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Excitation spectra of square lattice...

Piazza, Bastien Dalla.

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Excitation spectra of square lattice antiferromagnets : = theoretical explanation of experimental observations /

Record Type:	Language materials, printed : Monograph/item
Title/Author:	Excitation spectra of square lattice antiferromagnets :/ BastienDalla Piazza.
Reminder of title:	theoretical explanation of experimental observations /
Author:	Piazza, Bastien Dalla.
Published:	Cham :Springer, : 2016.,
Description:	xvii, 176 p. :ill. (some col.) ;25 cm.
Notes:	"Doctoral thesis accepted by EPFL, Institute of Condensed Matter Physics, Switzerland."
[NT 15003449]:	Introduction -- Variational Study of the Square Lattice Anti-ferromagnet Magnetic Zone-Boundary Anomaly -- Modeling the Spin-Wave Dispersion of Insulating Cuprate Materials.
Subject:	Antiferromagnetism. -
ISBN:	9783319264189

Excitation spectra of square lattice antiferromagnets : = theoretical explanation of experimental observations /
Piazza, Bastien Dalla.

Excitation spectra of square lattice antiferromagnets :theoretical explanation of experimental observations /BastienDalla Piazza. - Cham :Springer,2016. - xvii, 176 p. :ill. (some col.) ;25 cm. - Springer theses. - Springer theses..

"Doctoral thesis accepted by EPFL, Institute of Condensed Matter Physics, Switzerland."

Includes bibliographical references.

Introduction -- Variational Study of the Square Lattice Anti-ferromagnet Magnetic Zone-Boundary Anomaly -- Modeling the Spin-Wave Dispersion of Insulating Cuprate Materials.

This thesis presents a qualitative advance in our understandingof quantum effects in layered magnetic materials. The nearest neighbor Heisenberg ferromagnetic ranks among the oldest and mostfundamental models of quantum many body effects. It has long beenestablished 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 approximationthe dynamics can be described as semi-classical spin waves. Through theoretical advances the author demonstrates that at highenergy 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 unifieddescription of the magnetic excitation spectra of a range of cuprate parent compounds to the high temperature superconductors.

ISBN: 9783319264189EUR99.99Subjects--Topical Terms:

989899
Antiferromagnetism.

LC Class. No.: QC761.5

Dewey Class. No.: 538/.44

Excitation spectra of square lattice antiferromagnets : = theoretical explanation of experimental observations /
LDR:02164nam a2200253 a 4500 001 2017786
003 OCoLC
005 20160824044223.0
008 160929s2016 sz a b 000 0 eng d
020 $a 9783319264189 $q (hbk.) : $c EUR99.99
020 $a 9783319264196 $q (ebook)
020 $a 3319264192 $q (ebook)
020 $z 3319264184
035 $a (OCoLC)934607883
040 $a YDXCP $b eng $e pn $c YDXCP $d IDEBK $d GW5XE $d EBLCP $d N $d OCLCF $d AZU $d COO $d CDX $d DEBSZ
050 4 $a QC761.5
082 0 4 $a 538/.44 $2 23
100 1 $a Piazza, Bastien Dalla. $3 2182535
245 1 0 $a Excitation spectra of square lattice antiferromagnets : $b theoretical explanation of experimental observations / $c BastienDalla Piazza.
260 $a Cham : $b Springer, $c 2016.
300 $a xvii, 176 p. : $b ill. (some col.) ; $c 25 cm.
490 1 $a Springer theses
500 $a "Doctoral thesis accepted by EPFL, Institute of Condensed Matter Physics, Switzerland."
504 $a Includes bibliographical references.
505 0 $a Introduction -- Variational Study of the Square Lattice Anti-ferromagnet Magnetic Zone-Boundary Anomaly -- Modeling the Spin-Wave Dispersion of Insulating Cuprate Materials.
520 $a This thesis presents a qualitative advance in our understandingof quantum effects in layered magnetic materials. The nearest neighbor Heisenberg ferromagnetic ranks among the oldest and mostfundamental models of quantum many body effects. It has long beenestablished 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 approximationthe dynamics can be described as semi-classical spin waves. Through theoretical advances the author demonstrates that at highenergy 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 unifieddescription of the magnetic excitation spectra of a range of cuprate parent compounds to the high temperature superconductors.
650 0 $a Antiferromagnetism. $3 989899
650 0 $a Lattice theory. $3 532024
830 0 $a Springer theses. $3 1314442