Mahesh, PN and Shastry, BS
(1996)
*The Hall constant of correlated electrons: Cluster calculation for Hubbard model.*
In: Physica B, 223-22
(1-4).
pp. 501-505.

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## Abstract

We calculate the Hall constant $R_H(\omega,T)$ for the high $T_c$ materials $La_{2-x}Sr_xCuO_4$ and $YBa_2Cu_3O_{7-x}$ using the 2D Hubbard model, on a cluster of dimension (2×3). Close to half filling, at low temperatures and high frequency, we find that $R_H(\omega)$ is electronlike in the weak correlation regime and in the strong correlation regime it is holelike with roughly 1/T+const form. At high frequencies, for $La_{2-x}Sr_xCuO_4$ we obtain a change in the sign of $R_H(\omega)$ at $x\sim 0.3$, which is in good agreement with the experimental data.

Item Type: | Journal Article |
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Related URLs: | |

Additional Information: | Copyright of this article belongs to Elsevier. |

Department/Centre: | Division of Physical & Mathematical Sciences > Physics |

Date Deposited: | 03 Sep 2007 |

Last Modified: | 19 Sep 2010 04:37 |

URI: | http://eprints.iisc.ernet.in/id/eprint/10819 |

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