Spin-glass magnetic ordering in CoMgGaO₂BO₃ ludwigite
The single crystal needle shape samples of diamagnetically diluted cobalt ludwigite CoMgGaO₂BO₃ have been grown by the flux method. The results of x-ray diffraction and both dc and ac magnetic measurements are presented. The unit cell volume undergoes a noticable growth under dilution from 328.31...
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| Опубліковано в: : | Физика низких температур |
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| Дата: | 2012 |
| Автори: | , , , , , , |
| Формат: | Стаття |
| Мова: | Англійська |
| Опубліковано: |
Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України
2012
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| Теми: | |
| Онлайн доступ: | https://nasplib.isofts.kiev.ua/handle/123456789/116844 |
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| Назва журналу: | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| Цитувати: | Spin-glass magnetic ordering in CoMgGaO₂BO₃ ludwigite / N.B. Ivanova, M.S. Platunov, Yu.V. Knyazev, N.V. Kazak, L.N. Bezmaternykh, E.V. Eremin, and A.D. Vasiliev // Физика низких температур. — 2012. — Т. 38, № 2. — С. 214-217. — Бібліогр.: 13 назв. — англ. |
Репозитарії
Digital Library of Periodicals of National Academy of Sciences of Ukraine| Резюме: | The single crystal needle shape samples of diamagnetically diluted cobalt ludwigite CoMgGaO₂BO₃ have
been grown by the flux method. The results of x-ray diffraction and both dc and ac magnetic measurements are
presented. The unit cell volume undergoes a noticable growth under dilution from 328.31 Å3
for the parent compound
Co₃O₂BO₃ to 345.46 ų
for CoMgGaO₂BO₃. The temperature of magnetic transition is considerably
lower for the latter compound (25 K against 43 K for Co₃O₂BO₃). The dc magnetization temperature dependencies
undergo the splitting of field cooled and zero-field cooled regimes and the ac magnetic susceptibility
temperature dependencies are frequency dependent pointing out a possible spin-glass freezing in the magnetic
system.
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| ISSN: | 0132-6414 |