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Dr. Felicia TOLEA

Scientific Researcher II

Laboratory of Magnetism and Superconductivity

felicia[DOT]tolea[AT]infim[DOT]ro

Positions

CS II

Publications

1. Formation of skyrmion phase in the Fe-Co-Si system by mechanochemical activation
Authors: Sorescu, M; Tolea, F; Sofronie, M; Kuncser, V; Craig, AJ; Aitken, JA

Published: SEP 1 2024, PHYSICA B-CONDENSED MATTER, 688, 416153, DOI: 10.1016/j.physb.2024.416153

2. Magnetic Shape Memory Nanocomposites Assembled with High Speed High Pressure Torsion
Authors: Gurau, C; Tolea, F; Cimpoesu, N; Sofronie, M; Ceoromila, AC; Stefanescu, C; Gurau, G

Published: MAR 2024, NANOMATERIALS, 14, 405, DOI: 10.3390/nano14050405

3. Thermodynamic and Kinetic Simulations Used for the Study of the Influence of Precipitates on Thermophysical Properties in NiTiCu Alloys Obtained by Spark Plasma Sintering
Authors: Cirstea, CD; Povoden-Karadeniz, E; Cirstea, V; Tolea, F; Kozeschnik, E

Published: MAR 2024, NANOMATERIALS, 14, 461, DOI: 10.3390/nano14050461

4. Kinetics and the Effect of Thermal Treatments on the Martensitic Transformation and Magnetic Properties in Ni49Mn32Ga19 Ferromagnetic Shape Memory Ribbons
Authors: Tolea, F; Popescu, B; Bartha, C; Enculescu, M; Tolea, M; Sofronie, M

Published: JAN 2023, MAGNETOCHEMISTRY, 9, 7, DOI: 10.3390/magnetochemistry9010007

5. Kinetics and the Effect of Thermal Treatments on the Martensitic Transformation and Magnetic Properties in Ni49Mn32Ga19 Ferromagnetic Shape Memory Ribbons
Authors: Tolea, F; Popescu, B; Bartha, C; Enculescu, M; Tolea, M; Sofronie, M

Published: JAN 2023, MAGNETOCHEMISTRY, 9, 7, DOI: 10.3390/magnetochemistry9010007

6. Effects of mechanochemical activation on the structural, magnetic and optical properties of yttrium iron garnet-graphene nanoparticles
Authors: Glasser, S; Tolea, F; Craig, AJ; Sofronie, M; Aitken, JA; Sorescu, M

Published: FEB 1 2023, PHYSICA B-CONDENSED MATTER, 650, 414501, DOI: 10.1016/j.physb.2022.414501

7. MICROSTRUCTURE, MAGNETIC AND MAGNETOSTRICTIVE BEHAVIOUR IN RAPIDLY QUENCHED OFF-STOICHIOMETRIC Ni-Mn-Ga FERROMAGNETIC SHAPE MEMORY ALLOYS
Authors: Sofronie, M; Tolea, F; Enculescu, M; Pasuk, I; Popescu, B

Published: 2022, ROMANIAN REPORTS IN PHYSICS, 74, 503, DOI:

8. Unidirectional Magnetic Anisotropy in Molybdenum Dioxide-Hematite Mixed-Oxide Nanostructures
Authors: Tolea, F; Sorescu, M; Diamandescu, L; Iacob, N; Tolea, M; Kuncser, V

Published: MAR 2022, NANOMATERIALS, 12, 938, DOI: 10.3390/nano12060938

9. SOME ASPECTS REGARDING PRECIPITATES IN THE NiTi SHAPE MEMORY MATERIALS
Authors: Cirstea, CD; Tolea, F; Patroi, D; Cirstea, V; Tsakiris, V

Published: 2022, ROMANIAN JOURNAL OF PHYSICS, 67, 903, DOI:

10. Magnetic and Magnetostrictive Properties of Ni50Mn20Ga27Cu3 Rapidly Quenched Ribbons
Authors: Sofronie, M; Tolea, M; Popescu, B; Enculescu, M; Tolea, F

Published: SEP 2021, MATERIALS, 14, DOI: 10.3390/ma14185126

11. The Effect of the In-Situ Heat Treatment on the Martensitic Transformation and Specific Properties of the Fe-Mn-Si-Cr Shape Memory Alloys Processed by HSHPT Severe Plastic Deformation
Authors: Gurau, C; Gurau, G; Tolea, F; Popescu, B; Banu, M; Bujoreanu, LG

