Field-induced avalanche to the ferromagnetic state in the phase-separated ground state of manganites

F. M. Woodward; J. W. Lynn; M. B. Stone; R. Mahendiran; P. Schiffer; J. F. Mitchell; D. N. Argyriou; L. C. Chapon

doi:10.1103/PhysRevB.70.174433

Field-induced avalanche to the ferromagnetic state in the phase-separated ground state of manganites

F. M. Woodward, J. W. Lynn, M. B. Stone, R. Mahendiran, P. Schiffer, J. F. Mitchell, D. N. Argyriou, L. C. Chapon

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

33 Scopus citations

Abstract

Perovskite manganite compounds such as Pr_1-x(Ca _1-ySr_y)_xMnO₃ can be tuned to exhibit a metastable ground state where two magnetic/crystallographic phases coexist in zero magnetic field. Field-dependent neutron diffraction measurements on both poly- and single-crystal samples with a range of Pr, Ca, and Sr dopings (0.3 ≤ x ≤ 0.35 and γ ≤ 0.30) reveal that the charge ordered, antiferromagnetic phase of the ground state suddenly and irreversibly jumps to the ferromagnetic state. The transition occurs spontaneously at some time after the field is set above a threshold field, indicating that once the transition is initiated an avalanche occurs that drives it to completion.

Original language	English (US)
Article number	174433
Pages (from-to)	1-6
Number of pages	6
Journal	Physical Review B - Condensed Matter and Materials Physics
Volume	70
Issue number	17
DOIs	https://doi.org/10.1103/PhysRevB.70.174433
State	Published - Nov 2004
Externally published	Yes

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

Access to Document

10.1103/PhysRevB.70.174433

Cite this

@article{e005a9e9093a4f59b96c58bd9ac8557c,

title = "Field-induced avalanche to the ferromagnetic state in the phase-separated ground state of manganites",

abstract = "Perovskite manganite compounds such as Pr1-x(Ca 1-ySry)xMnO3 can be tuned to exhibit a metastable ground state where two magnetic/crystallographic phases coexist in zero magnetic field. Field-dependent neutron diffraction measurements on both poly- and single-crystal samples with a range of Pr, Ca, and Sr dopings (0.3 ≤ x ≤ 0.35 and γ ≤ 0.30) reveal that the charge ordered, antiferromagnetic phase of the ground state suddenly and irreversibly jumps to the ferromagnetic state. The transition occurs spontaneously at some time after the field is set above a threshold field, indicating that once the transition is initiated an avalanche occurs that drives it to completion.",

author = "Woodward, {F. M.} and Lynn, {J. W.} and Stone, {M. B.} and R. Mahendiran and P. Schiffer and Mitchell, {J. F.} and Argyriou, {D. N.} and Chapon, {L. C.}",

note = "Funding Information: This research was performed while F. M. Woodward held a National Research Council Research Associateship Award at the NIST Center for Neutron Research. This work was supported in part by the U.S. Department of Energy, Office of Science, under Contract No. W-31-109-ENG-38. Work at Penn State was funded by NSF Grant No. DMR-01-01318.",

year = "2004",

month = nov,

doi = "10.1103/PhysRevB.70.174433",

language = "English (US)",

volume = "70",

pages = "1--6",

journal = "Physical Review B - Condensed Matter and Materials Physics",

issn = "0163-1829",

publisher = "American Physical Society",

number = "17",

}

TY - JOUR

T1 - Field-induced avalanche to the ferromagnetic state in the phase-separated ground state of manganites

AU - Woodward, F. M.

AU - Lynn, J. W.

AU - Stone, M. B.

AU - Mahendiran, R.

AU - Schiffer, P.

AU - Mitchell, J. F.

AU - Argyriou, D. N.

AU - Chapon, L. C.

N1 - Funding Information: This research was performed while F. M. Woodward held a National Research Council Research Associateship Award at the NIST Center for Neutron Research. This work was supported in part by the U.S. Department of Energy, Office of Science, under Contract No. W-31-109-ENG-38. Work at Penn State was funded by NSF Grant No. DMR-01-01318.

PY - 2004/11

Y1 - 2004/11

N2 - Perovskite manganite compounds such as Pr1-x(Ca 1-ySry)xMnO3 can be tuned to exhibit a metastable ground state where two magnetic/crystallographic phases coexist in zero magnetic field. Field-dependent neutron diffraction measurements on both poly- and single-crystal samples with a range of Pr, Ca, and Sr dopings (0.3 ≤ x ≤ 0.35 and γ ≤ 0.30) reveal that the charge ordered, antiferromagnetic phase of the ground state suddenly and irreversibly jumps to the ferromagnetic state. The transition occurs spontaneously at some time after the field is set above a threshold field, indicating that once the transition is initiated an avalanche occurs that drives it to completion.

AB - Perovskite manganite compounds such as Pr1-x(Ca 1-ySry)xMnO3 can be tuned to exhibit a metastable ground state where two magnetic/crystallographic phases coexist in zero magnetic field. Field-dependent neutron diffraction measurements on both poly- and single-crystal samples with a range of Pr, Ca, and Sr dopings (0.3 ≤ x ≤ 0.35 and γ ≤ 0.30) reveal that the charge ordered, antiferromagnetic phase of the ground state suddenly and irreversibly jumps to the ferromagnetic state. The transition occurs spontaneously at some time after the field is set above a threshold field, indicating that once the transition is initiated an avalanche occurs that drives it to completion.

UR - http://www.scopus.com/inward/record.url?scp=12244297141&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=12244297141&partnerID=8YFLogxK

U2 - 10.1103/PhysRevB.70.174433

DO - 10.1103/PhysRevB.70.174433

M3 - Article

AN - SCOPUS:12244297141

SN - 0163-1829

VL - 70

SP - 1

EP - 6

JO - Physical Review B - Condensed Matter and Materials Physics

JF - Physical Review B - Condensed Matter and Materials Physics

IS - 17

M1 - 174433

ER -

Field-induced avalanche to the ferromagnetic state in the phase-separated ground state of manganites

Abstract

All Science Journal Classification (ASJC) codes

Access to Document

Other files and links

Fingerprint

Cite this