Separation of energy scales in the kagome antiferromagnet TmAgGe: A magnetic-field-orientation study up to 55 T
TmAgGe is an antiferromagnet in which the spins are confined to distorted kagome-like planes at low temperatures. We report angle-dependent measurements of the magnetization M in fields of up to 55 T that show that there are two distinct and separate energy scales present in TmAgGe, each responsible...
| Main Authors: | , , , , , , |
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| פורמט: | Journal article |
| שפה: | English |
| יצא לאור: |
2007
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| _version_ | 1826276542475403264 |
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| author | Goddard, P Singleton, J Sharma, A Morosan, E Blundell, S Bud'ko, S Canfield, P |
| author_facet | Goddard, P Singleton, J Sharma, A Morosan, E Blundell, S Bud'ko, S Canfield, P |
| author_sort | Goddard, P |
| collection | OXFORD |
| description | TmAgGe is an antiferromagnet in which the spins are confined to distorted kagome-like planes at low temperatures. We report angle-dependent measurements of the magnetization M in fields of up to 55 T that show that there are two distinct and separate energy scales present in TmAgGe, each responsible for a set of step-like metamagnetic transitions: weak exchange interactions and strong crystalline-electric-field (CEF) interactions. Simulations of M using a three-dimensional, free-energy minimization technique allow us to specify the physical origin of the metamagnetic transitions in low, in-plane fields. We also show that the transitions observed with the field perpendicular to the kagome planes are associated with the CEF-split multiplet of Tm. © 2007 The American Physical Society. |
| first_indexed | 2024-03-06T23:15:32Z |
| format | Journal article |
| id | oxford-uuid:66ff72db-3290-42fb-ba9d-c9be6d302ad3 |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-06T23:15:32Z |
| publishDate | 2007 |
| record_format | dspace |
| spelling | oxford-uuid:66ff72db-3290-42fb-ba9d-c9be6d302ad32022-03-26T18:35:22ZSeparation of energy scales in the kagome antiferromagnet TmAgGe: A magnetic-field-orientation study up to 55 TJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:66ff72db-3290-42fb-ba9d-c9be6d302ad3EnglishSymplectic Elements at Oxford2007Goddard, PSingleton, JSharma, AMorosan, EBlundell, SBud'ko, SCanfield, PTmAgGe is an antiferromagnet in which the spins are confined to distorted kagome-like planes at low temperatures. We report angle-dependent measurements of the magnetization M in fields of up to 55 T that show that there are two distinct and separate energy scales present in TmAgGe, each responsible for a set of step-like metamagnetic transitions: weak exchange interactions and strong crystalline-electric-field (CEF) interactions. Simulations of M using a three-dimensional, free-energy minimization technique allow us to specify the physical origin of the metamagnetic transitions in low, in-plane fields. We also show that the transitions observed with the field perpendicular to the kagome planes are associated with the CEF-split multiplet of Tm. © 2007 The American Physical Society. |
| spellingShingle | Goddard, P Singleton, J Sharma, A Morosan, E Blundell, S Bud'ko, S Canfield, P Separation of energy scales in the kagome antiferromagnet TmAgGe: A magnetic-field-orientation study up to 55 T |
| title | Separation of energy scales in the kagome antiferromagnet TmAgGe: A magnetic-field-orientation study up to 55 T |
| title_full | Separation of energy scales in the kagome antiferromagnet TmAgGe: A magnetic-field-orientation study up to 55 T |
| title_fullStr | Separation of energy scales in the kagome antiferromagnet TmAgGe: A magnetic-field-orientation study up to 55 T |
| title_full_unstemmed | Separation of energy scales in the kagome antiferromagnet TmAgGe: A magnetic-field-orientation study up to 55 T |
| title_short | Separation of energy scales in the kagome antiferromagnet TmAgGe: A magnetic-field-orientation study up to 55 T |
| title_sort | separation of energy scales in the kagome antiferromagnet tmagge a magnetic field orientation study up to 55 t |
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