Zobrazeno 1 - 10
of 94
pro vyhledávání: '"E. J. McNiff"'
Autor:
Salah A. Makhlouf, E. J. McNiff, F. T. Parker, S. Foner, Frederick E. Spada, Ami E. Berkowitz, R. H. Kodama
Publikováno v:
Journal of Magnetism and Magnetic Materials. :591-594
Nanoparticles of ferrimagnetic NiFe2O4 and antiferromagnetic NiO exhibit a variety of anomalous magnetic properties. The lower coordination of surface spins is responsible in both cases for the observed behavior. This conclusion is supported by calcu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8ccf4b98aae788033eba3e3736a7b286
https://doi.org/10.1016/s0304-8853(98)00845-2
https://doi.org/10.1016/s0304-8853(98)00845-2
Autor:
Nei F. Oliveira, Pierre Masri, Ewout ter Haar, Valdir Bindilatti, Z. Golacki, E. J. McNiff, Xavier Gratens, Salam Charar, M. Averous, Y. Shapira, M. T. Liu, S. Isber
Publikováno v:
Physical Review B. 57:7854-7862
Magnetization measurements were performed on five ${\mathrm{Pb}}_{1\ensuremath{-}x}{\mathrm{Eu}}_{x}\mathrm{S}$ samples, with $0.0092l~xl~0.059$. Two of the samples were measured at 20 mK in magnetic fields $\mathbf{H}$ up to 50 kOe parallel to the $
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::87bf12e5a79fbc9fb6eada822ed72da8
https://doi.org/10.1103/physrevb.57.7854
https://doi.org/10.1103/physrevb.57.7854
Autor:
Nei F. Oliveira, Y. Shapira, M. Averous, Ewout ter Haar, Z. Golacki, G. H. McCabe, Salam Charar, Valdir Bindilatti, E. J. McNiff
Publikováno v:
Physical Review B. 56:8912-8918
The magnetization of ${\mathrm{Pb}}_{1\ensuremath{-}x}{\mathrm{Eu}}_{x}\mathrm{Te}$ samples with $x=0.019$, 0.026, and 0.060 was measured at 20 mK in fields up to 50 kOe, and at 0.6 K in fields up to 180 kOe. The 20 mK data show the magnetization ste
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::74b7948cb7a62b26a7c4da94ece24f1c
https://doi.org/10.1103/physrevb.56.8912
https://doi.org/10.1103/physrevb.56.8912
Autor:
Y. Shapira, M. T. Liu, G. H. McCabe, Aaron Wold, Robert Kershaw, T. Fries, C. Fau, L. R. Ram-Mohan, E. J. McNiff, M. Averous
Publikováno v:
Physical Review B. 56:6673-6680
Bound magnetic polarons (BMP's) in $p$-type ${\mathrm{Cu}}_{2}{\mathrm{Mn}}_{0.9}{\mathrm{Zn}}_{0.1}{\mathrm{SnS}}_{4}$ were investigated using magnetization measurements. The magnetization $M$ was studied from 2 to 60 K in magnetic fields up to 55 k
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::063e8850a91d6fdc12b1aa6f64a54717
https://doi.org/10.1103/physrevb.56.6673
https://doi.org/10.1103/physrevb.56.6673
Autor:
Y. Shapira, T. Fries, E. J. McNiff, Fernando Palacio, Garry J. McIntyre, M. Carmen Morón, Aaron Wold, Robert Kershaw
Publikováno v:
Physical Review B. 56:5424-5431
The work at Tufts University was partially supported by NSF Grant No. DMR-9219727. The research in Zaragoza was supported by CICYT Grant No. MAT94-0043. The work at Brown University was supported by NSF Grant No. DMR-9221141. The Francis Bitter Natio
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a20d60191f1e28def791e92beda826a5
https://doi.org/10.1103/physrevb.56.5424
https://doi.org/10.1103/physrevb.56.5424
Magnetic field induced properties of manganite perovskites with colossal magnetoresistance (invited)
Publikováno v:
Journal of Applied Physics. 81:5324-5329
We present a systematic study of the magnetotransport and magnetic properties of the half-doped La0.5Ca0.5MnO3+δ system. The solid is a metamagnet which undergoes a first-order antiferromagnet (AFM) to ferromagnet (FM) phase transition under a field
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3f39af15a29eb20cd3a4e54e3d9eae3c
https://doi.org/10.1063/1.364535
https://doi.org/10.1063/1.364535
Publikováno v:
Journal of Applied Physics. 81:5552-5557
Anomalous magnetic properties of organic coated NiFe2O4 nanoparticles have been reported previously (Berkowitz et al.).5 These properties included low magnetization with a large differential susceptibility at high fields and shifted hysteresis loops
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0359e92ba8d2be80f9e18ecdd3d6f9af
https://doi.org/10.1063/1.364659
https://doi.org/10.1063/1.364659
Publikováno v:
Materials Science Forum. :643-650
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b5008ac4d26733132a115c4dc543b622
https://doi.org/10.4028/www.scientific.net/msf.235-238.643
https://doi.org/10.4028/www.scientific.net/msf.235-238.643
Publikováno v:
Physical Review B. 54:6073-6076
We have observed multiple electronic states in the presence of a magnetic field in the half-doped La{sub 0.5}Ca{sub 0.5}MnO{sub 3+{delta}} system. The resistivity of each state differs from one another by at least one order of magnitude. Application
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6f900eb80845164ac97d5178465ba53e
https://doi.org/10.1103/physrevb.54.6073
https://doi.org/10.1103/physrevb.54.6073
Publikováno v:
Physical Review B. 54:6457-6464
Magnetization steps (MST's) arising from quartets consisting of four identical spins, each of magnitude $S$, are discussed. It is assumed that the only interactions are (1) antiferromagnetic exchange bonds between quartet members, with only one excha
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f66372d7a6b2ecf2162d28bfdf13a3dd
https://doi.org/10.1103/physrevb.54.6457
https://doi.org/10.1103/physrevb.54.6457