EMR probing of magnetic ordering in Pr1-xSrxMnO 3 ( x = 0.22, 0.24, 0.26) manganite single crystals

Alexander I. Shames; M. Auslender; E. Rozenberg; Ya M. Mukovskii; G. Gorodetsky

doi:10.1109/TMAG.2008.2001522

EMR probing of magnetic ordering in Pr_1-xSr_xMnO ₃ ( x = 0.22, 0.24, 0.26) manganite single crystals

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

4 Scopus citations

Abstract

To probe magnetic ordering in single crystals of _1-xSr _xMnO₃ ( x = 0.22, 0.24, 0.26), the X-band electron magnetic resonance(EMR) measurements were carried out in the temperature range 5 K ≤ T ≤ 600 K. It appears that two additional (as compared to well-known La_1-xCa_xMnO₃ system) factors influence on such ordering and on magnetic correlations in paramagnetic state. They are: low temperature ferromagnetic like order of Pr-subsystem and strong charge ordered state (CO). In particular, the competition of CO and ferromagnetic coupling results in suppression of EMR susceptibility at low temperatures, as well as in its notable deviation from the standard Curie-Weiss behavior in paramagnetic state. It is shown that the character of paramagnetic spin dynamics changes notably with Sr-doping, i.e., the higher doping-the stronger contribution of electron-impurity spin relaxation mechanism.

Original language	English
Pages (from-to)	2918-2921
Number of pages	4
Journal	IEEE Transactions on Magnetics
Volume	44
Issue number	11 PART 1
DOIs	https://doi.org/10.1109/TMAG.2008.2001522
State	Published - 1 Nov 2008
Externally published	Yes

Keywords

Magnetic ordering
Magnetic resonance
Manganese compounds

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Electrical and Electronic Engineering

Access to Document

10.1109/TMAG.2008.2001522

Cite this

@article{925e3b57c8634cfcaafa90a39c9ad757,

title = "EMR probing of magnetic ordering in Pr1-xSrxMnO 3 ( x = 0.22, 0.24, 0.26) manganite single crystals",

abstract = "To probe magnetic ordering in single crystals of 1-xSr xMnO3 ( x = 0.22, 0.24, 0.26), the X-band electron magnetic resonance(EMR) measurements were carried out in the temperature range 5 K ≤ T ≤ 600 K. It appears that two additional (as compared to well-known La1-xCaxMnO3 system) factors influence on such ordering and on magnetic correlations in paramagnetic state. They are: low temperature ferromagnetic like order of Pr-subsystem and strong charge ordered state (CO). In particular, the competition of CO and ferromagnetic coupling results in suppression of EMR susceptibility at low temperatures, as well as in its notable deviation from the standard Curie-Weiss behavior in paramagnetic state. It is shown that the character of paramagnetic spin dynamics changes notably with Sr-doping, i.e., the higher doping-the stronger contribution of electron-impurity spin relaxation mechanism.",

keywords = "Magnetic ordering, Magnetic resonance, Manganese compounds",

author = "Shames, \{Alexander I.\} and M. Auslender and E. Rozenberg and Mukovskii, \{Ya M.\} and G. Gorodetsky",

year = "2008",

month = nov,

day = "1",

doi = "10.1109/TMAG.2008.2001522",

language = "English",

volume = "44",

pages = "2918--2921",

journal = "IEEE Transactions on Magnetics",

issn = "0018-9464",

publisher = "Institute of Electrical and Electronics Engineers",

number = "11 PART 1",

}

TY - JOUR

T1 - EMR probing of magnetic ordering in Pr1-xSrxMnO 3 ( x = 0.22, 0.24, 0.26) manganite single crystals

AU - Shames, Alexander I.

AU - Auslender, M.

AU - Rozenberg, E.

AU - Mukovskii, Ya M.

AU - Gorodetsky, G.

PY - 2008/11/1

Y1 - 2008/11/1

N2 - To probe magnetic ordering in single crystals of 1-xSr xMnO3 ( x = 0.22, 0.24, 0.26), the X-band electron magnetic resonance(EMR) measurements were carried out in the temperature range 5 K ≤ T ≤ 600 K. It appears that two additional (as compared to well-known La1-xCaxMnO3 system) factors influence on such ordering and on magnetic correlations in paramagnetic state. They are: low temperature ferromagnetic like order of Pr-subsystem and strong charge ordered state (CO). In particular, the competition of CO and ferromagnetic coupling results in suppression of EMR susceptibility at low temperatures, as well as in its notable deviation from the standard Curie-Weiss behavior in paramagnetic state. It is shown that the character of paramagnetic spin dynamics changes notably with Sr-doping, i.e., the higher doping-the stronger contribution of electron-impurity spin relaxation mechanism.

AB - To probe magnetic ordering in single crystals of 1-xSr xMnO3 ( x = 0.22, 0.24, 0.26), the X-band electron magnetic resonance(EMR) measurements were carried out in the temperature range 5 K ≤ T ≤ 600 K. It appears that two additional (as compared to well-known La1-xCaxMnO3 system) factors influence on such ordering and on magnetic correlations in paramagnetic state. They are: low temperature ferromagnetic like order of Pr-subsystem and strong charge ordered state (CO). In particular, the competition of CO and ferromagnetic coupling results in suppression of EMR susceptibility at low temperatures, as well as in its notable deviation from the standard Curie-Weiss behavior in paramagnetic state. It is shown that the character of paramagnetic spin dynamics changes notably with Sr-doping, i.e., the higher doping-the stronger contribution of electron-impurity spin relaxation mechanism.

KW - Magnetic ordering

KW - Magnetic resonance

KW - Manganese compounds

UR - https://www.scopus.com/pages/publications/72449144844

U2 - 10.1109/TMAG.2008.2001522

DO - 10.1109/TMAG.2008.2001522

M3 - Article

AN - SCOPUS:72449144844

SN - 0018-9464

VL - 44

SP - 2918

EP - 2921

JO - IEEE Transactions on Magnetics

JF - IEEE Transactions on Magnetics

IS - 11 PART 1

ER -