Pressure effects on the charge-ordering state in Sm0.2Ca0.8Mn1-xRuxO3 (x=0,0.04)

V. Markovich; E. Rozenberg; G. Gorodetsky; C. Martin; A. Maignan; M. Hervieu; B. Raveau

Pressure effects on the charge-ordering state in Sm_0.2Ca_0.8Mn_1-xRu_xO₃ (x=0,0.04)

V. Markovich
, E. Rozenberg
, G. Gorodetsky
, C. Martin
, A. Maignan
, M. Hervieu
, B. Raveau

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

13 Scopus citations

Abstract

Transport properties of Sm_0.2Ca_0.8Mn_1-xRu_xO₃ (x=0,0.04) have been investigated in the temperature range 15-300 K in external magnetic fields up to 1.5 T and hydrostatic pressure up to 1 GPa. The 4% Ru doping in Mn site converts the low-temperature robust orbital ordered phase observed in the undoped compound to a two-phase (ferromagnetic and charge ordered) ground state. As a result of such doping (phase-separated ground state), colossal magnetoresistance, slow relaxation of resistivity with logarithmic time dependence, and prehistory effects that are enhanced by pressure are observed in Sm_0.2Ca_0.8Mn_0.96 Ru_0.04O₃. In contrast, the above effects are absent in Sm_0.2Ca_0.8MnO₃.

Original language	English
Article number	224410
Pages (from-to)	2244101-2244105
Number of pages	5
Journal	Physical Review B - Condensed Matter and Materials Physics
Volume	64
Issue number	22
State	Published - 1 Dec 2001
Externally published	Yes

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

Cite this

@article{a8fa8ea641d34004b10a92c795046fb9,

title = "Pressure effects on the charge-ordering state in Sm0.2Ca0.8Mn1-xRuxO3 (x=0,0.04)",

abstract = "Transport properties of Sm0.2Ca0.8Mn1-xRuxO3 (x=0,0.04) have been investigated in the temperature range 15-300 K in external magnetic fields up to 1.5 T and hydrostatic pressure up to 1 GPa. The 4\% Ru doping in Mn site converts the low-temperature robust orbital ordered phase observed in the undoped compound to a two-phase (ferromagnetic and charge ordered) ground state. As a result of such doping (phase-separated ground state), colossal magnetoresistance, slow relaxation of resistivity with logarithmic time dependence, and prehistory effects that are enhanced by pressure are observed in Sm0.2Ca0.8Mn0.96 Ru0.04O3. In contrast, the above effects are absent in Sm0.2Ca0.8MnO3.",

author = "V. Markovich and E. Rozenberg and G. Gorodetsky and C. Martin and A. Maignan and M. Hervieu and B. Raveau",

year = "2001",

month = dec,

day = "1",

language = "English",

volume = "64",

pages = "2244101--2244105",

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

issn = "0163-1829",

publisher = "American Physical Society",

number = "22",

}

TY - JOUR

T1 - Pressure effects on the charge-ordering state in Sm0.2Ca0.8Mn1-xRuxO3 (x=0,0.04)

AU - Markovich, V.

AU - Rozenberg, E.

AU - Gorodetsky, G.

AU - Martin, C.

AU - Maignan, A.

AU - Hervieu, M.

AU - Raveau, B.

PY - 2001/12/1

Y1 - 2001/12/1

N2 - Transport properties of Sm0.2Ca0.8Mn1-xRuxO3 (x=0,0.04) have been investigated in the temperature range 15-300 K in external magnetic fields up to 1.5 T and hydrostatic pressure up to 1 GPa. The 4% Ru doping in Mn site converts the low-temperature robust orbital ordered phase observed in the undoped compound to a two-phase (ferromagnetic and charge ordered) ground state. As a result of such doping (phase-separated ground state), colossal magnetoresistance, slow relaxation of resistivity with logarithmic time dependence, and prehistory effects that are enhanced by pressure are observed in Sm0.2Ca0.8Mn0.96 Ru0.04O3. In contrast, the above effects are absent in Sm0.2Ca0.8MnO3.

AB - Transport properties of Sm0.2Ca0.8Mn1-xRuxO3 (x=0,0.04) have been investigated in the temperature range 15-300 K in external magnetic fields up to 1.5 T and hydrostatic pressure up to 1 GPa. The 4% Ru doping in Mn site converts the low-temperature robust orbital ordered phase observed in the undoped compound to a two-phase (ferromagnetic and charge ordered) ground state. As a result of such doping (phase-separated ground state), colossal magnetoresistance, slow relaxation of resistivity with logarithmic time dependence, and prehistory effects that are enhanced by pressure are observed in Sm0.2Ca0.8Mn0.96 Ru0.04O3. In contrast, the above effects are absent in Sm0.2Ca0.8MnO3.

UR - https://www.scopus.com/pages/publications/0035587091

M3 - Article

AN - SCOPUS:0035587091

SN - 0163-1829

VL - 64

SP - 2244101

EP - 2244105

JO - Physical Review B - Condensed Matter and Materials Physics

JF - Physical Review B - Condensed Matter and Materials Physics

IS - 22

M1 - 224410

ER -

Pressure effects on the charge-ordering state in Sm_0.2Ca_0.8Mn_1-xRu_xO₃ (x=0,0.04)

Abstract

ASJC Scopus subject areas

Other files and links

Fingerprint

Cite this