Ass. Prof. Julio Antonio Larrea Jiménez

Room: 3047 (Ala-2, main building)

Email: larrea@if.usp.br

Telephone: +55 11 30916727

Larrea's group link

Biography

I am Peruvian physicist with B. Phys. and Diploma degrees from the National University of San Marcos (Peru, 1998). I obtained my M. Phys. (2000) and Ph. D. (2003) degrees from the Brazilian Center for Research in Physics (CBPF), where also stayed as junior postdoctoral researcher (2004–2007).

I also worked as research associate at the École Polytechnique Fédérale de Lausanne (2007–2009), as a senior postdoctoral researcher at the Institute of Solid State Physics of Vienna University of Technology (2010-2014), with a partial dual affiliation with the Physics Department of the University of Johannesburg (2014). In 2015 I came back to CBPF as Visiting Scientist.

Since 2018, I enrolled as Assistant Professor in the Institute of Physics, University of Sao Paulo . My current challenge is to lead my research group with special focus on material synthesis and  development of experimental methods under extreme conditions with the aim to uncover the fate of topological quantum matter and correlated quantum phenomena close to quantum phase transitions.

Research interests

  • Investigation of correlated phenomena in Ce-based Kondo lattices close to quantum critical points.
  • Investigation of quantum magnetism in frustrated spin systems close to a quantum phase transitions.
  • Investigation of quantum phase transition induced by dimensionality and size reduction.
  • Uncovering the fate of topological matter.
  • Development of high-pressure apparatus (range from few kbar up to 250 kbar).
  •  Material synthesis (bulk polycrystals, thin films and nanoparticles) with strongly correlated electron properties.
  • Going beyond the state-of-the-art: Upgrading AC methods to measure specific heat, thermal conductivity, electrical transport and magnetic susceptibility under simultaneous extreme conditions: very high-pressure (up tp 25 GPa), very low temperature (down to 40 mK) and intensive magnetic fields (up to 17 T), in both bulk and thin films.
  •  Combine local-probe spectroscopies: Mossbauer spectroscopy, neutron scattering and Synchrotron radiation.
  •  Synergy between basic science and technology: Sustainable coolers

Collaborators map

Selected Publications

1. Jiménez, J. L., Crone, S. P. G., Fogh, E., Zayed, M. E., Lortz, R., Pomjakushina, E., … & Mila, F. (2020). A quantum magnetic analogue to the critical point of water. Nature 592, 370–375 (2021),  https://doi.org/10.1038/s41586-021-03411-8

2. Julio Larrea J.; MARTELLI, VALENTINA ; RONNOW, H . High-pressure specific heat technique
to uncover novel states of quantum matter. JOURNAL OF PHYSICS.
CONFERENCE SERIES (ONLINE), 2020.

3. MARTELLI, V. ; J. Larrea J. ; CAI, A. ; NICA, E. M. ; TAUPIN, M. ; PROKOFIEV, ANDREY ; LIU, C. ; LAI, H. ; YU, R. ; INGERSENT, K. ; KUCHLER, R. ; STRYDOM, A. ; GEIGER, D. ; HÄNEL, JONATHAN ; SI, Q. ; S. Paschen . Sequential localization of a complex electron fluid. PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, v. 116, p. 17701-17706, 2019.

4. MARTELLI, VALENTINA ; Jiménez, Julio Larrea ; CONTINENTINO, MUCIO ; BAGGIO-SAITOVITCH, ELISA ; BEHNIA, KAMRAN . Thermal Transport and Phonon Hydrodynamics in Strontium Titanate. PHYSICAL REVIEW LETTERS, v. 120, p. 125901, 2018.
 
5.  ZAYED, M. E. ; RUEGG, C. ; J. Larrea J. ; LAUCHLI, A. M. ; PANAGOPOULOS, C. ; SAXENA, S. ; ELLERBY, M. ; MCMORROW, D. ; STRASSLE, T. ; KLOTZ, S. ; HAMEL, G. ; SADYKOV, R. ; POMJAKUSHIN, V. ; BOEHM, M. ; JIMENEZ RUIZ, M. ; SCHNEIDEWIND, A. ; POMJAKUSHINA, E. ; STINGACIU, M. ; CONDER, K. ; H. Ronnow . 4-spin plaquette singlet state in the Shastry-Sutherland compound SrCu2(BO3)2. Nature Physics, p. 4190, 2017.
 
6. Munevar, J. ; CABRERA-BAEZ, M. ; ALZAMORA, M. ; J. Larrea J.; BITTAR, E. M. ; BAGGIO-SAITOVITCH, E. ; Litterst, F. J. ; RIBEIRO, R. A. ; AVILA, M. A. ; MORENZONI, E. . Magnetic order of intermetallic studied by and Mössbauer spectroscopy. PHYSICAL REVIEW B, v. 95, p. 125138, 2017.
 

7. Larrea J.; STRYDOM, A. M. ; MARTELLI, V. ; PROKOFIEV, A. ; LORENZER, K.-A. ; RØNNOW, H. M. ; PASCHEN, S. . Converse effect of pressure on the quadrupolar and magnetic transition in. Physical Review B, v. 93, p. 125121, 2016.

8. PASCHEN, SILKE ; LARREA J., Julio . Ordered Phases and Quantum Criticality in Cubic Heavy Fermion Compounds. Journal of the Physical Society of Japan, v. 83, p. 061004, 2014.
 

9. J. Larrea J.; PLESSEL, J. ; Abd-Elmeguid ; FONTES, M. ; JORNADA, J. ; PEREIRA, A. ; J. Ferstel ; C. Geibel . Phase diagram of the heavy fermion system YbFe2Ge2 under pressure. PHYSICAL REVIEW B, v. 74, p. 140406R, 2006.

10. Y. J. Uemura ; T. Goko ,.I M. Gat-Malureanu, J. P. Carlo, P. L. Russo, A. T. Savici, A. Aczel, G. J. MacDougall, J. A. Rodriguez, G. M. Luke, S. R. Dunsiger, A. McCollam, J. Arai, Ch. Pfleiderer, P. Böni, K. Yoshimura, E. Baggio-Saitovitch, M. B. Fontes, J. Larrea, Y. V. Sushko & J. Sereni . Phase separation and suppression of critical dynamics at quantum transitions of itinerant magnets: MnSi and (Sr1_xCax)RuO3. Nature Physics, v. 1038, p. 488, 2006.
 
11. J. Larrea J.; EICHLER, A. ; ALVARENGA, A. D. ; FONTES, M. ; T. Burghardt ; BAGGIO-SAITOVITCH, E. ; CONTINENTINO, M. . Quantum critical behavior in CePt ferromagnetic Kondo lattice. Physical Review B – Condensed Matter and Materials Physics, v. 72, p. 03512, 2005.
 

12.  J. Larrea J.; SANCHEZ, D. R. ; LITTERST, J. ; BAGGIO-SAITOVITCH, E. ; FERNANDES, J. C. ; CONTINENTINO, M. ; GUIMARAES, . Magnetism and charge ordering in Fe3O2BO3 studied by Fe57 Mössbauer spectroscopy. Physical Review. B, Condensed Matter and Materials Physics, United States, v. 70, p. 44521-44528, 2004.

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