Publications

CoTe2: A quantum critical Dirac metal with strong spin fluctuations
Peter E. Siegfried, Hari Bhandari, Jeanie Qi, Rojila Ghimire, Jayadeep Joshi, Zachary T. Messegee, Willie Beeson, Kai Liu, Madhav Prasad Ghimire, Yanliu Dang, Huairuo Zhang, Albert Davydov, Xiaoyan Tan, Patrick M. Vora, Igor I. Mazin, Nirmal J. Ghimire. Preprint: arXiv:2208.13334

Origin of spin reorientation and intrinsic anomalous Hall effect in the kagome ferrimagnet TbMn6Sn6
D. Connor Jones, Suvadip Das, Hari Bhandari, Xiaoxiong Liu, Peter Siegfried, Madhav P. Ghimire, Stepan S. Tsirkin, I. I. Mazin, Nirmal J. Ghimire. Preprint: arXiv:2203.17246

CoTe2: A quantum critical Dirac metal with strong spin fluctuations
Peter E. Siegfried, Hari Bhandari, Jeanie Qi, Rojila Ghimire, Jayadeep Joshi, Zachary T. Messegee, Willie Beeson, Kai Liu, Madhav Prasad Ghimire, Yanliu Dang, Huairuo Zhang, Albert Davydov, Xiaoyan Tan, Patrick M. Vora, Igor I. Mazin, Nirmal J. Ghimire. Preprint: arXiv:2208.13334

LiMo8O10: Polar Crystal Structure with Infinite Edge-Sharing Molybdenum Octahedra.
Zachary T. Messegee, Philippe Gall, Hari Bhandari, Peter E. Siegfried, Chang-Jong Kang, Benjamin Chen, Carl R. Conti, III, Banghao Chen, Mark Croft, Qiang Zhang, Syed N. Qadri, Joseph Prestigiacomo, Nirmal J. Ghimire, Patrick Gougeon, and Xiaoyan Tan. Inorganic Chemistry.https://doi.org/10.1021/acs.inorgchem.2c01917

Ultralow Lattice Thermal Conductivity in Metastable Ag2GeS3 Revealed by a Combined Experimental and Theoretical Study
Callista M. Skaggs, Andrew P. Justl, Ankita Biswas, Peter E. Siegfried, Shunshun Liu, Saul H. Lapidus, Wenqian Xu, Zachary T. Messegee, Nirmal J. Ghimire, Prasanna V. Balachandran, Susan M. Kauzlarich, and Xiaoyan Tan. Chemistry of Materials 2022, 34, 14, 6420–6430. 

Visualizing the out-of-plane electronic dispersions in an intercalated transition metal dichalcogenide.
Xian P. Yang, Harrison LaBollita, Zi-Jia Cheng, Hari Bhandari, Tyler A. Cochran, Jia-Xin Yin, Md. Shafayat Hossain, Ilya Belopolski, Qi Zhang, Yuxiao Jiang, Nana Shumiya, Daniel Multer, Maksim Liskevich, Dmitry A. Usanov, Yanliu Dang, Vladimir N. Strocov, Albert V. Davydov, Nirmal J. Ghimire, Antia S. Botana, M. Zahid Hasan. Physical Review B, 105, L121107 (2022). Priprint at arXiv:2203.00675

Magnetization-driven Lifshitz phase transition and charge-spin coupling in the kagome metal YMn6Sn6.
Peter Siegfried, Hari Bhandari, D Jones, Madhav Ghimire, Rebecca Dally, L Poudel, M Bleuel, Jeffrey Lynn, Igor Mazin, Nirmal Ghimire. Communications Physics, 5 58 (2022).

Iridate Li8IrO6: An Antiferromagnetic Insulator.
Callista M. Skaggs, Peter E. Siegfried, Chang-Jong Kang, Craig M. Brown, Fu Chen, Lu Ma, Steven N. Ehrlich, Yan Xin, Mark Croft, Wenqian Xu, Saul H. Lapidus, Nirmal J. Ghimire, and Xiaoyan Tan. Inorg. Chem.60, 17201−17211 (2021).

High-throughput search for magnetic topological materials using spin-orbit spillage, machine-learning and experiments.
Kamal Choudhary, Kevin F. Garrity, Nirmal J. Ghimire, Naween Anand, Francesca Tavazza. Physical Review B 103, 155131 (2021). Preprint:arXiv:2102.00237

Isotropic Nature of the Metallic Kagome Ferromagnet Fe₃Sn₂ at High Temperatures.
Rebecca L. Dally, Daniel Phelan, Nicholas Bishop, Nirmal J. Ghimire, Jeffrey W. Lynn. Crystals,  11, 307 (2021).

