Temperature and doping-level dependence of magnetic order in La2-xSrxNiO4+delta studied by muon spin rotation
We report muon-spin-rotation (μSR) measurements on a series of compounds with composition La2-xSrxNiO4+δ with strontium doping level x between 0 and 1. A magnetic transition is found in all the samples studied, which occurs at a composition-dependent temperature, TM. Below TM clear precession signal...
| প্রধান লেখক: | , , , , , , , , |
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| বিন্যাস: | Journal article |
| ভাষা: | English |
| প্রকাশিত: |
1999
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| _version_ | 1826256980476428288 |
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| author | Jestadt, T Chow, K Blundell, S Hayes, W Pratt, F Lovett, B Green, M Millburn, J Rosseinsky, M |
| author_facet | Jestadt, T Chow, K Blundell, S Hayes, W Pratt, F Lovett, B Green, M Millburn, J Rosseinsky, M |
| author_sort | Jestadt, T |
| collection | OXFORD |
| description | We report muon-spin-rotation (μSR) measurements on a series of compounds with composition La2-xSrxNiO4+δ with strontium doping level x between 0 and 1. A magnetic transition is found in all the samples studied, which occurs at a composition-dependent temperature, TM. Below TM clear precession signals are observed in zero applied magnetic field for all x, indicating the existence of at least short-range magnetic order on a time scale longer than 10-8 s. Above TM the magnetic correlation times decrease by several orders of magnitude. At x≈0.33, we find peaks in both TM and the zero-temperature staggered magnetization, an observation which we attribute to the higher degree of localization of the holes at this doping level. The measurements of TM as a function of x extend the determination of Néel temperatures by previous neutron diffraction and μSR measurements. © 1999 The American Physical Society. |
| first_indexed | 2024-03-06T18:10:53Z |
| format | Journal article |
| id | oxford-uuid:02fb8384-89b4-4d2f-a839-e69e6a68a042 |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-06T18:10:53Z |
| publishDate | 1999 |
| record_format | dspace |
| spelling | oxford-uuid:02fb8384-89b4-4d2f-a839-e69e6a68a0422022-03-26T08:43:41ZTemperature and doping-level dependence of magnetic order in La2-xSrxNiO4+delta studied by muon spin rotationJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:02fb8384-89b4-4d2f-a839-e69e6a68a042EnglishSymplectic Elements at Oxford1999Jestadt, TChow, KBlundell, SHayes, WPratt, FLovett, BGreen, MMillburn, JRosseinsky, MWe report muon-spin-rotation (μSR) measurements on a series of compounds with composition La2-xSrxNiO4+δ with strontium doping level x between 0 and 1. A magnetic transition is found in all the samples studied, which occurs at a composition-dependent temperature, TM. Below TM clear precession signals are observed in zero applied magnetic field for all x, indicating the existence of at least short-range magnetic order on a time scale longer than 10-8 s. Above TM the magnetic correlation times decrease by several orders of magnitude. At x≈0.33, we find peaks in both TM and the zero-temperature staggered magnetization, an observation which we attribute to the higher degree of localization of the holes at this doping level. The measurements of TM as a function of x extend the determination of Néel temperatures by previous neutron diffraction and μSR measurements. © 1999 The American Physical Society. |
| spellingShingle | Jestadt, T Chow, K Blundell, S Hayes, W Pratt, F Lovett, B Green, M Millburn, J Rosseinsky, M Temperature and doping-level dependence of magnetic order in La2-xSrxNiO4+delta studied by muon spin rotation |
| title | Temperature and doping-level dependence of magnetic order in La2-xSrxNiO4+delta studied by muon spin rotation |
| title_full | Temperature and doping-level dependence of magnetic order in La2-xSrxNiO4+delta studied by muon spin rotation |
| title_fullStr | Temperature and doping-level dependence of magnetic order in La2-xSrxNiO4+delta studied by muon spin rotation |
| title_full_unstemmed | Temperature and doping-level dependence of magnetic order in La2-xSrxNiO4+delta studied by muon spin rotation |
| title_short | Temperature and doping-level dependence of magnetic order in La2-xSrxNiO4+delta studied by muon spin rotation |
| title_sort | temperature and doping level dependence of magnetic order in la2 xsrxnio4 delta studied by muon spin rotation |
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