2023

Stankiewicz, Jolanta, Schlottmann, Pedro, Blasco, Javier, Hatnean, Monica Ciomaga and Balakrishnan, Geetha (2023) Dielectric and transient electrical response of SmB6 single crystals. Materials Research Bulletin, 159 . p. 112105. doi:10.1016/j.materresbull.2022.112105

2022

Liu, H., Hickey, A. J., Hartstein, M., Davies, A. J., Eaton, A. G., Elvin, T., Polyakov, E., Vu, T. H., Wichitwechkarn, V., Förster, T., Wosnitza, J., Murphy, T. P., Shitsevalova, N., Johannes, M. D., Hatnean, Monica Ciomaga, Balakrishnan, Geetha, Lonzarich, G. G. and Sebastian, Suchitra E. (2022) f-electron hybridised Fermi surface in magnetic field-induced metallic YbB12. npj Quantum Materials, 7 (1). 12. doi:10.1038/s41535-021-00413-7

Qureshi, N., Malkin, B. Z., Riberolles, S. X. M., Ritter, C., Ouladdiaf, B., Balakrishnan, Geetha, Hatnean, Monica Ciomaga and Petrenko, Oleg (2022) Magnetic structures of geometrically frustrated SrGd2O4 derived from powder and single-crystal neutron diffraction. Physical Review B, 105 (1). 014425. doi:10.1103/PhysRevB.105.014425

2021

Sandberg, Lise Ørduk, Edberg, Richard, Bakke, Ingrid-Marie Berg, Pedersen, Kasper S., Hatnean, Monica Ciomaga, Balakrishnan, Geetha, Mangin-Thro, Lucile, Wildes, Andrew, Fåk, B., Ehlers, Georg, Sala, Gabriele, Henelius, Patrik, Lefmann, Kim and Deen, Pascale P. (2021) Emergent magnetic behavior in the frustrated Yb3Ga5O12 garnet. Physical Review B: Condensed matter and materials physics, 104 (6). 064425. doi:10.1103/PhysRevB.104.064425

Léger, M., Lhotel, E., Ressouche, E., Beauvois, K., Damay, F., Paulsen, C., Al-Mawla, A., Suard, E., Ciomaga Hatnean, Monica, Balakrishnan, Geetha and Petit, S. (2021) Field-temperature phase diagram of the enigmatic Nd2(Zr1−xTix)2O7 pyrochlore magnets. Physical Review B, 103 (21). 214449. doi:10.1103/PhysRevB.103.214449

Léger, M., Lhotel, E., Ciomaga Hatnean, Monica, Ollivier, J., Wildes, A. R., Raymond, S., Ressouche, E., Balakrishnan, Geetha and Petit, S. (2021) Spin dynamics and unconventional Coulomb phase in Nd2Zr2O7. Physical Review Letters, 126 (24). 247201. doi:10.1103/PhysRevLett.126.247201

(2021) Bulk transport paths through defects in floating zone and Al flux grown SmB6. Physical Review Materials, 5 (5). 055001. doi:10.1103/PhysRevMaterials.5.055001

Khalyavin, D. D., Manuel, P., Hatnean, Monica Ciomaga and Petrenko, Oleg (2021) Fragile ground state and rigid field-induced structures in the zigzag ladder compound BaDy2O4. Physical Review B, 103 (13). 134434. doi:10.1103/PhysRevB.103.134434

Qureshi, N., Wildes, A. R., Ritter, C., Fåk, B., Riberolles, S. X. M., Ciomaga Hatnean, Monica and Petrenko, Oleg (2021) Magnetic structure and low-temperature properties of geometrically frustrated SrNd2O4. Physical Review B, 103 (13). 134433. doi:10.1103/PhysRevB.103.134433

Hicken, T. J., Wilson, M. N., Franke, K. J. A., Huddart, B. M., Hawkhead, Z., Gomilšek, M., Clark, S. J., Pratt, F. L., Štefančič, A., Hall, A. E., Ciomaga Hatnean, Monica, Balakrishnan, Geetha and Lancaster, T. (2021) Megahertz dynamics in skyrmion systems probed with muon-spin relaxation. Physical Review B, 103 (2). 024428. doi:10.1103/PhysRevB.103.024428

2020

Hartstein, Máté, Liu, Hsu, Hsu, Yu-Te, Tan, Beng S., Ciomaga Hatnean, Monica, Balakrishnan, Geetha and Sebastian, Suchitra E. (2020) Intrinsic bulk quantum oscillations in a bulk unconventional insulator SmB6. iScience, 23 (11). 101632. doi:10.1016/j.isci.2020.101632