Chiral properties of the zero-field spiral state and field-induced magnetic phases of the itinerant kagome metal YMn6Sn6.
Rebecca L. Dally, Dina Michel, Peter Siegfried, Igor I. Mazin, Nirmal J. Ghimire, Jeffrey W. Lynn.  Physical Review B, 103, 094413 (2021).
Preprint: arXiv:2012.13010

Competing magnetic phases and fluctuation-driven scalar spin chirality in the kagome metal YMn6Sn6.
Nirmal J. Ghimire, Rebecca L. Dally, L. Poudel, D. C. Jones, D. Michel, N. Thapa Magar, M. Bleuel, Michael A. McGuire, J. S. Jiang, J. F. Mitchell, Jeffrey W. Lynn, I. I. Mazin. Science Advances 6, eabe2680 (2020).

Fermi surface topology and nontrivial Berry phase in the flat-band semimetal ${\mathrm{Pd}}_3\mathrm{Pb.}$Mojammel A. Khan, Po-Hao Chang, Nirmal Ghimire, Terence M. Bretz-Sullivan, Anand Bhattacharya, J. S. Jiang, John Singleton, and J. F. Mitchell.Physical Review B 101, 245113 (2020).
arXiv preprint arXiv:2006.01871

Giant anomalous Hall effect in quasi-two-dimensional layered antiferromagnet Co1/3NbS2.
Giulia Tenasini, Edoardo Martino, Nicolas Ubrig, Nirmal J. Ghimire, Helmuth Berger, Oksana Zaharko, Fengcheng Wu, J. F. Mitchell, Ivar Martin, László Forró, and Alberto F. Morpurgo. Physical Review Research 2, 023051 (2020).

Topology and correlations on the kagome lattice.
Nirmal J. Ghimire & Igor I. Mazin. Nature Materials 19, 130 (2020).

A New Three-Dimensional Subsulfide Ir₂In₈S with Dirac Semimetal Behavior.
Jason F. Khoury, Alexander J. E. Rettie, Mojammel A. Khan, Nirmal J. Ghimire, Iñigo Robredo, Jonathan E. Pfluger, Koushik Pal, Chris Wolverton, Aitor Bergara, J. S. Jiang, Leslie M. Schoop, Maia G. Vergniory, J. F. Mitchell, Duck Young Chung, Mercouri G. Kanatzidis.Journal of American Chemical Society 141, 48, 19130-19137 (2019). 

51V-NMR study on the S= 1/2 square lattice antiferromagnet K2V3O8.
H Takeda, H Yasuoka, M Yoshida, M Takigawa, NJ Ghimire, D Mandrus, BC Sales. Physical Review B 100, 054406 (2019).
Preprint arXiv:1904.00909 

Resonant torsion magnetometry in anisotropic quantum materials.
K. A. Modic, Maja D. Bachmann, B. J. Ramshaw, F. Arnold, K. R. Shirer, Amelia Estry, J. B. Betts, Nirmal J. Ghimire, E. D. Bauer, Marcus Schmidt, Michael Baenitz, E. Svanidze, Ross D. McDonald, Arkady Shekhter, Philip J. W. Moll. Nature Communications 9, 3975 (2018).

Large anomalous Hall effect in the chiral-lattice antiferromagnet CoNb₃S₆.
Nirmal. J. Ghimire, A. S. Botana, J. S. Jiang, Junjie Zhang, Y.-S. Chen & J. F. Mitchell.  Nature Communications 9, 3280 (2018).
Highlighted by the editor, Featured in Argonne National Laboratory 

Anisotropic angular magnetoresistance and Fermi surface topology of the candidate novel topological metal Pd₃Pb.
Nirmal J. Ghimire,Mojammel A. Khan, A. S. Botana, J. S. Jiang, and J. F. Mitchell.  Physical Review Materials  2, 081201(2018)(R).
Highlighted by the editor. Preprint from OSTI

Tunable emergent heterostructures in a prototypical correlated metal.
David M Fobes, S Zhang, S-Z Lin, Pinaki Das, NJ Ghimire, ED Bauer, JD Thompson, LW Harriger, G Ehlers, A Podlesnyak, RI Bewley, A Sazonov, V Hutanu, F Ronning, CD Batista, M Janoschek.  Nature Physics 14, 465 (2018).
Preprint from arXiv

Extended exchange interactions stabilize long-period magnetic structures in Cr_1∕3NbS _2.
A. A. Aczel, L. M. DeBeer-Schmitt, T.  J. Williams, M. A. McGuire, N. J. Ghimire, L. Li, and D. Mandrus.  Applied Physics Letters 113, 032404 (2018).
Preprint from arXiv

Quantum limit transport and destruction of the Weyl nodes in TaAs.
B. J. Ramshaw, K. A. Modic, Arkady Shekhter, Yi Zhang, Eun-Ah Kim, Philip J. W. Moll, Maja D. Bachmann, M. K. Chan, J. B. Betts, F Balakirev, A. Migliori, N. J. Ghimire, E. D. Bauer, F. Ronning, R. D. McDonald.  Nature Communications 9, 2217 (2018).

