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Abbie C. Mclaughlin - One of the best experts on this subject based on the ideXlab platform.
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Absence of Colossal Magnetoresistance in the Oxypnictide PrMnAsO0.95F0.05
Inorganic chemistry, 2015Co-Authors: Eve J. Wildman, Falak Sher, Abbie C. MclaughlinAbstract:We have recently reported a new mechanism of Colossal Magnetoresistance in electron doped Mn oxypnictides NdMnAsO1-xFx. Magnetoresistances of up to -95 percent at 3 K have been observed. Here we show that upon replacing Nd for Pr, the CMR is surprisingly no longer present. Instead a sizeable negative Magnetoresistance is observed for PrMnAsO0.95F0.05 below 35 K (MR7T (12 K) = -13.4 percent for PrMnAsO0.9F0.05. A detailed neutron and synchrotron X-ray diffraction study of PrMnAsO0.95F0.05 has been performed, which shows that a structural transition, Ts, occurs at 35 K from tetragonal P4/nmm to orthorhombic Pmmn symmetry. The structural transition is driven by the Pr 4f electrons degrees of freedom.
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Colossal Magnetoresistance in Mn2+ Oxypnictides NdMnAsO1–xFx
Journal of the American Chemical Society, 2012Co-Authors: Eve J. Wildman, Janet M. S. Skakle, Nicolas Emery, Abbie C. MclaughlinAbstract:Colossal Magnetoresistance is a rare phenomenon in which the electronic resistivity of a material can be decreased by orders of magnitude upon application of a magnetic field. Such an effect could ...
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Colossal Magnetoresistance in mn2 oxypnictides ndmnaso1 xfx
Journal of the American Chemical Society, 2012Co-Authors: Eve J. Wildman, Janet M. S. Skakle, Nicolas Emery, Abbie C. MclaughlinAbstract:Colossal Magnetoresistance is a rare phenomenon in which the electronic resistivity of a material can be decreased by orders of magnitude upon application of a magnetic field. Such an effect could ...
Hung-duen Yang - One of the best experts on this subject based on the ideXlab platform.
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Colossal electroresistance and Colossal Magnetoresistance in spinel multiferroic cdcr2s4
Applied Physics Letters, 2010Co-Authors: C. P. Sun, Chien-lung Huang, C. C. Lin, J. L. Her, Jiunn-yuan Lin, Helmuth Berger, Hung-duen YangAbstract:Colossal Magnetoresistance (CMR) and Colossal electroresistance (CER) induced by the electric field in spinel multiferroic CdCr2S4 are reported. It is found that a metal-insulator transition in CdCr2S4 is triggered by the electrical field. In magnetic fields, the resistivity ρ of CdCr2S4 responds similarly to that of CMR manganites. Combing previous reports, these findings make CdCr2S4 the unique compound to possess all four properties of the Colossal magnetocapacitive, Colossal electrocapacitive, CER, and CMR. The present results open a new venue for searching new materials to show CMR by tuning electric and magnetic fields.
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Colossal Electroresistance and Colossal Magnetoresistance in Spinel Multiferroic CdCr2S4
Applied Physics Letters, 2010Co-Authors: C. P. Sun, Chien-lung Huang, C. C. Lin, J. L. Her, Jiunn-yuan Lin, Helmuth Berger, Hung-duen YangAbstract:Colossal Magnetoresistance (CMR) and electroresistance (CER) induced by the electric field in spinel multiferroic CdCr2S4 are reported. It is found that a metal-insulator transition (MIT) in CdCr2S4 is triggered by the electrical field. In magnetic fields, the resistivity of CdCr2S4 responds similarly to that of CMR manganites. Combing previous reports, these findings make CdCr2S4 the unique compound to possess all four properties of the Colossal magnetocapacitive (CMC), Colossal electrocapacitive (CEC), CER, and CMR. The present results open a new venue for searching new materials to show CMR by tuning electric and magnetic fields.
Eve J. Wildman - One of the best experts on this subject based on the ideXlab platform.
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Absence of Colossal Magnetoresistance in the Oxypnictide PrMnAsO0.95F0.05
Inorganic chemistry, 2015Co-Authors: Eve J. Wildman, Falak Sher, Abbie C. MclaughlinAbstract:We have recently reported a new mechanism of Colossal Magnetoresistance in electron doped Mn oxypnictides NdMnAsO1-xFx. Magnetoresistances of up to -95 percent at 3 K have been observed. Here we show that upon replacing Nd for Pr, the CMR is surprisingly no longer present. Instead a sizeable negative Magnetoresistance is observed for PrMnAsO0.95F0.05 below 35 K (MR7T (12 K) = -13.4 percent for PrMnAsO0.9F0.05. A detailed neutron and synchrotron X-ray diffraction study of PrMnAsO0.95F0.05 has been performed, which shows that a structural transition, Ts, occurs at 35 K from tetragonal P4/nmm to orthorhombic Pmmn symmetry. The structural transition is driven by the Pr 4f electrons degrees of freedom.