Buchsteiner, P., Harmsen, L., Ciomaga Hatnean, Monica, Balakrishnan, Geetha and Wenderoth, M. (2020) Surface analysis of the PrB6 (001) cleavage plane by scanning tunneling microscopy and spectroscopy. Physical Review B, 102 (20). 205403. doi:10.1103/PhysRevB.102.205403

Ciomaga Hatnean, Monica, Ahmad, Talha, Walker, Marc, Lees, Martin R. and Balakrishnan, Geetha (2020) Crystal growth by the floating zone method of Ce-substituted crystals of the topological Kondo insulator SmB6. Crystals, 10 (9). 827. doi:10.3390/cryst10090827

Ciomaga Hatnean, Monica, Petrenko, Oleg, Lees, Martin R., Orton, Tom E. and Balakrishnan, Geetha (2020) Optical floating zone crystal growth of rare-earth disilicates, R2Si2O7 (R = Er, Ho, and Tm). Crystal Growth & Design, 20 (10). pp. 6636-6648. doi:10.1021/acs.cgd.0c00792

Lançon, D., Scagnoli, V., Staub, U., Petrenko, Oleg, Ciomaga Hatnean, Monica, Canevet, E., Sibille, R., Francoual, S., Mardegan, J. R. L., Beauvois, K., Balakrishnan, Geetha, Heyderman, L. J., Rüegg, Ch. and Fennell, T. (2020) Evolution of field-induced metastable phases in the Shastry-Sutherland lattice magnet TmB4. Physical Review B, 102 (6). 060407. doi:10.1103/PhysRevB.102.060407

Watson, Matthew D., Marković, Igor, Mazzola, Federico, Rajan, Akhil, Morales, Edgar A., Burn, David M., Hesjedal, Thorsten, van der Laan, Gerrit, Mukherjee, Saumya, Kim, Timur K., Bigi, Chiara, Vobornik, Ivana, Ciomaga Hatnean, Monica, Balakrishnan, Geetha and King, Philip D. C. (2020) Direct observation of the energy gain underpinning ferromagnetic superexchange in the electronic structure of CrGeTe3. Physical Review B, 101 (20). 205125. doi:10.1103/PhysRevB.101.205125

Eo, Y. S., Wolgast, S., Rakoski, A., Mihaliov, D., Kang, B. Y., Song, M. S., Chow, B. K. B., Ciomaga Hatnean, Monica, Balakrishnan, Geetha, Fisk, Z., Saha, S. R., Wang, X., Paglione, J. and Kurdak, Ç. (2020) Comprehensive surface magnetotransport study of SmB6. Physical Review B (Condensed Matter and Materials Physics), 101 (15). 155109. doi:10.1103/PhysRevB.101.155109

Vinai, G., Bigi, C., Rajan, A., Watson, M. D., Lee, T-L., Mazzola, F., Modesti, S., Barua, Sourabh, Ciomaga Hatnean, Monica, Balakrishnan, Geetha, King, P. D. C., Torelli, P., Rossi, G. and Panaccione, G. (2020) Proximity-induced ferromagnetism and chemical reactivity in few-layer VSe2 heterostructures. Physical Review B, 101 (3). 035404. doi:10.1103/PhysRevB.101.035404

2019

Buchsteiner, P., Sohn, F., Horstmann, J. G., Voigt, J., Ciomaga Hatnean, Monica, Balakrishnan, Geetha, Ropers, C., Blöchl, P. E. and Wenderoth, M. (2019) Surface resonance of the (2×1) reconstructed lanthanum hexaboride (001)-cleavage plane : a combined STM and DFT study. Physical Review B, 100 (20). 205407. doi:10.1103/PhysRevB.100.205407

Kim, Ha-Leem, Coak, Matthew John, Baglo, J. C., Murphy, Keiron, Hill, R. W., Sutherland, Michael, Hatnean, Monica Ciomaga, Balakrishnan, Geetha and Park, Je-Geun (2019) Modular thermal Hall effect measurement setup for fast-turnaround screening of materials over wide temperature range using capacitive thermometry. Review of Scientific Instruments, 90 (10). 103904. doi:10.1063/1.5108512

