Publications
2023
66. V. C. Ciomaga Hatnean, A. Pui, A. Simonov, M. Ciomaga Hatnean. Crystal growth of the R2SiO5 compounds (R = Dy, Ho, and Er) by the floating zone method using a laser-diode-heated furnace. Crystals 13, 1687 (2023).
65. C. Bigi, L. Qiao, C. Liu, P. Barone, M. Ciomaga Hatnean, G.-R. Siemann, B. Achinuq, D. A. Mayoh, G. Vinai, V. Polewczyk, D. Dagur, F. Mazzola, P. Bencok, T. Hesjedal, G. van der Laan, W. Ren, G. Balakrishnan, S. Picozzi, and P. D. C. King. Covalency, correlations, and interlayer interactions governing the magnetic and electronic structure of Mn3Si2Te6. Physical Review B 108, 054419 (2023).
64. A. S. Cameron, Y. V. Tymoshenko, P. Y. Portnichenko, A. S. Sukhanov, M. Ciomaga Hatnean, D. McK. Paul, G. Balakrishnan, R. Cubitt, and D. S. Inosov. Adherence of the rotating vortex lattice in the noncentrosymmetric superconductor Ru7B3 to the London model. Journal of Physics: Condensed Matter 35, 425602 (2023).
63. M. Islam, M. Ciomaga Hatnean, G. Balakrishnan, and O. A. Petrenko. Frustrated Magnet Mn3Al2Ge3O12 Garnet: Crystal Growth by the Optical Floating Zone Method. Crystals 13, 397 (2023).
62. J. Stankiewicz, P. Schlottmann, J. Blasco, M. Ciomaga Hatnean, and G. Balakrishnan. Dielectric and transient electrical response of SmB single crystals. Materials Research Bulletin 159, 112105 (2023).
2022
61. N. Qureshi, H. E. Fischer, S. X. M. Riberolles, T. C. Hansen, M. Ciomaga Hatnean, and O. A. Petrenko. Magnetic short-range order in polycrystalline SrGd2O4 and SrNd2O4 studied by reverse Monte Carlo simulations and magnetic pair-distribution function analysis. Physical Review B 106, 224426 (2022).
60. 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. Singlet-triplet mixing in the order parameter of the noncentrosymmetric superconductor Ru7B3. Physical Review B 105, 094519 (2022).
59. H. Liu, A. J. Hickey, M. Hartstein, A. J. Davies, A. G. Eaton, T. Elvin, E. Polyakov, T. H. Vu, V. Wichitwechkarn, T. Förster, J. Wosnitza, T. P. Murphy, N. Shitsevalova, M. D. Johannes, M. Ciomaga Hatnean, G. Balakrishnan, G. G. Lonzarich, and S. E. Sebastian. f-electron hybridised Fermi surface in magnetic field-induced metallic YbB12. npj Quantum Materials 7, 12 (2022).
58. N. Qureshi, B. Z. Malkin, S. X. M. Riberolles, C. Ritter, B. Ouladdiaf, G. Balakrishnan, M. Ciomaga Hatnean, and O. A. Petrenko. Magnetic structures of geometrically frustrated SrGd2O4 derived from powder and single-crystal neutron diffraction. Physical Review B 105, 014425 (2022).
2021
57. C. Macchiutti, J. R. Jesus, F. B. Carneiro, L. Bufaiçal, M. Ciomaga Hatnean, G. Balakrishnan, and E. M. Bittar. Absence of zero-field-cooled exchange bias effect in single crystalline La2-xAxCoMnO6 (A = Ca, Sr) compounds. Physical Review Materials 5, 094402 (2021).
56. L. Ørduk Sandberg, R. Edberg, I.-M. Berg Bakke, K. S. Pedersen, M. Ciomaga Hatnean, G. Balakrishnan, L. Mangin-Thro, A. Wildes, B. Fåk, G. Ehlers, G. Sala, P. Henelius, K. Lefmann, and P. P. Deen. Emergent magnetic behavior in the frustrated Yb3Ga5O12 garnet. Physical Review B 104, 064425 (2021).
