Loading…

Multiple magnon modes in spin- 1 2 Heisenberg antiferromagnet on simple square lattice in strong magnetic field

We discuss spin-1/2 Heisenberg antiferromagnet on simple square lattice in magnetic field H using a recently proposed bond-operator technique. It is well known that magnetically ordered phases of quantum magnets are well described at least qualitatively by the conventional spin-wave theory that only...

Full description

Saved in:

Bibliographic Details
Published in:	Physical review. B 2020-07, Vol.102 (1), p.1, Article 014409
Main Author:	Syromyatnikov, A. V.
Format:	Article
Language:	English
Subjects:	Anomalies Antiferromagnetism Computer simulation Green's functions Lattice vibration Magnetic fields Magnets Magnons Spin dynamics Structure factor
Citations:	Items that this one cites Items that cite this one
Online Access:	Get full text
Tags:	Add Tag No Tags, Be the first to tag this record!

cited_by	cdi_FETCH-LOGICAL-c207t-a3dfa53b379c98193d3b0b673b2daa9ae75fc6dbb80242426822af249d434ffb3
cites	cdi_FETCH-LOGICAL-c207t-a3dfa53b379c98193d3b0b673b2daa9ae75fc6dbb80242426822af249d434ffb3
container_end_page
container_issue	1
container_start_page	1
container_title	Physical review. B
container_volume	102
creator	Syromyatnikov, A. V.
description	We discuss spin-1/2 Heisenberg antiferromagnet on simple square lattice in magnetic field H using a recently proposed bond-operator technique. It is well known that magnetically ordered phases of quantum magnets are well described at least qualitatively by the conventional spin-wave theory that only introduces quantum corrections into the classical solution of the problem. We observe that quantum fluctuations change drastically dynamical properties of the considered model at H close to its saturation value: the dynamical structure factor shows anomalies corresponding to Green's function poles which have no counterparts in the spin-wave theory. That is, quantum fluctuations produce multiple short-wavelength magnon modes not changing qualitatively the long-wavelength spin dynamics. Our results are in agreement with previous quantum Monte Carlo simulations and exact diagonalization of finite clusters.
doi_str_mv	10.1103/PhysRevB.102.014409
format	article
fullrecord	<record><control><sourceid>proquest_cross</sourceid><recordid>TN_cdi_proquest_journals_2430407897</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>2430407897</sourcerecordid><originalsourceid>FETCH-LOGICAL-c207t-a3dfa53b379c98193d3b0b673b2daa9ae75fc6dbb80242426822af249d434ffb3</originalsourceid><addsrcrecordid>eNo9kF9LwzAUxYMoOOY-gS8Bnztv_qxtHnWoExRF9LkkbTIz2qRLUmHf3s6q3Id7ufzOOXAQuiSwJATY9evnIb7pr9slAboEwjmIEzSjPBeZELk4_b9XcI4WMe4AgOQgChAz5J-HNtm-1biTW-cd7nyjI7YOx966DBNM8UbbqJ3SYYulS9boEPyR1gmPgmi7ozzuBxk0bmVKttY_Bil4t8UTaWtsrG6bC3RmZBv14nfP0cf93ft6kz29PDyub56ymkKRMskaI1dMsULUoiSCNUyBygumaCOlkLpYmTpvlCqB8nHyklJpKBcNZ9wYxeboavLtg98POqZq54fgxsiKcgYcilIUI8Umqg4-xqBN1QfbyXCoCFTHcqu_cscHraZy2Tehjm_O</addsrcrecordid><sourcetype>Aggregation Database</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype><pqid>2430407897</pqid></control><display><type>article</type><title>Multiple magnon modes in spin- 1 2 Heisenberg antiferromagnet on simple square lattice in strong magnetic field</title><source>American Physical Society:Jisc Collections:APS Read and Publish 2023-2025 (reading list)</source><creator>Syromyatnikov, A. V.</creator><creatorcontrib>Syromyatnikov, A. V.</creatorcontrib><description>We discuss spin-1/2 Heisenberg antiferromagnet on simple square lattice in magnetic field H using a recently proposed bond-operator technique. It is well known that magnetically ordered phases of quantum magnets are well described at least qualitatively by the conventional spin-wave theory that only introduces quantum corrections into the classical solution of the problem. We observe that quantum fluctuations change drastically dynamical properties of the considered model at H close to its saturation value: the dynamical structure factor shows anomalies corresponding to Green's function poles which have no counterparts in the spin-wave theory. That is, quantum fluctuations produce multiple short-wavelength magnon modes not changing qualitatively the long-wavelength spin dynamics. Our results are in agreement with previous quantum Monte Carlo simulations and exact diagonalization of finite clusters.