Autor: Flachbart, K. - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Magnetic Phase Diagram of $TmB_{4}$ under High Pressure
Autorzy:: Gabáni, S.
Pristáš, G.
Takáčová, I.
Flachbart, K.
Filipov, V.
Shitsevalova, N.
Siemensmeyer, K.
Powiązania:: https://bibliotekanauki.pl/articles/1371562.pdf
Data publikacji:: 2014-07
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 75.30.Kz
75.25.+z
74.25.F
62.50.-p
Opis:: $TmB_{4}$ is a Shastry-Sutherland frustrated system which exhibits very complex magnetic properties. In this contribution the phase diagram of magnetic field vs. temperature of $TmB_{4}$ under hydrostatic pressure up to 26.5 kbar is investigated using sensitive ac-resistance measurements. Temperature and magnetic field dependences of resistance at various pressures were carried out in a piston cylinder pressure cell between 1.7 and 14 K and in magnetic fields up to 6 T. The obtained results exhibit shifts of ordering temperatures $T_{N}$ as well as shifts of boundaries between different magnetic phases. The observed pressure dependences of $T_{N}$ can be described by the relation d $lnT_{N}$/dp=+(0.16÷0.18) %/kbar. The effect of pressure on various interactions between magnetic ions in this compound is discussed.
Źródło:: Acta Physica Polonica A; 2014, 126, 1; 356-357
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 2.

Tytuł:: $\text{}^{11}$B-NMR Study of $SmB_6$ under Pressure
Autorzy:: Pristáš, G.
Mito, T.
Kohara, T.
Gabáni, S.
Reiffers, M.
Flachbart, K.
Takeshita, N.
Shitsevalova, N.
Powiązania:: https://bibliotekanauki.pl/articles/1534330.pdf
Data publikacji:: 2010-11
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 76.60.-k
62.50.-p
71.28.+d
Opis:: We present first experimental results of $\text{}^{11}$B-NMR of SmB_6 under applied pressure. From measurement of nuclear spin-lattice relaxation time $(T_1)$ we find that with applied pressure the value of activation gap $E_{g}$ is decreasing. This decrease is larger than in case of other experimental techniques. We suppose that the enhancement of $1//T_1$ in temperature range 20-100 K with applied pressure reflects not only a suppression of hybridization gap, but also changes in spin correlations.
Źródło:: Acta Physica Polonica A; 2010, 118, 5; 895-896
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 3.

Tytuł:: Influence of Pressure on Superconductivity in $YB_{6}$
Autorzy:: Gabáni, S.
Pristáš, G.
Takáčová, I.
Flachbart, K.
Gažo, E.
Mori, T.
Braithwaite, D.
Samuely, P.
Powiązania:: https://bibliotekanauki.pl/articles/1371520.pdf
Data publikacji:: 2014-07
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 74.70.Ad
74.25.F-
62.50.-p
Opis:: Magnetoresistivity measurements on a superconducting system of $YB_{6}$ ($T_c$ ≈7.5 K) down to 60 mK at hydrostatic pressures up to 47 kbar are presented. The superconducting transition temperature, as well as the third critical field $H_{c3}$ reveal a linear decrease with increasing pressure with slopes of d ln $H_{c3}$/dp=-1.1 %/kbar, and d ln $T_c$/dp=-0.59 %/kbar. From the latter a critical pressure, $p_c$ ≈ 170 kbar, at which $T_c$ vanishes, is determined.
Źródło:: Acta Physica Polonica A; 2014, 126, 1; 340-341
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

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