Nanoscale Magnetic Ordering Dynamics in a High Curie Temperature Ferromagnet

Yueh Chun Wu; Gábor B. Halász; Joshua T. Damron; Zheng Gai; Huan Zhao; Yuxin Sun; Karin A. Dahmen; Changhee Sohn; Erica W. Carlson; Chengyun Hua; Shan Lin; Jeongkeun Song; Ho Nyung Lee; Benjamin J. Lawrie

doi:10.1021/acs.nanolett.4c05401

Nanoscale Magnetic Ordering Dynamics in a High Curie Temperature Ferromagnet

Yueh Chun Wu, Gábor B. Halász, Joshua T. Damron, Zheng Gai, Huan Zhao, Yuxin Sun, Karin A. Dahmen, Changhee Sohn, Erica W. Carlson, Chengyun Hua, Shan Lin, Jeongkeun Song, Ho Nyung Lee, Benjamin J. Lawrie

Research output: Contribution to journal › Article › peer-review

Abstract

Thermally driven transitions between ferromagnetic and paramagnetic phases are characterized by critical behavior with divergent susceptibilities, long-range correlations, and spin dynamics that can span kHz to GHz scales as the material approaches the critical temperature T_c, but it has proven technically challenging to probe the relevant length and time scales with most conventional measurement techniques. In this study, we employ scanning nitrogen-vacancy center based magnetometry and relaxometry to reveal the critical behavior of a high-T_c ferromagnetic oxide near its Curie temperature. Cluster analysis of the measured temperature-dependent nanoscale magnetic textures points to a 3D universality class with a correlation length that diverges near T_c. Meanwhile, the temperature-dependent spin dynamics, measured through all optical relaxometry suggest that the phase transition is in the XY universality class. Our results capture both static and dynamic aspects of critical behavior, providing insights into universal properties that govern phase transitions in magnetic materials.

Original language	English
Pages (from-to)	1473-1479
Number of pages	7
Journal	Nano Letters
Volume	25
Issue number	4
DOIs	https://doi.org/10.1021/acs.nanolett.4c05401
State	Published - Jan 29 2025

Funding

This research was sponsored by the U.S. Department of Energy, Office of Science, Basic Energy Sciences, Materials Sciences and Engineering Division and in part by the Computational Materials Sciences Program and Center for Predictive Simulation of Functional Materials. Scanning NV microscopy was supported by the Center for Nanophase Materials Sciences (CNMS), which is a US Department of Energy, Office of Science User Facility at Oak Ridge National Laboratory. YS and EC acknowledge support from from the Department of Energy under grant DOE-QIS (DE-FOA-0002449). EC acknowledges support from NSF Grant no. DMR-2006192. KD thanks the University of Illinois at Urbana\u2013Champaign for support. This manuscript has been authored by UT-Battelle, LLC, under contract DE-AC05-00OR22725 with the US Department of Energy (DOE). The US government retains and the publisher, by accepting the article for publication, acknowledges that the US government retains a nonexclusive, paid-up, irrevocable, worldwide license to publish or reproduce the published form of this manuscript, or allow others to do so, for US government purposes. DOE will provide public access to these results of federally sponsored research in accordance with the DOE Public Access Plan ( http://energy.gov/downloads/doe-public-access-plan ).

Keywords

NV center
Quantum sensing
Relaxometry

Access to Document

10.1021/acs.nanolett.4c05401

Cite this

@article{7329e0ba96c04fa08c4247ad545b6d58,

title = "Nanoscale Magnetic Ordering Dynamics in a High Curie Temperature Ferromagnet",

abstract = "Thermally driven transitions between ferromagnetic and paramagnetic phases are characterized by critical behavior with divergent susceptibilities, long-range correlations, and spin dynamics that can span kHz to GHz scales as the material approaches the critical temperature Tc, but it has proven technically challenging to probe the relevant length and time scales with most conventional measurement techniques. In this study, we employ scanning nitrogen-vacancy center based magnetometry and relaxometry to reveal the critical behavior of a high-Tc ferromagnetic oxide near its Curie temperature. Cluster analysis of the measured temperature-dependent nanoscale magnetic textures points to a 3D universality class with a correlation length that diverges near Tc. Meanwhile, the temperature-dependent spin dynamics, measured through all optical relaxometry suggest that the phase transition is in the XY universality class. Our results capture both static and dynamic aspects of critical behavior, providing insights into universal properties that govern phase transitions in magnetic materials.",

