Julio César Martínez

Curriculum Vitae

Research interest and experience

General Field:

Soft Condensed Matter Physics. Orientationally Disordered Phases and the Glassy State
Research Topics:
• Critical-like behaviour in ultraslowing glass forming systems
• Thermodynamic, Structural and Dynamic (Dielectric relaxation) characterization of
binary mixtures in disordered phases
• Determination of dielectric constant and characteristic relaxation parameters by
means of dielectric spectroscopy.
• Effect of compositional disorder in the glass transition of molecular alloys with
orientationally disordered phases.

Skills:

Experimental techniques:

• Dielectric spectroscopy technique (DS).
• Modulated Differential Scanning Calorimetry (MDSC)
Computer:
• Experience with both, Windows and Linux platforms;
• Mathematical language programming and several plotting graphic design softwares.
Teaching:

Assistant professor of the Department of Applied Physics, University of Havana,
Cuba (2002-2006).

Disciplines:

• General Mechanics. Undergraduate Biology Studies. Havana University. Cuba
• Electromagnetism. Undergraduate Biochemistry Studies. Havana University. Cuba

Research experience:

2002-2006

X-Ray Diffraction Laboratory , Faculty of Physics, University of Havana,
Cuba. www.fisica.uh.cu .
Topics investigated:
a) Crystallography and structural characterization of materials by powder X-Ray
diffraction.
b) Relation between crystal structure and physics properties.

2007-2011

Group of Characterization of Materials (GCM) Technical University of Catalonia (UPC).
Barcelona (Spain). http://gcm.upc.edu/
Topics investigated
Orientationally Disordered Phases and the Glassy State


Publisched papers

[1] Dipolar field and energy anisotropy in magnetic thin films
E.Estevez Rams . J.Martinez Garcia , J.Martinez Garcia. J.H.Espina. H.Fuess
Phys Rev B. 68, 184410-184418 (2003)

[2] The use of analytical peak profile functions to fit diffraction data of planar faulted
layer crystal”
E.Estevez Rams, A.Penton, J.Martinez Garcia, H.Fuess
Cryst-Res Technology. 40, 166-176 (2005).

[3] A new system for local area measurements in a pulsed field magnetometer
J.H.Espina-Hernandez , R.Grossinger, J.C. Martinez Garcia, E.Estevez-Rams
Meas.Sci.Technol. 18, 893-900 (2007).

[4] Scaling the dynamics of orientationally disordered mixed crystals
M. Romanini,1 J. C. Martinez-Garcia,1 J. Ll. Tamarit, S. J. Rzoska, M. Barrio
L. C. Pardo, and A. Drozd-Rzoska
J.Chem.Phys. 131, 184504 (2009).

[5] Dynamics of orientationally disordered mixed crystal sharing Cl-adamantane
and CN-adamantane
J.C. Martinez-Garcia S. Capaccioli S. Diez, J.Ll. Tamarit , M. Barrio, N. Veglio,
L.C. Pardo
J.Non-Cryst. Solids, 356, 621–624 (2010)

[6] a -relaxation dynamics of orientanionally disordered mixed crystals composed of Cladamantane
and CN-adamantane
J. C. Martinez-Garcia,J. Ll. Tamarit, S. Capaccioli, M. Barrio, N. Veglio, L. C. Pardo
J.Chem.Phys.132, 1164516 (2010).

[7] Disentangling the Secondary Relaxations in the Orientationally Disordered Mixed
Crystals:Cycloheptanol + Cyclooctanol Two-Component System
J C. Martınez-Garcıa, Josep Ll. Tamarit, Luis C. Pardo, Marıa Barrio,
Sylwester J. Rzoska,Aleksandra Droz-Rzoska
J. Phys. Chem. B. 114, 6099–6106 (2010).

[8] Universal critical-like scaling of dynamics in plastic crystals
J.C. Martínez-Garcia, J. Ll. Tamarit, S.J. Rzoska, A.Drozd-Rzoska, L.C.Pardo, M.
Barrio
J.Non-Cryst. Solids, (in press) (2010)
http://dx.doi.org/10.1016/j.jnoncrysol.2010.06.065

[9] Evidence for critical-like behavior in ultraslowing glass forming systems
S.J. Rzoska, A.Drozd-Rzoska S.Pawlus, J.C. Martínez-Garcia, J. Ll. Tamarit,
Phys. Rev. E 82. 031501 (2010).

[10] Enthalpy space analysis of the evolution of the primary relaxation time in
ultraslowing liquids
J.C. Martinez-Garcia, J.Ll.Tamarit, S.J. Rzoska,
J.Chem.Phys, (accepted) (2010)

Submitted papers

[11] Secondary Relaxations of Orientationally Disordered Mixed Crystals at temperatures
lower than the glass transition temperature.
J.C. Martinez-Garcia, J.Ll.Tamarit, L.C. Pardo, M.Barrio, S.J. Rzoska, A.Rzoska.
Physics Status Solids A, (submitted) (2010)

Papers in preparation

[12] Dynamics of Orientationally Disordered Mixed Crystals composed of CNcyclohexane
and Cyclohexane
J.C.Martinez-Garcia, J. Ll. Tamarit, M. Barrio, L. C. Pardo, N. Veglio,
P.Lunkenheimer and A. Loidl .

[13] Interconnection of the fragility with the dielectric slopes (m,n)
J.C.Martinez-Garcia, J. Ll. Tamarit, S.J.Rzoska

[14] Dynamics crossovers in the Waterto-Mauro equation
J.C.Martinez-Garcia, J. Ll. Tamarit, S.J.Rzoska,S.Capaccioli



Research Stay in Foreign Institutes

2004 Abdus Salam International Centre for Theoretical Physic
(AS-ICTP) May-June. Trieste. Italy
Professor: Dr.Sandro Scandolo
(2 months)

2005 Technical University of Vienna. (TU)
November-February. Vienna. Austria
ALFA project (cooperation between EC and Latin American
countries) under the name:
Network: HIFIELD
Project number II014FI
Project title: “Measurements methods involving high magnetic fields
for advanced and novel materials”.
Professor: Dr. Roland Grössinger
(4 months)

2007 Institute of Physics, Silecian, ul.Uniwersytecka 4, 40-007,
Katowice. Poland. (November-December).
Professor: Dr: Sylwester J. Rzoska and Dr: Sebastian Pawlus
(1 month).

2008 Experimentalphysik V, Universität Augsburg, Universittätsstrasse 2,
Augsburg. Germany. (June).
Professor: Dr. P.Lunkenheimer and Dr: A. Loidl
(1 month).

2010 Institute of Physics, Silecian, ul.Uniwersytecka 4, 40-007,
Katowice. Poland. (March-April).
Professor: Dr: Sylwester J. Rzoska
(2 months)


Last version: 30 /10/10