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Juan Carlos ROJAS

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Documents
Identifiants chercheurs
  • IdHAL juan-carlos-rojas-sanchez
  • ResearcherId : N-9963-2015
  • IdRef : 224501712
  • ORCID 0000-0001-7044-2785
  • Google Scholar : https://scholar.google.fr/citations?user=n59i7yUAAAAJ&hl=fr
  • ResearcherId : http://www.researcherid.com/rid/N-9963-2015

Présentation

Juan Carlos Rojas-Sanchez is currently a CNRS permanent researcher at Institute Jean Lamour (IJL), Nancy, France. He received his Bachelor in Physics in 1999 from the National University of Engineering (UNI), Lima, Peru, his Master in Physics in 2004 from Balseiro Institute, Bariloche, Argentina, and his Ph.D. in Physics in 2011 from Balseiro Institute (National University of Cuyo), Bariloche Atomic Center, Bariloche, Argentina. From 2011-2015, he was a postdoctoral fellow in *Laboratoire de Nanostructures et Magnetisme* INAC/CEA, SPINTEC, Institut Néel, and Unité Mixte de Physique CNRS/Thales, France. He joined the CNRS in October 2015 as a researcher in the Spintronics and Nanomagnetism group at Institute Jean Lamour (IJL). In 2018, he also became the Head of IJL’s micro and nanotechnologies competence center MiNaLor. His main research interests span from spintronics to spin-caloritronics and spin-orbitronics. He studies spin current, spin Hall effect, Edelstein effect, and spin-orbit torque with the aim to obtain more efficient, faster, and environmentally cleaner devices for memory, energy harvesting, and logic applications. He has over 50 publications in international peer-reviewed journals such as Nature Materials, Advanced Materials, Nature Communications, Nano Letters, and Physical Review Letters, 10 (10) as the first (second) author, and 14 as the corresponding author, with a total citation of more than 2720. He has also served as the session chair of several significant international conferences and co-chair or chair of [International Workshops in Spintronics](https://fisica.cab.cnea.gov.ar/spin2022/). **Education** - 2020 ***HDR*** French qualification, Lorraine University (France) - 2011 ***Ph.D. in Physics***, Insituto Balseiro, U. Cuyo, Bariloche (Argentina) - 1999 ***Bachelor*** ***in Physics***, National University of Engineering (UNI), Lima (Peru) **Employment and Professional Experience** - 2011-2013 ***Post-doc***, CEA-Grenoble (France). CEA-Eurotalents Marie-Curie Actions Fellow. - 2013-2015 ***Post-doc***, UMPhi CNRS/Thales (France). - 2015- ***CNRS permanent researcher***, Institute Jean Lamour (IJL), Nancy, France. "Chargé de récherche" **Institutional responsibilities** - 2018– Present **Head of the Micro and nanotechnology platform of Lorraine**, IJL’s CC-[MiNaLor](http://ijl.univ-lorraine.fr/en/competence-centers/micro-and-nanotechnologies-competence-center-cc-minalor) Cleanroom facilities including a staff of 3 engineers. **Project leader**: - 2016 CNRS Cellule Energy (15 k€) - 2018-2021 Local Coordinator ANR [MISSION](https://spin.ijl.cnrs.fr/projects/mission) (202 k€) - 2020-2023 PI ANR JCJC [TOPTRONICS](https://spin.ijl.cnrs.fr/projects/toptronic/) (256 k€) - 2021-2025 Local co-PI H2020 MSCA RISE [ULTIMATE-I](https://spin.ijl.cnrs.fr/projects/eu-ultimate-i/) (444.5 k€) **Supervision**: 2 post-doc, 6 Ph.D. students, 4 M2 students, and 2 M1 students, and Mentoring 10 international internship students (resulted in publications with most of them) from Chine (3), USA (2), Peru (4), Mexico (1) and Argentina (1) **Research records(ISI Web of Science, Dec 2022) and scientific communication** - **50** publications in international peer-reviewed journals including 1 Nat. Mater., 2 Adv. Materials, 2 Nat. Comm., 3 Nano Lett., 3 Phys. Rev. Lett, 4 Phys. Rev. Appl., 10 Phys. Rev. B and 7 Appl. Phys. Lett - **2729** citations (average 54.5 citations per article). 3842 citations in Google Scholar. - **4** highly cited papers (top 1% for the field and publication year). The first author in three of them and the corresponding author in the fourth one. Nat Comm. 2013, PRL 2014, PRL 2016, and Nat. Materials 2016. - **h-index**: 24 (26 in Google Scholar) - **29** invited talk at international conferences - **11** contributed talks at international conferences - **18** seminars at Universities and research laboratories **Awards**: - 2020: [CNRS Bronze Medal](https://www.cnrs.fr/fr/personne/juan-carlos-rojas-sanchez) - 2019: City Medal, Chepen (hometown in Peru) **Organization of International Conferences**: - 2019: Co-chair of SPIN PERU, [International Workshop Spintronics 2019](http://spinphys.riken.jp/workshop/spinperu), Ollantaytambo, Peru - 2022: chair of SPIN ARGENTINA, [International Workshop Spintronics 2022](https://fisica.cab.cnea.gov.ar/spin2022/), Bariloche, ARG

