Наукова електронна бібліотека
періодичних видань НАН України
періодичних видань НАН України
Magnetic and resonance properties of the two-dimensional S = 1 compound Ni₅(TeO₃)₄Cl₂ with frustrated geometry
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Magnetic and resonance properties of the two-dimensional S = 1 compound Ni₅(TeO₃)₄Cl₂ with frustrated geometry
Тема:
Низкотемпеpатуpный магнетизм
Інший ID:
PACS: 76.50.+g;75.50.Ee
Посилання:
Magnetic and resonance properties
of the two-dimensional S = 1 compound Ni₅(TeO₃)₄Cl₂
with frustrated geometry / S.L. Gnatchenko, M.I. Kobets, E.N. Khatsko, M. Baran, R. Szymczak, P. Lemmens, H. Berger // Физика низких температур. — 2008. — Т. 34, № 8. — С. 798–803. — Бібліогр.: 7 назв. — англ.
Підтримка:
The authors would like to thank Dr. V.I. Fomin and Dr. V.P. Gnezdilov for fruitful discussions. This work has been supported in part by Ukrainian-Russian grant № 8-2008.
Дата:
2008
Переглядів:
841
Завантажень:
437
Анотація:
The magnetic and magnetoresonance properties of a new single-crystal compound Ni₅(TeO₃)₄Cl₂ are
studied. The measurements of the magnetization and magnetic susceptibility of the crystal in a wide temperature
range (5–300 K) made it possible to conclude that Ni₅(TeO₃)₄Cl₂ is a quasi-two-dimensional antiferromagnet
with the easy magnetization axis a* directed perpendicular crystallographic plane bc and a magnetic
ordering temperature TN≈21 K. The resonance measurements at 4.2 K in wide range of frequencies
(25–105 GHz) and magnetic field (up to 200 kOe) permitted us to obtain the frequency–field dependence of
AFMR spectrum for a field applied along the easy magnetization axis a*. It is shown that the magnetic field
directed along the antiferromagnetism axis (H||a*) induces the magnetic phase transition of a spin-flop type
which is found to be Hsf≈120 kOe. The magnetic resonance experimental data are described qualitatively
in model of the biaxial antiferromagnet.
