Dr Monca Ciomaga Hatnean

I worked firstly as a Research Fellow and then as a Research Focused Assistant Professor (previously called Senior Research Fellow) in the Superconductivity and Magnetism Group, from January 2013 to August 2021. I have extensive expertise in materials synthesis, crystal growth and materials characterisation techniques.

Overview of my research work

My research work involved the crystal growth and study of single crystals of various compounds (oxides, borides, chalcogenides and intermetallic magnetic and superconducting materials). The materials that I studied have a wide range of physical properties, from multiferroics and frustrated magnets to a variety of newly discovered exotic states of matter (Topological Insulators, Skyrmion lattices).

The investigation of the physics of all the materials that I produced at 糖心TV involved a wide range of techniques, including in house magnetic, thermodynamic and transport measurements, as well as the use of central facilities using X-ray diffraction, neutron scattering and muon spectroscopy techniques.

My research profile

From June 2018 to August 2021, I worked as a Research Focused Assistant Professor (previously called Senior Research Fellow) in the Superconductivity and Magnetism group. I initially joined the research group as a Post Doctoral Research Fellow in January 2013, working jointly with Prof. Dr Geetha Balakrishnan, Prof. Dr Don McK. Paul, Dr Martin R. Lees and Dr Oleg A. Petrenko on various research projects.

I have previously completed a PhD in Chemistry at Paris-Sud University, Orsay, France in December 2012, under the joint supervision of Prof. Dr Loreynne Pinsard-Gaudart and Dr Habil. Sylvain Petit. I worked on the at and .

Research interests/highlights and expertise

Study of newly discovered states of matter, such as superconductors, topological insulators, skyrmion lattices. My contributions include growth and characterisation of single crystals of topological and Kondo insulators, SmB₆, Sm_1鈭抶Ce_xB₆, YbB₁₂and FeSi, superconductors, PdBi_x(x = 1 and 2) and Ru₇B₃, materials which exhibit a skyrmion lattice, Cu₂OSeO₃, GaV₄S₈and Co_10鈭�xZn_10鈭�yMn_x+y.
Study of magnetic materials, and in particular systems that exhibit puzzling magnetic behaviours. My contributions include the growth by the floating zone method of single crystals of rare earth zirconate, titanate and hafnate oxides, R₂M₂O₇(M = Zr, Ti, and Hf), garnets (Yb₃Ga₅O₁₂), rare earth tetraborides and hexaborides, RB₄and RB₆.
Study of layered metal chalcogenides with various physical properties, such as semiconductors, superconductors. My contributions include growth and characterisation of single crystals of the 2D ferromagnet Cr₂Ge₂Te₆, Mn₃Si₂Te₆ and the transition metal dichalcogenide VSe₂.
Study of the correlation between crystallographic structures and the physical properties of materials, from the investigation of polymorphism and phase transitions to design of materials in order to tune/enhance their properties. My contribution includes the growth by floating zone method of single crystals of rare earth disilicate compounds, R₂Si₂O₇(R = Ho, Er, and Tm) and characterisation of the different polymorphs exhibited by these materials.
Study of multiferroic compounds and materials that could exhibit magnetoelectric coupling, due to their possible applications in spintronics. My contributions include growth and study of ferromagnets such as R_1鈭�xSr_xMnO₃(R = Pr, Nd), study of the physical properties and spin dynamics by inelastic neutron scattering in single crystals of the candidate magnetoelectric materials, Ga_2鈭�xFe_xO₃ferrimagnets.
Determination of the crystallographic parameters, magnetic structure and spin dynamics of materials. My expertise in powder and single crystal X-ray and neutron diffraction, as well as inelastic neutron scattering techniques are of great importance for the understanding of the materials studied. I am a confident and advanced user of various software packages used to analyse the data collected.

Teaching

From 2018 to 2021, I have been running the teaching activities associated with the Microprocessors Laboratory, as part of the Physics Skills module for the 2^nd year undergraduate students. Details are available on the .