Toulouse, Constance, Amoroso, Danila, Xin, Cong, Veber, Philippe, Hatnean, Monica Ciomaga, Balakrishnan, Geetha, Maglione, Mario, Ghosez, Philippe, Kreisel, Jens and Guennou, Mael (2019) Lattice dynamics and Raman spectrum of BaZrO3 single crystals. Physical Review B, 100 (13). 134102 . doi:10.1103/PhysRevB.100.134102

Cameron, A. S., Yerin, Y. S., Tymoshenko, Y. V., Portnichenko, P. Y., Sukhanov, A. S., Ciomaga Hatnean, Monica, Paul, Don McK., Balakrishnan, Geetha, Cubitt, R., Heinemann, A. and Inosov, D. S. (2019) Rotation of the magnetic vortex lattice in Ru7B3 driven by the effects of broken time-reversal and inversion symmetry. Physical Review B, 100 (2). 024518. doi:10.1103/PhysRevB.100.024518

Brunt, Daniel, Ciomaga Hatnean, Monica, Petrenko, Oleg A., Lees, Martin R. and Balakrishnan, Geetha (2019) Single-crystal growth of metallic rare-earth tetraborides by the floating-zone technique. Crystals, 9 (4). p. 211. doi:10.3390/cryst9040211

2018

Xin, Cong, Veber, Philippe, Guennou, Mael, Toulouse, Constance, Valle, Nathalie, Ciomaga Hatnean, Monica, Balakrishnan, Geetha, Haumont, Raphael, Saint Martin, Romuald, Velazquez, Matias, Maillard, Alain, Rytz, Daniel, Josse, Michael, Maglione, Mario and Kreisel, Jens (2018) Single crystal growth of BaZrO3 from the melt at 2700 °C using optical floating zone technique and growth prospects from BaB2O4 flux at 1350 °C. CrystEngComm, 21 (3). pp. 502-512. doi:10.1039/C8CE01665H

Lhotel, E., Petit, S., Ciomaga Hatnean, Monica, Ollivier, J., Mutka, H., Ressouche, E., Lees, Martin R. and Balakrishnan, Geetha (2018) Evidence for dynamic kagome ice. Nature Communications, 9 (1). 3786 . doi:10.1038/s41467-018-06212-2

Lhotel, E., Petit, S., Ciomaga Hatnean, Monica, Ollivier, J., Mutka, H., Ressouche, E., Lees, Martin R. and Balakrishnan, G. (2018) Evidence for dynamic kagome ice. Nature Communications, 9 (1). 3786. doi:10.1038/s41467-018-06212-2

Franke, Kévin J. A., Huddart, Benjamin M., Hicken, Thomas J., Xiao, Fan, Blundell, Stephen J., Pratt, Francis L., Crisanti, Marta, Barker, Joel A. T., Clark, Stewart J., Štefančič, Aleš, Ciomaga Hatnean, Monica, Balakrishnan, Geetha and Lancaster, Tom (2018) Magnetic phases of skyrmion-hosting GaV4S8−ySey (y=0,2,4,8) probed with muon spectroscopy. Physical Review B, 98 (5). 054428. doi:10.1103/PhysRevB.98.054428

Sibille, Romain, Gauthier, Nicolas, Yan, Han, Ciomaga Hatnean, Monica, Ollivier, Jacques, Winn, Barry, Filges, Uwe, Balakrishnan, Geetha, Kenzelmann, Michel, Shannon, Nic and Fennell, Tom (2018) Experimental signatures of emergent quantum electrodynamics in Pr2Hf2O7. Nature Physics, 14 . pp. 711-715. doi:10.1038/s41567-018-0116-x

(2018) Manifolds of magnetic ordered states and excitations in the almost Heisenberg pyrochlore antiferromagnet MgCr2O4. Physical Review B, 97 (13). 134430. doi:10.1103/PhysRevB.97.134430

Liu, Hsu, Hartstein, Máté, Wallace, Gregory J, Davies, Alexander J, Ciomaga Hatnean, Monica, Johannes, Michelle D, Shitsevalova, Natalya, Balakrishnan, Geetha and Sebastian, Suchitra E (2018) Fermi surfaces in Kondo insulators. Journal of Physics: Condensed Matter, 30 (16). 16LT01. doi:10.1088/1361-648X/aaa522

Loudon, J. C., Leonov, A. O., Bogdanov, A. N., Ciomaga Hatnean, Monica and Balakrishnan, Geetha (2018) Direct observation of attractive skyrmions and skyrmion clusters in the cubic helimagnet Cu2OSeO3. Physical Review B, 97 (13). p. 134403. 134403. doi:10.1103/PhysRevB.97.134403

