Field-induced segregation of ferromagnetic nanodomains in Pr0.5Sr0.5MnO3 detected by 55Mn NMR

G  Allodi; R  De Renzi; M  Solzi; K  Kamenev; G  Balakrishnan; M W  Pieper

Field-induced segregation of ferromagnetic nanodomains in Pr_0.5Sr_0.5MnO₃ detected by ⁵⁵Mn NMR

G Allodi, R De Renzi, M Solzi, K Kamenev, G Balakrishnan, M W Pieper

School of Engineering

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

Abstract

The antiferromagnetic manganite Pr0.5Sr0.5-MnO3 was investigated at low temperature by means of magnetometry and Mn-55 NMR. A field-induced transition to a ferromagnetic state is detected by magnetization measurements at a threshold field of a few tesla. NMR shows that the ferromagnetic phase develops from zero field by the nucleation of microscopic ferromagnetic domains, consisting of an inhomogeneous mixture of tilted and fully aligned parts. At the threshold the NMR spectrum changes discontinuously into that of a homogeneous, fully aligned, ferromagnetic state, suggesting a percolative origin for the ferromagnetic transition.

Original language	English
Pages (from-to)	5924-5927
Number of pages	4
Journal	Physical review B
Volume	61
Issue number	9
Publication status	Published - 1 Mar 2000

Keywords / Materials (for Non-textual outputs)

DOUBLE-EXCHANGE
CHARGE
LA0.5CA0.5MNO3
LA1-XSRXMNO3
MANGANITES
LA1-XCAXMNO3+Y
RESISTIVITY
TRANSITION
LA-139
PHASE

Cite this

@article{0073c8ee9e83470c93be3c03bd04049c,

title = "Field-induced segregation of ferromagnetic nanodomains in Pr0.5Sr0.5MnO3 detected by 55Mn NMR",

abstract = "The antiferromagnetic manganite Pr0.5Sr0.5-MnO3 was investigated at low temperature by means of magnetometry and Mn-55 NMR. A field-induced transition to a ferromagnetic state is detected by magnetization measurements at a threshold field of a few tesla. NMR shows that the ferromagnetic phase develops from zero field by the nucleation of microscopic ferromagnetic domains, consisting of an inhomogeneous mixture of tilted and fully aligned parts. At the threshold the NMR spectrum changes discontinuously into that of a homogeneous, fully aligned, ferromagnetic state, suggesting a percolative origin for the ferromagnetic transition.",

keywords = "DOUBLE-EXCHANGE, CHARGE, LA0.5CA0.5MNO3, LA1-XSRXMNO3, MANGANITES, LA1-XCAXMNO3+Y, RESISTIVITY, TRANSITION, LA-139, PHASE",

author = "G Allodi and {De Renzi}, R and M Solzi and K Kamenev and G Balakrishnan and Pieper, {M W}",

year = "2000",

month = mar,

day = "1",

language = "English",

volume = "61",

pages = "5924--5927",

journal = "Physical review B",

issn = "1098-0121",

publisher = "American Physical Society",

number = "9",

}

TY - JOUR

T1 - Field-induced segregation of ferromagnetic nanodomains in Pr0.5Sr0.5MnO3 detected by 55Mn NMR

AU - Allodi, G

AU - De Renzi, R

AU - Solzi, M

AU - Kamenev, K

AU - Balakrishnan, G

AU - Pieper, M W

PY - 2000/3/1

Y1 - 2000/3/1

N2 - The antiferromagnetic manganite Pr0.5Sr0.5-MnO3 was investigated at low temperature by means of magnetometry and Mn-55 NMR. A field-induced transition to a ferromagnetic state is detected by magnetization measurements at a threshold field of a few tesla. NMR shows that the ferromagnetic phase develops from zero field by the nucleation of microscopic ferromagnetic domains, consisting of an inhomogeneous mixture of tilted and fully aligned parts. At the threshold the NMR spectrum changes discontinuously into that of a homogeneous, fully aligned, ferromagnetic state, suggesting a percolative origin for the ferromagnetic transition.

AB - The antiferromagnetic manganite Pr0.5Sr0.5-MnO3 was investigated at low temperature by means of magnetometry and Mn-55 NMR. A field-induced transition to a ferromagnetic state is detected by magnetization measurements at a threshold field of a few tesla. NMR shows that the ferromagnetic phase develops from zero field by the nucleation of microscopic ferromagnetic domains, consisting of an inhomogeneous mixture of tilted and fully aligned parts. At the threshold the NMR spectrum changes discontinuously into that of a homogeneous, fully aligned, ferromagnetic state, suggesting a percolative origin for the ferromagnetic transition.

KW - DOUBLE-EXCHANGE

KW - CHARGE

KW - LA0.5CA0.5MNO3

KW - LA1-XSRXMNO3

KW - MANGANITES

KW - LA1-XCAXMNO3+Y

KW - RESISTIVITY

KW - TRANSITION

KW - LA-139

KW - PHASE

M3 - Article

SN - 1098-0121

VL - 61

SP - 5924

EP - 5927

JO - Physical review B

JF - Physical review B

IS - 9

ER -

Field-induced segregation of ferromagnetic nanodomains in Pr0.5Sr0.5MnO3 detected by 55Mn NMR

Abstract

Keywords / Materials (for Non-textual outputs)

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Cite this

Field-induced segregation of ferromagnetic nanodomains in Pr_0.5Sr_0.5MnO₃ detected by ⁵⁵Mn NMR