List of Publications

A full and up-to-date list of all my publications (including number of citations) can be found by visiting the databases below.

My full list of publications, as of September 2021:

2021

57. Physical Review Materials 5, 094402 (2021).

C. Macchiutti, J. R. Jesus, F. B. Carneiro, L. Bufai莽al, M. Ciomaga Hatnean, G. Balakrishnan, and E. M. Bittar.

56. Physical Review B 104, 064425 (2021).

L. 脴rduk Sandberg, R. Edberg, I.-M. Berg Bakke, K. S. Pedersen, M. Ciomaga Hatnean, G. Balakrishnan, L. Mangin-Thro, A. Wildes, B. F氓k, G. Ehlers, G. Sala, P. Henelius, K. Lefmann, and P. P. Deen.

55. Physical Review B 103, 214449 (2021).

M. L茅ger, E. Lhotel, E. Ressouche, K. Beauvois, F. Damay, C. Paulsen, A. Al-Mawla, E. Suard, M. Ciomaga Hatnean, G. Balakrishnan, and S. Petit.

54. Physical Review Letters 126, 247201 (2021).

M. L茅ger, E. Lhotel, M. Ciomaga Hatnean, J. Ollivier, A. R. Wildes, S. Raymond, E. Ressouche, G. Balakrishnan, and S. Petit.

53. Physical Review B 103, 134434 (2021).

$_{D. D. Khalyavin, P. Manuel, M. Ciomaga Hatnean, and O. A. Petrenko.}$

52. Physical Review B 103, 134433 (2021).

$_{N. Qureshi, A. Wildes, C. Ritter, B. F氓k, S. X. M. Riberolles, M. Ciomaga Hatnean, and O. A. Petrenko.}$

51. Physical Review Materials 5, 055001 (2021).

Y. S. Eo, A. Rakoski, S. Sinha, D. Mihaliov, W. T. Fuhrman, S. R. Saha, P. F. S. Rosa, Z. Fisk, M. Ciomaga Hatnean, G. Balakrishnan, J. R. Chamorro, W. Adam Phelan, S. M. Koohpayeh, T. M. McQueen, B. Kang, M.-s. Song, B. Cho, M. S. Fuhrer, J. Paglione, and 脟. Kurdak.

50. Acta Materialia 208, 116717 (2021).

A. Mostaed, B. Walkley, M. Ciomaga Hatnean, G. Balakrishnan, M. R. Lees, R. Beanland, D. C. Sinclair, and I. M. Reaney.

49. Physical Review B 103, 024428 (2021).

T. J. Hicken, M. N. Wilson, K. J. A. Franke, B. M. Huddart, Z. Hawkhead, M. Gomil拧ek, S. J. Clark, F. L. Pratt, A. 艩tefan膷i膷, A. E. Hall, M. Ciomaga Hatnean, G. Balakrishnan, and T. Lancaster.

2020

48. Physical Review B 102, 205403 (2020).

P. Buchsteiner, L. Harmsen, M. Ciomaga Hatnean, G. Balakrishnan, and M. Wenderoth.

47. iScience 23, 101632 (2020).

M. Hartstein, H. Liu, Y.-T. Hsu, B. S. Tan, M. Ciomaga Hatnean, G. Balakrishnan, and S. E. Sebastian.

46. Crystals 10, 827 (2020).

M. Ciomaga Hatnean, T. Ahmad, M. Walker, M. R, Lees, and G. Balakrishnan.

45. Crystal Growth & Design 20, 6636-6648 (2020).

M. Ciomaga Hatnean, O. A. Petrenko, M. R, Lees, T. E. Orton, and G. Balakrishnan.

44. Physical Review B 102, 060407(R) (2020).

D. Lan莽on, V. Scagnoli, U. Staub, O. A. Petrenko, M. Ciomaga Hatnean, E. Canevet, R. Sibille, S. Francoual, J. R. L. Mardegan, K. Beauvois, G. Balakrishnan, L. J. Heyderman, Ch. R眉egg, and T. Fennell.