</description><identifier>ISSN: 2469-9950</identifier><identifier>EISSN: 2469-9969</identifier><identifier>DOI: 10.1103/PhysRevB.102.014409</identifier><language>eng</language><publisher>College Park: American Physical Society</publisher><subject>Anomalies ; Antiferromagnetism ; Computer simulation ; Green's functions ; Lattice vibration ; Magnetic fields ; Magnets ; Magnons ; Spin dynamics ; Structure factor</subject><ispartof>Physical review. B, 2020-07, Vol.102 (1), p.1, Article 014409</ispartof><rights>Copyright American Physical Society Jul 1, 2020</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c207t-a3dfa53b379c98193d3b0b673b2daa9ae75fc6dbb80242426822af249d434ffb3</citedby><cites>FETCH-LOGICAL-c207t-a3dfa53b379c98193d3b0b673b2daa9ae75fc6dbb80242426822af249d434ffb3</cites><orcidid>0000-0002-0505-5217</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,780,784,27924,27925</link.rule.ids></links><search><creatorcontrib>Syromyatnikov, A. V.</creatorcontrib><title>Multiple magnon modes in spin- 1 2 Heisenberg antiferromagnet on simple square lattice in strong magnetic field</title><title>Physical review. B</title><description>We discuss spin-1/2 Heisenberg antiferromagnet on simple square lattice in magnetic field H using a recently proposed bond-operator technique. It is well known that magnetically ordered phases of quantum magnets are well described at least qualitatively by the conventional spin-wave theory that only introduces quantum corrections into the classical solution of the problem. We observe that quantum fluctuations change drastically dynamical properties of the considered model at H close to its saturation value: the dynamical structure factor shows anomalies corresponding to Green's function poles which have no counterparts in the spin-wave theory. That is, quantum fluctuations produce multiple short-wavelength magnon modes not changing qualitatively the long-wavelength spin dynamics. Our results are in agreement with previous quantum Monte Carlo simulations and exact diagonalization of finite clusters.</description><subject>Anomalies</subject><subject>Antiferromagnetism</subject><subject>Computer simulation</subject><subject>Green's functions</subject><subject>Lattice vibration</subject><subject>Magnetic fields</subject><subject>Magnets</subject><subject>Magnons</subject><subject>Spin dynamics</subject><subject>Structure factor</subject><issn>2469-9950</issn><issn>2469-9969</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2020</creationdate><recordtype>article</recordtype><recordid>eNo9kF9LwzAUxYMoOOY-gS8Bnztv_qxtHnWoExRF9LkkbTIz2qRLUmHf3s6q3Id7ufzOOXAQuiSwJATY9evnIb7pr9slAboEwjmIEzSjPBeZELk4_b9XcI4WMe4AgOQgChAz5J-HNtm-1biTW-cd7nyjI7YOx966DBNM8UbbqJ3SYYulS9boEPyR1gmPgmi7ozzuBxk0bmVKttY_Bil4t8UTaWtsrG6bC3RmZBv14nfP0cf93ft6kz29PDyub56ymkKRMskaI1dMsULUoiSCNUyBygumaCOlkLpYmTpvlCqB8nHyklJpKBcNZ9wYxeboavLtg98POqZq54fgxsiKcgYcilIUI8Umqg4-xqBN1QfbyXCoCFTHcqu_cscHraZy2Tehjm_O</recordid><startdate>20200701</startdate><enddate>20200701</enddate><creator>Syromyatnikov, A. V.</creator><general>American Physical Society</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7SR</scope><scope>7U5</scope><scope>8BQ</scope><scope>8FD</scope><scope>H8D</scope><scope>JG9</scope><scope>L7M</scope><orcidid>https://orcid.org/0000-0002-0505-5217</orcidid></search><sort><creationdate>20200701</creationdate><title>Multiple magnon modes in spin- 1 2 Heisenberg antiferromagnet on simple square lattice in strong magnetic field</title><author>Syromyatnikov, A. V.