Наукова електронна бібліотека
періодичних видань НАН України
періодичних видань НАН України
The evidence of a new magnetic anomaly in Zn-doped LSCO cuprates
Репозиторій DSpace/Manakin
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The evidence of a new magnetic anomaly in Zn-doped LSCO cuprates
Тема:
Низкотемпеpатуpный магнетизм
Інший ID:
PACS: 74.72.–h, 74.25.Bt
Посилання:
The evidence of a new magnetic anomaly in Zn-doped LSCO cuprates / M.M. Nadareishvili, K.A. Kvavadze // Физика низких температур. — 2010. — Т. 36, № 3. — С. 268-271. — Бібліогр.: 11 назв. — англ.
Підтримка:
The authors express their very deep gratitude to
Prof. G. Kharadze for his interest to the article and useful
discussion of the above-given results.
The modification of PDC was supported by the INTAS
Grant N1010-CT93–0046.
Дата:
2010
Переглядів:
792
Завантажень:
434
Анотація:
The investigations of low-temperature heat capacity in pure (y = 0) and Zn-doped La₁,₈₄Sr₀,₁₆Cu₁–yZnyO₄ samples (y = 0.033 and 0.06) have been performed in the interval of 1.8–60 K by a method of high-precision pulsed differential calorimetry, providing the measurements under the equilibrium conditions, in contrast to commonly used differential scanning calorimeters. For these systems a new heat capacity anomaly was observed in the nonsuperconducting state, which is related with Zn impurities and has the form of one wide peak. The anomaly does not show a phonon character as it strongly shifts towards the higher temperatures with the increase of Zn content, which is characteristic for the magnetic anomaly. Anomaly increases almost linearly with the impurity concentration.