55. M. Léger, E. Lhotel, E. Ressouche, K. Beauvois, F. Damay, C. Paulsen, A. Al-Mawla, E. Suard, M. Ciomaga Hatnean, G. Balakrishnan, and S. Petit. Field-temperature phase diagram of the enigmatic Nd2(Zr1-xTix)2O7 pyrochlore magnets. Physical Review B 103, 214449 (2021).
54. M. Léger, E. Lhotel, M. Ciomaga Hatnean, J. Ollivier, A. R. Wildes, S. Raymond, E. Ressouche, G. Balakrishnan, and S. Petit. Spin Dynamics and Unconventional Coulomb Phase in Nd2Zr2O7. Physical Review Letters 126, 247201 (2021).
53. D. D. Khalyavin, P. Manuel, M. Ciomaga Hatnean, and O. A. Petrenko. Fragile ground state and rigid field-induced structures in the zigzag ladder compound BaDy2O4. Physical Review B 103, 134434 (2021).
52. N. Qureshi, A. Wildes, C. Ritter, B. Fåk, S. X. M. Riberolles, M. Ciomaga Hatnean, and O. A. Petrenko. Magnetic structure and low-temperature properties of geometrically frustrated SrNd2O4. Physical Review B 103, 134433 (2021).
51. 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 Ç. Kurdak. Bulk transport paths through defects in floating zone and Al flux grown SmB6. Physical Review Materials 5, 055001 (2021).
50. A. Mostaed, B. Walkley, M. Ciomaga Hatnean, G. Balakrishnan, M. R. Lees, R. Beanland, D. C. Sinclair, and I. M. Reaney. Characterising oxygen atoms in perovskite and pyrochlore oxides using ADF-STEM at a resolution of a few tens of picometers. Acta Materialia 208, 116717 (2021).
49. T. J. Hicken, M. N. Wilson, K. J. A. Franke, B. M. Huddart, Z. Hawkhead, M. Gomilšek, S. J. Clark, F. L. Pratt, A. Štefančič, A. E. Hall, M. Ciomaga Hatnean, G. Balakrishnan, and T. Lancaster. Megahertz dynamics in skyrmion systems probed with muon-spin relaxation. Physical Review B 103, 024428 (2021).
2020
48. P. Buchsteiner, L. Harmsen, M. Ciomaga Hatnean, G. Balakrishnan, and M. Wenderoth. Surface analysis of the PrB6 (001) cleavage plane by scanning tunneling microscopy and spectroscopy. Physical Review B 102, 205403 (2020).
47. M. Hartstein, H. Liu, Y.-T. Hsu, B. S. Tan, M. Ciomaga Hatnean, G. Balakrishnan, and S. E. Sebastian. Intrinsic bulk quantum oscillations in a bulk unconventional insulator SmB6. iScience 23, 101632 (2020).
46. M. Ciomaga Hatnean, T. Ahmad, M. Walker, M. R, Lees, and G. Balakrishnan. Crystal growth by the floating zone method of Ce-substituted crystals of the topological Kondo insulator SmB6. Crystals 10, 827 (2020).
45. M. Ciomaga Hatnean, O. A. Petrenko, M. R, Lees, T. E. Orton, and G. Balakrishnan. Optical floating zone crystal growth of rare-earth disilicates, R2Si2O7 (R = Er, Ho, and Tm). Crystal Growth & Design 20, 6636-6648 (2020).
44. D. Lançon, 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. Rüegg, and T. Fennell. Evolution of field-induced metastable phases in the Shastry-Sutherland lattice magnet TmB4. Physical Review B 102, 060407(R) (2020).
43. M. D. Watson, I. Marković, 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. Direct observation of the energy gain underpinning ferromagnetic superexchange in the electronic structure of CrGeTe3. Physical Review B 101, 205125 (2020).
