14 citations · 60 across the 10 of their papers we have counts for
10 papers
Effect of pressure on electric transport properties of carbon-doped EuB6
M. Batkova, I. Batko, E. Bauer +3
We report about influence of external pressure on electrical resistivity of EuB5.99C0.01, the compound believed to be intrinsically inhomogeneous due to fluctuation of carbon conte…
Electrical properties of SmB thin films prepared by pulsed laser deposition from a stoichiometric SmB target
Marianna Batkova, Ivan Batko, Feliks Stobiecki +4
Possible existence of topologically protected surface in samarium hexaboride has created a strong need for investigations allowing to distinguish between properties coming from the…
Evidence formagnetic phase separation in colossal magnetoresistance compound EuB5.99C0.01
Ivan Batko, Marianna Batkova, Vinh Hung Tran +2
EuB5.99C0.01 is a low-carrier density ferromagnet that is believed to be intrinsically inhomogeneous due to fluctuations of carbon content. In accordance with our previous studies,…
SmB6: A material with anomalous energy distribution function of charge carriers?
I. Batko, M. Batkova
We argue that because of valence-fluctuation caused dynamical changes (fluctuations) of impurity energies in an impurity band of valence fluctuating semiconductors both occupied an…
Low temperature resistivity studies of SmB6: Observation of twodimensional variable-range hopping conductivity
Marianna Batkova, Ivan Batko, Slavomir Gabani +3
We studied electrical resistance of a single-crystalline SmB6 sample with a focus on the region of the "low-temperature resistivity plateau". Our observations did not show any true…
Effect of valence fluctuations on the ground state properties of SmB6
M. Batkova, I. Batko
We argue that because of valence-fluctuation caused dynamical changes (fluctuations) of impurity energies in the impurity band of SmB6, energies of electrons occupying impurity sit…
Observation of drift and diffusion processes in Ti/TiOx/Ti memristive devices prepared by local anodic oxidation
I. Batko, M. Batkova
We demonstrate that memristive devices can be fabricated by tip-induced oxidation of thin metallic films using atomic force microscope. Electrical measurements of such prepared Ti/…
SmB: Topological insulator or semiconductor with valence-fluctuation induced hopping transport?
I. Batko, M. Batkova
We advert to the fact that presence of valence fluctuations (VFs) in semiconductors with in-gap impurity bands unconditionally leads to dynamical changes (fluctuations) of energies…
Anomalous magnetoresistance of EuBC: Enhancement of magnetoresistance in systems with magnetic polarons
M. Batkova, I. Batko, K. Flachbart +8
We present results of measurements of electrical, magnetic and thermal properties of EuBC. The observed anomalously large negative magnetoresistance as above, so…
Calorimetric tunneling study of heat generation in metal-vacuum-metal tunnel junction
I. Batko, M. Batkova
We have proposed novel calorimetric tunneling (CT) experiment allowing exact determination of heat generation (or heat sinking) in individual tunnel junction (TJ) electrodes which…