dr inż. Marta Roman
Social media
Contact
- marta.roman@pg.edu.pl
Assistant professor
- Workplace
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Gmach Główny
room 126B open in new tab - Phone
- +48 58 347 14 61
- marta.roman@pg.edu.pl
Publication showcase
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Magnetism and charge density waves in RNiC2(R=Ce,Pr,Nd)
We have compared the magnetic, transport, galvanomagnetic, and specific-heat properties of CeNiC2, PrNiC2, and NdNiC2 to study the interplay between charge density waves (CDW) and magnetism in these compounds. The negative magnetoresistance in NdNiC2 is discussed in terms of the partial destruction of charge density waves and an irreversible phase transition stabilized by the field-induced ferromagnetic transformation is reported....
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Extended phase diagram of RNiC2 family: Linear scaling of the Peierls temperature
Physical properties for the late-lanthanide-based RNiC2 (R = Dy, Ho, Er, and Tm) ternary compounds are reported. All the compounds show antiferromagnetic ground state with the Néel temperature ranging from 3.4 K for HoNiC2 to 8.5 K for ErNiC2. The results of the transport and galvanomagnetic properties confirm a charge density wave state at and above room temperature with transition temperatures TCDW = 284, 335, 366, and 394 K for...
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Charge density wave and large nonsaturating magnetoresistance in YNiC2 and LuNiC2
We report a study of physical properties of two quasi-low-dimensional metals YNiC2 and LuNiC2 including the investigation of transport, magnetotransport, galvanomagnetic, and specific heat properties. In YNiC2 we reveal two subsequent transitions associated with the formation of weakly coupled charge density wave at TCDW=318K and its locking in with the lattice at T1=275K. These characteristic temperatures follow the previously...
Obtained scientific degrees/titles
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2020-07-16
Obtained science degree
dr inż. physical sciences (Natural sciences)
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