Electrical behavior of some silver-doped lanthanum-based CMR materials

Lakshmi, Y. Kalyana; Reddy, P. Venugopal

doi:10.1016/j.jmmm.2008.11.012

Cited by 30 publications

(1 citation statement)

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“…Replacing the divalent alkali-earth metals by monovalent elements, such as Na, K and Li, also leads to similar phenomena in manganites. Recently substitution of Ag for La in LaMnO 3 leads to another series of novel oxides exhibiting ferromagnetic metal to paramagnetic insulators transition with high CMR effect at room temperature [4][5][6][7][8][9][10][11][12][13][14][15]. In our paper we study magnetic properties of La 0.90 Ag 0.10 (Co x Mn 1-x )O 3 ferromagnetic ceramics at ambient pressure and high hydrostatic pressure.…”

Section: Introductionmentioning

confidence: 99%

Magnetic Properties of La_0.9Ag_0.1(Mn_1-xCo_x)O₃under Pressure

Antoňák

Arnold

Kamarád

et al. 2013

EPJ Web of Conferences

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Abstract. In our paper we report on magnetic properties of La 0.90 Ag 0.10 (Co x Mn 1-x )O 3 ferromagnetic ceramics (x = 0.00 and0.03) which were studied in pressures up to 0.9 GPa. Magnetic transition at the Curie temperature T C is accompanied with metal insulator transition with a maximum at T* which is shifted to lower temperature with applied magnetic field. The Curie temperature is decreasing with substitution of Co for Mn and is ranging from 178 K to 126.5 K. Hydrostatic pressure increases T C for sample with x = 0.03 nearly linearly with the pressure coefficient dT c /dp = 5.7 K/GPa. Hysteresis loop is affected marginally; µ s increases and H c decreases with pressure.

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