Publications

2024

Y. Chen, Z. Lun, X. Zhao, K. P. Koirala, L. Li, Y. Sun, C. A. O’Keefe, X. Yang, Z. Cai, C. Wang, H. Ji*, C. P. Grey*, B. Ouyang*, G. Ceder*. Unlocking Li superionic conductivity in face-centred cubic oxides via face-sharing configurations. Nat. Mater. (2024). https://www.nature.com/articles/s41563-024-01800-8

2023

E. A. Lawrence, X. Huai, D. Kim, M. Avdeev, Y. Chen, G. Skorupskii, A. Miura, A. Ferrenti, M. Waibel, S. Kawaguchi, N. Ng, B. Kaman, Z. Cai, L. M. Schoop, S. Kushwaha, F. Liu, T. T. Tran, H. Ji*. Fe site order and magnetic properties of Fe_1/4NbS₂. Inorg. Chem. 62, 44, 18179–18188 (2023).

Z. Cai, B. Ouyang, H.-M. Hau, T. Chen, R. Giovine, K. P. Koirala, L. Li, H. Ji, Y. Ha, Y. Sun, J. Huang, Y. Chen, V. Wu, W. Yang, C. Wang, R. J. Clément, Z. Lun, G. Ceder. In situ formed partially disordered phases as earth-abundant Mn-rich cathode materials. Nat. Energy 9, 27–36 (2024).

E. A. Lawrence, M. A. Davenport, R. Devi, Z. Cai, M. Avdeev, J. R. Belnap, J. Liu, H. Alnaser, A. Ho, T. D. Sparks, G. S. Gautam, J. M. Allred*, H. Ji*. Reversible Electrochemical Lithium Cycling in a Vanadium(IV)- and Niobium(V)-Based Wadsley–Roth Phase. Chem. Mater. 35(9) 3470–3483 (2023).

C. Ramette, L. Pressley, M. Avdeev, M. Lee, S. Kushwaha, M. Krogstad, S. Sarker, P. Cardon, J. Ruff, M. Khan, K. Kataoka, T. M. McQueen, H. Ji*. Floating zone crystal growth, structure, and properties of a cubic Li_5.5La₃Nb_1.5Zr_0.5O₁₂ garnet-type lithium-ion conductor. J. Mater. Chem. A,  11, 21754-21766 (2023).

2022

Y. Chen, Z. Cai, C. Ramette, H. Ji*. Lithium-Ion Conduction in a Class of Aluminoborates Li_nMAlB₁₂O₂₄ (M = Ba, Sr, Ca, or La; n = 7 or 6). Mater. Res. Bull. 159, 112087 (2023).

2021

Y. Chen, C. J. Bartel, M. Avdeev, Y.-Q. Zhang, J. Liu, P. Zhong, G. Zeng, Z. Cai, H. Kim, H. Ji*, G. Ceder*. Solid-State Calcium-Ion Diffusion in Ca_1.5Ba_0.5Si₅O₃N₆. Chem. Mater. 34, 1, 128–139 (2021).

Z. Cai, H. Ji*, Y. Ha, J. Liu, D.-H. Kwon, Y. Zhang, A. Urban, E. E. Foley, R. Giovine, H. Kim, Z. Lun, T.-Y. Huang, G. Zeng, Y. Chen, J. Wang, B. D. McCloskey, M. Balasubramanian, R. J. Clément, W. Yang, G. Ceder*. Realizing continuous cation order-to-disorder tuning in a class of high-energy spinel-type Liion cathodes. Matter 4, 3897–3916 (2021).

M. Yahyaoglu, M. Ozen, Y. Prots, O. El Hamouli, V. Tshitoyan, H. Ji, U. Burkhardt, B. Lenoir, G. J. Snyder, A. Jain, C. Candolfi, U. Aydemir. Phase-Transition-Enhanced Thermoelectric Transport in Rickardite Mineral Cu_3–xTe₂. Chem. Mater. 33, 5, 1832–1841 (2021).

