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Proceedings Article

Investigation of the elemental composition of lanthanum-cerium hexaboride crystals

[+] Author Affiliations
Georgi Badalyan, Armen Kuzanyan, Vahagn Petrosyan, Vazgen Kuzanyan

Institute for Physical Research (Armenia)

Armen Gulian

Physics Art Frontiers (USA)

Proc. SPIE 7998, International Conference on Laser Physics 2010, 79980E (March 04, 2011); doi:10.1117/12.890882
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From Conference Volume 7998

  • International Conference on Laser Physics 2010
  • Aram V. Papoyan
  • Ashtarak, Armenia | October 12, 2010

abstract

Crystals of solid solutions of lanthanum-cerium hexaborides (La1-xCex)B6 possess unique thermoelectric properties in the temperature range of 0.3-9 K and they can be used in thermoelectric single-photon detectors as a sensor. One can observe a wide spread in thermoelectric measurement values reported in the literature, which is because of different qualities of studied crystals. The greatest influence on both the Seebeck coefficient and electrical resistivity of samples is exercised by the presence of uncontrolled impurities in crystals and the deviation from stoichiometry. In this work we have studied just the aforementioned parameters of the crystals obtained by three different methods.

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Citation

Georgi Badalyan ; Armen Kuzanyan ; Vahagn Petrosyan ; Vazgen Kuzanyan and Armen Gulian
"Investigation of the elemental composition of lanthanum-cerium hexaboride crystals", Proc. SPIE 7998, International Conference on Laser Physics 2010, 79980E (March 04, 2011); doi:10.1117/12.890882; http://dx.doi.org/10.1117/12.890882


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