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Geetha Balakrishnan

Geetha Balakrishnan is a Professor in the Physics Department at the University of Warwick.

She has worked at Warwick since 1991. She has previously worked at the Tata Institute of Fundamental Research in Bombay, India (1989-1991) and also as a Research Fellow in the Physics Department at Warwick (1986-1988).

Research Interests

The growth of single crystals of superconductors, magnetic, and related materials by a variety of techniques, including a large programme of work using optical furnaces for the floating zone technique.

Also low temperature laboratory measurements and neutron scattering studies.

For more details on the research activities of Prof. Geetha Balakrishnan and the other members of the Superconductivity and Magnetism Group please visit our Research Pages.

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Current funded research projects:

EP/T005963/1 "Single Crystal Growth at Warwick" Sep 2019-Sep 2022, £634,595 (PI)

EP/N032128/1 “Skyrmionics: From Magnetic Excitations to Functioning Low-Energy Devices” Programme Grant led by Prof. Peter Hatton, Durham, July 2016-July 2022, £5,101,385 (Warwick PI)
EP/M028941/1 “Investigations of the physics underlying the principles of design of rare earth transition metal permanent magnets” Jan 2016-Jun 2020, £931,725 (Co-I)

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Recently concluded research grants:
EP/M028771/1 “Single Crystal Growth at Warwick” July 2015- July 2018, EPSRC, UK, £514,769 (PI)

EP/L014963/1 “Topological Insulators: A study of bulk crystalline and nanomaterials
March 2014-Aug 2017, EPSRC, UK, £616, 679 (PI)

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Selected recent publications:

(For a full list of publications please see link at the bottom of the list)

1. Direct observation of the energy gain underpinning ferromagnetic superexchange in the electronic structure of CrGeTe3. MD Watson, I Markovic, F Mazzola, A Rajan, EA Morales, DM Burn, T Hesjedal, G van der Laan, S Mukherjee, TK Kim, C Bigi, I Vobornik, M Ciomaga Hatnean, G Balakrishnan, PDC King. Phys. Rev. B 101 205125 (2020)

 2. Comprehensive surface magnetotransport study of SmB6. YS Eo, S Wolgast, A Rakoski, D Mihalilov, BY Kang, MS Song, BK Cho, M Ciomaga Hatnean, G Balakrishnan, Z Fisk, SR Saha, X Wang, J Paglione, C Kurdak. Phys. Rev. B 101 155109 (2020)

 3. Real-space imaging of confined magnetic skyrmion tubes. MT Birch, D Cortes-Ortuno, LA Turnbull, MN Wilson, F Gross, N Trager, A Laurenson, N Bukin, SH Moody, M Weigand, G Schutz, H Popescu, R Fan, P Steadman, JAT Verezhak, G Balakrishnan, JC Loudon, AC Twitchett-Harrison, O Hovorka, H Fangohr, FY Grin, J Grafe, PD Hatton. Nature Commun. 11 1726 (2020).

4. Tunability of the spin reorientation transitions with pressure in NdCo5. S Kumar, CE Patrick, RS Edwards, G Balakrishnan, MR Lees, JB Staunton. Appl. Phys. Lett. 116 102408 (2020).

5. Investigating the magnetic ground state of the skyrmion host material Cu2OSeO3 using long-wavelength neutron diffraction. KJA Franke, PR Dean, M Ciomaga Hatnean, MT Birch, DD Khalyavin, P Manuel, T Lancaster, G Balakrishnan, PD Hatton. AIP Advances 9 DOI: 10.1063/1.5129400 (2019).

6. Superconductivity and the upper critical field in the chiral noncentrosymmetric NBRh2B2. DA Mayoh, MJ Pearce, K Gotze, AD Hillier, G Balakrishnan, MR Lees. J Phys-Cond Matter 31 465601 (2019).

7. Field-induced transitions in highly frustrated SrHo2O4. O Young, G Balakrishnan, P Manuel, D Khalyavin, AR Wildes, OA Petrenko. Crystals 9 488 (2019).

8. Time-Reversal Symmetry Breaking in Re-Based Superconductors T. Shang, M. Smidman, S. K. Ghosh, C. Baines, L. J. Chang, D. J. Gawryluk, J.A.T. Barker, R.P. Singh, D. M. Paul, G. Balakrishnan, E. Pmjakushina, M. Shi, M. Medarde, A. D. Hillier, H. Q. Yuan, J. Quintanilla, J. Mesot, T. Shiroka Phys. Rev. Letters. 121 257002 (2018)

9. Origin of skyrmion lattice phase splitting in Zn-substituted Cu2OSeO3 A.Stefancic, S. H. Moody, T. J. Hicken, M. T. Birch, G. Balakrishnan, S. A. Barnett, M. Crisanti, J.S.O. Evans, S.J.R. Holt, K.J.A. Franke, P.D. Hatton, B.M. Huddart, M.R. Lees, F.L. Pratt, C.C. Tang, M.N. Wilson, F. Xiao, T. Lancaster, Phys. Rev. Materials 2 111402 (2018)

10. Evidence for dynamic kagome ice E. LHotel, S. Petit, M. Ciomaga Hatnean, J. Oliver, H. Mutka, E. Ressouche, M.R. Lees, G. Balakrishnan Nature Communications 9 3786 (2018)

11. Magnetisation process in the rare earth tetraborides, NdB4 and HoB4 D. Brunt, G. Balakrishnan, D. A. Mayoh, M. R. Lees, D. Gorbunov, N. Qureshi, and O. A. Petrenko Scientific Reports 8 232 (2018)

12. Magnetic phases of skyrmion-hosting GaV4S8-ySey (y=0, 2, 4, 8) probed with muon spectroscopy 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. Stefancic, M.C. Hatnean, G. Balakrishnanand T. Lancaster. Phys. Rev. B 98 054428 (2018)

13. Pauling Entropy, Metastability, and Equilibrium in Dy2Ti2O7 Spin Ice S.R. Giblin, M .Twengstrom, L. Bovo, M. Ruminy, M. Bartkowiak, P. Manuel, J.C. Andresen, D. Prabhakaran, G. Balakrishnan, E. Pomjakushina, C. Paulsen, E. Lhotel, L. Keller, M. Frontzek, S.C. Capelli, O. Zaharko, P.A. McClarty, S.T. Bramwell, P. Henelius and T. Fennell. Phys. Rev. Letters 121067202 (2018)

14. Electronic Structure and Enhanced Charge-Density Wave Order of Monolayer VSe2 J.G. Feng, D. Biswas, A. Rajan, M.D. Watson, F. Mazzola, O.J. Clark, K. Underwood, I. Markovic, M. McLaren, A. Hunter, D.M. Burn, L.B. Duffy, S. Barua, G. Balakrishnan,F. Bertran, O.Le Fevre, T.K. Kim, G. van der Laan, T. Hesjedal, P Wahl and P.D.C. King. Nano Letters 184493 (2018)

15. Experimental signatures of emergent quantum electrodynamics in Pr2Hf2O7 R. Sibille, N. Gauthier, H. Yan, M. Ciomaga Hatnean, J. Ollivier, B. Winn, U. Filges, G. Balakrishnan, M. Kenzelmann, N. Shannon, and T. Fennell. Nature Physics 14 711 (2018)

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Full list of publications: Please click on "Researcher ID" to view the list

ResearcherID

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Write to

Department of Physics
University of Warwick
Coventry CV4 7AL
United Kingdom

Contact Details

Office
P236
Telephone
+44 (0)2476573879
Fax
+44 (0)2476150897
E-Mail
G.Balakrishnan(at)warwick.ac.uk