Journal article
Low-temperature specific heat of La1.85Sr0.15CuO4 and La2CuO4
Abstract
The specific heat of polycrystalline samples of the high-Tc superconductor La1.85Sr0.15CuO4 and the undoped insulator La2CuO4 have been measured from 80 mK to 4 K and from 7 to 55 K. The low-temperature limit of the specific heat of La1.85Sr0.15CuO4 can be well accounted for by a sizable linear T term (γT) in addition to the Debye-like term (BT3) with γ=1.8±0.2 mJ/K2 mol. A contribution due to possible magnetic impurities is also present. In …
Authors
Feng YP; Jin A; Finotello D; Gillis KA; Chan MHW; Greedan JE
Journal
Physical Review B, Vol. 38, No. 10, pp. 7041–7044
Publisher
American Physical Society (APS)
Publication Date
October 1, 1988
DOI
10.1103/physrevb.38.7041
ISSN
2469-9950