(2018) Fermi surface in the absence of a Fermi liquid in the Kondo insulator SmB6. Nature Physics, 14 (2). pp. 166-172. doi:10.1038/NPHYS4295

2017

Martin, N., Bonville, P., Lhotel, E., Guitteny, S., Wildes, A., Decorse, C., Ciomaga Hatnean, Monica, Balakrishnan, Geetha, Mirebeau, I. and Petit, S. (2017) Disorder and quantum spin ice. Physical Review X, 7 (4). 041028. doi:10.1103/PhysRevX.7.041028

Sibille, Romain, Lhotel, Elsa, Ciomaga Hatnean, Monica, Nilsen, Gøran J., Ehlers, Georg, Cervellino, Antonio, Ressouche, Eric, Frontzek, Matthias, Zaharko, Oksana, Pomjakushin, Vladimir, Stuhr, Uwe, Walker, Helen C., Adroja, Devashibhai T., Luetkens, Hubertus, Baines, Chris, Amato, Alex, Balakrishnan, Geetha, Fennell, Tom and Kenzelmann, Michel (2017) Coulomb spin liquid in anion-disordered pyrochlore Tb2Hf2O7. Nature Communications, 8 (1). 892. doi:10.1038/s41467-017-00905-w

Barua, Sourabh, Ciomaga Hatnean, Monica, Lees, Martin R. and Balakrishnan, Geetha (2017) Signatures of the Kondo effect in VSe2. Scientific Reports, 7 . 10964. doi:10.1038/s41598-017-11247-4

Biswas, Sangram, Ciomaga Hatnean, Monica, Balakrishnan, Geetha and Bid, Aveek (2017) Probing the interplay between surface and bulk states in the topological Kondo insulator SmB6 through conductance fluctuation spectroscopy. Physical Review B (Condensed Matter and Materials Physics), 95 (20). 205403. doi:10.1103/PhysRevB.95.205403

Biswas, P. K. (Pabitra K.), Legner, M., Balakrishnan, Geetha, Ciomaga Hatnean, Monica, Lees, Martin R., Mck. Paul, Don, Pomjakushina, E., Prokscha, T., Suter, A., Neupert, T. and Salman, Z. (2017) Suppression of magnetic excitations near the surface of the topological Kondo insulator SmB6. Physical Review B (Condensed Matter and Materials Physics), 95 (2). 020410(R). doi:10.1103/PhysRevB.95.020410

2016

Ciomaga Hatnean, Monica, Sibille, Romain, Lees, Martin R., Kenzelmann, Michel, Ban, Voraksmy, Pomjakushin, Vladimir and Balakrishnan, Geetha (2016) Single crystal growth, structure and magnetic properties of Pr2Hf2O7 pyrochlore. Journal of Physics: Condensed Matter, 29 (7). 075902. doi:10.1088/1361-648X/29/7/075902

Bonville, P., Guitteny, S., Gukasov, A., Mirebeau, I., Petit, S., Decorse, C., Ciomaga Hatnean, Monica and Balakrishnan, Geetha (2016) Magnetic properties and crystal field in Pr2Zr2O7. Physical Review B (Condensed Matter and Materials Physics), 94 (13). 134428 . doi:10.1103/PhysRevB.94.134428

Petit, S., Lhotel, E., Guitteny, S., Florea, O., Robert, J., Bonville, P., Mirebeau, I., Ollivier, J., Mutka, H., Ressouche, E., Decorse, C., Ciomaga Hatnean, Monica and Balakrishnan, Geetha (2016) Antiferroquadrupolar correlations in the quantum spin ice candidate Pr2Zr2O7. Physical Review B, 94 (16). 165153 . doi:10.1103/PhysRevB.94.165153

Sibille, Romain, Lhotel, Elsa, Ciomaga Hatnean, Monica, Balakrishnan, Geetha, Fåk, Björn, Gauthier, Nicolas, Fennell, Tom and Kenzelmann, Michel (2016) Candidate quantum spin ice in the pyrochlore Pr2Hf2O7. Physical Review B, 94 (2). 024436 . doi:10.1103/PhysRevB.94.024436

Ciomaga Hatnean, Monica, Decorse, Claudia, Lees, Martin R., Petrenko, Oleg and Balakrishnan, Geetha (2016) Zirconate pyrochlore frustrated magnets : crystal growth by the floating zone technique. Crystals, 6 (7). 79. doi:10.3390/cryst6070079