keywords = "NV center, Quantum sensing, Relaxometry",

author = "Wu, {Yueh Chun} and Hal{\'a}sz, {G{\'a}bor B.} and Damron, {Joshua T.} and Zheng Gai and Huan Zhao and Yuxin Sun and Dahmen, {Karin A.} and Changhee Sohn and Carlson, {Erica W.} and Chengyun Hua and Shan Lin and Jeongkeun Song and Lee, {Ho Nyung} and Lawrie, {Benjamin J.}",

note = "Publisher Copyright: {\textcopyright} 2025 American Chemical Society.",

year = "2025",

month = jan,

day = "29",

doi = "10.1021/acs.nanolett.4c05401",

language = "English",

volume = "25",

pages = "1473--1479",

journal = "Nano Letters",

issn = "1530-6984",

publisher = "American Chemical Society",

number = "4",

}

TY - JOUR

T1 - Nanoscale Magnetic Ordering Dynamics in a High Curie Temperature Ferromagnet

AU - Wu, Yueh Chun

AU - Halász, Gábor B.

AU - Damron, Joshua T.

AU - Gai, Zheng

AU - Zhao, Huan

AU - Sun, Yuxin

AU - Dahmen, Karin A.

AU - Sohn, Changhee

AU - Carlson, Erica W.

AU - Hua, Chengyun

AU - Lin, Shan

AU - Song, Jeongkeun

AU - Lee, Ho Nyung

AU - Lawrie, Benjamin J.

PY - 2025/1/29

Y1 - 2025/1/29

N2 - Thermally driven transitions between ferromagnetic and paramagnetic phases are characterized by critical behavior with divergent susceptibilities, long-range correlations, and spin dynamics that can span kHz to GHz scales as the material approaches the critical temperature Tc, but it has proven technically challenging to probe the relevant length and time scales with most conventional measurement techniques. In this study, we employ scanning nitrogen-vacancy center based magnetometry and relaxometry to reveal the critical behavior of a high-Tc ferromagnetic oxide near its Curie temperature. Cluster analysis of the measured temperature-dependent nanoscale magnetic textures points to a 3D universality class with a correlation length that diverges near Tc. Meanwhile, the temperature-dependent spin dynamics, measured through all optical relaxometry suggest that the phase transition is in the XY universality class. Our results capture both static and dynamic aspects of critical behavior, providing insights into universal properties that govern phase transitions in magnetic materials.

AB - Thermally driven transitions between ferromagnetic and paramagnetic phases are characterized by critical behavior with divergent susceptibilities, long-range correlations, and spin dynamics that can span kHz to GHz scales as the material approaches the critical temperature Tc, but it has proven technically challenging to probe the relevant length and time scales with most conventional measurement techniques. In this study, we employ scanning nitrogen-vacancy center based magnetometry and relaxometry to reveal the critical behavior of a high-Tc ferromagnetic oxide near its Curie temperature. Cluster analysis of the measured temperature-dependent nanoscale magnetic textures points to a 3D universality class with a correlation length that diverges near Tc. Meanwhile, the temperature-dependent spin dynamics, measured through all optical relaxometry suggest that the phase transition is in the XY universality class. Our results capture both static and dynamic aspects of critical behavior, providing insights into universal properties that govern phase transitions in magnetic materials.

KW - NV center

KW - Quantum sensing

KW - Relaxometry

UR - http://www.scopus.com/inward/record.url?scp=85215839609&partnerID=8YFLogxK

U2 - 10.1021/acs.nanolett.4c05401

DO - 10.1021/acs.nanolett.4c05401

M3 - Article

C2 - 39804711

AN - SCOPUS:85215839609

SN - 1530-6984

VL - 25

SP - 1473

EP - 1479

JO - Nano Letters

JF - Nano Letters

IS - 4

ER -

Nanoscale Magnetic Ordering Dynamics in a High Curie Temperature Ferromagnet

Abstract

Funding

Keywords

Access to Document

Other files and links

Fingerprint

Cite this