Effect of dimensionality on the magnetic properties of Ruddlesden-Popper manganites

A  Husmann; S J Blundell; T  Jestädt; Brendon W Lovett; I M Marshall; F L Pratt; L E Spring; P D Battle; M J Rosseinsky

doi:10.1016/S0921-4526(00)00264-7

Effect of dimensionality on the magnetic properties of Ruddlesden-Popper manganites

A Husmann, S J Blundell, T Jestädt, Brendon W Lovett, I M Marshall, F L Pratt, L E Spring, P D Battle, M J Rosseinsky

School of Engineering & Physical Sciences

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

4 Citations (Scopus)

Abstract

We have measured the muon-spin rt laxation (mu SR) in La0.6Sr0.4MnO3 and in its layered sister system La1.2Sr1.8Mn2O7 to study the influence of dimensionality on their magnetic properties. Both compounds show ferromagnetic ordering with decreasing temperature. Above their Curie temperatures we followed the spin fluctuations. While the electron spin fluctuations in the three-dimensional La0.6Sr0.4MnO3 slow down critically as the transition temperature is approached they remain finite in the layered material La1.2Sr1.8Mn2O7. We can fit them to 2D critical behaviour with a lower T-C. In addition, we observe a spin precession signal in the ferromagnetically ordered state in La1.2Sr1.8Mn2O7; the temperature dependence of the muon precession frequency is in agreement with a three-dimensional character of the ordering. (C) 2000 Published by Elsevier Science B.V. Ail rights reserved.

Original language	English
Pages (from-to)	69-72
Number of pages	4
Journal	Physica B: Condensed Matter
Volume	289-290
DOIs	https://doi.org/10.1016/S0921-4526(00)00264-7
Publication status	Published - Aug 2000

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title = "Effect of dimensionality on the magnetic properties of Ruddlesden-Popper manganites",

abstract = "We have measured the muon-spin rt laxation (mu SR) in La0.6Sr0.4MnO3 and in its layered sister system La1.2Sr1.8Mn2O7 to study the influence of dimensionality on their magnetic properties. Both compounds show ferromagnetic ordering with decreasing temperature. Above their Curie temperatures we followed the spin fluctuations. While the electron spin fluctuations in the three-dimensional La0.6Sr0.4MnO3 slow down critically as the transition temperature is approached they remain finite in the layered material La1.2Sr1.8Mn2O7. We can fit them to 2D critical behaviour with a lower T-C. In addition, we observe a spin precession signal in the ferromagnetically ordered state in La1.2Sr1.8Mn2O7; the temperature dependence of the muon precession frequency is in agreement with a three-dimensional character of the ordering. (C) 2000 Published by Elsevier Science B.V. Ail rights reserved.",

author = "A Husmann and Blundell, {S J} and T Jest{\"a}dt and Lovett, {Brendon W} and Marshall, {I M} and Pratt, {F L} and Spring, {L E} and Battle, {P D} and Rosseinsky, {M J}",

year = "2000",

month = aug,

doi = "10.1016/S0921-4526(00)00264-7",

language = "English",

volume = "289-290",

pages = "69--72",

journal = "Physica B: Condensed Matter",

issn = "0921-4526",

publisher = "Elsevier",

}

TY - JOUR

T1 - Effect of dimensionality on the magnetic properties of Ruddlesden-Popper manganites

AU - Husmann, A

AU - Blundell, S J

AU - Jestädt, T

AU - Lovett, Brendon W

AU - Marshall, I M

AU - Pratt, F L

AU - Spring, L E

AU - Battle, P D

AU - Rosseinsky, M J

PY - 2000/8

Y1 - 2000/8

N2 - We have measured the muon-spin rt laxation (mu SR) in La0.6Sr0.4MnO3 and in its layered sister system La1.2Sr1.8Mn2O7 to study the influence of dimensionality on their magnetic properties. Both compounds show ferromagnetic ordering with decreasing temperature. Above their Curie temperatures we followed the spin fluctuations. While the electron spin fluctuations in the three-dimensional La0.6Sr0.4MnO3 slow down critically as the transition temperature is approached they remain finite in the layered material La1.2Sr1.8Mn2O7. We can fit them to 2D critical behaviour with a lower T-C. In addition, we observe a spin precession signal in the ferromagnetically ordered state in La1.2Sr1.8Mn2O7; the temperature dependence of the muon precession frequency is in agreement with a three-dimensional character of the ordering. (C) 2000 Published by Elsevier Science B.V. Ail rights reserved.

AB - We have measured the muon-spin rt laxation (mu SR) in La0.6Sr0.4MnO3 and in its layered sister system La1.2Sr1.8Mn2O7 to study the influence of dimensionality on their magnetic properties. Both compounds show ferromagnetic ordering with decreasing temperature. Above their Curie temperatures we followed the spin fluctuations. While the electron spin fluctuations in the three-dimensional La0.6Sr0.4MnO3 slow down critically as the transition temperature is approached they remain finite in the layered material La1.2Sr1.8Mn2O7. We can fit them to 2D critical behaviour with a lower T-C. In addition, we observe a spin precession signal in the ferromagnetically ordered state in La1.2Sr1.8Mn2O7; the temperature dependence of the muon precession frequency is in agreement with a three-dimensional character of the ordering. (C) 2000 Published by Elsevier Science B.V. Ail rights reserved.

U2 - 10.1016/S0921-4526(00)00264-7

DO - 10.1016/S0921-4526(00)00264-7

M3 - Article

SN - 0921-4526

VL - 289-290

SP - 69

EP - 72

JO - Physica B: Condensed Matter

JF - Physica B: Condensed Matter

ER -

Effect of dimensionality on the magnetic properties of Ruddlesden-Popper manganites

Abstract

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