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Spontaneous Magnetic Superdomain Wall Fluctuations in an Artificial Antiferromagnet
Collective dynamics often play an important role in determining the stability of ground states for both naturally occurring materials and metamaterials. We studied the temperature dependent dynamics of antiferromagnetically ordered superdomains in a square artificial spin lattice using soft x-ray ph...
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| Published in: | Physical review letters 2019-11, Vol.123 (19), p.197202-197202, Article 197202 |
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| Main Authors: | , , , , , , , , , , , , |
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| cited_by | cdi_FETCH-LOGICAL-c391t-3ec8b2a6baa7e6b42eee828afa9df345ecdf172007be12721e044531deb263ee3 |
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| cites | cdi_FETCH-LOGICAL-c391t-3ec8b2a6baa7e6b42eee828afa9df345ecdf172007be12721e044531deb263ee3 |
| container_end_page | 197202 |
| container_issue | 19 |
| container_start_page | 197202 |
| container_title | Physical review letters |
| container_volume | 123 |
| creator | Chen, X. M. Farmer, B. Woods, J. S. Dhuey, S. Hu, W. Mazzoli, C. Wilkins, S. B. Chopdekar, R. V. Scholl, A. Robinson, I. K. De Long, L. E. Roy, S. Hastings, J. T. |
| description | Collective dynamics often play an important role in determining the stability of ground states for both naturally occurring materials and metamaterials. We studied the temperature dependent dynamics of antiferromagnetically ordered superdomains in a square artificial spin lattice using soft x-ray photon correlation spectroscopy. We observed an exponential slowing down of superdomain wall motion below the antiferromagnetic onset temperature, similar to the behavior of typical bulk antiferromagnets. Using a continuous time random walk model we show that these superdomain walls undergo low-temperature ballistic and high-temperature diffusive motions. |
| doi_str_mv | 10.1103/PhysRevLett.123.197202 |
| format | article |
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M. ; Farmer, B. ; Woods, J. S. ; Dhuey, S. ; Hu, W. ; Mazzoli, C. ; Wilkins, S. B. ; Chopdekar, R. V. ; Scholl, A. ; Robinson, I. K. ; De Long, L. E. ; Roy, S. ; Hastings, J. T.</creator><creatorcontrib>Chen, X. M. ; Farmer, B. ; Woods, J. S. ; Dhuey, S. ; Hu, W. ; Mazzoli, C. ; Wilkins, S. B. ; Chopdekar, R. V. ; Scholl, A. ; Robinson, I. K. ; De Long, L. E. ; Roy, S. ; Hastings, J. T. ; Brookhaven National Lab. (BNL), Upton, NY (United States) ; Argonne National Lab. (ANL), Argonne, IL (United States) ; Univ. of Kentucky, Lexington, KY (United States) ; Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)</creatorcontrib><description>Collective dynamics often play an important role in determining the stability of ground states for both naturally occurring materials and metamaterials. We studied the temperature dependent dynamics of antiferromagnetically ordered superdomains in a square artificial spin lattice using soft x-ray photon correlation spectroscopy. We observed an exponential slowing down of superdomain wall motion below the antiferromagnetic onset temperature, similar to the behavior of typical bulk antiferromagnets. Using a continuous time random walk model we show that these superdomain walls undergo low-temperature ballistic and high-temperature diffusive motions.</description><identifier>ISSN: 0031-9007</identifier><identifier>EISSN: 1079-7114</identifier><identifier>DOI: 10.1103/PhysRevLett.123.197202</identifier><language>eng</language><publisher>College Park: American Physical Society</publisher><subject>Antiferromagnetism ; artificial spin ice ; CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY ; Dipolar interaction ; Domain walls ; Dynamic stability ; Dynamics of phase separation ; High temperature ; Low temperature ; Magnetic phase transitions ; Magnetization dynamics ; MATERIALS SCIENCE ; Metamaterials ; nanomagnetics ; NANOSCIENCE AND NANOTECHNOLOGY ; Photon correlation spectroscopy ; Random walk ; Random walk theory ; Soft x rays ; Temperature dependence ; Variation ; X-ray scattering</subject><ispartof>Physical review letters, 2019-11, Vol.123 (19), p.197202-197202, Article 