Published: AUG 2021, MATERIALS, 14, DOI: 10.3390/ma14164621

12. Long- and short-range order in the Ni52Co2Fe20Ga26 ferromagnetic Heusler alloy
Authors: Macovei, D; Tolea, F

Published: AUG 2021, JOURNAL OF APPLIED CRYSTALLOGRAPHY, 54, 1216, DOI: 10.1107/S1600576721006415

13. Multifunctional GaFeO3 Obtained via Mechanochemical Activation Followed by Calcination of Equimolar Nano-System Ga2O3-Fe2O3
Authors: Diamandescu, L; Tolea, F; Feder, M; Vasiliu, F; Mercioniu, I; Enculescu, M; Popescu, T; Popescu, B

Published: JAN 2021, NANOMATERIALS, 11, DOI: 10.3390/nano11010057

14. Martensitic Transformation and Magnetic Properties of Ni57Fe18Ga25 Shape Memory Alloy Subjected to Severe Plastic Deformation
Authors: Popescu, B; Gurau, C; Gurau, G; Tolea, M; Sofronie, M; Tolea, F

Published: OCT 2021, TRANSACTIONS OF THE INDIAN INSTITUTE OF METALS, 74, 2498, DOI: 10.1007/s12666-021-02293-8

15. EFFECT OF Mn SUBSTITUTION ON THE STRUCTURAL, MAGNETIC AND MAGNETOSTRICTIVE PROPERTIES OF Fe-Pd FERROMAGNETIC SHAPE MEMORY RIBBONS
Authors: Sofronie, M; Enculescu, M; Crisan, AD; Tolea, F

Published: 2020, ROMANIAN REPORTS IN PHYSICS, 72, DOI:

16. Magnetic and magnetostrictive properties of the ternary Fe67.5Pd30.5Ga2 ferromagnetic shape memory ribbons
Authors: Sofronie, M; Tolea, F; Tolea, M; Popescu, B; Valeanu, M

Published: JUL 2020, JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS, 142, DOI: 10.1016/j.jpcs.2020.109446

17. Structural Change in Ni-Fe-Ga Magnetic Shape Memory Alloys after Severe Plastic Deformation
Authors: Gurau, G; Gurau, C; Tolea, F; Sampath, V

Published: JUN 2 2019, MATERIALS, 12, DOI: 10.3390/ma12121939

18. STRUCTURAL EVOLUTION OF THE NiTi/NiFeGa SMART HYBRID MATERIAL DURING SEVERE PLASTIC DEFORMATION
Authors: Gurau, C; Gurau, G; Tolea, F; Sampath, V

Published: JUL-SEP 2019, DIGEST JOURNAL OF NANOMATERIALS AND BIOSTRUCTURES, 14, 546, DOI:

19. Structural, Magnetic and Hyperfine Properties of Molybdenum Dioxide-Hematite Mixed Oxide Nanostructures
Authors: Trotta, R; Tolea, F; Valeanu, M; Diamandescu, L; Grabias, A; Sorescu, M

Published: 2018, MRS ADVANCES, 3, 2892, DOI: 10.1557/adv.2018.420

20. Magneto-optical properties of Ce3+ and Tb3+-doped silico-phosphate sol-gel thin films
Authors: Stefan, CR; Elisa, M; Vasiliu, IC; Sava, BA; Boroica, L; Sofronie, M; Tolea, F; Enculescu, M; Kuncser, V; Beldiceanu, A; Volceanov, A; Eftimie, M

Published: AUG 1 2018, APPLIED SURFACE SCIENCE, 448, 480, DOI: 10.1016/j.apsusc.2018.04.067

21. (Fe, Nd) codoped ZnO micro- and nanostructures with multifunctional characteristics like photocatalytic activity, optical and ferromagnetic properties
Authors: Diamandescu, L; Cernea, M; Tolea, F; Secu, EC; Trusca, R; Secu, M; Enculescu, M

Published: DEC 1 2018, CERAMICS INTERNATIONAL, 44, 21975, DOI: 10.1016/j.ceramint.2018.08.310

22. Martensitic transformation and related properties of Fe69.4Pd30.6 ferromagnetic shape memory ribbons
Authors: Tolea, F; Sofronie, M

