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74 621 (0,209s)

Result

Pressure effect on magnetic and insulator-metal transition of La0.67Pb0.33Mn0.9Co0.1O2.97 ceramic

In our paper, we study the effect of hydrostatic pressure on the magnetic and insulator-metal transitions of La0.67Pb0.33Mn0.9Co0.1O2.97 manganite. The insulator-metal transition does not...

BM - Fyzika pevných látek a magnetismus

  • 2012
  • Jx
  • Link
Result

Suppression of the metal-insulator transition by magnetic field in (Pr1-yYy)0.7Ca0.3CoO3 (y=0.0625)

for occurrence of the first-order metal-insulator (MI) and simultaneous spin-state (SS) transitions, has been studied using electrical resistivity and magnetization measurements in magnetic fields up to 1...

BM - Fyzika pevných látek a magnetismus

  • 2014
  • Jx
  • Link
Result

MetalInsulator Transition in CaCu3Fe4O12

We study structurally-triggered metalinsulator transition in CaCu3Fe4O12 (DMFT). The ferrimagnetic insulating phase is essentially the same within both approaches. While LDA+U describes the metalinsu...

Condensed matter physics (including formerly solid state physics, supercond.)

  • 2024
  • Jimp
  • Link
Result

Fluctuation-driven insulator-to-metal transition in an external magnetic field.

Annotation not available...

BM - Fyzika pevných látek a magnetismus

  • 2000
  • Jx
Result

Influence of the structure on electric and magnetic properties of La0.8Na0.2Mn1-xCoxO3 perovskites

The influence of the cobalt substitution for manganese ions in the mixed valence perovskites La0.8Na0.2Mn1-xCoxO3 (0?x?0.2) was investigated by X-ray, electric transport and magnetic measurements. The study carried out on sintered polycrysta...

BM - Fyzika pevných látek a magnetismus

  • 2004
  • Jx
Result

Collapse of magnetic moment drives the Mott transition in MnO

We report results for the classic correlated insulator MnO that reproduce a simultaneous moment collapse, volume collapse and metallization transition near the observed critical pressure, and identify the mechanism as colla...

BM - Fyzika pevných látek a magnetismus

  • 2008
  • Jx
Result

Electronic structure of negative charge transfer CaFeO3 across the metal-insulator transition

the metal-insulator transition temperature. By combining hard x-ray photoelectron-disproportionation model of the metal-insulator transition for CaFeO3 and highlights. These results provide detai...

Condensed matter physics (including formerly solid state physics, supercond.)

  • 2018
  • Jimp
  • Link
Result

The low-temperature phase separation in Pr0.5Ca0.5CoO3.

below 75 K, the sample undergoes an incomplete transition to a ferromagnetic phase of enhanced metallic character. Residual paramagnetic regions exhibit at 30 K a metal-insulator transition, which is inte...

BM - Fyzika pevných látek a magnetismus

  • 2007
  • Jx
Result

Charge transfer, valence, and the metal-insulator transition in Pr0.5Ca0.5CoO3.

evidence that the recently observed simultaneous metal-insulator and spin-state transition in perovskite cobaltite Pr0.5Ca0.5CoO3 is accompanied by a charge transfer between Prand Co cations from 0.5 Pr3+ + Co3.5+ toward 0...

BM - Fyzika pevných látek a magnetismus

  • 2010
  • Jx
Result

Metal-insulator transition and the Pr3+/Pr4.+ valence shift in (Pr1-yYy)0.7Ca0.3CoO3.

The magnetic, electric, and thermal properties of the (Ln1-yYy0.7Ca0.3CoO3 perovskites (Ln=Pr,Nd) were investigated down to very low temperatures. The main attention was given to a peculiar metal-insulator (M-I) transit...

BM - Fyzika pevných látek a magnetismus

  • 2010
  • Jx
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