Mota, A. F., Silvestre, A. J., Sousa, P. M., Conde, O., Rosa, M. A., Godinho, M.
This work reports on the synthesis of CrO2 thin films by atmospheric pressure CVD using chromium trioxide (CrO3) and oxygen. Highly oriented (100) CrO2 films containing highly oriented (0001) Cr2O3...
Enhancement of metallic behavior in bismuth cobaltates through lead doping (2001)
Loureiro, S.M., Young, D.P., Cava, R.J., Jin, R., Liu, Y., Bordet, P., ...
Campos, J. Ayres De, Ferreira, L. P., Cruz, M. M., Gil, J. M., Mendes, P. J., Ferreira, I. C., ...
Neutron powder diffraction, magnetization and ac susceptibility measurements were performed on compounds of the series RFe12−xMox (R D Y and Ho, x D 1, 2, 3). The influence of the Mo content on...
Magnetic and transport properties of U2Pt2In single crystals (1999)
Pereira, L. C. J., Almeida, M., Estrela, Pedro, Godinho, M., Rebizant, J., Spirlet, J. C., ...
Magnetic and transport measurements are reported on U2Pt2 single crystals that crystallize in the tetragonal Zr3Al2-type structure. Magnetization shows enhanced Pauli paramagnetism, reaching a broad...
Magnetization density distribution in U2Co2Sn (1999)
Paixao, J. A., Pereira, L. C. J., Estrela, Pedro, Godinho, M, Almeida, M, Paolasini, L, ...
A magnetization density study by means of polarized-neutron scattering on the intermetallic compound UzCo2Sn is reported. U2Co2Sn belongs to the large An(2)T(2)X (An = U, Np, Pu, Am; T = transition...
Single-crystalline structural, magnetic and transport properties of heavy-fermion U2Pt2In (1998)
Pereira, L.C.J., Visser, A. De, Boer, F.R. De, Almeida, M., Godinho, M., ...
Structural, magnetic and transport properties of single-cryystalline U2Pt2In (1998)
Boer, F.R. De, Estrella, P., Pereira, L.C.J., Visser, A. De, Almeida, M., Godinho, M., ...
Crystallographic and magnetic properties of UFe5.8Al6.2 single crystals (1998)
Goncalves, A. P., Estrela, Pedro, Waerenborgh, J. C., Paixao, J. A., Bonnet, M., Spirlet, J. C., ...
Single crystals of UFe5.8Al6.2 were characterised by X-ray and neutron diffraction, Fe-57 Mossbauer spectroscopy and magnetisation. The structure refinement by X-ray and neutron diffraction shows a...
Structural, magnetic and transport properties of single-crystalline U2Pt2In (1998)
Estrela, Pedro, Pereira, L. C. J., De Visser, A., De Boer, F. R., Almeida, M., Godinho, M., ...
Single crystals of the heavy-electron compound U2Pt2In have been grown by a modified mineralization technique. The x-ray structure refinement shows that U2Pt2In single crystals form in the Zr3Al2...
Static and Dynamical Properties of γ-Fe2O3 Nanoparticles (1997)
Dormann, J., Ezzir, A., Cherkaoui, R., Nogues, M., Lucari, F., D'Orazio, F., ...
Several series of γ-Fe2O3 nanoparticles dispersed in a polymer have been studied by means of various techniques. The variation of the relaxation time of the magnetic moment of the particle is in...
Static and Dynamical Properties of γ-Fe2O3 Nanoparticles (1997)
Dormann, J., Ezzir, A., Cherkaoui, R., Nogues, M., Lucari, F., D'Orazio, F., ...
Several series of γ-Fe2O3 nanoparticles dispersed in a polymer have been studied by means of various techniques. The variation of the relaxation time of the magnetic moment of the particle is in...
Static and Dynamical Properties of γ-Fe2O3 Nanoparticles (1997)
Dormann, J., Ezzir, A., Cherkaoui, R., Nogues, M., Lucari, F., D'Orazio, F., ...
Several series of γ-Fe2O3 nanoparticles dispersed in a polymer have been studied by means of various techniques. The variation of the relaxation time of the magnetic moment of the particle is in...
Single crystal magnetisation of UFe10Mo2 (1997)
Estrela, Pedro, Goncalves, A. P., Godinho, M., Almeida, M., Spirlet, J. C.
Magnetisation measurements have been performed for different directions on aligned UFe10Mo2 single crystals. The results confirm a basal plane anisotropy and suggest an important magnetic...
Pereira, L. C. J., Paixao, J. A., Estrela, Pedro, Godinho, M., Boudarot, F., Bonnet, M., ...
U2Rh2Sn is a member of a large family of intermetallic compounds with the tetragonal U3Si2 crystal structure. It orders antiferromagnetically at 28 K with the propagation vector k = (0, 0, 1/2). We...
Anomalous magnetization process in UFe4Al8 probed by magnetization and magnetoresistance (1996)
Godinho, M., Estrela, Pedro, Goncalves, A. P., Almeida, M., Spirlet, J. C., Bonfait, G.