43. Physical Review B 101, 205125 (2020).

M. D. Watson, I. Markovi膰, F. Mazzola, A. Rajan, E. A. Morales, D. M. Burn, T. Hesjedal, G. van der Laan, S. Mukherjee, T. K. Kim, C. Bigi, I. Vobornik, M. Ciomaga Hatnean, G. Balakrishnan, and P. D. C. King.

42. Physical Review B 101, 155109 (2020).

Y. S. Eo, S. Wolgast, A. Rakoski, D. Mihaliov, B. Y. Kang, M. S. Song, B. K. Cho, M. Ciomaga Hatnean, G. Balakrishnan, Z. Fisk, S. R. Saha, X. Wang, J. Paglione, and 脟. Kurdak.

41. Physical Review B 101, 035404 (2020).

G. Vinai, C. Bigi, A. Rajan, M. D. Watson, T. -L. Lee, F. Mazzola, S. Modesti, S. Barua, M. Ciomaga Hatnean, G. Balakrishnan, P. D. C. King, P. Torelli, G. Rossi, and G. Panaccione.

2019

40. AIP Advances 9, 125228 (2019).

K. J. A. Franke, P. R. Dean, M. Ciomaga Hatnean, M. T. Birch, D. D. Khalyavin, P. Manuel, T. Lancaster, G. Balakrishnan, and P. D. Hatton.

39. Physical Review B 100, 205407 (2019).

P. Buchsteiner, F. Sohn, J. G. Horstmann, J. Voigt, M. Ciomaga Hatnean, G. Balakrishnan,4 C. Ropers, P. E. Bl枚chl, and M. Wenderoth.

38. Review of Scientific Instruments 90, 103904 (2019).

H.-L. Kim, M. J. Coak, J. C. Baglo, K. Murphy, R. W. Hill, M. Sutherland, M. Ciomaga Hatnean, G. Balakrishnan, and J.-G. Park.

37. Physical Review B 100, 134102 (2019).

C. Toulouse, D. Amoroso, C. Xin, P. Veber, M. Ciomaga Hatnean, G. Balakrishnan, M. Maglione, P. Ghosez, J. Kreisel, and M. Guennou.

36. Physical Review B 100, 024518 (2019).

A. S. Cameron, Y. S. Yerin, Y. V. Tymoshenko, P. Y. Portnichenko, A. S. Sukhanov, M. Ciomaga Hatnean, D. McK. Paul, G. Balakrishnan, R. Cubitt, A. Heinemann, and D. S. Inosov.

35. The European Physical Journal Special Topics 228, 703-712 (2019).

V. Granata, L. Rocco, A. Ubaldini, M. R. Lees, R. Fittipaldi, M. Ciomaga Hatnean, S. Pace, G. Balakrishnan, and A. Vecchione.

34. Crystals 9, 211 (2019).

D. Brunt, M. Ciomaga Hatnean, O. A. Petrenko, M. R. Lees, and G. Balakrishnan.

33. CrystEngComm 21, 502-512 (2019).

C. Xin, P. Veber, M. Guennou, C. Toulouse, N. Valle, M. Ciomaga Hatnean, G. Balakrishnan, R. Haumont, R. Saint Martin, M. Velazquez, A. Maillard, D. Rytz, M. Josse, M. Maglione, and J. Kreisel.

2018

32. Nature Communications 9, 3786 (2018).

E. Lhotel, S. Petit, M. Ciomaga Hatnean, J. Ollivier, H. Mutka, E. Ressouche, M. R. Lees, and G. Balakrishnan.

31. Physical Review B 98, 054428 (2018).

K. J. A. Franke, B. M. Huddart, T. J. Hicken, F. Xiao, S. J. Blundell, F. L. Pratt, M. Crisanti, J. A. T. Barker, S. J. Clark, A. 艩tefan膷i膷, M. Ciomaga Hatnean, G. Balakrishnan, and T. Lancaster.