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c207t-a3dfa53b379c98193d3b0b673b2daa9ae75fc6dbb80242426822af249d434ffb3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2020</creationdate><topic>Anomalies</topic><topic>Antiferromagnetism</topic><topic>Computer simulation</topic><topic>Green's functions</topic><topic>Lattice vibration</topic><topic>Magnetic fields</topic><topic>Magnets</topic><topic>Magnons</topic><topic>Spin dynamics</topic><topic>Structure factor</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Syromyatnikov, A. V.</creatorcontrib><collection>CrossRef</collection><collection>Engineered Materials Abstracts</collection><collection>Solid State and Superconductivity Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Aerospace Database</collection><collection>Materials Research Database</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>Physical review. B</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Syromyatnikov, A. V.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Multiple magnon modes in spin- 1 2 Heisenberg antiferromagnet on simple square lattice in strong magnetic field</atitle><jtitle>Physical review. B</jtitle><date>2020-07-01</date><risdate>2020</risdate><volume>102</volume><issue>1</issue><spage>1</spage><pages>1-</pages><artnum>014409</artnum><issn>2469-9950</issn><eissn>2469-9969</eissn><abstract>We discuss spin-1/2 Heisenberg antiferromagnet on simple square lattice in magnetic field H using a recently proposed bond-operator technique. It is well known that magnetically ordered phases of quantum magnets are well described at least qualitatively by the conventional spin-wave theory that only introduces quantum corrections into the classical solution of the problem. We observe that quantum fluctuations change drastically dynamical properties of the considered model at H close to its saturation value: the dynamical structure factor shows anomalies corresponding to Green's function poles which have no counterparts in the spin-wave theory. That is, quantum fluctuations produce multiple short-wavelength magnon modes not changing qualitatively the long-wavelength spin dynamics. Our results are in agreement with previous quantum Monte Carlo simulations and exact diagonalization of finite clusters.</abstract><cop>College Park</cop><pub>American Physical Society</pub><doi>10.1103/PhysRevB.102.014409</doi><orcidid>https://orcid.org/0000-0002-0505-5217</orcidid></addata></record>
fulltext	fulltext
identifier	ISSN: 2469-9950
ispartof	Physical review. B, 2020-07, Vol.102 (1), p.1, Article 014409
issn	2469-9950 2469-9969
language	eng
recordid	cdi_proquest_journals_2430407897
source	American Physical Society:Jisc Collections:APS Read and Publish 2023-2025 (reading list)
subjects	Anomalies Antiferromagnetism Computer simulation Green's functions Lattice vibration Magnetic fields Magnets Magnons Spin dynamics Structure factor
title	Multiple magnon modes in spin- 1 2 Heisenberg antiferromagnet on simple square lattice in strong magnetic field
url	http://sfxeu10.hosted.exlibrisgroup.com/loughborough?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2025-01-07T19%3A27%3A33IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-proquest_cross&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.atitle=Multiple%20magnon%20modes%20in%20spin-%201%202%20Heisenberg%20antiferromagnet%20on%20simple%20square%20lattice%20in%20strong%20magnetic%20field&rft.jtitle=Physical%20review.%20B&rft.au=Syromyatnikov,%20A.%20V.&rft.date=2020-07-01&rft.volume=102&rft.issue=1&rft.spage=1&rft.pages=1-&rft.artnum=014409&rft.issn=2469-9950&rft.eissn=2469-9969&rft_id=info:doi/10.1103/PhysRevB.102.014409&rft_dat=%3Cproquest_cross%3E2430407897%3C/proquest_cross%3E%3Cgrp_id%3Ecdi_FETCH-LOGICAL-c207t-a3dfa53b379c98193d3b0b673b2daa9ae75fc6dbb80242426822af249d434ffb3%3C/grp_id%3E%3Coa%3E%3C/oa%3E%3Curl%3E%3C/url%3E&rft_id=info:oai/&rft_pqid=2430407897&rft_id=info:pmid/&rfr_iscdi=true