197202</ispartof><rights>Copyright American Physical Society Nov 8, 2019</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c391t-3ec8b2a6baa7e6b42eee828afa9df345ecdf172007be12721e044531deb263ee3</citedby><cites>FETCH-LOGICAL-c391t-3ec8b2a6baa7e6b42eee828afa9df345ecdf172007be12721e044531deb263ee3</cites><orcidid>0000-0001-6727-6501 ; 0000-0002-5695-7894 ; 0000-0003-2686-2736 ; 0000-0003-4897-5221 ; 0000-0003-1191-3350 ; 0000000311913350 ; 0000000167276501 ; 0000000326862736 ; 0000000256957894 ; 0000000348975221</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>230,314,780,784,885,27922,27923</link.rule.ids><backlink>$$Uhttps://www.osti.gov/servlets/purl/1566874$$D View this record in Osti.gov$$Hfree_for_read</backlink></links><search><creatorcontrib>Chen, X. M.</creatorcontrib><creatorcontrib>Farmer, B.</creatorcontrib><creatorcontrib>Woods, J. S.</creatorcontrib><creatorcontrib>Dhuey, S.</creatorcontrib><creatorcontrib>Hu, W.</creatorcontrib><creatorcontrib>Mazzoli, C.</creatorcontrib><creatorcontrib>Wilkins, S. B.</creatorcontrib><creatorcontrib>Chopdekar, R. V.</creatorcontrib><creatorcontrib>Scholl, A.</creatorcontrib><creatorcontrib>Robinson, I. K.</creatorcontrib><creatorcontrib>De Long, L. E.</creatorcontrib><creatorcontrib>Roy, S.</creatorcontrib><creatorcontrib>Hastings, J. T.</creatorcontrib><creatorcontrib>Brookhaven National Lab. (BNL), Upton, NY (United States)</creatorcontrib><creatorcontrib>Argonne National Lab. (ANL), Argonne, IL (United States)</creatorcontrib><creatorcontrib>Univ. of Kentucky, Lexington, KY (United States)</creatorcontrib><creatorcontrib>Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)</creatorcontrib><title>Spontaneous Magnetic Superdomain Wall Fluctuations in an Artificial Antiferromagnet</title><title>Physical review letters</title><description>Collective dynamics often play an important role in determining the stability of ground states for both naturally occurring materials and metamaterials. We studied the temperature dependent dynamics of antiferromagnetically ordered superdomains in a square artificial spin lattice using soft x-ray photon correlation spectroscopy. We observed an exponential slowing down of superdomain wall motion below the antiferromagnetic onset temperature, similar to the behavior of typical bulk antiferromagnets. Using a continuous time random walk model we show that these superdomain walls undergo low-temperature ballistic and high-temperature diffusive motions.</description><subject>Antiferromagnetism</subject><subject>artificial spin ice</subject><subject>CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY</subject><subject>Dipolar interaction</subject><subject>Domain walls</subject><subject>Dynamic stability</subject><subject>Dynamics of phase separation</subject><subject>High temperature</subject><subject>Low temperature</subject><subject>Magnetic phase transitions</subject><subject>Magnetization dynamics</subject><subject>MATERIALS SCIENCE</subject><subject>Metamaterials</subject><subject>nanomagnetics</subject><subject>NANOSCIENCE AND NANOTECHNOLOGY</subject><subject>Photon correlation spectroscopy</subject><subject>Random walk</subject><subject>Random walk theory</subject><subject>Soft x rays</subject><subject>Temperature dependence</subject><subject>Variation</subject><subject>X-ray scattering</subject><issn>0031-9007</issn><issn>1079-7114</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2019</creationdate><recordtype>article</recordtype><recordid>eNpdkcFKAzEQhoMoWKuvIItevGzNJNvN7rGIVaGiWMVjyKazNrJNapIV-vamrAfxNMPwzQ8_HyHnQCcAlF8_r3fhBb8XGOMEGJ9ALRhlB2QEVNS5ACgOyYhSDnlNqTgmJyF8UkqBldWILJdbZ6Oy6PqQPaoPi9HobNlv0a_cRhmbvauuy-Zdr2OvonE2ZOmobDbz0bRGG9VlM5tW9D497ANOyVGruoBnv3NM3ua3rzf3-eLp7uFmtsg1ryHmHHXVMFU2Sgksm4IhYsUq1ap61fJiinrVQqpCRYPABAOkRTHlsMKGlRyRj8nFkOtCNDJoE1GvtbMWdZQwLctKFAm6GqCtd189hig3JmjsuqGzZBwqwbkoq4Re_kM_Xe9tqrCnxFRw4HWiyoHS3oXgsZVbbzbK7yRQuRci_wiRSYgchPAfddGCWQ</recordid><startdate>20191106</startdate><enddate>20191106</enddate><creator>Chen, X. M.</creator><creator>Farmer, B.</creator><creator>Woods, J. S.</creator><creator>Dhuey, S.</creator><creator>Hu, W.</creator><creator>Mazzoli, C.</creator><creator>Wilkins, S. B.</creator><creator>Chopdekar, R. V.</creator><creator>Scholl, A.