Description: Excitation Spectra of Square Lattice Antiferromagnets : Theoretical Explanation of Experimental Observations, Hardcover by Piazza, Bastien Dalla, ISBN 3319264184, ISBN-13 9783319264189, Like New Used, Free shipping in the US 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.
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Book Title: Excitation Spectra of Square Lattice Antiferromagnets : Theoretic
Number of Pages: Xvii, 176 Pages
Publication Name: Excitation Spectra of Square Lattice Antiferromagnets : Theoretical Explanation of Experimental Observations
Language: English
Publisher: Springer International Publishing A&G
Publication Year: 2016
Subject: Materials Science / General, Physics / Quantum Theory, Physics / Magnetism, Materials Science / Electronic Materials
Item Weight: 148.3 Oz
Type: Textbook
Item Length: 9.3 in
Author: Bastien Dalla Piazza
Subject Area: Technology & Engineering, Science
Series: Springer Theses Ser.
Item Width: 6.1 in
Format: Hardcover
