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Electron-quasiparticle interaction in DyNi2B2C measured by point-contact spectroscopy
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UNSPECIFIED (2000) Electron-quasiparticle interaction in DyNi2B2C measured by point-contact spectroscopy. PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS, 334 (3-4). pp. 152-162.
Full text not available from this repository, contact author.Abstract
The electron-quasiparticle interaction (EQI) spectral function has been measured for DyNi2B2C in the normal state at low temperatures by means of point-contact spectroscopy (PCS). A low-frequency peak is found around eV similar to 5 meV. It becomes measurable at T-m* similar or equal to 15 K and grows in intensity with constant width as the temperature is lowered. We argue that this peak arises from the strong interaction of conduction electron with coupled crystal-electric-field-phonon excitations whose branches cross at low energy. The comparison with PC spectra for HoNi2B2C suggests that a similar peak also exists for this compound. The magnitude of the point-contact EQI parameter lambda(PC) for DyNi2B2C is estimated. (C) 2000 Elsevier Science B.V. All rights reserved.
| Item Type: | Journal Article | ||||
|---|---|---|---|---|---|
| Subjects: | Q Science > QC Physics | ||||
| Journal or Publication Title: | PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS | ||||
| Publisher: | ELSEVIER SCIENCE BV | ||||
| ISSN: | 0921-4534 | ||||
| Official Date: | 15 June 2000 | ||||
| Dates: |
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| Volume: | 334 | ||||
| Number: | 3-4 | ||||
| Number of Pages: | 11 | ||||
| Page Range: | pp. 152-162 | ||||
| Publication Status: | Published |
Data sourced from Thomson Reuters' Web of Knowledge
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