Library

X
feed icon rss

Your email was sent successfully. Check your inbox.

An error occurred while sending the email. Please try again.

Proceed reservation?

Export
  • 1
    Electronic Resource
    Electronic Resource
    Investigation of magnetic coupling in sputtered epitaxial Fe/Cr and Co/Cu wedged structures : The 40th annual conference on magnetism and magnetic materials (1996)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 79 (1996), S. 4980-4982 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: We explore the magnetic interlayer exchange coupling in single-crystalline Fe/Cr and Co/Cu wedged multilayers prepared by magnetron sputtering on two orientations of MgO—(100) and (110). Structural examination shows that high quality epitaxial films are obtained in both systems using seeded epitaxy growth techniques. Oscillatory interlayer coupling is observed in Cr-wedged samples grown on both MgO(100) and MgO(110) with similarly long oscillation periods of ∼18 A(ring). These results are comparable to earlier work for molecular beam epitaxy and sputter-deposited epitaxial Fe/Cr structures. Long-period oscillatory coupling is also observed in sputtered Co/Cu(110) for the Cu-wedged structures. Studies of the dependence of magnetic coupling on the thickness of the magnetic layers for fixed Cr layer thickness provides no evidence of any nonmonotonic dependence. © 1996 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.361610
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 2
    Electronic Resource
    Electronic Resource
    Resistance noise in uncoupled giant magnetoresistive multilayers (1996)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 79 (1996), S. 7751-7756 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: Various uncoupled, magnetoresistive multilayer systems show quasiequilibrium resistance noise associated with ||dR(H)/dH||. The size of this 1/f noise, particularly in comparison with Johnson noise in various frequency ranges, is discussed for all the different systems. All the observed samples exhibit resistive Barkhausen noise, allowing the measurement of domain sizes very similar to those observed in coupled samples. In addition, the asymmetric hysteresis of the Barkhausen noise in uncoupled multilayers suggests the same type of hysteretic domain structure observed in antiferromagnetically coupled multilayers. © 1996 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.362379
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 3
    Electronic Resource
    Electronic Resource
    1/f noise in giant magnetoresistive materials : 38th Annual Conference on Magnetism and Magnetic Materials (1994)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 75 (1994), S. 6531-6533 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: The main source of 1/f resistance noise in materials exhibiting giant magnetoresistance (GMR) is the GMR effect itself. Large 1/f noise from fluctuations in the parallel vs antiparallel alignment appears when ||dR/dH|| is large. We have studied this noise as a function of the number of Co/Cu bilayers in multilayer samples and discuss the implications for devices. Barkhausen noise in the resistance as the field is swept through the GMR transition is used to estimate coherent domain sizes between 0.1 and 10 μm2 for a single Co layer in the multilayers. GMR noise is also seen in a Co/Ag granular system.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.356938
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 4
    Electronic Resource
    Electronic Resource
    Non-Gaussian noise in a colossal magnetoresistive film (1997)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 81 (1997), S. 272-275 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: Anomalous non-Gaussian effects appear in the resistance fluctuations of a macroscopic sample of the colossal magnetoresistive material La2/3Ca1/3MnO3. Individual resistance switches are frequently resolved. The results indicate the presence of highly inhomogeneous hopping resistance among magnetic domains in this partially disordered material © 1997 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.363844
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 5
    Electronic Resource
    Electronic Resource
    History dependent domain structures in giant-magnetoresistive multilayers (1995)
    Woodbury, NY : American Institute of Physics (AIP)
    Applied Physics Letters 67 (1995), S. 1938-1940 
    Details
    ISSN: 1077-3118
    Source: AIP Digital Archive
    Topics: Physics
    Notes: Resistance noise measurements of several types reveal the field history dependence of domain structure in sputtered Co/Cu multilayers. We find many smaller domains as the field is decreased from saturation towards zero, but as the field changes sign and is increased in the opposite direction we observe a smaller number of larger domains. Cycling the field without changing its sign preserves the smaller domains, strongly reducing the Barkhausen noise. Discrete fluctuations in resistance due to individual domains yield domain size estimates. © 1995 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.114574
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...