Huibo Cao

Huibo Cao


Position: Instrument Scientist

Instrument: Four-Circle Diffractometer

Group: Diffraction

Division: Neutron Scattering Division

Facility: High Flux Isotope Reactor


2010-present     Staff scientist, Oak Ridge National Laboratory, USA

2009-2010         Postdoctoral Research Fellow, Oak Ridge Associated Universities, USA

2007-2009         Postdoctoral Research Fellow, Laboratoire Léon Brillouin, CEA-Saclay, FRANCE

2002-2007         Ph.D. in Condensed Matter Physics, Institute of Physics, CAS, China

1998-2002         B.S. in Physics, Shanxi University, China


Strong couplings of lattice, electron, spin, orbital degrees of freedom produce a rich variety of physical phenomena and also technologically important materials, including superconductors, multiferroics, and thermoelectrics, and quantum magnets. Neutrons and X-ray studies of structural and dynamic properties of these materials under various temperatures, fields, and pressures yield essential understanding of the relationships between those coupled degrees of freedoms and further guide new material development and application

Selected Publications

Zhai, K., Yan Wu, Shipeng Shen, Wei Tian, Huibo Cao, Yisheng Chai, B. C. Chakoumakos, Dashan Shang, Liqin Yan, Fangwei Wang, Young Sun, Giant magnetoelectric effects achieved by tuning spin cone symmetry in Y-type hexaferrites. Nature Communications 8, 519 (2017)

Liu, J.Y., J. Hu, Q. Zhang, D. Graf, H. B. Cao, S. M. A. Radmanesh, D. J. Adams, Y. L. Zhu, G. F. Cheng, X. Liu, W. A. Phelan, J. Wei, M. Jaime, F. Balakirev, D. A. Tennant, J. F. DiTusa, I. Chiorescu, L. Spinu, Z. Q. Mao, A magnetic topological semimetal Sr1−yMn1−zSb2 (y, z < 0.1).Nature Materials 16, 905–910 (2017).

L. Zhou, J. H. Dai, Y. S. Chai, H. M. Zhang, S. Dong, Huibo Cao, Stuart Calder, Y. Y. Yin, X. Wang, X. D. Sheng, Z. H. Liu, T. Saito, Y. Shimakawa, H. Hojo, Y. Ikuhara, M. Azuma, Z. Hu, Y. Sun, C. Q. Jin, Y. W. Long, Double multiferroic phases in the A-site ordered cubic perovskite BiMn3Cr4O12. Advanced Materials, 2017, 1703435 (2017).

May, A.F., Yaohua Liu, Stuart Calder, D.S. Parker, Tribhuwan Pandey, Ercan Cakmak, Huibo Cao, Jiaqiang Yan, M.A. McGuire, Magnetic order and interactions in ferrimagnetic Mn3Si2Te6. Physical Review B 95, 174440 (2017).

McGuire, M. A., V. O. Garlea, K. C. Santosh, V. R. Cooper, J.Q. Yan, Huibo Cao, B. C. Sales, Antiferromagnetism in the easily-cleavable spin-lozenge semiconductor CrTe3. Physical Review B 95, 144421 (2017).

W. Tian, Huibo Cao, Jincheng Wang, Feng Ye, M. Matsuda, J.-Q. YanYaohua Liu, V. O. Garlea, B. C. Chakoumakos,B. C. Sales, Randy S. Fishman, J. A. Fernandez-Baca, Spin-lattice coupling mediated multiferroicity in (ND4)2FeCl5D2O.Physical Review B, 94, 214405 (2016).

Song, Y., Zahra Yamani, Chongde Cao, Yu Li, Chenglin Zhang, Justin Chen, Qingzhen Huang, Hui Wu, Jing Tao, Yimei Zhu, Wei Tian, Songxue Chi, Huibo Cao, Yao-Bo Huang, Marcus Dantz, Thorsten Schmitt, Rong Yu, Andriy H. Nevidomskyy, Emilia Morosan, Qimiao Si, Pengcheng Dai, A Mott insulator continuously connected to iron pnictide superconductors. Nature Communications, 7, 13879 (2016).

Huibo Cao, A. Banerjee, J.-Q. Yan, C. B. Bridges, M. D. Lumsden, D. G. Mandrus, B. C. Chakoumakos, S. E. Nagler, Low-temperature crystal and magnetic structure of α-RuCl3. Physical Review B 93, 134423 (2016).

Wang, Q., Yao Shen, Bingying Pan, Yiqing Hao, Mingwei Ma, Fang Zhou, P. Steffens, K. Schmalzl, T. R. Forrest, M. Abdel-Hafiez, D. A. Chareev, A. N. Vasiliev, P. Bourges, Y. Sidis, Huibo Cao, Jun Zhao, Strong interplay between stripe spin fluctuations, nematicity and superconductivity in FeSe.Nature Materials 15, 159–163 (2016); Erratum 15, 244, (2016).