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Colossal Magnetoresistance in Mn2+ Oxypnictides NdMnAsO1–xFx
Journal of the American Chemical Society, 2012Co-Authors: Eve J. Wildman, Janet M. S. Skakle, Nicolas Emery, Abbie C. MclaughlinAbstract:Colossal Magnetoresistance is a rare phenomenon in which the electronic resistivity of a material can be decreased by orders of magnitude upon application of a magnetic field. Such an effect could ...
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Colossal Magnetoresistance in mn2 oxypnictides ndmnaso1 xfx
Journal of the American Chemical Society, 2012Co-Authors: Eve J. Wildman, Janet M. S. Skakle, Nicolas Emery, Abbie C. MclaughlinAbstract:Colossal Magnetoresistance is a rare phenomenon in which the electronic resistivity of a material can be decreased by orders of magnitude upon application of a magnetic field. Such an effect could ...
C. P. Sun - One of the best experts on this subject based on the ideXlab platform.
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Colossal electroresistance and Colossal Magnetoresistance in spinel multiferroic cdcr2s4
Applied Physics Letters, 2010Co-Authors: C. P. Sun, Chien-lung Huang, C. C. Lin, J. L. Her, Jiunn-yuan Lin, Helmuth Berger, Hung-duen YangAbstract:Colossal Magnetoresistance (CMR) and Colossal electroresistance (CER) induced by the electric field in spinel multiferroic CdCr2S4 are reported. It is found that a metal-insulator transition in CdCr2S4 is triggered by the electrical field. In magnetic fields, the resistivity ρ of CdCr2S4 responds similarly to that of CMR manganites. Combing previous reports, these findings make CdCr2S4 the unique compound to possess all four properties of the Colossal magnetocapacitive, Colossal electrocapacitive, CER, and CMR. The present results open a new venue for searching new materials to show CMR by tuning electric and magnetic fields.
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Colossal Electroresistance and Colossal Magnetoresistance in Spinel Multiferroic CdCr2S4
Applied Physics Letters, 2010Co-Authors: C. P. Sun, Chien-lung Huang, C. C. Lin, J. L. Her, Jiunn-yuan Lin, Helmuth Berger, Hung-duen YangAbstract:Colossal Magnetoresistance (CMR) and electroresistance (CER) induced by the electric field in spinel multiferroic CdCr2S4 are reported. It is found that a metal-insulator transition (MIT) in CdCr2S4 is triggered by the electrical field. In magnetic fields, the resistivity of CdCr2S4 responds similarly to that of CMR manganites. Combing previous reports, these findings make CdCr2S4 the unique compound to possess all four properties of the Colossal magnetocapacitive (CMC), Colossal electrocapacitive (CEC), CER, and CMR. The present results open a new venue for searching new materials to show CMR by tuning electric and magnetic fields.
Helmuth Berger - One of the best experts on this subject based on the ideXlab platform.
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Colossal electroresistance and Colossal Magnetoresistance in spinel multiferroic cdcr2s4
Applied Physics Letters, 2010Co-Authors: C. P. Sun, Chien-lung Huang, C. C. Lin, J. L. Her, Jiunn-yuan Lin, Helmuth Berger, Hung-duen YangAbstract:Colossal Magnetoresistance (CMR) and Colossal electroresistance (CER) induced by the electric field in spinel multiferroic CdCr2S4 are reported. It is found that a metal-insulator transition in CdCr2S4 is triggered by the electrical field. In magnetic fields, the resistivity ρ of CdCr2S4 responds similarly to that of CMR manganites. Combing previous reports, these findings make CdCr2S4 the unique compound to possess all four properties of the Colossal magnetocapacitive, Colossal electrocapacitive, CER, and CMR. The present results open a new venue for searching new materials to show CMR by tuning electric and magnetic fields.
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Colossal Electroresistance and Colossal Magnetoresistance in Spinel Multiferroic CdCr2S4
Applied Physics Letters, 2010Co-Authors: C. P. Sun, Chien-lung Huang, C. C. Lin, J. L. Her, Jiunn-yuan Lin, Helmuth Berger, Hung-duen YangAbstract:Colossal Magnetoresistance (CMR) and electroresistance (CER) induced by the electric field in spinel multiferroic CdCr2S4 are reported. It is found that a metal-insulator transition (MIT) in CdCr2S4 is triggered by the electrical field. In magnetic fields, the resistivity of CdCr2S4 responds similarly to that of CMR manganites. Combing previous reports, these findings make CdCr2S4 the unique compound to possess all four properties of the Colossal magnetocapacitive (CMC), Colossal electrocapacitive (CEC), CER, and CMR. The present results open a new venue for searching new materials to show CMR by tuning electric and magnetic fields.