Published: NOV-DEC 2018, JOURNAL OF OPTOELECTRONICS AND ADVANCED MATERIALS, 20, 706, DOI:

23. Thermal memory fading by heating to a lower temperature: Experimental data on polycrystalline NiFeGa ribbons and 2D statistical model predictions
Authors: Tolea, F; Tolea, M; Valeanu, M

Published: MAY 2017, SOLID STATE COMMUNICATIONS, 257, 41, DOI: 10.1016/j.ssc.2017.04.003

24. Specific Changes in the Magnetoresistance of Ni-Fe-Ga Heusler Alloys Induced by Cu, Co, and Al Substitutions
Authors: Tolea, F; Tolea, M; Sofronie, M; Popescu, B; Crisan, A; Leca, A; Valeanu, M

Published: APR 2017, IEEE TRANSACTIONS ON MAGNETICS, 53, DOI: 10.1109/TMAG.2016.2628386

25. Structure, Magnetic Properties and Hyperfine Parameters of Nd-Substituted Ni-Fe-Ga Heusler Alloys
Authors: Sorescu, M; Tolea, F; Valeanu, M; Sofronie, M

Published: 2017, MRS ADVANCES, 2, 1346, DOI: 10.1557/adv.2017.70

26. Tuning the transmission phase by the dot size
Authors: Tolea, F; Tolea, M

Published: JAN 2017, PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES, 85, 173, DOI: 10.1016/j.physe.2016.08.034

27. Characterization of TiNi shape memory alloys obtained by spark plasma sintering process
Authors: Cirstea, CD; Tolea, F; Leonat, L; Lungu, M; Cucos, A; Cirstea, V; Tsakiris, V

Published: SEP-OCT 2016, JOURNAL OF OPTOELECTRONICS AND ADVANCED MATERIALS, 18, 862, DOI:

28. Magnetoelastic properties in polycrystalline ferromagnetic shape memory Heusler alloys
Authors: Sofronie, M; Tolea, F; Crisan, AD; Popescu, B; Valeanu, M

Published: 2016, 21ST EUROPEAN CONFERENCE ON FRACTURE, (ECF21), 2, 1537, DOI: 10.1016/j.prostr.2016.06.194

29. The relationship between magnetism and magneto-optical effects in rare earth doped aluminophosphate glasses
Authors: Valeanu, M; Sofronie, M; Galca, AC; Tolea, F; Elisa, M; Sava, B; Boroica, L; Kuncser, V

Published: FEB 25 2016, JOURNAL OF PHYSICS D-APPLIED PHYSICS, 49, DOI: 10.1088/0022-3727/49/7/075001

30. Effect of thermal treatments in Ni-Fe-Ga with Co substitutions and Ni-Mn-Ga melt spun ribbons
Authors: Tolea, F; Sofronie, M; Crisan, AD; Popescu, B; Tolea, M; Valeanu, M

Published: 2016, 21ST EUROPEAN CONFERENCE ON FRACTURE, (ECF21), 2, 1480, DOI: 10.1016/j.prostr.2016.06.187

31. On the role of Fe ions on magnetic properties of doped TiO2 nanoparticles
Authors: Tolea, F; Grecu, MN; Kuncser, V; Constantinescu, SG; Ghica, D

Published: APR 6 2015, APPLIED PHYSICS LETTERS, 106, DOI: 10.1063/1.4917037

32. Distribution of plates' sizes tell the thermal history in a simulated martensitic-like phase transition
Authors: Tolea, F; Tolea, M; Sofronie, M; Valeanu, M

Published: JUL 2015, SOLID STATE COMMUNICATIONS, 213, 41, DOI: 10.1016/j.ssc.2015.04.016

33. Magnetic and Martensitic Transformations in the bulk and melt spun ribbons of Ni57-xNdxFe18Ga25 Ferromagnetic Shape Memory Alloys
Authors: Tolea, F; Crisan, AD; Sofronie, M; Tolea, M; Valeanu, M

Published: 2015, MATERIALS TODAY-PROCEEDINGS, 2, 878, DOI: 10.1016/j.matpr.2015.07.421

34. Hearing shapes of few electrons quantum drums: A configuration-interaction study
Authors: Tolea, F; Tolea, M

Published: FEB 1 2015, PHYSICA B-CONDENSED MATTER, 458, 91, DOI: 10.1016/j.physb.2014.11.013

