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  1. 1 Acta Physica Polonica A

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  1. 1 2014

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  1. 1 Batko I.

  2. 1 Batkova M.

  3. 1 Lofaj F.

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Electrical Resistivity of CrN Thin Films

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Batko I., Batkova M., Lofaj F.
Acta Physica Polonica A
|
2014
|
vol. 126
|
issue 1
415-416
EN
The work is focused on the measurements of electrical resistivity of CrN thin films deposited on glass substrates by DC-magnetron sputtering in Ar+N_{2} atmosphere. The studied samples reveal semiconducting behaviour of electrical resistivity in the whole range of tested preparation parameters (such as pressure and composition of Ar-N_{2} mixture), whereas the electrical transport regime is strongly influenced by parameters of preparation. Numerical analysis of the experimental data showed that electrical transport can be adequately described in terms of variable-range hopping conduction in selected temperature intervals. Moreover, S-shaped anomaly in ρ(T) dependence, being expected to be a consequence of phase transition to a low-temperature antiferromagnetic orthorhombic phase, has been observed for sample with the highest concentration of N_{2} in the temperature interval of 220-250 K. The obtained results indicate that technology processes typically used for preparation of CrN coatings represent a promising potential to develop also high sensitivity cryogenic sensors for high magnetic fields applications.
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