</creator><creator>Robinson, I. K.</creator><creator>De Long, L. E.</creator><creator>Roy, S.</creator><creator>Hastings, J. T.</creator><general>American Physical Society</general><general>American Physical Society (APS)</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7U5</scope><scope>8FD</scope><scope>H8D</scope><scope>L7M</scope><scope>7X8</scope><scope>OIOZB</scope><scope>OTOTI</scope><orcidid>https://orcid.org/0000-0001-6727-6501</orcidid><orcidid>https://orcid.org/0000-0002-5695-7894</orcidid><orcidid>https://orcid.org/0000-0003-2686-2736</orcidid><orcidid>https://orcid.org/0000-0003-4897-5221</orcidid><orcidid>https://orcid.org/0000-0003-1191-3350</orcidid><orcidid>https://orcid.org/0000000311913350</orcidid><orcidid>https://orcid.org/0000000167276501</orcidid><orcidid>https://orcid.org/0000000326862736</orcidid><orcidid>https://orcid.org/0000000256957894</orcidid><orcidid>https://orcid.org/0000000348975221</orcidid></search><sort><creationdate>20191106</creationdate><title>Spontaneous Magnetic Superdomain Wall Fluctuations in an Artificial Antiferromagnet</title><author>Chen, X. M. ; Farmer, B. ; Woods, J. S. ; Dhuey, S. ; Hu, W. ; Mazzoli, C. ; Wilkins, S. B. ; Chopdekar, R. V. ; Scholl, A. ; Robinson, I. K. ; De Long, L. E. ; Roy, S. ; Hastings, J. 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(ANL), Argonne, IL (United States)</aucorp><aucorp>Univ. of Kentucky, Lexington, KY (United States)</aucorp><aucorp>Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)</aucorp><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Spontaneous Magnetic Superdomain Wall Fluctuations in an Artificial Antiferromagnet</atitle><jtitle>Physical review letters</jtitle><date>2019-11-06</date><risdate>2019</risdate><volume>123</volume><issue>19</issue><spage>197202</spage><epage>197202</epage><pages>197202-197202</pages><artnum>197202</artnum><issn>0031-9007</issn><eissn>1079-7114</eissn><abstract>Collective dynamics often play an important role in determining the stability of ground states for both naturally occurring materials and metamaterials. We studied the temperature dependent dynamics of antiferromagnetically ordered superdomains in a square artificial spin lattice using soft x-ray photon correlation spectroscopy. We observed an exponential slowing down of superdomain wall motion below the antiferromagnetic onset temperature, similar to the behavior of typical bulk antiferromagnets. Using a continuous time random walk model we show that these superdomain walls undergo low-temperature ballistic and high-temperature diffusive motions.</abstract><cop>College Park</cop><pub>American Physical Society</pub><doi>10.1103/PhysRevLett.123.197202</doi><tpages>1</tpages><orcidid>https://orcid.org/0000-0001-6727-6501</orcidid><orcidid>https://orcid.org/0000-0002-5695-7894</orcidid><orcidid>https://orcid.org/0000-0003-2686-2736</orcidid><orcidid>https://orcid.org/0000-0003-4897-5221</orcidid><orcidid>https://orcid.org/0000-0003-1191-3350</orcidid><orcidid>https://orcid.org/0000000311913350</orcidid><orcidid>https://orcid.org/0000000167276501</orcidid><orcidid>https://orcid.org/0000000326862736</orcidid><orcidid>https://orcid.org/0000000256957894</orcidid><orcidid>https://orcid.org/0000000348975221</orcidid><oa>free_for_read</oa></addata></record> |
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| ispartof | Physical review letters, 2019-11, Vol.123 (19), p.197202-197202, Article 197202 |
| issn | 0031-9007 1079-7114 |
| language | eng |
| recordid | cdi_osti_scitechconnect_1566874 |
| source | American Physical Society:Jisc Collections:APS Read and Publish 2023-2025 (reading list) |
| subjects | Antiferromagnetism artificial spin ice CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY Dipolar interaction Domain walls Dynamic stability Dynamics of phase separation High temperature Low temperature Magnetic phase transitions Magnetization dynamics MATERIALS SCIENCE Metamaterials nanomagnetics NANOSCIENCE AND NANOTECHNOLOGY Photon correlation spectroscopy Random walk Random walk theory Soft x rays Temperature dependence Variation X-ray scattering |
| title | Spontaneous Magnetic Superdomain Wall Fluctuations in an Artificial Antiferromagnet |
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