35. SHAPE MEMORY PROPERTIES OF FeNiCoTi RIBBONS EVIDENCED BY MAGNETIC MEASUREMENTS
Authors: Tolea, F; Sofronie, M; Tolea, M; Kuncser, V; Valeanu, M

Published: APR-JUN 2015, DIGEST JOURNAL OF NANOMATERIALS AND BIOSTRUCTURES, 10, 575, DOI:

36. Ruthenium oxide-hematite magnetic ceramic nanostructures
Authors: Stroh, C; Tolea, F; Valeanu, M; Diamandescu, L; Xu, TH; Sorescu, M

Published: DEC 2015, CERAMICS INTERNATIONAL, 41, 14375, DOI: 10.1016/j.ceramint.2015.07.070

37. Nanostructured iridium oxide-hematite magnetic ceramic semiconductors
Authors: Limongelli, J; Tolea, F; Valeanu, M; Diamandescu, L; Xu, TH; Sorescu, M

Published: JAN 2015, CERAMICS INTERNATIONAL, 41, 343, DOI: 10.1016/j.ceramint.2014.08.076

38. Effect of thermal treatments on the structural and magnetic transitions in melt-spun Ni-Fe-Ga-(Co) ribbons
Authors: Tolea, F; Sofronie, M; Crisan, AD; Enculescu, M; Kuncser, V; Valeanu, M

Published: NOV 25 2015, JOURNAL OF ALLOYS AND COMPOUNDS, 650, 670, DOI: 10.1016/j.jallcom.2015.07.296

39. Magneto-Structural Properties and Magnetic Behavior of Fe-Pd Ribbons
Authors: Sofronie, MI; Tolea, F; Kuncser, V; Valeanu, MC; Filoti, G

Published: JAN 2015, IEEE TRANSACTIONS ON MAGNETICS, 51, DOI: 10.1109/TMAG.2014.2359226

40. Magnetocaloric effect in Ni-Fe-Ga Heusler alloys with Co and Al substitutions
Authors: Tolea, F; Sofronie, M; Crisan, AD; Tolea, M; Valeanu, M

Published: 2015, ESOMAT 2015 - 10TH EUROPEAN SYMPOSIUM ON MARTENSITIC TRANSFORMATIONS, 33, DOI: 10.1051/matecconf/20153305008

41. Structural and magnetic properties of Li2O-Fe2O3 ceramic nanostructures
Authors: Sorescu, M; Bushunow, V; Diamandescu, L; Tolea, F; Valeanu, M; Xu, TH

Published: MAY 2014, CERAMICS INTERNATIONAL, 40, 5395, DOI: 10.1016/j.ceramint.2013.10.120

42. Influence of mechanical milling on the physical properties of SmCo5/Fe65Co35 type hard/soft magnetic nanocomposite
Authors: Dorolti, E; Trifu, AV; Isnard, O; Chicinas, I; Tolea, F; Valeanu, M; Pop, V

Published: MAY 25 2013, JOURNAL OF ALLOYS AND COMPOUNDS, 560, 194, DOI: 10.1016/j.jallcom.2013.01.140

43. Phase extraction in disordered isospectral shapes
Authors: Tolea, M; Ostahie, B; Nita, M; Tolea, F; Aldea, A

Published: MAR 14 2012, PHYSICAL REVIEW E, 85, DOI: 10.1103/PhysRevE.85.036604

44. Characterization of martensitic transformation in some Ni-Fe-Co-Ga ferromagnetic shape memory alloys
Authors: Tolea, F; Sofronie, M; Ghica, C; Valeanu, M

Published: MAY 2011, OPTOELECTRONICS AND ADVANCED MATERIALS-RAPID COMMUNICATIONS, 5, 566, DOI:

45. THE EFFECT OF HYDROGENATION ON THE MAGNETIC PROPERTIES OF LAYERED SPIN VALVE STRUCTURES
Authors: Kuncser, V; Tolea, F; Schinteie, G; Jepu, I; Palade, P

Published: JAN-MAR 2011, DIGEST JOURNAL OF NANOMATERIALS AND BIOSTRUCTURES, 6, 206, DOI:

46. LASER INDUCED CRYSTALLIZATION IN SPUTTERED FeSiB THIN FILMS
Authors: Tolea, F; Stoica, M; Matei, E; Cristescu, CP

Published: 2010, UNIVERSITY POLITEHNICA OF BUCHAREST SCIENTIFIC BULLETIN-SERIES A-APPLIED MATHEMATICS AND PHYSICS, 72, 256, DOI:

47. Magnetic Nanocomposites for Permanent Magnets
Authors: Tolea, F; Sofronie, M; Birsan, A; Schinteie, G; Kuncser, V; Valeanu, M

Published: 2010, TRENDS IN NANOPHYSICS: THEORY, EXPERIMENT AND TECHNOLOGY, 296, DOI: 10.1007/978-3-642-12070-1_12

48. Martensitic transformation and accompanying magnetic changes in Ni-Fe-Ga-Co alloys
Authors: Sofronie, M; Tolea, F; Kuncser, V; Valeanu, M

Published: JUN 1 2010, JOURNAL OF APPLIED PHYSICS, 107, DOI: 10.1063/1.3429231

49. Shape memory and associated properties in Fe-Mn-Si-based ribbons produced by melt-spinning
Authors: Valeanu, M; Filoti, G; Kuncser, V; Tolea, F; Popescu, B; Galatanu, A; Schinteie, G; Jianu, AD; Mitelea, I; Schinle, D; Craciunescu, CM

Published: JUL 2008, JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 320, E167, DOI: 10.1016/j.jmmm.2008.02.105

50. The colloidal route of the sol-gel process - an alternative to produce Fe3O4-SiO2 nanocomposites
Authors: Raileanu, M; Crisan, M; Ballo, A; Cosma, C; Petre, J; Stan, C; Predoi, D; Valsangiacom, CM; Tolea, F; Secu, C

Published: MAY 2007, JOURNAL OF OPTOELECTRONICS AND ADVANCED MATERIALS, 9, 1402, DOI:

51. Structural (ME, XRD, NGR, ESR) investigations on some sulphides from costesti, valea lui stan and jidostita gold ores (Southern Carpathians, Romania)
Authors: Udubasa, SS; Constantinescu, S; Grecu, MN; Popescu-Pogrion, N; Udubasa, G; Popescu, GC; Tolea, F; Popescu, IV

Published: 2007, ROMANIAN JOURNAL OF PHYSICS, 52, 104, DOI:

52. Criteria for the occurrence of negative resonant magnetoresistance in magnetic tunnel junctions
Authors: Tolea, M; Aldea, A; Tolea, F

Published: SEP 2006, PHYSICA STATUS SOLIDI B-BASIC SOLID STATE PHYSICS, 243, R86, DOI: 10.1002/pssb.200642347

53. Mossbauer spectroscopy and magnetic measurements on Fe-Ni-Co-Ti shape memory alloys
Authors: Tolea, F; Schinteie, G; Popescu, B

Published: AUG 2006, JOURNAL OF OPTOELECTRONICS AND ADVANCED MATERIALS, 8, 1506, DOI:

54. Effects of the Severe Plastic Deformation on the Magnetic Properties of Zr13Co87 Ribbons
Authors: Popescu, B; Palade, P; Sofronie, M; Kuncser, A; Gurau, C; Gurau, G; Tolea, F

Published: , METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, DOI: 10.1007/s11661-021-06507-y

55. MICROSTRUCTURE, MAGNETIC AND MAGNETOSTRICTIVE BEHAVIOUR IN RAPIDLY QUENCHED OFF-STOICHIOMETRIC Ni-Mn-Ga FERROMAGNETIC SHAPE MEMORY ALLOYS
Authors: Sofronie, M; Tolea, F; Enculescu, M; Pasuk, I; Popescu, B

Published: , ROMANIAN REPORTS IN PHYSICS, 2022, DOI: 503

56. Martensitic Transformation and Magnetic Properties of Ni57Fe18Ga25 Shape Memory Alloy Subjected to Severe Plastic Deformation
Authors: Popescu, B; Gurau, C; Gurau, G; Tolea, M; Sofronie, M; Tolea, F

Published: , TRANSACTIONS OF THE INDIAN INSTITUTE OF METALS, DOI: 10.1007/s12666-021-02293-8

57. SOME ASPECTS REGARDING PRECIPITATES IN THE NiTi SHAPE MEMORY MATERIALS
Authors: Cirstea, CD; Tolea, F; Patroi, D; Cirstea, V; Tsakiris, V

Published: , ROMANIAN JOURNAL OF PHYSICS, 2022, DOI: 903

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