Magnetoacoustic Evidence for the Existence of the<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>L</mml:mi></mml:math>-Centered Pocket of Fermi Surface in Palladium

Brown, Christopher; Kalejs, J.P.; Manchester, F. D.; Perz, J. M.

doi:10.1103/physrevb.6.4458

Cited by 19 publications

(5 citation statements)

References 10 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Previous calculations also predicted the existence of small L-pockets, which were seen if spin-orbit coupling was taken into account [64,75]. These L-pockets were later confirmed by magnetoacoustic measurements [77].…”

Section: Fermi Surfacementioning

confidence: 54%

Electronic structure of palladium in the presence of many-body effects

et al. 2016

View full text Add to dashboard Cite

Including on-site electronic interactions described by the multi-orbital Hubbard model we study the correlation effects in the electronic structure of bulk palladium. We use a combined density functional and dynamical mean field theory, LDA+DMFT, based on the fluctuation exchange approximation. The agreement between the experimentally determined and the theoretical lattice constant and bulk modulus is improved when correlation effects are included. It is found that correlations modify the Fermi surface around the neck at the L-point while the Fermi surface tube structures show little correlation effects. At the same time we discuss the possibility of satellite formation in the high energy binding region. Spectral functions obtained within the LDA+DMFT and GW methods are compared to discuss non-local correlation effects. For relatively weak interaction strength of the local Coulomb and exchange parameters spectra from LDA+DMFT shows no major difference in comparison to GW .

show abstract

Section: Fermi Surfacementioning

confidence: 54%

Electronic structure of palladium in the presence of many-body effects

et al. 2016

View full text Add to dashboard Cite

show abstract

“…We systematically compare Compton scattering and 2D-ACAR by performing measurements on the same disk-shaped Pd single crystal (∅ = 10 mm, 1 mm thick, surface normal [011]), serving as a model system with a well-characterized electronic structure [37,38]. During the 1970s, several theoretical and experimental studies focused on the electronic structure of Pd to determine the main features of the Fermi surface.…”

Section: Introductionmentioning

confidence: 99%

Momentum density spectroscopy of Pd: Comparison of 2D-ACAR and Compton scattering using a 1D-to-2D reconstruction method

Ketels

Billington²,

Dugdale³

et al. 2021

Phys. Rev. B

View full text Add to dashboard Cite

Two-dimensional (2D) angular correlation of annihilation radiation and Compton scattering are both powerful techniques to investigate the bulk electronic structure of crystalline solids through the momentum density of the electrons. Here we apply both methods to a single crystal of Pd to study the electron momentum density and the occupancy in the first Brillouin zone and to point out the complementary nature of the two techniques. To retrieve the 2D spectra from one-dimensional Compton profiles, a direct inversion method is implemented and benchmarked against the well-established Cormack's method. The comparison of experimental spectra with first-principles density functional theory calculations of the electron momentum density and the two photon momentum density clearly reveals the importance of positron probing effects on the determination of the electronic structure. While the calculations are in good agreement with the experimental data, our results highlight some significant discrepancies.

show abstract

“…This cyclotron mass is higher than that of any other closed orbit in tin; this is unusual because the orbit is one of the smaller ones. A similar feature of one set of orbits in palladium prevented their being seen in initial de Haasvan Alphen experiments; oscillations from them were first observed in ultrasonic attenuation (29), just as for E,' in tin. While attenuation are enhanced by a factor (29) (25); we have estimated their amplitudes on the basis of our calculated orbit parameters and find that they are below the observed noise level.…”

Section: Fourth Zone Neck Orbitmentioning

confidence: 87%

An orthogonalized plane wave pseudopotential model calculation of the dilational strain dependence of the Fermi surface of white tin

Mak¹,

Perz²

1980

Can. J. Phys.

Self Cite

View full text Add to dashboard Cite

The response of the Fermi surface of white tin to uniaxial dilational strain has been determined from an orthogonalized plane wave (OPW) pseudopotential model. The model parameters have been chosen to give a best fit to experimental data on the Fermi surface in the unstrained metal. The strain derivatives of a total of 17 extremal cross sections, normal to the symmetry directions [001], [100], and [110] in the tetragonal crystal, have been calculated. The results for large orbits are found to be generally in good agreement with experimental data; the agreement is only qualitative for orbits on small pieces of the Fermi surface. Properties of the minimal orbit around the re-entrant neck in zone four have been determined; these explain why de Haas – van Alphen oscillations from this orbit have until recently eluded observation.

show abstract

Magnetoacoustic Evidence for the Existence of theL-Centered Pocket of Fermi Surface in Palladium

Cited by 19 publications

References 10 publications

Electronic structure of palladium in the presence of many-body effects

Electronic structure of palladium in the presence of many-body effects

Momentum density spectroscopy of Pd: Comparison of 2D-ACAR and Compton scattering using a 1D-to-2D reconstruction method

An orthogonalized plane wave pseudopotential model calculation of the dilational strain dependence of the Fermi surface of white tin

Contact Info

Product

Resources

About