<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:mmultiscripts><mml:mrow><mml:mi mathvariant="normal">Zn</mml:mi></mml:mrow><mml:mprescripts /><mml:mrow /><mml:mrow><mml:mn>67</mml:mn></mml:mrow><mml:mrow /><mml:mrow /></mml:mmultiscripts></mml:mrow></mml:math>Mössbauer study of zinc metal at high pressure

Potzel, W.; Adlassnig, Wolfram; Moser, J.; Schafer, C. F.; Steiner, Markus J.; Kalvius, Georg Michael

doi:10.1103/physrevb.39.8236

Cited by 26 publications

(24 citation statements)

References 19 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The hexagonal close-packed (hcp) structures of nontransition metallic Zn and Cd have been extensively studied for many years [1][2][3][4], since the axial c͞a ratios, 1.856 for Zn, and 1.89 for Cd, are much larger than the ideal ratio, c͞a p 8͞3 1.633. The unusually large c͞a ratio makes many physical properties of Zn and Cd highly anisotropic.…”

mentioning

confidence: 99%

Phonon Anomaly in High-Pressure Zn

Tse

2000

Phys. Rev. Lett.

View full text Add to dashboard Cite

The equation of states and phonon dispersions of hexagonal zinc have been calculated by the plane-wave pseudopotential method within the generalized-gradient approximation. Weak discontinuities are found in the pressure-volume relation as well as the c/a-volume curve. Phonon dispersions of Zn under pressure have been obtained with a direct method and the results are consistent with the neutron scattering data. At V/V0 approximately 0.88, the calculated frequencies of the acoustic phonons near the zone center softened substantially as a result of an electronic topological transition. The theoretical result is consistent with the observed anomaly in the Lam-Mossbauer factor at low temperature.

show abstract

mentioning

confidence: 99%

Phonon Anomaly in High-Pressure Zn

Tse

2000

Phys. Rev. Lett.

View full text Add to dashboard Cite

show abstract

“…The behavior of zinc and cadmium at reduced volume has attracted considerable interest over the last three decades [1][2][3][4][5][6][7][8]. These metals crystallize in the hcp structure with a nonideal c͞a ratio which strongly decreases under pressure because of the pronounced anisotropy of their linear compressibilities.…”

mentioning

confidence: 99%

Is There an Electronic Topological Transition in Zinc under High Pressure?

1998

View full text Add to dashboard Cite

An electronic topological transition (ET T) in Zn was recently deduced from an anomaly in the Lamb-Mössbauer factor f at 6.6 GPa [Potzel et al., Phys. Rev. Lett. 74, 1139(1995]. We show by inelastic neutron scattering up to 9.4 GPa that the pressure dependence of the low energy acoustic phonon modes S 4 , S 3 , and T 4 is completely regular without any singularity over the entire pressure range. No phonon softening was found beyond 6 GPa, in contrast to the Mössbauer studies. Lattice dynamical calculations demonstrate that, in general, the strong decrease of f cannot be due to the q ϳ 0 phonon modes sensitive to the occurrence of an ET T. [S0031-9007(98)

show abstract

“…Contradictory results can also be found among the studies aimed to detect an anomaly in the lattice dynamics following the ETT. An anomalous high pressure behavior of the acoustic phonon frequencies is supported by both Mössbauer studies [12][13][14] and an inelastic neutron scattering ͑INS͒ study, 15 though the two results are in contrast as a phonon softening and hardening were found by the Mössbauer and INS studies, respectively. On the other hand, Klotz et al 16 did not report any anomaly in a following INS work.…”

Section: Introductionmentioning

confidence: 86%

Electronic topological transition in zinc under pressure: An x-ray absorption spectroscopy study

et al. 2007

View full text Add to dashboard Cite

Zinc metal has been studied at high pressure using x-ray absorption spectroscopy. In order to investigate the role of the different degrees of hydrostaticity on the occurrence of structural anomalies following the electronic topological transition, two pressure transmitting media have been used. Results show that the electronic topological transition, if it exists, does not induce an anomaly in the local environment of compressed Zn as a function of hydrostatic pressure and any anomaly must be related to a loss of hydrostaticity of the pressure transmitting medium. The near-edge structures of the spectra, sensitive to variations in the electronic density of states above the Fermi level, do not show any evidence of electronic transition whatever pressure transmitting medium is used.

show abstract

Zn67Mössbauer study of zinc metal at high pressure

Cited by 26 publications

References 19 publications

Phonon Anomaly in High-Pressure Zn

Phonon Anomaly in High-Pressure Zn

Is There an Electronic Topological Transition in Zinc under High Pressure?

Electronic topological transition in zinc under pressure: An x-ray absorption spectroscopy study

Contact Info

Product

Resources

About