Zobrazeno 1 - 10
of 794
pro vyhledávání: '"Kowalski, B."'
Autor:
Wadge, A. S., Zberecki, K., Kowalski, B. J., Jastrzebski, D., Tanwar, P. K., Iwanowski, P., Diduszko, R., Moosarikandy, A., Rosmus, M., Olszowska, N., Wisniewski, A.
Topological nodal-line semimetals represent a unique class of materials with intriguing electronic structures and rich of symmetries, hosting electronic states with nontrivial topological properties. Among these, ZrAs$_2$ stands out, characterized by
Externí odkaz:
http://arxiv.org/abs/2403.04434
Autor:
Wadge, A. S., Grabecki, G., Autieri, C., Kowalski, B. J., Iwanowski, P., Cuono, G., Islam, M. F., Canali, C. M., Dybko, K., Hruban, A., Łusakowski, A., Wojciechowski, T., Diduszko, R., Lynnyk, A., Olszowska, N., Rosmus, M., Kołodziej, J., Wiśniewski, A.
Publikováno v:
J. Phys.: Condens. Matter, 34, 2022,125601
We have performed electron transport and ARPES measurements on single crystals of transition metal dipnictide TaAs2 cleaved along the ($\overline{2}$ 0 1) surface which has the lowest cleavage energy. A Fourier transform of the Shubnikov-de Haas osci
Externí odkaz:
http://arxiv.org/abs/2108.04092
Autor:
Grabecki, G., Dąbrowski, A., Iwanowski, P., Hruban, A., Kowalski, B. J., Olszowska, N., Kołodziej, J., Chojnacki, M., Dybko, K., Łusakowski, A., Wojtowicz, T., Wojciechowski, T., Jakieła, R., Wiśniewski, A.
Publikováno v:
Phys. Rev. B 101, 085113 (2020)
The possibility of inducing superconductivity in type-I Weyl semimetal through coupling its surface to a superconductor was investigated. A single crystal of NbP, grown by chemical vapor transport method, was carefully characterized by XRD, EDX, SEM,
Externí odkaz:
http://arxiv.org/abs/1908.07359
Autor:
Polley, C. M., Jovic, V., Su, T. -Y., Saghir, M., Newby Jr., D., Kowalski, B., Jakiela, R., Barcz, A., Guziewicz, M., Balasubramanian, T., Balakrishnan, G., Laverock, J., Smith, K. E.
Publikováno v:
Phys. Rev. B 93, 075132 (2016)
The topological crystalline insulator tin telluride is known to host superconductivity when doped with indium (Sn$_{1-x}$In$_{x}$Te), and for low indium contents ($x=0.04$) it is known that the topological surface states are preserved. Here we presen
Externí odkaz:
http://arxiv.org/abs/1508.03848
Autor:
Wojek, B. M., Berntsen, M. H., Jonsson, V., Szczerbakow, A., Dziawa, P., Kowalski, B. J., Story, T., Tjernberg, O.
Publikováno v:
Nature Communications 6, 8463 (2015)
Since the advent of topological insulators hosting symmetry-protected Dirac surface states, efforts have been made to gap these states in a controllable way. A new route to accomplish this was opened up by the discovery of topological crystalline ins
Externí odkaz:
http://arxiv.org/abs/1505.03414
Autor:
Podgórni, A., Kilanski, L., Dobrowolski, W., Górska, M., Domukhovski, V., Brodowska, B., Reszka, A., Kowalski, B. J., Slynko, V. E., Slynko, E. I.
The purpose of this study was to investigate the magnetotransport properties of the Ge(0.743)Pb(0.183)Mn(0.074)Te mixed crystal. The results of magnetization measurements indicated that the compound is a spin-glass-like diluted magnetic semiconductor
Externí odkaz:
http://arxiv.org/abs/1406.5294
Autor:
Wojek, B. M., Dziawa, P., Kowalski, B. J., Szczerbakow, A., Black-Schaffer, A. M., Berntsen, M. H., Balasubramanian, T., Story, T., Tjernberg, O.
Publikováno v:
Phys. Rev. B 90, 161202 (2014)
The recent discovery of a topological phase transition in IV-VI narrow-gap semiconductors has revitalized the decades-old interest in the bulk band inversion occurring in these materials. Here we systematically study the (001) surface states of Pb{1-
Externí odkaz:
http://arxiv.org/abs/1401.6643
Autor:
Polley, C. M., Dziawa, P., Reszka, A., Szczerbakow, A., Minikayev, R., Domagala, J. Z., Safaei, S., Kacman, P., Buczko, R., Adell, J., Berntsen, M. H., Wojek, B. M., Tjernberg, O., Kowalski, B. J., Story, T., Balasubramanian, T.
Publikováno v:
Phys. Rev. B 89, 075317 (2014)
We present angle resolved photoemission spectroscopy measurements of the surface states on in-situ grown (111) oriented films of Pb$_{1-x}$Sn$_{x}$Se, a three dimensional topological crystalline insulator. We observe surface states with Dirac-like di
Externí odkaz:
http://arxiv.org/abs/1312.3226
Autor:
Wojek, B. M., Buczko, R., Safaei, S., Dziawa, P., Kowalski, B. J., Berntsen, M. H., Balasubramanian, T., Leandersson, M., Szczerbakow, A., Kacman, P., Story, T., Tjernberg, O.
Publikováno v:
Phys. Rev. B 87, 115106 (2013)
We study the nature of (001) surface states in Pb_{0.73}Sn_{0.27}Se in the newly discovered topological-crystalline-insulator (TCI) phase as well as the corresponding topologically trivial state above the band-gap-inversion temperature. Our calculati
Externí odkaz:
http://arxiv.org/abs/1212.1783
Autor:
Podgórni, A., Kilanski, L., Dobrowolski, W., Górska, M., Reszka, A., Domukhovski, V., Kowalski, B. J., Brodowska, B., Anderson, J. R., Butch, N. P., Slynko, V. E., Slynko, E. I.
Publikováno v:
Acta Phys. Pol. A 122, 1012 (2012)
We present the experimental evidence for the presence of spinodal decomposition of the magnetic ions in the Ge/1-x-y/Cr/x/Eu/y/Te samples with chemical composition varying in the range of 0.015 < x < 0.057 and 0.003 < y < 0.042. The ferromagnetic tra
Externí odkaz:
http://arxiv.org/abs/1212.0666