Measurement of the positron work functions of polycrystalline Fe, Mo, Ni, Pt, Ti, and V

Jibaly, M.; Weiss, A. H.; Köymen, A. R.; Mehl, D.; Stiborek, Leon; Lei, Chun

doi:10.1103/physrevb.44.12166

Cited by 39 publications

(9 citation statements)

References 21 publications

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“…The positron affinity can be measured using the slow positron beam techniques. 44,45 The comparison of the theoretical and experimental positron affinities directly tests the validity of the positron potential construction.…”

Section: Gradient Correction For the Electron-positron Correlation Pomentioning

confidence: 99%

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Calculation of positron states and annihilation in solids: A density-gradient-correction scheme

et al. 1996

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The generalized gradient correction method for positron-electron correlation effects in solids ͓B. Barbiellini et al., Phys. Rev. B 51, 7341 ͑1995͔͒ is applied in several test cases. The positron lifetime, energetics, and momentum distribution of the annihilating electron-positron pairs are considered. The comparison with experiments shows systematic improvement in the predictive power of the theory compared to the local-density approximation results for positron states and annihilation characteristics. ͓S0163-1829͑96͒03824-6͔

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Section: Gradient Correction For the Electron-positron Correlation Pomentioning

confidence: 99%

“…The positron affinities calculated within the LDA and GGA models are compared with those measured by the reemitted positron spectroscopy 44,45 in Fig. 3.…”

Section: A Positron Lifetimes and Affinities In Perfect Crystal Lattmentioning

confidence: 99%

Calculation of positron states and annihilation in solids: A density-gradient-correction scheme

et al. 1996

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“…The last column gives experimental values taken from Refs. [32][33][34]. The exceptions are C and Si (see Ref.…”

mentioning

confidence: 99%

Proposed Parameter-Free Model for Interpreting the Measured Positron Annihilation Spectra of Materials Using a Generalized Gradient Approximation

Barbiellini

Kuriplach

2015

Phys. Rev. Lett.

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Positron annihilation spectroscopy is often used to analyze the local electronic structure of materials of technological interest. Reliable theoretical tools are crucial to interpret the measured spectra. Here, we propose a parameter-free gradient correction scheme for a local-density approximation obtained from high quality quantum Monte Carlo data. The results of our calculations compare favorably with positron affinity and lifetime measurements opening new avenues for highly precise and advanced positron characterization of materials.

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“…Positron moderation in annealed platinum leads to emission of mono-energetic positrons due to platinum's negative positron work function [18,19]. The kinetic energy of the positron beam can be varied in an energy range between 15 eV and 2 keV by biasing the platinum foils of the positron source.…”

Section: Nepomucmentioning

confidence: 99%

Surface investigation of Si(100), Cu, Cu on Si(100), and Au on Cu with positron annihilation induced Auger-electron spectroscopy

2007

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Measurement of the positron work functions of polycrystalline Fe, Mo, Ni, Pt, Ti, and V

Cited by 39 publications

References 21 publications

Calculation of positron states and annihilation in solids: A density-gradient-correction scheme

Calculation of positron states and annihilation in solids: A density-gradient-correction scheme

Proposed Parameter-Free Model for Interpreting the Measured Positron Annihilation Spectra of Materials Using a Generalized Gradient Approximation

Surface investigation of Si(100), Cu, Cu on Si(100), and Au on Cu with positron annihilation induced Auger-electron spectroscopy

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