42. 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 Ç. Kurdak. Comprehensive surface magnetotransport studies of SmB6. Physical Review B 101, 155109 (2020).
41. 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. Proximity-induced ferromagnetism and chemical reactivity in few-layer VSe2 heterostructures. Physical Review B 101, 035404 (2020).
2019
40. 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. Investigating the magnetic ground state of the skyrmion host material Cu2OSeO3 using long-wavelength neutron diffraction. AIP Advances 9, 125228 (2019).
39. P. Buchsteiner, F. Sohn, J. G. Horstmann, J. Voigt, M. Ciomaga Hatnean, G. Balakrishnan,4 C. Ropers, P. E. Blöchl, and M. Wenderoth. Surface resonance of the (2 x 1) reconstructed lanthanum hexaboride (001)-cleavage plane: A combined STM and DFT study. Physical Review B 100, 205407 (2019).
38. 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. Modular thermal Hall effect measurement setup for fast-turnaround screening of materials over wide temperature range using capacitive thermometry. Review of Scientific Instruments 90, 103904 (2019).
37. C. Toulouse, D. Amoroso, C. Xin, P. Veber, M. Ciomaga Hatnean, G. Balakrishnan, M. Maglione, P. Ghosez, J. Kreisel, and M. Guennou. Lattice dynamics and Raman spectrum of BaZrO3 single crystals. Physical Review B 100, 134102 (2019).
36. 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. Rotation of the magnetic vortex lattice in Ru7B3 driven by the effects of broken time-reversal and inversion symmetry. Physical Review B 100, 024518 (2019).
35. V. Granata, L. Rocco, A. Ubaldini, M. R. Lees, R. Fittipaldi, M. Ciomaga Hatnean, S. Pace, G. Balakrishnan, and A. Vecchione. Effect of different atmospheres on the synthesis of Ba2CuGe2O7 single crystals. The European Physical Journal Special Topics 228, 703-712 (2019).
34. D. Brunt, M. Ciomaga Hatnean, O. A. Petrenko, M. R. Lees, and G. Balakrishnan. Single Crystal Growth of Metallic Rare Earth Tetraborides by the Floating Zone Technique. Crystals 9, 211 (2019).
33. 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. Investigation on BaZrO3 single crystals grown at half its melting point temperature from flux and at 2700 C by optical floating zone techniques. CrystEngComm 21, 502-512 (2019).
2018
32. E. Lhotel, S. Petit, M. Ciomaga Hatnean, J. Ollivier, H. Mutka, E. Ressouche, M. R. Lees, and G. Balakrishnan. Evidence for dynamic kagome ice. Nature Communications 9, 3786 (2018).
31. 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. Štefančič, M. Ciomaga Hatnean, G. Balakrishnan, and T. Lancaster. Magnetic phases of skyrmion-hosting GaV4S8−ySey (y=0,2,4,8) probed with muon spectroscopy. Physical Review B 98, 054428 (2018).
30. R. Sibille, N. Gauthier, H. Yan, M. Ciomaga Hatnean, J. Ollivier, B. Winn, U. Filges, G. Balakrishnan, M. Kenzelmann, N. Shannon, and T. Fennell. Experimental signatures of emergent quantum electrodynamics in Pr2Hf2O7. Nature Physics 14, 711-715 (2018).
29. J. C. Loudon, A. O. Leonov, A. N. Bogdanov, M. Ciomaga Hatnean, and G. Balakrishnan. Direct observation of attractive skyrmions and skyrmion clusters in the cubic helimagnet Cu2OSeO3. Physical Review B 97, 134403 (2018).
28. 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. Rüegg, J. T. Haraldsen, and O. Zaharko. Manifolds of magnetic ordered states and excitations in the almost Heisenberg pyrochlore antiferromagnet MgCr2O4. Physical Review B 97, 134430 (2018).
