Abstract
In high-Tc cuprates it is strongly suggested that the phase diagram is characterized by two kinds of crossover temperatures Tmax(T0) and T*(Tc < T* < Tmax [1,2]. Intensive studies on the crossover phenomena around Tmax and T* have been performed to understand the anomalous normal state and clarify the mechanism of the superconductivity. The magnetic susceptibility x in Bi2Sr2CaCu2O8 (Bi2212) and La2-xSrxCuO4 (La214), following the Curie-Weiss law at T ≫ T max , gradually decreases at T < T max [3-5]. Detailed analyses on the x-T curves have revealed that the energy scale k B T max gives the effective antiferromagnetic (AF) exchange energy J eff between Cu 3d-spins and the gradual decrease of x at T < T max is due to the development of a (short range) AF correlation [3-5]. Recently angle-integrated photoemission spectroscopy (AIPES) has revealed that a gap-like structure, namely a pseudogap (PG), progressively develops over a wide T-range below T max [2]. The PG has the energy scale characterized by J eff ; that is, the spectral weight is depressed over the energy region of J eff around E f [6]. These facts indicate that the PG evolution will be closely related to the development of the AF correlation.
This is a preview of subscription content, log in via an institution to check access.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
Preview
Unable to display preview. Download preview PDF.
Similar content being viewed by others
References
M. Oda et al., Supercond. Sei. Technol. 13 (2000) R139.
T. Sato et al., Physica C 341-348 (2000) 815.
D. C. Johnston, Phys. Rev. Lett. 62 (1989), 957.
M. Oda et al., J. Phys. Soc. Jpn. 58 (1989)1137.
T. Nakano et al., Phys. Rev. B 49 (1994) 16000.
A. Ino et al., Phys. Rev. Lett. 81 (1998), 2124.
H. Yasuoka et al., Springer Series in Solid State Science 89, Springer-Verlag, 1989, p254.
R. E. Walstedt et al., Phys. Rev. B 44 (1991), 7760.
K. Ishida et al., Phys. Rev. B 58 (1998) 5960.
A. G. Loeser et al., Science 273 (1996), 325.
H. Ding et al., Nature 382 (1996), 51.
M. Oda et al., Physica C 281 (1997), 135.
F. J. Ohkawa, J. Phys. Soc. Jpn. 56 (1987) 2267.
T. Tanamoto et al., J. Phys. Soc. Jpn. 61 (1992), 1886.
H. Won and K. Maki, Phys. Rev. B 49 (1994), 1397.
T. Nakano et al., J. Phys. Soc. Jpn. 67 (1998), 2622.
N. Momono et al., J. Low Temp. Phys., 117 (1999), 353.
N. Momono and M. Ido, Physica C 264 (1996) 311.
K. Ishida et al., J. Phys. Soc. Jpn. 62 (1993) 2803.
T. Nakano et al., Phys. Rev. B 58 (1998) 5831.
M.-H. Julien et al., Phys. Rev. Lett. 84 (2000) 3422.
Y. Itoh et al., J. Phys. Soc. Jpn. 70 (2001) 644.
M. Kall et al., Physica C 225 (1994) 317.
H. Harashina et al., Physica C 263 (1996) 257.
C. Kendoziora et al., Phys. Rev. Lett. 77 (1996) 727.
J. W. Loram et al., Proc. of 10th Anniversary HTS Workshop, Houston, 1996.
Author information
Authors and Affiliations
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2002 Springer Science+Business Media Dordrecht
About this chapter
Cite this chapter
Momono, N., Nagata, T., Matsuzaki, T., Oda, M., Ido, M. (2002). Study on Electronic Specific Heat of LA2-xSRxCUO4; Pseudogap and Superconductivity. In: Annett, J.F., Kruchinin, S. (eds) New Trends in Superconductivity. NATO Science Series, vol 67. Springer, Dordrecht. https://doi.org/10.1007/978-94-010-0544-9_15
Download citation
DOI: https://doi.org/10.1007/978-94-010-0544-9_15
Publisher Name: Springer, Dordrecht
Print ISBN: 978-1-4020-0705-7
Online ISBN: 978-94-010-0544-9
eBook Packages: Springer Book Archive