Horacio A. Aliaga

Presentations, talks 

Publications (detailed)

1) Phase Diagram for Ca1-xYxMnO3 type crystals. H. Aliaga, R. Allub, B. Alascio. Solid State Communications 110 (1999) 525-530. (pdf, preprint).

2) Phase Diagram of electron-doped Mn perovskites. H. Aliaga, R. Allub, B. Alascio. Journal of Magnetism and Magnetic Materials 196-197 (1999)  522-523. (pdf).

3) Magnetism, resistivity, and magnetoresistance in Ca1-xYxMnO3 manganites. H. Aliaga, M. T. Causa, B. Alascio, H. Salva, M. Tovar, D. Vega, G. Polla, G. Leyva and P. Konig. Journal of Magnetism and Magnetic Materials, 226-230, 791, (2001). (pdf).

 

4) Structural phase diagram of Ca1-xYxMnO3: Charaterization of phases and phase transition. D. Vega, G. Polla, A. G. Leyva, P. Konig, H. Lanza, A. Esteban, H. Aliaga, M. T. Causa, M. Tovar, B. Alascio. Journal of  Solid State Chemistry, 156, 458-463 (2001). (abstract, pdf).

 

5) Island phases and charge order in two-dimensional manganites. H. Aliaga, B. Normand, K. Hallberg, M. Avignon, B. Alascio, PRB 64, 024422 (2001). (abstract, Preprint).

 

6) Magnetic polarons in Ca1-xYxMnO3. H. Aliaga, M.T. Causa, M. Tovar, and B. Alascio, Physica B 320, 75 (2002). (pdf, preprint).

 

7) Double exchange model for in RuSr2(Eu,Gd)Cu2O8. H. Aliaga, and A. Aligia, Physica B 320, 34 (2002). (pdf, preprint).

 

8) Charge ordering in the electron doped Ca1-xYxMnO3 manganites. D. Vega, C. Ramos, H. Aliaga, M. T. Causa, B. Alascio, M. Tovar, G. Polla, G. Leyva, P. Konig, and I. Torriani, Physica B 320,37 (2002).(pdf)

 

9) Ca1-xYxMnO3 Manganites: synthesis and ESR characterization. O. Aguero, A.G. Leyva, P. Konig, D. Vega, G. Polla, H. Aliaga, and M.T. Causa, Physica B 320, 47 (2002).(pdf)

 

10) High temperature susceptibility in electron-doped Ca1-xYxMnO3: Double Exchange vs. Superexchange. H. Aliaga, M. T. Causa, M. Tovar, A. Butera, B. Alascio, D. Vega, G. Leyva, G. Polla, and P. Konig. J. Physics: Condensed Matter 15, 249 (2003). (preprint).

 

11) Theoretical Study of Half-Doped Models for Manganites: Fragility of the CE Phase with Disorder, Two Types of  Colossal Magnetoresistances, and Charge-Ordered States for Electron-Doped Materials. H. Aliaga, D. Magnoux, A. Moreo, D. Poilblanc, S. Yunoki, and E. Dagotto, PRB 68,  104405 (2003). (abstract, preprint).

 

12) Structural, electric, and magnetic study of Ca0.5Y0.5MnO3. M. T. Causa, H. Aliaga,  D. Vega, M. Tovar, B. Alascio, H. R. Salva, and E. Winkler.  Journal of Magnetism and Magnetic Materials, 272-276 ( 2004), 81-82. (pdf)

 

13) Time-dependent local Green’s operator and its applications to manganites. Phys. Rev. B 71, 184404 (2005). (abstract, preprint).

 

14) Fragility of the A-type AF and CE Phases of Manganites: An Exotic Insulator-to-Metal Transition Induced by Quenched Disorder. G. Alvarez, H. Aliaga, C. Sen, and E. Dagotto, Phys. Rev. B 73, 224426 (2006).

 

15 ) Colossal Magnetoresistance Observed in Monte Carlo Simulations of the One- and Two-Orbital Models for Manganites , C. Şen, G. Alvarez, H. Aliaga, E. Dagotto, Physical Review B, 73, 224441 (2006).

Presentations, posters and abstracts (detailed)

1) Phase Diagram of electron-doped Mn perovskites. H. Aliaga, R. Allub, B. Alascio. 7th European Magnetic Materials and Applications Conference, Zaragoza, Spain, Sept. 1998.