A strong anisotropic magnetoresistance has been measured in a single crystal of UFe4Al8 and has been used to prove the ferromagnetic order of the U lattice. The giant anomaly detected in the...
DeCampos, J. A., Gil, J. M., Mendes, P. J., Ferreira, L. P., Ferreira, . C., DeCampos, N. A., ...
A series of RFe(12-x)M(x)-type alloys were stabilised with M = Mo and x = 2.5 for R = Y, Nd, Dy and Er. Magnetisation, ac susceptibility measurements and mu (+)SR spectroscopy results are in good...
Giant-magnetoresistance anomaly associated with a magnetization process in UFe4Al8 (1996)
Bonfait, G., Godinho, M., Estrela, Pedro, Goncalves, A. P., Almeida, M., Spirlet, J. C.
Magnetoresistance and magnetization measurements on a UFe4Al8 single crystal are reported. A strong anisotropic magnetoresistance is found in this compound and is used to prove the ferromagnetic...
Structural and physical properties of UFe10Mo2 (1995)
Goncalves, A. P., Estrela, Pedro, Waerenborgh, J. C., Godinho, M., Almeida, M., Spirlet, J. C.
UFe10Mo2 was obtained as single-phase polycrystalline material by annealing at 1450 K a polyphasic sample prepared by melting the elements. This compound was characterized by single-crystal X-ray...
Structural and magnetic properties of UFexM12-x (M = Al, Mo and Si) intermetallic compounds (1995)
Goncalves, A. P., Bonfait, G., Almeida, M., Estrela, Pedro, Godinho, M., Spirlet, J. C.
The U-Fe-M, M = Al, Mo and Si, phase diagrams around UFexM12-x compositions were investigated in order to find congruent melting compounds with ThMn12-type structure. This structure was confirmed in...
Magnetic Properties of UFe10Si2 Single Crystal (1995)
Estrela, Pedro, Godinho, M., Goncalves, A. P., Almeida, M., Spirlet, J. C.
UFe10Si2 single crystals with ThMn12-type structure were studied by X-ray diffraction and magnetisation measurements. A uniaxial anisotropy, a saturation magnetisation of 19.5 mu(B) f.u.(-1) and a...
Irreversibility line of the superconducting compound HgBa2Ca3Cu4O10+δ (1994)
Estrela, P., Abilio, C., Godinho, M., Tholence, J. L., Capponi, J. J.
DC magnetization measurements were performed on the mercury-based superconductor HgBa2Ca3Cu4O10+δ;. The analysis of the magnetic hysteretic behavior of the sample either with temperature or with...
MAGNETIC AND TRANSPORT PROPERTIES OF a-UxGd1-x FILMS (1988)
Freitas, P., Plaskett, T., Godinho, M.
a - UxGd1-x films show Arrott plots and AC susceptibility characteristic of random-exchange dominated systems. Both the resistivity and the magnetoresistance show the possible coexistence of magnetic...
Bordet, P., Capponi, J., Chaillout, C., Chenavas, J., Giordanengo, B., Godinho, M., ...
Detailed neutron diffraction structure analysis of Bi2Sr2CaCu2O8 is reported. The effects of Pb-substitution on Bi2Sr2CaCu2O8 and Bi2Sr2CuO6 are discussed, and magnetization measurement results on...
Low temperature calorimetric and magnetic properties of Al-Mn and Al-Mn-Si quasi-crystals (1988)
Lasjaunias, J.C, Paulsen, C, Godinho, M, Berger, C, Pavuna, D
The authors report the low temperature specific heat Cp and magnetic measurements for solid solution Al-3at.percent Mn, Al86Mn14 and Al25Mn20Si5 in quasi-crystalline phases. From the amplitude of the...
MAGNETIC AND TRANSPORT PROPERTIES OF a-UxGd1-x FILMS (1988)
Freitas, P., Plaskett, T., Godinho, M.
a - UxGd1-x films show Arrott plots and AC susceptibility characteristic of random-exchange dominated systems. Both the resistivity and the magnetoresistance show the possible coexistence of magnetic...
Bordet, P., Capponi, J., Chaillout, C., Chenavas, J., Giordanengo, B., Godinho, M., ...
Detailed neutron diffraction structure analysis of Bi2Sr2CaCu2O8 is reported. The effects of Pb-substitution on Bi2Sr2CaCu2O8 and Bi2Sr2CuO6 are discussed, and magnetization measurement results on...
MAGNETIC AND TRANSPORT PROPERTIES OF a-UxGd1-x FILMS (1988)
Freitas, P., Plaskett, T., Godinho, M.
a - UxGd1-x films show Arrott plots and AC susceptibility characteristic of random-exchange dominated systems. Both the resistivity and the magnetoresistance show the possible coexistence of magnetic...
Bordet, P., Capponi, J., Chaillout, C., Chenavas, J., Giordanengo, B., Godinho, M., ...
Detailed neutron diffraction structure analysis of Bi2Sr2CaCu2O8 is reported. The effects of Pb-substitution on Bi2Sr2CaCu2O8 and Bi2Sr2CuO6 are discussed, and magnetization measurement results on...