Zobrazeno 1 - 10
of 60
pro vyhledávání: '"H.V. Keer"'
Publikováno v:
Journal of Magnetism and Magnetic Materials. 166:141-148
The present work deals with the detailed investigations on the magnetic properties of the mixed manganite system: NixCd1-xMn2O4 (0.2 less than or equal to x less than or equal to 0.8). In addition to Mn3+ anisotropy, the random substitution of diamag
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b3e50e2516ff4b2c949ada2d12713800
https://doi.org/10.1016/s0304-8853(96)00435-0
https://doi.org/10.1016/s0304-8853(96)00435-0
Akademický článek
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Publikováno v:
Le Journal de Physique Colloques. 37:C4-35
Extensive electrical and thermal studies on transitions in (CrxV1-x)2O3, 0 ⩽ x ⩽ 0.03, and in (TixV1-x)2O3, 0 ⩽ x ⩽ 0.06, have been undertaken. An increase in Cr-doping (0 ⩽ x ⩽ 0.018) raises the temperature of the low-temperature transit
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0bce8a397d73a804106e251a009f9043
https://doi.org/10.1051/jphyscol:1976406
https://doi.org/10.1051/jphyscol:1976406
Publikováno v:
Proceedings / Indian Academy of Sciences. 89:247-252
Hydrous ferric oxide was synthesised under alkaline conditions, aged in distilled water and calcined. Characterisation was attempted through x-ray, differential thermal analysis, thermogravimetric and infrared analyses. Electrical conductivity was me
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cbe68db47c4734bcb84b13c109f34c49
https://doi.org/10.1007/bf02842148
https://doi.org/10.1007/bf02842148
Publikováno v:
Materials Research Bulletin. 11:1301-1305
Heat capacities of single crystal (AlxV1−x)2O3 alloys in the composition range 0 < x ≤ 0.10 have been measured in the temperature range 100–740 K. Each of the compositions exhibited a sharp heat capacity maximum lying in the range 170–190 K.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e357645122db794b831a8356c72645cd
https://doi.org/10.1016/0025-5408(76)90035-0
https://doi.org/10.1016/0025-5408(76)90035-0
Publikováno v:
Materials Research Bulletin. 12:137-143
Studies on heat capacity (Cp) of (CrxV1−x)2O3 system, 0 ≤ x ≤ 0.12, revealed a sharp Cp anomaly in each composition in the range 150–190 K. With increasing temperature, the transition temperature at first increased from 173 K (x = 0) to 187 K
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8ae9bf661f4463352c1ca8c4140196b1
https://doi.org/10.1016/0025-5408(77)90155-6
https://doi.org/10.1016/0025-5408(77)90155-6
Publikováno v:
Bulletin of Materials Science. 3:141-156
An overview is presented concerning the entropies (ΔS) and enthalpies (ΔH) associated with metal-insulator transitions in the (V1−x M x )2O3 M=Al, Cr, Ti systems, 0⩽x⩽0·12 and in non-stoichiometric V2(1 −y )O3, 0⩽y⩽0·01. The recent li
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e6dbbc53910e5fe93675970943533c2c
https://doi.org/10.1007/bf02908489
https://doi.org/10.1007/bf02908489
Autor:
V.N. Kamat Dalal, H.V. Keer
Publikováno v:
Journal of the Less Common Metals. 40:145-151
Studies on the system NiSyTe1−y are reported. The miscibility of the component compounds NiS, NiTe, as revealed by X-ray studies, was observed only in the region y = 0.6−0. Above y = 0.6, lines of the component compounds appeared in the diffracto
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5da6d5817cc5f0e6a3b643c6a59df3c1
https://doi.org/10.1016/0022-5088(75)90190-3
https://doi.org/10.1016/0022-5088(75)90190-3
Autor:
H.V. Keer, Jurgen M. Honig
Publikováno v:
Materials Research Bulletin. 12:277-280
A heat capacity anomaly near 425 K has been observed in polycrystalline V 3 O 5 with an enthalpy change of 650 cal/mole V 3 O 5 . This may be associated with changes in crystallographic and physical properties reported recently.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2a2eacf01e994ba086d24902e5e53044
https://doi.org/10.1016/0025-5408(77)90145-3
https://doi.org/10.1016/0025-5408(77)90145-3
Publikováno v:
Journal of Inorganic and Nuclear Chemistry. 33:2839-2845
Crystallographic properties of solid solutions with stoichiometric composition A x 2+ B 1− x 2+ X y 2− Y 1− y 2− where A , B = Mn, Co, Ni, etc. and X , Y = Se and Te have been reported. Electrical conductivity and magnetic susceptibility meas
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ca8270eda0eb0c4976ce79503f5406c7
https://doi.org/10.1016/0022-1902(71)80044-1
https://doi.org/10.1016/0022-1902(71)80044-1