27. 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. New route to a Fermi surface in the absence of a Fermi liquid: a Kondo insulator near the insulator-metal transition. Nature Physics 14, 166 (2018).
26. H. Liu, M. Hartstein, G. J. Wallace, A. J. Davies, M. Ciomaga Hatnean, M. D. Johannes, N. Shitsevalova, G. Balakrishnan and S. E. Sebastian. Fermi surfaces in Kondo insulators. Journal of Physics: Condensed Matter 30, 16LT01 (2018).
2017
25. N. Martin, P. Bonville, E. Lhotel, J. Robert, S. Guitteny, A. Wildes, C. Decorse, M. Ciomaga Hatnean, G. Balakrishnan, I. Mirebeau, and S. Petit. Disorder and Quantum spin ice. Physical Review X 7, 041028 (2017).
* M. Ciomaga Hatnean, M. R. Lees, O. A. Petrenko and G. Balakrishnan. Magnetic frustration in rare earth zirconate pyrochlores. Acta Crystallographica A73, C827 (2017).
* G. Balakrishnan, M. Ciomaga Hatnean, A. Stefancic and M. R. Lees. Structural and magnetic investigations of new skyrmion phases. Acta Crystallographica A73, C826 (2017).
24. S. Barua, M. Ciomaga Hatnean, M. R. Lees, and G. Balakrishnan. Signatures of the Kondo effect in VSe2. Scientific Reports 7, 10964 (2017).
23. 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. Coulomb spin liquid in anion-disordered pyrochlore Tb2Hf2O7. Nature Communications 8, 894 (2017).
22. S. Biswas, M. Ciomaga Hatnean, G. Balakrishnan, and A. Bid. Probing the interplay between surface and bulk states in the topological Kondo insulator SmB6 through conductance fluctuation spectroscopy. Physical Review B 95, 205403 (2017).
21. 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. Suppression of magnetic excitations near the surface of the topological Kondo insulator SmB6. Physical Review B Rapid Communication 95, 020410 (R) (2017).
2016
20. M. Ciomaga Hatnean, R. Sibille, M. R. Lees, M. Kenzelmann, V. Ban, V. Pomjakushin, and G. Balakrishnan. Single crystal growth, structure and magnetic properties of Pr2Hf2O7 pyrochlore. Journal of Physics: Condensed Matter 29, 075902 (2016).
19. P. Bonville, S. Guitteny, A. Gukasov, I. Mirebeau, S. Petit, C. Decorse, M. Ciomaga Hatnean, and G. Balakrishnan. Magnetic properties and crystal field in Pr2Zr2O7. Physical Review B 94, 134428 (2016).
18. 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. Antiferroquadrupolar correlations in the quantum spin ice candidate Pr2Zr2O7. Physical Review B 94, 165153 (2016).
17. A. Oleaga, A. Salazar, M. Ciomaga Hatnean, and G. Balakrishnan. Critical behavior study of Pr1−xSrxMnO3 and Nd1−xSrxMnO3 with x = 1/2. Journal of Alloys and Compounds 682, 825-831 (2016).
* R. Sibille, T. Fennell, M. Ciomaga Hatnean, E. Lhotel, D. Keen, G. Balakrishnan, and M. Kenzelmann. Structural disorder in a magnetic pyrochlore oxide. Acta Crystallographica A72, s306 (2016).
16. R. Sibille, E. Lhotel, M. Ciomaga Hatnean, G. Balakrishnan, B. Fk, N. Gauthier, T. Fennell, and M. Kenzelmann. Candidate quantum spin ice in the pyrochlore Pr2Hf2O7. Physical Review B 94, 024436 (2016).
15. M. Ciomaga Hatnean, C. Decorse, M. R. Lees, O. A. Petrenko, and G. Balakrishnan. Zirconate Pyrochlore Frustrated Magnets: Crystal Growth by the Floating Zone Technique. Crystals 6, 79 (2016).