30. Nature Physics 14, 711-715 (2018).

R. Sibille, N. Gauthier, H. Yan, M. Ciomaga Hatnean, J. Ollivier, B. Winn, U. Filges, G. Balakrishnan, M. Kenzelmann, N. Shannon, and T. Fennell.

29. Physical Review B 97, 134403 (2018).

J. C. Loudon, A. O. Leonov, A. N. Bogdanov, M. Ciomaga Hatnean, and G. Balakrishnan.

28. Physical Review B 97, 134430 (2018).

S. Gao, K. Guratinder, U. Stuhr, J. S. White, M. Mansson, B. Roessli, T. Fennell, V. Tsurkan, A. Loidl, M. Ciomaga Hatnean, G. Balakrishnan, S. Raymond, L. Chapon, V. O. Garlea, A. T. Savici, A. Cervellino, A. Bombardi, D. Chernyshov, Ch. R眉egg, J. T. Haraldsen, and O. Zaharko.

27. Nature Physics 14, 166 (2018).

M. Hartstein, W. H. Toews, Y.-T. Hsu, B. Zeng, X. Chen, M. Ciomaga Hatnean, Q. R. Zhang, S. Nakamura, A. S. Padgett, G. Rodway-Gant, J. Berk, M. K. Kingston, G. H. Zhang, M. K. Chan, S. Yamashita, T. Sakakibara, Y. Takano, J.-H. Park, L. Balicas, N. Harrison, N. Shitsevalova, G. Balakrishnan, G. G. Lonzarich, R. W. Hill, M. Sutherland, and S. E. Sebastian.

26. Journal of Physics: Condensed Matter 30, 16LT01 (2018).

H. Liu, M. Hartstein, G. J. Wallace, A. J. Davies, M. Ciomaga Hatnean, M. D. Johannes, N. Shitsevalova, G. Balakrishnan and S. E. Sebastian.

2017

25. Physical Review X 7, 041028 (2017).

N. Martin, P. Bonville, E. Lhotel, J. Robert, S. Guitteny, A. Wildes, C. Decorse, M. Ciomaga Hatnean, G. Balakrishnan, I. Mirebeau, and S. Petit.

* Acta Crystallographica A73, C827 (2017).

M. Ciomaga Hatnean, M. R. Lees, O. A. Petrenko and G. Balakrishnan.

* Acta Crystallographica A73, C826 (2017).

G. Balakrishnan, M. Ciomaga Hatnean, A. Stefancic and M. R. Lees.

24. Scientific Reports 7, 10964 (2017).

S. Barua, M. Ciomaga Hatnean, M. R. Lees, and G. Balakrishnan.

23. Nature Communications 8, 894 (2017).

R. Sibille, E. Lhotel, M. Ciomaga Hatnean, G. Nilsen, G. Ehlers, A. Cervellino, E. Ressouche, M. Frontzek, O. Zaharko, V. Pomjakushin, H. C. Walker, D. Adroja, H. Luetkens, C. Baines, A. Amato, G. Balakrishnan, T. Fennell, and M. Kenzelmann.

22. Physical Review B 95, 205403 (2017).

S. Biswas, M. Ciomaga Hatnean, G. Balakrishnan, and A. Bid.

21. Physical Review B Rapid Communication 95, 020410 (R) (2017).

P. K. Biswas, M. Legner, G. Balakrishnan, M. Ciomaga Hatnean, M. R. Lees, D. McK. Paul, E. Pomjakushina, T. Prokscha, A. Suter, T. Neupert, and Z. Salman.

2016

20. Journal of Physics: Condensed Matter 29, 075902 (2016).

M. Ciomaga Hatnean, R. Sibille, M. R. Lees, M. Kenzelmann, V. Ban, V. Pomjakushin, and G. Balakrishnan.

19. Physical Review B 94, 134428 (2016).

P. Bonville, S. Guitteny, A. Gukasov, I. Mirebeau, S. Petit, C. Decorse, M. Ciomaga Hatnean, and G. Balakrishnan.

18. Physical Review B 94, 165153 (2016).

S. Petit, E. Lhotel, S. Guitteny, O. Florea, J. Robert, P. Bonville, I. Mirebeau, J. Ollivier, H. Mutka, E. Ressouche, C. Decorse, M. Ciomaga Hatnean, and G. Balakrishnan.

