| 书目名称 | Excitation Spectra of Square Lattice Antiferromagnets |
| 副标题 | Theoretical Explanat |
| 编辑 | Bastien Dalla Piazza |
| 视频video | |
| 概述 | Nominated as an outstanding Ph.D. thesis by the École Polytechnique Fédérale de Lausanne (EPFL), Switzerland.Presents new theoretical framework explaining anomaly in neutron scattering from square lat |
| 丛书名称 | Springer Theses |
| 图书封面 |  |
| 描述 | .This thesis presents a qualitative advance in our understanding of quantum effects in layered magnetic materials. The nearest neighbor Heisenberg ferromagnetic ranks among the oldest and most fundamental models of quantum many body effects. It has long been established that in one dimension quantum fluctuations lead to a quantum disordered ground state with fractional excitations called spinons." In two dimensions, the ground state of the Heisenberg model displays static order and to first approximation the dynamics can be described as semi-classical spin waves. Through theoretical advances the author demonstrates that at high energy around particular points in reciprocal space these semi-classical spin-waves deconfine into fractional excitations akin to the one-dimensional spinons. He thereby provides the first explanation of a long-standing experimental observation..In the second half of his thesis Bastien Dalla Piazza develops a unified description of the magnetic excitation spectra of a range of cuprate parent compounds to the high temperature superconductors.. |
| 出版日期 | Book 2016 |
| 关键词 | Quantum magnetism; Square lattice antiferromagnet; Spin-wave dispersion; Magnetic zone-boundary anomaly |
| 版次 | 1 |
| doi | https://doi.org/10.1007/978-3-319-26419-6 |
| isbn_softcover | 978-3-319-79951-3 |
| isbn_ebook | 978-3-319-26419-6Series ISSN 2190-5053 Series E-ISSN 2190-5061 |
| issn_series | 2190-5053 |
| copyright | Springer International Publishing Switzerland 2016 |
发表于 2025-3-21 17:32:24