Prior to U of Utah (2010 – 2020)

Z. Lun, B. Ouyang, D.-H. Kwon, Y. Ha, E.E. Foley, T.-Y, Huang, Z. Cai, H. Kim, M. Balasubramanian, Y. Sun, J. Huang, Y. Tian, H. Kim, B.D. McCloskey, W. Yang, R.J. Clement, H. Ji* & G. Ceder*. Cation-disordered rocksalt-type high-entropy cathodes for Li-ion batteries. Nat. Mater. (2020). https://doi.org/10.1038/s41563-020-00816-0

H. Ji, J. Wu, Z. Cai, J. Liu, D.-H. Kwon, H. Kim, A. Urban, J.K. Papp, E. Foley, Y. Tian, M. Balasubramanian, H. Kim, R.J. Clement, B.D. McCloskey, W. Yang & G. Ceder*. Ultrahigh power and energy density in partially ordered Li-ion cathode materials. Nat. Energy 5, 213-221 (2020).  

B. Ouyang, N. Artrith, Z. Lun, Z. Jadidi, D.A. Kitchaev, H. Ji, A. Urban & G. Ceder. Effect of fluorination on Li transport and short-range order in disordered-rocksalt-type Li-ion battery cathodes. Adv. Energy Mater. 10, 1903240 (2020).

H. Ji, A. Urban, D.A. Kitchaev, D.-H. Kwon, N. Artrith, C. Ophus, W. Huang, Z. Cai, T. Shi, J.C. Kim, H. Kim & G. Ceder*. Hidden structural and chemical order controls lithium transport in cation-disordered oxides for rechargeable batteries. Nat. Commun. 10, 592 (2019).

H. Ji†, D.A. Kitchaev†, Z. Lun, D.-H. Kwon, H. Kim, Y. Tian, M. Balasubramanian, M. Bianchini, J.C. Kim & G. Ceder*. Computational investigation and experimental realization of disordered high-capacity Li-ion cathodes based on Ni redox. Chem. Mater. 31, 2431–2442 (2019).

H. Kim†, H. Ji†, J. Wang & G. Ceder*. Next-Generation Cathode Materials for Non-aqueous K-Ion Batteries. Trends in Chemistry, 1(7), 682-692 (2019).

M.T. Randeria, K. Agarwal, B.E. Feldman, H. Ding, H. Ji, R.J. Cava, S.L. Sondhi, S.A. Parameswaran & A. Yazdani*. Interacting multi-channel topological boundary modes in a quantum Hall valley system. Nature 566, 363–367 (2019).

F. von-Rohr, A. Ryser, H. Ji, K. Stolze, J. Tao, J.J. Frick. G.R. Patzke & R.J. Cava*. The h-Sb_xWO_3+2x oxygen excess antimony tungsten bronze. Chem.: Eur. J. 25, 2082–2088 (2019).

M.T. Randeria, B.E. Feldman, F. Wu, H. Ding, A. Gyenis, H. Ji, R.J. Cava, A.H. MacDonald & A. Yazdani*. Ferroelectric quantum Hall phase revealed by visualizing Landau level wavefunction interference. Nat. Phys. 14, 796–800, (2018).

D.A. Kitchaev, Z. Lun, W.D. Richards, H. Ji, R.J. Clément, M. Balasubramanian, D.-H. Kwon, K. Dai, J.K. Papp, T. Lei, B.D. McCloskey, W. Yang, J. Lee & G. Ceder*. Design principles for high transition metal capacity in disordered rocksalt Li-ion cathodes. Energ. Environ. Sci. 11, 2159 (2018).

F. von-Rohr, H. Ji, F.A. Cevallos, T. Gao, N.P. Ong & R.J. Cava*. High-pressure synthesis and characterization of β-GeSe—a six-membered-ring semiconductor in an uncommon boat conformation. J. Am. Chem. Soc. 139(7), 2771–2777 (2017).

C. Gong, L. Li, Z. Li, H. Ji, A. Stern, Y. Xia, T. Cao, W. Bao, C. Wang, Y. Wang, Z. Q. Qiu, R. J. Cava, S. G. Louie, J. Xia & Xiang Zhang*. Intrinsic ferromagnetism in two-dimensional van der Waals crystals. Nature 546(7657), 265 (2017).

H.Ji*, G. Sahasrabudhe, M.K. Vallon, J. Schwartz, A.B. Bocarsly & R.J. Cava*. Investigating the origin of Co(IV)’s high electrocatalytic activity in the oxygen evolution reaction at a Na_xCoO₂ interface. Mater. Res. Bull. 95, 285–291 (2017).

