9 resultados para Modèle cholestatique Mn-BR

em Doria (National Library of Finland DSpace Services) - National Library of Finland, Finland


Relevância:

20.00% 20.00%

Publicador:

Resumo:

Julkaistu: Åbo : tryckt, hos directeruren och kongl. boktr. i Stor. förstendömet Finland, Jacob Merckell , [1753]

Alkuperäisen ulkoasutiedot: [1-2] 3-40 s. ; 4:o

Omistushistoria: Hh: A. R. Cederberg; H Reenpää: Ex libris Heikki Reenpää 1971

Relevância:

20.00% 20.00%

Publicador:

Resumo:

Den specialsamling schacklitteratur som bär namnet Gauffin har tillhört direktör Thorsten Gauffin och överlämnades till akademibiblioteket år 1978. Thorsten Gauffin, som var åbobo, var hängiven schackspelare och var på sin tid bland de bästa schackspelarna i landet, år 1936 blev han Finlandsmästare i schack. Han arbetade tidvis utomlands, främst i England och Tyskland och passade då på att studerade bland annat schack. Samlingen finns katalogiserad i en separat kortkatalog. I den mån böckerna i samlingen har satts in i Alma har de fått signum HB Saml. Gauffin. Samlingen skall med tiden retrokatalogiseras. Vissa speciella nyförvärv till huvudbilioteket har fogats till specialsamlingen, men merparten schacklitteratur vid huvudbiblioteket har fogats till samlingen med signum HB XII och från och med år 2000 till huvudbibliotekets numerus currens-samling.

Relevância:

20.00% 20.00%

Publicador:

Resumo:

In this work magnetic properties of ZnGeP2:Mn were investigated in DC magnetic field with SQUID magnetometer in the temperature range from 3 K up to 400 K and in AC magnetic field with AC magnetometer in the temperature range from 77 K up to 350 K in frequency range from 500 Hz up to 18 KHz. Three ZnGeP2:Mn samples were studied with Mn concentration c = 1.5 % mass, 3 % mass and 3.5 % mass.

Relevância:

20.00% 20.00%

Publicador:

Resumo:

In the present work structural, magnetic and transport properties of InGaAs quantum wells (QW) prepared by MBE with an remote Mn layer are investigated. By means of high-resolution X-ray diffractometry the structure of the samples is analyzed. It is shown that Mn ions penetrate into the QW. Influence of the thickness of GaAs spacer and annealing at 286 ºС on the properties of the system is shown. It is shown that annealing of the samples led to Mn activation and narrowing of the Mn layer. Substantial role of 2D holes in ferromagnetic ordering in Mn layer is shown. Evidence for that is observation of maximum at 25 – 55 K on the resistivity temperature dependence. Position of maximum, which is used for quantitative assessment of the Curie temperature, correlates with calculations of the Curie temperature for structures with indirect interaction via 2D holes’ channel. Dependence of the Curie temperature on the spacer thickness shows, that creation of applicable spintronic devices needs high-precision equipment to manufacture extra fine structures. The magnetotransport measurements show that charge carrier mobility is very low. This leads to deficiency of the anomalous Hall effect. At the same time, magnetic field dependences of the magnetization at different temperatures demonstrate that systems are ferromagnetically ordered. These facts, most probably, give evidence of presence of the ferromagnetic MnAs clusters.

Relevância:

20.00% 20.00%

Publicador:

Resumo:

Invocatio: I.J.N.

Relevância:

20.00% 20.00%

Publicador:

Resumo:

Invocatio: I.J.N.