Transition interbande dee trous dans le tellure

Hardy, D.; Rigaux, C.

doi:10.1016/0038-1098(67)90323-7

Cited by 28 publications

(3 citation statements)

References 3 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This conclusion is corroborated also by recent cyclotron resonance studies [lo]. Finally, in the investigation of SdH effect in wide concentration range [ l l ] the validity of dispersion relation for tellurium valence band firstly proposed in [7] was confirmed and the dispersion law parameters were determined. I n the For the interpretation of experimental results on MPR we must find the energy spectrum of holes in magnetic field.…”

Section: Energy Spectrum Of Holes In Tellurium In Magnetic Fieldsupporting

confidence: 77%

“…This conclusion is corroborated also by recent cyclotron resonance studies [lo]. Finally, in the investigation of SdH effect in wide concentration range [ l l ] the validity of dispersion relation for tellurium valence band firstly proposed in [7] was confirmed and the dispersion law parameters were determined. I n the vicinity of point M in k-space the energy dependence on the wave vector takes the form I n equation (4) the hole energy is regarded positive and increases from the valence band edge (located at points k, = f k,, = f 1/(C4p A 2 ) -L2/C in the direction inside the band.…”

Section: Energy Spectrum Of Holes In Tellurium In Magnetic Fieldsupporting

confidence: 72%

See 1 more Smart Citation

Magnetophonon Resonance in Tellurium

Bresler

Mashovets

1970

Physica Status Solidi (b)

View full text Add to dashboard Cite

An investigation was made of the magnetoresistance of tellurium single-crystal samples in magnetic fields up to 400 kOe a t liquid nitrogen temperatures for different relative orientations of magnetic field, sample current, and crystal threefold axis. For the interpretation of the observed magnetophonon resonance oscillations the system of Landau levels for the tellurium valence band is calculated in the quasi-classical approximation taking into account the phenomena related t o the presence of a saddle point in the band energy spectrum (intraband magnetic breakdown). The long-wavelength optical vibrations in the tellurium lattice are discussed. It is suggested that from t.hree optical phonon modes inducing the first-order dipole moments one mode predominates in carrier scattering. The cdculated positions of the niagnetophonon oscillations are in good agreement with the experiment. A n einkristallinen Tellurproben uiurde die Magnetowiderstandsanderung in Magnet

show abstract

Section: Energy Spectrum Of Holes In Tellurium In Magnetic Fieldsupporting

confidence: 77%

“…This conclusion is corroborated also by recent cyclotron resonance studies [lo]. Finally, in the investigation of SdH effect in wide concentration range [ l l ] the validity of dispersion relation for tellurium valence band firstly proposed in [7] was confirmed and the dispersion law parameters were determined. I n the vicinity of point M in k-space the energy dependence on the wave vector takes the form I n equation (4) the hole energy is regarded positive and increases from the valence band edge (located at points k, = f k,, = f 1/(C4p A 2 ) -L2/C in the direction inside the band.…”

Section: Energy Spectrum Of Holes In Tellurium In Magnetic Fieldsupporting

confidence: 72%

Magnetophonon Resonance in Tellurium

Bresler

Mashovets

1970

Physica Status Solidi (b)

View full text Add to dashboard Cite

show abstract

“…1a,b. To the best of our knowledge, the band structure of tellurium has been established before the 1970s by theoretical [20][21][22][23][24][25] and experimental 18,26,27 studies, which identified a gap size of 0.32 eV 18,19 and the valence band maxima (VBM) located slightly off the H-and H'-point (Fig. 1f).…”

mentioning

confidence: 99%

Radial Spin Texture in Elemental Tellurium with Chiral Crystal Structure

et al. 2020

View full text Add to dashboard Cite

The chiral crystal is characterized by a lack of mirror symmetry and an inversion center, resulting in the inequivalent right-and left-handed structures. In the noncentrosymmetric crystal structure, the spin and momentum of electrons are locked in the reciprocal space with the help of the spin-orbit interaction. To reveal the spin textures of chiral crystals, here we investigate the spin and electronic structure in p-type semiconductor elemental tellurium with a chiral crystal structure by using spin-and angle-resolved photoemission spectroscopy. Our data demonstrate that the highest valence band crossing the Fermi level has a spin component parallel to the electron momentum around the BZ corners. Significantly, we have also confirmed that the spin polarization is reversed in the crystal with the opposite chirality. The results indicate that the spin textures of the right-and left-handed chiral crystals are hedgehog-like, leading to unconventional magnetoelectric effects and nonreciprocal phenomena.

show abstract

Die Absorptionskante der Selen–Tellur‐Mischkristallreihe

Sutter

1969

Physica Status Solidi (b)

View full text Add to dashboard Cite

70,BSowohl dieser Verlauf als auch die sehr stmke Konzentrationsabhangigkeit des Bandabstandes fur kleine Tellurgehalte in Selen geht parallel mit der Variation des Bindungswinkels der Atome in der Mischkristallreihe. Der spektrale Verlauf der Absorptionskonstanten in der Kante entspricht der Theorie fur indirekte ubergange.Solid solutions of selenium and tellurium with a composition varying in steps of 10 atyo were prepared by the Bridgman procedure. The edge absorption of these crystals was investigated with light polarized parallel and perpendicular to the c-axis. The band gap varies continuously from pure selenium to pure tellurium with a break at 20% tellurium in selenium. In the range of 20 to 100 atyo tellurium the dependence of the band gap on the tellurium concentration is given by an exponential relation : E, = 1.29 exp -~ ( 7 t B ) e V . This dependence and also the strong variation of the band gap for small tellurium admixtures to selenium go parallel to the variation of the bond angle in the solid solution series. The spectral dependence of the absorption constant a t the edge follows the theory for indirect transitions. Einf iihrung

show abstract

Transition interbande dee trous dans le tellure

Cited by 28 publications

References 3 publications

Magnetophonon Resonance in Tellurium

Magnetophonon Resonance in Tellurium

Radial Spin Texture in Elemental Tellurium with Chiral Crystal Structure

Die Absorptionskante der Selen–Tellur‐Mischkristallreihe

Contact Info

Product

Resources

About