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Preparation, magnetoresistance and magnetocaloric effect of two-layered perovskite La2.5-xK0.5+xMn2O7+δ

✍ Scribed by W. Zhong; W. Chen; H.Y. Jiang; X.S. Liu; C.T. Au; Y.W. Du

Book ID
111620459
Publisher
Springer
Year
2002
Tongue
English
Weight
239 KB
Volume
30
Category
Article
ISSN
1434-6036

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✍ H.D. Yang; I.P. Hong; F.H. Hsu; H.H. Li; S.Y. Tu; H.L. Huang; S. Chatterjee; S. 📂 Article 📅 2003 🏛 Elsevier Science 🌐 English ⚖ 132 KB

The specific heat ðCÞ of bi-layered manganites La 2 2 2x Sr 1 þ 2x Mn 2 O 7 (x ¼ 0:3 and 0.5) is investigated for the ground state of low temperature excitations. A T 3=2 dependent term in the low temperature specific heat (LTSH) is identified at zero magnetic field and suppressed by magnetic fields