17. Journal of Alloys and Compounds 682, 825-831 (2016).

A. Oleaga, A. Salazar, M. Ciomaga Hatnean, and G. Balakrishnan.

* Acta Crystallographica A72, s306 (2016).

R. Sibille, T. Fennell, M. Ciomaga Hatnean, E. Lhotel, D. Keen, G. Balakrishnan, and M. Kenzelmann.

16. Physical Review B 94, 024436 (2016).

R. Sibille, E. Lhotel, M. Ciomaga Hatnean, G. Balakrishnan, B. Fk, N. Gauthier, T. Fennell, and M. Kenzelmann.

15. Crystals 6, 79 (2016).

M. Ciomaga Hatnean, C. Decorse, M. R. Lees, O. A. Petrenko, and G. Balakrishnan.

14. Nature Physics 12, 746-750 (2016).

S. Petit, E. Lhotel, B. Canals, M. Ciomaga Hatnean, J. Ollivier, H. Mutka, E. Ressouche, A. R. Wildes, M. R. Lees, and G. Balakrishnan.

2015

13. Physical Review Letters 115, 197202 (2015).

E. Lhotel, S. Petit, S. Guitteny, O. Florea, M. Ciomaga Hatnean, C. Colin, E. Ressouche, M. R. Lees, and G. Balakrishnan.

12. Physical Review B 92, 085103 (2015).

S. Biswas, R. Nagarajan, S. Sarkar, K. Rafsanjani Amin, M. Ciomaga Hatnean, S. Tewari, G. Balakrishnan, and A. Bid.

11. Science 349, 287-290 (2015).

B. S. Tan, Y.-T. Hsu, B. Zeng, M. Ciomaga Hatnean, N. Harrison, Z. Zhu, M. Hartstein, M. Kiourlappou, A. Srivastava, M. D. Johannes, T. P. Murphy, J.-H. Park, L. Balicas, G. G. Lon- zarich, G. Balakrishnan, and S. E. Sebastian.

10. Physical Review B 92, 024409 (2015).

A. Oleaga, A. Salazar, M. Ciomaga Hatnean, and G. Balakrishnan.

9. Physical Review B 91, 224408 (2015).

T. Lancaster, R. C. Williams, I. O. Thomas, F. Xiao, F. L. Pratt, S. J. Blundell, J. C. Loudon, T. Hesjedal, S. J. Clark, P. D. Hatton, M. Ciomaga Hatnean, D. S. Keeble, and G. Balakrishnan.

8. Journal of Crystal Growth 418, 1 (2015).

M. Ciomaga Hatnean, M. R. Lees, and G. Balakrishnan.

7. Physical Review B 91, 174416 (2015).

M. Ciomaga Hatnean, M. R. Lees, O. A. Petrenko, D. S. Keeble, G. Balakrishnan, M. J. Gutmann, V. V. Klekovkina, and B. Z. Malkin.

2014

6. Journal of Crystal Growth 404, 223-230 (2014).

R. Fittipaldi, L. Rocco, M. Ciomaga Hatnean, V. Granata, M. R. Lees, G. Balakrishnan, and A. Vecchione.

5. Materials Research Express 1, 026109 (2014).

M. Ciomaga Hatnean, C. Decorse, M. R. Lees, O. A. Petrenko, D. S. Keeble, and G. Balakrishnan.

4. Physical Review B Rapid Communication 89, 161107 (R) (2014). (link)

P. K. Biswas, Z. Salman, T. Neupert, E. Morenzoni, E. Pomjakushina, F. von Rohr, K. Conder, G. Balakrishnan, M. Ciomaga Hatnean, M. R. Lees, D. McK Paul, A. Schilling, C. Baines, H. Luetkens, R. Khasanov, and A. Amato.

