2007
DOI: 10.1088/0953-8984/19/12/125218
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The overdoped colossal magnetoresistive manganites

Abstract: The rich physics in the overdoped regime in colossal magnetoresistive manganites is discussed in detail. Apart from having a large magnetoresistance like its underdoped counterpart, the overdoped regime offers a rich variety of phenomena including magnetic, charge and orbital order at low temperatures. The antiferromagnetic metallic state with anisotropic carrier transport, lowdimensional magnetic states and a broad spectrum of excitations is discussed. It is argued that the physics in the overdoped regime is … Show more

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Cited by 23 publications
(14 citation statements)
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“…[1][2][3][4] The exotic physical and magnetic properties arising from these states can be controlled by small external perturbations like a magnetic and electric field, hydrostatic pressure and/or stoichiometric chemistry of the compound, which could have the drastic impact in the area of fundamental research and for spintronic applications. [5][6][7] Quite interestingly, by reduction of particle size in the nanometric scale similar fascinating properties can be obtained, which emphasize a strong ligature between two.…”
Section: Introductionmentioning
confidence: 99%
“…[1][2][3][4] The exotic physical and magnetic properties arising from these states can be controlled by small external perturbations like a magnetic and electric field, hydrostatic pressure and/or stoichiometric chemistry of the compound, which could have the drastic impact in the area of fundamental research and for spintronic applications. [5][6][7] Quite interestingly, by reduction of particle size in the nanometric scale similar fascinating properties can be obtained, which emphasize a strong ligature between two.…”
Section: Introductionmentioning
confidence: 99%
“…In nano-manganites with an AFM ground state (such as the present nanocrystalline thin films), the superexchange interaction that drives AFM is diluted by the surface disorder [6,16,17,19,20]. This induces a reorganization of the disordered surface spins and has recently been explained in terms of the core-shell model [19,20].…”
Section: Resultsmentioning
confidence: 96%
“…At this point, we would like to emphasize that the orbital order (OO) [16,17], which is also affected by the reduced crystallite size, may play a very important role in the stabilization of the FM component. In manganites, it is generally accepted that orbital disordering, i.e., the mixed state of 3d(z 2 − r 2 ) and 3d(x 2 − y 2 ) orbitals, stabilizes FM phases [14][15][16][17].…”
Section: Resultsmentioning
confidence: 99%
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