Petit, Sylvain, Lhotel, Elsa, Canals, B., Ciomaga Hatnean, Monica, Ollivier, J. (Jacques)‏, Mutka, Hannu, Ressouche, E., Wildes, Andrew R., Lees, Martin R. and Balakrishnan, G. (2016) Observation of magnetic fragmentation in spin ice. Nature Physics, 12 (8). pp. 746-750. doi:10.1038/NPHYS3710

2015

Lhotel, Elsa, Petit, Sylvain, Guitteny, S., Florea, O., Ciomaga Hatnean, Monica, Colin, C., Ressouche, E., Lees, Martin R. and Balakrishnan, G. (2015) Fluctuations and all-in–all-out ordering in Dipole-Octupole Nd2Zr2O7. Physical Review Letters, 115 (19). 197202. doi:10.1103/PhysRevLett.115.197202

Biswas, Sangram, Nagarajan, Ramya, Sarkar, Suman, Amin, Kazi Rafsanjani, Ciomaga Hatnean, Monica, Tewari, S., Balakrishnan, Geetha and Bid, Aveek (2015) Robust local and nonlocal transport in the topological Kondo insulator SmB6in the presence of a high magnetic field. Physical Review B, 92 (8). 085103. doi:10.1103/PhysRevB.92.085103

Tan, B. S., Hsu, Y.- T., Zeng, B., Ciomaga Hatnean, Monica, Harrison, N., Zhu, Z., Hartstein, M., Kiourlappou, M., Srivastava, A., Johannes, M. D., Murphy, T. P., Park, J.- H., Balicas, L., Lonzarich, G. G., Balakrishnan, Geetha and Sebastian, S. E. (2015) Unconventional Fermi surface in an insulating state. Science, 349 (6245). pp. 287-290. doi:10.1126/science.aaa7974

Oleaga, A., Salazar, A., Ciomaga Hatnean, Monica and Balakrishnan, Geetha (2015) Three-dimensional Ising critical behavior in R0.6Sr0.4MnO3(R=Pr,Nd) manganites. Physical Review B, 92 (2). 024409. doi:10.1103/PhysRevB.92.024409

Lancaster, T., Williams, R. C., Thomas, I. O., Xiao, F., Pratt, F. L., Blundell, S. J., Loudon, J. C., Hesjedal, T., Clark, S. J., Hatton, P. D., Ciomaga Hatnean, Monica, Keeble, Dean Samuel and Balakrishnan, Geetha (2015) Transverse field muon-spin rotation signature of the skyrmion-lattice phase in Cu2OSeO3. Physical Review B, 91 (22). 224408 . doi:10.1103/PhysRevB.91.224408

Ciomaga Hatnean, Monica, Lees, Martin R., Petrenko, Oleg, Keeble, Dean Samuel, Balakrishnan, G., Gutmann, M. J., Klekovkina, V. V. and Malkin, B. Z. (2015) Structural and magnetic investigations of single-crystalline neodymium zirconate pyrochlore Nd2Zr2O7. Physical Review B (Condensed Matter and Materials Physics), 91 (17). 174416. doi:10.1103/PhysRevB.91.174416

2014

Fittipaldi, R., Rocco, L., Ciomaga Hatnean, Monica, Granata, V., Lees, Martin R., Balakrishnan, Geetha and Vecchione, A. (2014) Crystal growth and characterization of the non-centrosymmetric antiferromagnet Ba2CuGe2O7. Journal of Crystal Growth, Volume 404 . pp. 223-230. doi:10.1016/j.jcrysgro.2014.07.022

Biswas, P. K. (Pabitra K.), Salman, Zaher, Neupert, T., Morenzoni, E., Pomjakushina, E., von Rohr, F., Conder, K., Balakrishnan, Geetha, Ciomaga Hatnean, Monica, Lees, Martin R., Paul, Don McK., Schilling, A., Baines, C., Luetkens, H., Khasanov, R. and Amato, A. (2014) Low-temperature magnetic fluctuations in the Kondo insulator SmB6. Physical Review B (Condensed Matter and Materials Physics), Volume 89 (Number 16). doi:10.1103/PhysRevB.89.161107

2013

Ciomaga Hatnean, Monica, Lees, Martin R., Paul, Don McK. and Balakrishnan, Geetha (2013) Large, high quality single-crystals of the new Topological Kondo Insulator, SmB6. Scientific Reports, Volume 3 . Article: 3071. doi:10.1038/srep03071