Ma, J., Y. Kamiya, Tao Hong, Huibo Cao, G. Ehlers, W. Tian, C. D. Batista, Z. L. Dun, H. D. Zhou, M. Matsuda, Static and dynamical properties of the spin-1/2 equilateral triangular-lattice antiferromagnet Ba3CoSb2O9. Physical Review Letters 116, 087201 (2016).

Kinoshita, M., S. Seki, T. J. Sato, Y. Nambu, T. Hong, M. Matsuda, Huibo Cao, S. Ishiwata, Y. Tokura, Magnetic reversal of electric polarization with fixed chirality of spin texture in a chiral-lattice helimagnet MnSb2O6. Physical Review Letters 117, 047201 (2016).

May, A.F., S. Calder, C. Cantoni, Huibo Cao, M. A. McGuire, Magnetic structure and phase stability of the van der Waals bonded ferromagnet Fe3-xGeTe2. Physical Review B 93, 014411 (2016).

Rodriguez, E.E., Huibo Cao, R. Haiges, B. C. Melot, Single crystal magnetic structure and susceptibility of CoSe2O5.Journal of Solid State Chemistry 236, 39-44 (2016).

Huibo Cao, Z.Y. Zhao, M. Lee, E.S. Choi, M.A. McGuire, B.C. Sales, H.D. Zhou, J.Q. Yan, D. Mandrus, "High pressure floating zone growth and structural properties of ferrimagnetic quantum paraelectric BaFe12O19", APL Materials, 3, 062512 (2015).

Dun, Z.L., X. Li, R. S. Freitas, E. Arrighi, C. R. dela Cruz, M. Lee, E. S. Choi, Huibo Cao, H. J. Silverstein, C. R. Wiebe, J. G. Cheng, H. D. Zhou, Order by disorder in XY pyrochlore antiferromagnets R2Ge2O7 (R = Er, Yb).Physical Review B 92, 140407(R) (2015).

Ma, J., J. H. Lee, S. E. Hahn, Tao Hong, Huibo Cao, A. A. Aczel, Z. L. Dun, M. B. Stone, W. Tian, Y. Qiu, J. R. D. Copley, H. D. Zhou, R. S. Fishman, M. Matsuda, Strong competition between orbital-ordering and itinerancy in a frustrated spinel vanadate. Physical Review B 91, 020407(R) (2015).

Z. L. Dun, J. Ma, Huibo Cao, Y. Qiu, J. R. D. Copley, T. Hong, M. Matsuda, J. G. Cheng, M. Lee, E. S. Choi, S. Johnston, and H. D. Zhou “Competition between the inter- and intra-sublattice interactions in Yb2V2O7” Physical Review B 91, 064425 (2015).

Taddei K.M., Sturza M., Chung D.Y., Huibo Cao, Claus H., Kanatzidis M.G., Osborn R., Rosenkranz S., Chmaissem O., "Cesium vacancy ordering in phase-separated CsxFe2-ySe2", Physical Review B 92, 9, 094505 (2015).

Taylor A.E., Berlijn T., Hahn S.E., May A.F., Williams T.J., Poudel L., Calder S., Fishman R.S., Stone M.B., Aczel A.A., Huibo Cao, Lumsden M.D., Christianson A.D., "Influence of interstitial Mn on magnetism in the room-temperature ferromagnet Mn1+δSb", Physical Review B 91, 22, 224418 (2015).

Tian W., Svoboda C., Ochi M., Matsuda M., Huibo Cao, Cheng J.G., Sales B.C., Mandrus D., Arita R., Trivedi N., Yan J.Q., "High antiferromagnetic transition temperature of the honeycomb compound SrRu2O6", Physical Review B 92, 100404 (2015

McGuire, M.A., Huibo Cao, B.C. Chakoumakos, B.C. Sales, Symmetry-lowering lattice distortion at the spin-reorientation in MnBi single crystals.Physical Review B 90, 174425(2014)

Huibo Cao, B.C. Chakoumakos, X. Chen, J.-Q. Yan, M.A. McGuire, H. Yang, R. Custelcean, H.D. Zhou, D.J. Singh, D. Mandrus, “Origin of the phase transition in IrTe2: Structural modulation and local bonding instability” Physical Review B 88, 115122 (2013).

A. Kiswandhi, J.S. Brooks, Huibo Cao, J.Q. Yan, D. Mandrus, Z. Jiang, and H.D. Zhou, “Competition between the structural phase transition and superconductivity in Ir1-xPtxTe2 as revealed by pressure effects” Physical Review B 87, 121107(R) (2013).