2013

3. Scientific Reports 3, 3071 (2013).

M. Ciomaga Hatnean, M. R. Lees, D. McK. Paul, and G. Balakrishnan.

2. Journal of Solid State Chemistry 200, 110-116 (2013).

M. Ciomaga Hatnean, L. Pinsard-Gaudart, M. T. Fernandez-Diaz, S. Petit, A. Dixit, G. Lawes, and R. Suryanarayanan.

2012

1. The European Physical Journal Special Topics 213, 69-76 (2012).

M. Hatnean, J. Robert, M.T. Fernandez Diaz, E. Ressouche, A. Cousson, L. Pinsard-Gaudart, and S. Petit.

* Abstracts published in Conference Proceedings, not refereed.

Preprints of recent research projects

Preprints of some my recent research projects, as of June 2021:

Ke-Jun Xu et al., "Intrinsic one-dimensional conducting channels in the Kondo insulator SmB₆", under review. ()
H. Liu et al., "f-electron hybridised metallic Fermi surface in magnetic field-induced metallic YbB₁₂", under review. ()
D. J. Voneshen et al., "Kagome modes, a new route to ultralow thermal conductivity?". ()

Other professional activities

Since 2019, topic Editor for .
Reviewer for scientific journals, such as: (member of the Reviewer Board), Journal of Solid State Chemistry, Journal of Physics: Condensed Matter, Electronics, Symmetry, Scientific Reports, Journal of Magnetism and Magnetic Materials, Materials Chemistry and Physics, ACS Omega.
2015-2021: Member of the Institute of Physics (IOP).
2020-2021: Member of the American Chemical Society (ACS).

Public Engagement, Outreach and Widening Participation

From 2018 to 2021, I coordinated a science public engagement and outreach programme, entitled 鈥淚t鈥檚 a matter of crystals鈥�. As part of this project, I delivered workshops in schools, public libraries and at science events/fairs. The project 鈥�It鈥檚 a matter of crystals鈥� aimed to explain the importance of materials research, and particularly, the study of crystals, in daily life. I wished to emphasise the fundamental research interest in the growth of single crystals of materials and to draw attention to the wide range of applications that crystals have in society and economy.

Events and activities

Here's a list with some of the recent public engagement, widening participation and outreach events and activities in which I have been involved while at the University of 糖心TV.

XMaS:

Science Festivals & Family Days:

.
.
Festival of the Imagination (16th-17th October 2015).
.

Widening Participation & Outreach:

Public Engagement:

Press Release, News Article & Interview:

How to make Christmas 2020 really different.
The world's most famous table: 150 years of Periodic Law.
Short interviews in the Vic Minnett radio show (29^th January and 19^th February 2019) @ BBC Coventry & 糖心TVshire.
糖心TV Press Release: Science Gala 2019.
.

I have received recognition for my public engagement, outreach and widening participation work through the nomination to the University Awards 2019, both in the individual and team nominations (as part of my contribution to the XMaS team).

Publications

A full and up-to-date list of all my publications (including number of citations) can be accessed or by visiting the database below.

Write to

If you have any questions about the research work carried out by Dr Monica Ciomaga Hatnean while at the University of 糖心TV, please email Prof. Geetha Balakrishnan at the following email address:

g.balakrishnan@warwick.ac.uk

Contact Details

1. Materials Discovery Laboratory, Department of Materials (D-MATL), Swiss Federal Institute of Technology Zurich, ETHZ, 8093 Zurich, Switzerland.

2. Laboratory for Multiscale materials eXperiments, Paul Scherrer Institut, 5232 Villigen PSI, Switzerland.

E-mail me:

monica dot ciomaga at mat dot ethz dot ch

monica dot ciomaga at psi dot ch

Find out more about me on my webpage:

Follow me on Twitter:

@mciomagahatnean

Connect with me on LinkedIn:

monicaciomagahatnean