 

2) Resistivity, magnetoresistance and magnetic properties of perovskites Ca1-xYxMnO3.  H. Aliaga, B. Alascio, M. T. Causa, G. Leiva, G. Polla, P. Perazzo and D. Vega. National Conference, Tucuman, Argentina, Sept.(1999).

 

3) Magnetic, structural and transport properties of (Ca,Y)-manganites. H. Aliaga, M. T. Causa, B. Alascio, H. Salva, M. Tovar, D. Vega, G. Polla, G. Leyva and P. Konig. International Conference of Magnetism (ICM2000), Recife, Brasil.

 

4) Charge order in Ca0.5Y0.5MnO3, structural study. H. Aliaga, D. Vega, M. T. Causa, M. Tovar, B. Alascio, G. Polla, A. G. Leyva, P. Konig. National Conference, Buenos Aires, Argentina, Sept. (2000).

 

5) Microscopic theory of frustrated phase separation in the manganites. H. Aliaga, J. Lorenzana, and B. Alascio. Fifth Latin American Workshop on Magnetism, Magnetic Materials and their Applications. Bariloche, Argentina, Sept. (2001).

 

6) Minimal model in two-dimensional manganites. H. Aliaga, B. Normand, K. Hallberg, and B. Alascio. Fifth Latin American Workshop on Magnetism, Magnetic Materials and their Applications. Bariloche, Argentina, Sept. (2001).

 

7) Double exchange model for RuSr2(Eu,Gd)Cu2O8. H. Aliaga and A. A. Aligia. Fifth Latin American Workshop on Magnetism, Magnetic Materials and their Applications. Bariloche, Argentina, Sept. (2001).

 

8) Charge ordering in the electron doped Ca1-xYxMnO3 manganites. H. Aliaga, D. Vega, C. A. Ramos, B. Alascio, M. Tovar, M. T. Causa, A. G. Leyva, P. Konig, and G. Polla. Fifth Latin American Workshop on Magnetism, Magnetic Materials and their Applications. Bariloche, Argentina, Sept. (2001).

 

9) Magnetic behavior of low electron doped Ca1-xYxMnO3. H. Aliaga, M. T. Causa, M. Tovar, B. Alascio, D. Vega, G. Polla, G. Leyva, and P. Konig. Fifth Latin American Workshop on Magnetism, Magnetic Materials and their Applications. Bariloche, Argentina, Sept. (2001).

 

10) Influence of disorder in the FM-CE competition of half-doped manganites.  H. Aliaga, D. Magnoux, A. Moreo, D. Poilblanc, S. Yunoki, and E. Dagotto. March Meeting 2003. Austin, Texas, USA.

 

11) Metal-Insulator transitions driven by magnetic field in half-doped manganites. H. Aliaga and D. Vollhardt. German Physik March Meeting, Regensburg, Germany (2004).

 

12) Phase separation, polarons and other related issues in manganites. H. Aliaga. Invited Talk,Universität Göttingen, Germany, May (2004).

 

13) Novel algorithm for 3D manganites.  H. Aliaga. Young Scientists Workshop 2004. Reimlingen, Germany, June (2004).

14) Time-dependent local Green's operator and its application to manganites. H. Aliaga. Second International Workshop Ordering Phenomena in Transition Metal Oxides, Wildbad-Kreuth, Germany (Sept. 2004).

 

                               15) Stripes and Related Phenomena.(talk). H. Aliaga. SFB-Methodenseminar, Augsburg, Germany, January (2005).

 

16)    Local Green’s operator and its application to manganites. (abstract). H. Aliaga. German Physik March Meeting, Berlin, Germany (2005).

Courses taught

1) Teacher Assistant, Algebra and Analitic Geometry, Univ. of San Juan, 1992 - 1994.

 

2) Teacher Assistant, Physics I, Univ. of San Juan, 1993 - 1994.

 

3) Teacher Assistant in the International School of Magnetism (1999), sponsored by IB-CAB and ICTP.

 

4) Teacher Assistant in the International School of Magnetism (2001), sponsored by IB-CAB and ICTP.

 

5) Teacher Assistant on Magnetism, one semester course for graduates and undergraduates students (2001).

 

Referee Activity

Reviewed manuscripts for international scientific journals: Physica B , Physical Review B, Physical Review Letters, JMMM.