Publications

laurent-vila

Spin-dependent transport characterization in metallic lateral spin valves using one-dimensional and three-dimensional modeling

P. Laczkowski , M. Cosset-Cheneau , W. Savero-Torres , V. T. Pham , H. Jaffres
Physical Review B: Condensed Matter and Materials Physics (1998-2015), 2019, 99 (134436), ⟨10.1103/PhysRevB.99.134436⟩
Article dans une revue hal-02060993v1

Spin–Charge Conversion Phenomena in Germanium

Simón Oyarzún , Fabien Rortais , Juan-Carlos Rojas-Sanchez , Federico Bottegoni , Piotr Laczkowski
Journal of the Physical Society of Japan, 2017, 86 (1), ⟨10.7566/JPSJ.86.011002⟩
Article dans une revue hal-01614038v1

Evidence for spin to charge conversion in GeTe(111)

C. Rinaldi , J. C. Rojas-Sánchez , R. Wang , Y. Fu , S. Oyarzún
APL Materials, 2016, 4 (3), ⟨10.1063/1.4941276⟩
Article dans une revue hal-01614024v1

Highly efficient and tunable spin-to-charge conversion through Rashba coupling at oxide interfaces

E. Lesne , Yu Fu , S. Oyarzún , J. C. Rojas-Sánchez , D. C. Vaz
Nature Materials, 2016, 15 (12), pp.1261 - 1266. ⟨10.1038/nmat4726⟩
Article dans une revue hal-01614031v1

Spin transport in p -type germanium

F Rortais , S. Oyarzún , F. Bottegoni , J Rojas-Sánchez , P Laczkowski
Journal of Physics: Condensed Matter, 2016, 28 (16), ⟨10.1088/0953-8984/28/16/165801⟩
Article dans une revue hal-01614027v1

Evidence for spin-to-charge conversion by Rashba coupling in metallic states at the Fe/Ge(111) interface

S. Oyarzún , A. Nandy , F. Rortais , C. Rojas-Sánchez , M. Dau
Nature Communications, 2016, 7, ⟨10.1038/ncomms13857⟩
Article dans une revue hal-01614036v1

Spin to Charge Conversion at Room Temperature by Spin Pumping into a New Type of Topological Insulator: α -Sn Films

J.C. Rojas-Sánchez , S. Oyarzún , Y. Fu , A. Marty , C. Vergnaud
Physical Review Letters, 2016, 116 (9), ⟨10.1103/PhysRevLett.116.096602⟩
Article dans une revue hal-01614026v1

Evaluation of spin diffusion length of AuW alloys using spin absorption experiments in the limit of large spin-orbit interactions

Piotr Laczkowski , Henri Jaffrès , Williams Savero Torres , J. C. Rojas-Sánchez , Yu Fu
Physical Review B: Condensed Matter and Materials Physics (1998-2015), 2015, 92 (21), pp.214405. ⟨10.1103/PhysRevB.92.214405⟩
Article dans une revue hal-01615212v1

Experimental evidences of a large extrinsic spin Hall effect in AuW alloy

P. Laczkowski , J.-C. Rojas-Sánchez , W. Savero-Torres , H. Jaffrès , N. Reyren
Applied Physics Letters, 2014, 104 (14), pp.142403. ⟨10.1063/1.4870835⟩
Article dans une revue hal-02042880v1

Spin Pumping and Inverse Spin Hall Effect in Platinum: The Essential Role of Spin-Memory Loss at Metallic Interfaces

J.-C. Rojas-Sánchez , N. Reyren , P. Laczkowski , W. Savero , J.P. Attané
Physical Review Letters, 2014, 112 (10), ⟨10.1103/PhysRevLett.112.106602⟩
Article dans une revue hal-02042890v1

Switchable Spin-Current Source Controlled by Magnetic Domain Walls

W. Savero Torres , P. Laczkowski , V. Nguyen , J. Rojas Sanchez , Laurent Vila
Nano Letters, 2014, 14 (7), pp.4016-4022. ⟨10.1021/nl501453p⟩
Article dans une revue hal-02042863v1

Spin-to-charge conversion using Rashba coupling at the interface between non-magnetic materials

J.C. Rojas Sanchez , Laurent Vila , G. Desfonds , S. Gambarelli , J. Attané
Nature Communications, 2013, 4 (1), ⟨10.1038/ncomms3944⟩
Article dans une revue hal-02042921v1

Transition from spin accumulation into interface states to spin injection in silicon and germanium conduction bands

Abhinav Jain , Juan-Carlos Rojas-Sanchez , Murat Cubukcu , Julian Peiro , Jean-Christophe Le Breton
The European Physical Journal B: Condensed Matter and Complex Systems, 2013, 86, pp.140. ⟨10.1140/EPJB/E2013-31067-7⟩
Article dans une revue hal-00921473v1
Image document

Crossover from Spin Accumulation into Interface States to Spin Injection in the Germanium Conduction Band

A. Jain , C. Rojas-Sánchez , M. Cubukcu , J. Peiro , J. C. Le Breton
Physical Review Letters, 2012, 109, pp.106603. ⟨10.1103/PhysRevLett.109.106603⟩
Article dans une revue hal-01683673v1