Huibo Cao, C. Cantoni, A.F. May,  M.A. McGuire, B.C. Chakoumakos, S.J. Pennycook,  R. Custelcean, A.S. Sefat, B.C. Sales, “Evolution of the nuclear and magnetic structures of TlFe1.6Se2 with temperature” Physical Review B 85, 054515 (2012).

J. Zhao, Huibo Cao, E. Bourret-Courchesne, D.-H. Lee, R.J. Birgeneau “Neutron-Diffraction Measurements of an Antiferromagnetic Semiconducting Phase in the Vicinity of the High-Temperature Superconducting State of KxFe2-ySe2” Physical Review Letters 109, 267003 (2012).

A.F. May, M.A. McGuire, Huibo Cao, I. Sergueev, C. Cantoni, B.C. Chakoumakos, D.S. Parker, B.C. Sales “Spin reorientation in TlFe1.6Se2 with complete vacancy ordering” Physical Review Letters 109, 077003 (2012).

F. Ye, S. Chi, J.A. Fernandez-Baca, Huibo Cao, K.-C. Liang, Y. Wang, B. Lorenz, C.W. Chu, “Magnetic order and spin-flop transition in the cobalt-doped multiferroic Mn1-xCoxWO4” Physical Review B 86, 094429 (2012).

F. Ye, S. Chi, Huibo Cao, B.C. Chakoumakos, J.A. Fernandez-Baca, R. Custelcean, T.F. Qi, O.B. Korneta, G. Cao, “Direct evidence of a zigzag spin-chain structure in the honeycomb lattice: A neutron and x-ray diffraction investigation of single-crystal Na2IrO3” Physical Review B, 85 180403(R) (2012).

B.C. Chakoumakos, Huibo Cao, F. Ye, A.D. Stoica, M. Popovici, M. Sundaram, W. Zhou, J.S. Hicks, G.W. Lynn, R.A. Riedel, “Four-circle single-crystal neutron diffractometer at the High Flux Isotope Reactor” Journal of Applied Crystallography 44, 655 (2011).

B.C. Sales, M.A. McGuire, A.F. May, Huibo Cao, B.C. Chakoumakos, A.S. Sefat, “Unusual phase transitions and magnetoelastic coupling in TlFe1.6Se2 single crystals” Physical Review B 83, 224510 (2011).

Huibo Cao, I. Mirebeau, A. Gukasov, P. Bonville, C. Decorse, “Field evolution of the magnetic structures in Er2Ti2O7 through the critical point” Physical Review B 82, 104431 (2010)

Huibo Cao, A. Gukasov, I. Mirebeau, P. Bonville, C. Decorse, G. Dhalenne, “Ising versus XY anisotropy in frustrated R2Ti2O7 compounds as seen by polarized neutrons” Physical Review Letters 103, 056402 (2009).

Huibo Cao, A. Gukasov, I. Mirebeau, P. Bonville, “Anisotropic exchange in frustrated pyrochlore Yb2Ti2O7” Journal of Physics: Condensed Matter 21, 492202 (2009).

I. Mirebeau, I. Goncharenko, Huibo Cao, A. Forget, “Magnetic order in Tb2Sn2O7 under high pressure: From ordered spin ice to spin liquid and antiferromagnetic order” Physical Review B 80, 220407(R) (2009).

Huibo Cao, I. Mirebeau, A. Gukasov, P. Bonville, “Field induced ground states in Tb2Ti2O7 spin liquid” Journal of Physics: Conference Series 145 012021 (2009).

I. Mirebeau, I. Goncharenko, Huibo Cao,“Spin ice and soft spin ice ground state under high pressure: comparative study by neutron scattering” High Pressure Research 30, 3 (2010)

A. Gukasov, Huibo Cao, I. Mirebeau, P. Bonville, “Spin Density and Non-Collinear Magnetization in Frustrated Pyrochlore Tb2Ti2O7 from Polarized Neutron Scattering” Physica B: Condensed Matter 404, 2509 (2009).

Huibo Cao, A. Gukasov, I. Mirebeau, P. Bonville, G. Dhalenne, “Field-Induced Spin-Ice-Like Orders in Spin Liquid Tb2Ti2O7” Physical Review Letters 101, 196402 (2008).

Huibo Cao, D. Chen, L. He, J. Zhang, F. Wang, Z. Wu, Q. Yan, “Determination of the Sites of Fe atoms in Fe-substituted Mn-12”, Chinese Physics 16, 0784 (2007).

Huibo Cao, L. He, J. Zhang, X. Zhang, F. Wang, Q. Yan, “Quantum tunneling of magnetization in Fe-substituted Mn-12 studied by ac magnetic susceptibility” Physical Review B 72, 054445 (2005).