intensity of light diffracted by a planar chiral structure does not change with a reversal of the propagation direction, in accordance with the reciprocity law. The non-reciprocal intensity effects can appear only in the presence of a magnetic field [18][19][20] or in magnetic systems [21][22][23][24][25] . Such effects have been observed recently in a two-dimensional lattice of magnetic vortices 26 .…”

Section: Introductionmentioning

confidence: 99%

Nonreciprocal light diffraction by a vortex magnetic particle of spherical shape

Karashtin

2013

Phys. Rev. B

View full text Add to dashboard Cite

We report a theoretical study of light diffraction by a spherical magnetic particle with a vortex magnetization distribution. It is shown that the intensity of the diffracted light involves a nonreciprocal contribution. This contribution depends on the vorticity of particle magnetization. It appears due to the excitation of an electric quadrupole, magnetic dipole and the addition to the electric dipole moment in the particle, that depend on the particle magnetization vorticity. The estimation of the non-reciprocal contrbution for a cobalt particle and two linear polarizations of the incident light fits the data of recent experimental studies in the lattice of triangle magnetic particles by an order of magnitude.

show abstract

“…The wave vector was in all measurements along [1 I 0]. Further details of the experimental method and the procedure to separate CME and NB and to suppress the influence of Faraday effects are described in [ 6].…”

mentioning

confidence: 99%

Reciprocal and Non-Reciprocal Linear Magnetic Birefringence in Magnetic Semiconductor γ-Dy2S3

Кричевцов

Weber

2004

Magnetoelectric Interaction Phenomena in Crystals

Self Cite

View full text Add to dashboard Cite

In cubic magnetic semiconductor y-Dy 2 S 3 the anisotropy and dispersion of Cotton-Mouton effect (CME) and non-reciprocal linear birefringence (NB) have been studied. The anisotropy of NB at photon energies E <2 e V corresponds to manifestation of second-order magneto-electric susceptibility in optical region. The dispersion of NB in y-Dy 2 S 3 is of the same type that is known for crystals of Cd 1 _xMnxTe family. This indicates the impact of inversion asymmetry on the conduction band. The anisotropy of CME in transparent region and in the region oflocal electronic transition 6 H 1512 -+ 6F 312 shows the existence of strong axial crystal field in positions of rare-earth ion.Rare-earth (RE) sesquisulphides (point symmetry group Td) y-RE 2 S 3 are non-centrosymmetric magnetic semiconductors with band gap energies Eg=2.5 eV to 3 eV. The dispersion of magneto-optical effects (MO) such as the Faradayeffect (FE) and the polar Kerr effect (MOKE) has been studied in References [1,2,3,4]. It shows that electronic transitions which are responsible for MO properties in the transparent region are centered at energies which are remarkably larger than Eg. It evidences that, in contrast to diamagnetic semiconductors or magnetic semiconductors containing 3d-ions, the interband optical transitions do not play an important role for MO properties of rare-earth sesquisulfides [3,4]. The MO effects in y-RE 2 S 3 are assumed to arise from transitions between ground state of the RE3+ ions (configuration 4fN) to special excited

show abstract

Magnetospatial dispersion effect in magnetic semiconductorsCd1−xMnxTe

Cited by 28 publications

References 7 publications

Magnetic field induced nutation of exciton-polariton polarization in (Cd,Zn)Te crystals

Magnetic field induced nutation of exciton-polariton polarization in (Cd,Zn)Te crystals

Nonreciprocal light diffraction by a vortex magnetic particle of spherical shape

Reciprocal and Non-Reciprocal Linear Magnetic Birefringence in Magnetic Semiconductor γ-Dy2S3

Contact Info

Product

Resources

About