Person:
Torralvo Fernández, María Josefa

Profile Picture
First Name
María Josefa
Last Name
Torralvo Fernández
URI
https://hdl.handle.net/20.500.14352/76321
Affiliation
Universidad Complutense de Madrid
Faculty / Institute
Ciencias Químicas
Department
Química Inorgánica
Area
Química Inorgánica
Identifiers
UCM identifierORCIDScopus Author IDDialnet ID

Filters

20171
Reset filters

Settings

Start date: 2010 × Subject: 54 ×

Search Results

Now showing 1 - 1 of 1
  • Thumbnail Image
    Item
    Particle size effect on the superconducting properties of YBa2Cu3O7-x particles
    (Dalton Transactions, 2017) Blanco-Gutiérrez, Verónica; Torralvo Fernández, María Josefa; Alario Franco, Miguel Ángel
    YBCO samples with different microstructures were prepared after the thermal treatment of a precursor previously obtained by autocombustion. A drastic influence of the particle size on the magnetic behavior of the samples was observed. Thus, particles smaller than 110 nm do not exhibit superconducting pro-perties and for those ranging around 200 nm the diamagnetic signal characteristic of the superconduc-tivity at low temperature disappears in a large applied magnetic field. Particles larger than 300 nm do not exhibit the particle size effect. Accompanying such a phenomenon, an increase of the superconducting critical temperature is observed with the augmentation of the particle size, the lowest value being 18 K which corresponds to 110 nm particles.