2004
Workshop on Colossal Magnetoresistive Manganites and Related Transition Metal
Oxides
Organizers
Jaime Fernandez-Baca (Oak Ridge National Laboratory; jfn@ornl.gov)
Motivation
The
renewed interest in the physics of transition metal (TM) oxides has been led by
the strong effort to understand the colossal magnetoresistive (CMR)
manganites. As efforts on the manganites
mature, unifying themes are emerging. For example, the strong coupling between
the spin, charge, lattice and orbital degrees of freedom gives rise to
competing interactions, and thus a wide variety of ground state behavior. These ground states include: phase
segregation and/or stripe formation, magnetic and orbital ordering, and
insulating or metallic charge transport, all of which are closely related to
the degree of local lattice distortions.
Varying the effective dimensionality of the materials can alter these
effects, as well. Many of these themes
appear in other TM oxides (stripes in nickelates and cuprates, for example),
and it is advantageous to discuss the physics of the CMR manganites in the
broader context of the oxides in general. This is extremely beneficial to the
TM oxides community.
Goals of the workshop
·
To disseminate the most recent results in the physics of TM
oxides.
·
To provide a forum that advocates the identification of the
unifying themes among manganites and other TM oxides.
·
To identify future directions for research in TM and other
oxides.
·
To encourage new collaborations among experimental and/or
theoretical programs among national laboratories, and to strengthen ongoing
collaborations
Workshop Format
Towards
this end, the workshop on “CMR Manganites and Related Transition Metal Oxides”
will take place at the Telluride Summer Research
Center, Telluride, CO, June 28-July 3 2004.
This workshop will be a sequel to the highly successful Telluride
workshops on magnetoresistive oxides held July of 1998, 2000 and 2002. Participation to this workshop is by
invitation only, the
participants have been selected to represent the current research efforts
in the area of CMR and/or related oxide physics, with a strong emphasis on work
of interest to both the CMR and related oxides communities.
The
workshop format will be similar to the popular Gordon Research Conferences,
allowing for intensive discussion of each presentation, as well as for general
topical discussions. This format will
consist of morning sessions with 30-minute presentations, followed by free
afternoons and informal evening discussion periods. The experience from the 1998, 2000 and 2002
workshops demonstrated that this approach was not only highly effective, but
also extremely well-received by all participants. Likewise, the environment in Telluride will
foster free and open interactions.
The workshop program has
been designed to broadly cover issues of materials preparation,
structure-property relationships, role of phase segregation, dynamics, etc. in
CMR and related materials. The list of talks will include CMR presentations, as
well as a number of seminars addressing
the properties of cobaltates, ruthenates, and cuprates. By incorporating these
topics the organizers expect to stimulate exchanges leading to the
identification of commonalities among the various classes of oxide materials.
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