Transitions in Sr2RuxIr1-xO4 compounds studied by the 99Ru mössbauer effect

Michael De Marco; David Graf; Job Rijssenbeek; R. J. Cava; D. Z. Wang; Y. Tu; Z. F. Ren; J. H. Wang; Michael Haka; Steve Toorongian; Michael J. Leone; Michael J. Naughton

doi:10.1103/PhysRevB.60.7570

Transitions in Sr₂Ru_xIr_1-xO₄ compounds studied by the ⁹⁹Ru mössbauer effect

Michael De Marco, David Graf, Job Rijssenbeek, R. J. Cava, D. Z. Wang, Y. Tu, Z. F. Ren, J. H. Wang, Michael Haka, Steve Toorongian, Michael J. Leone, Michael J. Naughton

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Abstract

The ⁹⁹Ru Mössbauer effect has been measured in the Sr₂Ru_xIr_1-xO₄ system for x = 1.0, 0.7, 0.5, and 0.4 at 4.2 K. The isomer shift measurements show a change of -0.05(.02) mm/s as the compound changes from a metal (x = 0.7) to an insulator (x = 0.5). This isomer shift change is the electronic signature of the metal-insulator transition. All these spectra are single line. At x = 0.4 the compound undergoes a magnetic phase transition with the measurement of a hyperfine magnetic field of 7.2(1.5) T. The ⁹⁹Ru Mössbauer effect has been measured from 1.8 to 147.5 K for Sr₂RuO₄ and from these measurements the Debye temperature was estimated to be 427(50) K.

Original language	English (US)
Pages (from-to)	7570-7574
Number of pages	5
Journal	Physical Review B - Condensed Matter and Materials Physics
Volume	60
Issue number	10
DOIs	https://doi.org/10.1103/PhysRevB.60.7570
State	Published - 1999

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

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@article{edc0031bb0664344a257de5377ad039f,

title = "Transitions in Sr2RuxIr1-xO4 compounds studied by the 99Ru m{\"o}ssbauer effect",

abstract = "The 99Ru M{\"o}ssbauer effect has been measured in the Sr2RuxIr1-xO4 system for x = 1.0, 0.7, 0.5, and 0.4 at 4.2 K. The isomer shift measurements show a change of -0.05(.02) mm/s as the compound changes from a metal (x = 0.7) to an insulator (x = 0.5). This isomer shift change is the electronic signature of the metal-insulator transition. All these spectra are single line. At x = 0.4 the compound undergoes a magnetic phase transition with the measurement of a hyperfine magnetic field of 7.2(1.5) T. The 99Ru M{\"o}ssbauer effect has been measured from 1.8 to 147.5 K for Sr2RuO4 and from these measurements the Debye temperature was estimated to be 427(50) K.",

author = "{De Marco}, Michael and David Graf and Job Rijssenbeek and Cava, {R. J.} and Wang, {D. Z.} and Y. Tu and Ren, {Z. F.} and Wang, {J. H.} and Michael Haka and Steve Toorongian and Leone, {Michael J.} and Naughton, {Michael J.}",

year = "1999",

doi = "10.1103/PhysRevB.60.7570",

language = "English (US)",

volume = "60",

pages = "7570--7574",

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

issn = "1098-0121",

publisher = "American Physical Society",

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T1 - Transitions in Sr2RuxIr1-xO4 compounds studied by the 99Ru mössbauer effect

AU - De Marco, Michael

AU - Graf, David

AU - Rijssenbeek, Job

AU - Cava, R. J.

AU - Wang, D. Z.

AU - Tu, Y.

AU - Ren, Z. F.

AU - Wang, J. H.

AU - Haka, Michael

AU - Toorongian, Steve

AU - Leone, Michael J.

AU - Naughton, Michael J.

PY - 1999

Y1 - 1999

N2 - The 99Ru Mössbauer effect has been measured in the Sr2RuxIr1-xO4 system for x = 1.0, 0.7, 0.5, and 0.4 at 4.2 K. The isomer shift measurements show a change of -0.05(.02) mm/s as the compound changes from a metal (x = 0.7) to an insulator (x = 0.5). This isomer shift change is the electronic signature of the metal-insulator transition. All these spectra are single line. At x = 0.4 the compound undergoes a magnetic phase transition with the measurement of a hyperfine magnetic field of 7.2(1.5) T. The 99Ru Mössbauer effect has been measured from 1.8 to 147.5 K for Sr2RuO4 and from these measurements the Debye temperature was estimated to be 427(50) K.

AB - The 99Ru Mössbauer effect has been measured in the Sr2RuxIr1-xO4 system for x = 1.0, 0.7, 0.5, and 0.4 at 4.2 K. The isomer shift measurements show a change of -0.05(.02) mm/s as the compound changes from a metal (x = 0.7) to an insulator (x = 0.5). This isomer shift change is the electronic signature of the metal-insulator transition. All these spectra are single line. At x = 0.4 the compound undergoes a magnetic phase transition with the measurement of a hyperfine magnetic field of 7.2(1.5) T. The 99Ru Mössbauer effect has been measured from 1.8 to 147.5 K for Sr2RuO4 and from these measurements the Debye temperature was estimated to be 427(50) K.

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DO - 10.1103/PhysRevB.60.7570

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EP - 7574

JO - Physical Review B - Condensed Matter and Materials Physics

JF - Physical Review B - Condensed Matter and Materials Physics

IS - 10

ER -

Transitions in Sr₂Ru_xIr_1-xO₄ compounds studied by the ⁹⁹Ru mössbauer effect

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