S.L. Bergman, G. Sahasrabudhe, H. Ji, R.J. Cava & S.L. Bernasek*. Useful X-ray Photoelectron Spectroscopy-Based Chemical Tool: Differential Charging Studies of Complex Composite Materials. Chem. Mater. 29(10), 4162–4166 (2017).

H. Ji, I. Pletikosić, Q.D. Gibson, G. Sahasrabudhe, T. Valla & R.J. Cava*, Strong topological metal material with multiple Dirac cones. Phys. Rev. B 93, 045315 (2016).

B.E. Feldman, M.T. Randeria, A. Gyenis, F. Wu, H. Ji, R.J. Cava, A.H. MacDonald & A. Yazdani*. Observation of a nematic quantum Hall liquid on the surface of bismuth. Science 354, 316–321 (2016).

Yao Tian, M.J. Gray, H. Ji, R. J. Cava, and K.S. Burch*, Magneto-Elastic coupling in a potential ferromagnetic 2D atomic crystal. 2D Materials 3(2), 025035 (2016).

A.P. Weber, Q.D. Gibson, H. Ji, A.N. Caruso, A.V. Fedorov, R.J. Cava & T. Valla, Gapped surface states in a strong-topological-insulator material. Phys. Rev. Lett. 114, 256401 (2015).

I.K. Drozdov, A. Alexandradinata, S. Jeon, S. Nadj-Perge, H. Ji, R.J. Cava, B.A. Bernevig & A. Yazdani*. One-dimensional topological edge states of bismuth bilayers. Nat. Phys. 10, 664–669 (2014).

L.D. Alegria, H. Ji, N. Yao, J.J. Clarke, R.J. Cava & J.R. Petta*. Large anomalous Hall effect in ferromagnetic insulator-topological insulator heterostructures. Appl. Phys. Lett. 105, 053512 (2014).

H. Ji, R.A. Stokes, L.D. Alegria, E.C. Blomberg, M.A. Tanatar, A. Reijnders, L.M. Schoop, T. Liang, R. Prozorov, K.S. Burch, N.P. Ong, J. R. Petta & R.J. Cava*. A ferromagnetic insulating substrate for the epitaxial growth of topological insulators. J. Appl. Phys. 114, 114907 (2013).

H. Ji*, A. Reijnders, T. Liang, L.M. Schoop, K.S. Burch, N.P. Ong & R.J. Cava. Crystal Structure and Elementary Electronic Properties of Bi-stabilized α-In₂Se₃. Mater. Res. Bull. 48, 2517–2521 (2013).

R.J. Cava*, H. Ji, M.K .Fuccillo, Q.D. Gibson & Y.S. Hor. Crystal structure and chemistry of topological insulators. J. Mater. Chem. C 1, 3176 (2013).

M.N. Ali, H. Ji, D. Hirai, M.K. Fuccillo & R.J. Cava*. Synthesis and characterization of two crystallographic forms of Ag_0.79VS₂. J. Solid State Chem. 202, 77–84 (2013).

H. Ji, J.M. Allred, M.K. Fuccillo, M. Neupane, L.A. Wray, M.Z. Hasan & R. J. Cava*. Bi₂Te_1.6S_1.4: A topological insulator in the tetradymite family. Phys. Rev. B 85, 201103(R) (2012).

H. Ji, J.M. Allred, N. Ni, J. Tao, M. Neupane, A. Wray, S. Xu, M.Z. Hasan & R.J. Cava*. Bulk intergrowth of a topological insulator with a room-temperature ferromagnet. Phys. Rev. B 85, 165313 (2012).

T. Valla, H. Ji, L.M. Schoop, A.P. Weber, Z.–H. Pan, J.T. Sadowski, E. Vescovo, A.V. Fedorov, A.N. Caruso, Q.D. Gibson, L. Muchler, C. Felser & R. J. Cava*. Topological semimetal in a Bi-Bi₂Se₃ infinitely adaptive superlattice phase. Phys. Rev. B 86, 241101(R) (2012). 28. S. Jia, H. Ji, E. Climent-Pascual, M.K. Fuccillo, M.E. Charles, J. Xiong, N.P. Ong & R.J. Cava*. Low-carrier-concentration crystals of the topological insulator Bi₂Te₂Se.Phys. Rev. B 84, 235206 (2011).