14. S. Petit, E. Lhotel, B. Canals, M. Ciomaga Hatnean, J. Ollivier, H. Mutka, E. Ressouche, A. R. Wildes, M. R. Lees, and G. Balakrishnan. Observation of magnetic fragmentation in spin ice. Nature Physics 12, 746-750 (2016).
2015
13. E. Lhotel, S. Petit, S. Guitteny, O. Florea, M. Ciomaga Hatnean, C. Colin, E. Ressouche, M. R. Lees, and G. Balakrishnan. Fluctuations and all-in--all-out ordering in dipole-octopole Nd2Zr2O7. Physical Review Letters 115, 197202 (2015).
12. S. Biswas, R. Nagarajan, S. Sarkar, K. Rafsanjani Amin, M. Ciomaga Hatnean, S. Tewari, G. Balakrishnan, and A. Bid. Robust local and nonlocal transport in the topological Kondo insulator SmB6 in the presence of a high magnetic field. Physical Review B 92, 085103 (2015).
11. 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. Unconventional Fermi surface in an insulating state. Science 349, 287-290 (2015).
10. A. Oleaga, A. Salazar, M. Ciomaga Hatnean, and G. Balakrishnan. Three-dimensional Ising critical behavior in R0.6Sr0.4MnO3 (R = Pr,Nd) manganites. Physical Review B 92, 024409 (2015).
9. 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. Transverse field muon-spin rotation signature of the skyrmion-lattice phase in Cu2OSeO3. Physical Review B 91, 224408 (2015).
8. M. Ciomaga Hatnean, M. R. Lees, and G. Balakrishnan. Growth of single-crystals of rare-earth zirconate pyrochlores, Ln2Zr2O7 (with Ln=La, Nd, Sm, and Gd) by the floating zone technique. Journal of Crystal Growth 418, 1 (2015).
7. M. Ciomaga Hatnean, M. R. Lees, O. A. Petrenko, D. S. Keeble, G. Balakrishnan, M. J. Gutmann, V. V. Klekovkina, and B. Z. Malkin. Structural and magnetic investigations of single-crystalline neodymium zirconate pyrochlore Nd2Zr2O7. Physical Review B 91, 174416 (2015).
2014
6. R. Fittipaldi, L. Rocco, M. Ciomaga Hatnean, V. Granata, M. R. Lees, G. Balakrishnan, and A. Vecchione. Crystal growth and characterization of the non-centrosymmetric antiferromagnet Ba2CuGe2O7. Journal of Crystal Growth 404, 223-230 (2014).
5. M. Ciomaga Hatnean, C. Decorse, M. R. Lees, O. A. Petrenko, D. S. Keeble, and G. Balakrishnan. Structural and magnetic properties of single crystals of the geometrically frustrated zirconium pyrochlore, Pr2Zr2O7. Materials Research Express 1, 026109 (2014).
4. 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. Low-temperature magnetic fluctuations in the Kondo insulator SmB6. Physical Review B Rapid Communication 89, 161107 (R) (2014).
2013
3. M. Ciomaga Hatnean, M. R. Lees, D. McK. Paul, and G. Balakrishnan. Large high quality single crystals of the new Topological Kondo Insulator, SmB6. Scientific Reports 3, 3071 (2013).
2. M. Ciomaga Hatnean, L. Pinsard-Gaudart, M. T. Fernandez-Diaz, S. Petit, A. Dixit, G. Lawes, and R. Suryanarayanan. Structural and magnetic properties of the M2Ga2Fe2O9 (M = In, Sc) oxides. Journal of Solid State Chemistry 200, 110-116 (2013).
2012
1. M. Hatnean, J. Robert, M.T. Fernandez Diaz, E. Ressouche, A. Cousson, L. Pinsard-Gaudart, and S. Petit. Neutron scattering study of the magnetoelectric compound GaFeO3. The European Physical Journal Special Topics 213, 69-76 (2012).
* Abstracts published in Conference Proceedings or not peer-reviewed.