Nuclear magnetic resonance investigation of the heavy fermion system Ce₂CoAl₇Ge₄.
A. P. Dioguardi,P. Guzman,P. F. S. Rosa,  N. J. Ghimire,S. E. Brown,J. D. Thompson,E. D. Bauer,  and F. Ronning. Physical Review B 96, 245132 (2017). Preprint from arXiv

Realization of the Axial Next-Nearest-Neighbor Ising model in U₃Al₂Ge₃.
David M Fobes, Shi-Zeng Lin, Nirmal J Ghimire, Eric D Bauer, Joe D Thompson, Markus Bleuel, Lisa M DeBeer-Schmitt, Marc Janoschek,  Physical Review B 96, 174413 (2017). Preprint from arXiv

Origin of the Extremely Large Magnetoresistance in the Semimetal YSb.
J. Xu, N. J. Ghimire, J. S. Jiang, Z. L. Xiao, A. S. Botana, Y. L. Wang, Y. Hao, J. E. Pearson, W. K. Kwok. Physical Review B 96, 075159 (2017).
Preprint from arXiv

Inducing superconductivity in Weyl semimetal microstructures by selective ion sputtering.
Maja D Bachmann, Nityan Nair, Felix Flicker, Roni Ilan, Tobias Meng, Nirmal J Ghimire, Eric D Bauer, Filip Ronning, James G Analytis, Philip JW Moll. Science Advances 3, e1602983 (2017).

Anisotropy of Spin Fluctuations in a Tetragonal Heavy Fermion Antiferromagnet CeRhAl₄Si₂.
H Sakai, T Hattori, Y Tokunaga, S Kambe, NJ Ghimire, F Ronning, ED Bauer, JD Thompson.  Journal of Physics: Conference Series 868, 012012 (2017).

Distinct Electronic Structure for the Extreme Magnetoresistance in YSb.
Junfeng He, Chaofan Zhang, Nirmal J Ghimire, Tian Liang, Chunjing Jia, Juan Jiang, Shujie Tang, Sudi Chen, Yu He, S-K Mo, CC Hwang, M Hashimoto, DH Lu, B Moritz, TP Devereaux, YL Chen, JF Mitchell, Z-X Shen. Physical Review Letters 117, 267201 (2016).
Preprint from arXiv

Exchange field effect in the crystal-field ground state of CeMAl₄Si₂.
K. Chen, F. Strigari, M. Sundermann, S. Agrestini, N. J. Ghimire, S.-Z. Lin, C. D. Batista, E. D. Bauer, J. D. Thompson, E. Otero, A. Tanaka, and A. Severing.   Physical Review B 94, 115111 (2016).

Magnetic torque anomaly in the quantum limit of the Weyl semi-metal NbAs.
Philip JW Moll, Andrew C Potter, Nityan L Nair, BJ Ramshaw, KA Modic, Scott Riggs, Bin Zeng, Nirmal J Ghimire, Eric D Bauer, Robert Kealhofer, Filip Ronning, James G Analytis. Nature Communications 7, 12492 (2016).

Electronic structure of the chiral helimagnet and 3 d-intercalated transition metal dichalcogenide Cr_1/3NbS₂.
N Sirica, S-K Mo, F Bondino, I Pis, S Nappini, P Vilmercati, J Yi, Z Gai, PC Snijders, PK Das, I Vobornik, N Ghimire, MR Koehler, L Li, D Sapkota, DS Parker, DG Mandrus, N Mannella.   Physical Review B 94, 075141 (2016).
Preprint from OSTI

Anomalous electronic structure and magnetoresistance in TaAs₂.
Yongkang Luo, RD McDonald, PFS Rosa, B Scott, N Wakeham, NJ Ghimire, ED Bauer, JD Thompson, F Ronning. Scientific Report 6, 27294 (2016).

N. J. Ghimire, D. Phelan, H. Zheng, and J. F. Mitchell. Magnetotransport of single crystalline YSb. Journal of Physics: Condensed Matter 28, 235601 (2016). Preprint from arXiv

Physical properties of the Ce₂MAl₇Ge₄(M = Co, Ir, Ni, Pd) heavy fermion compounds.
N. J. Ghimire, S. Cary, S.  Eley, N. A. Wakeham, P. R. F. S. Rosa, T. Albrecht-Schmitt, Y. Lee, L. Civale, R. Movshovich, Joe D. Thompson, F. Ronning, E. D. Bauer.  Physical Review B 93, 205141 (2016).
Preprint from OSTI

“Hard” crystalline lattice in the Weyl Semimetal NbAs.
Y. Luo, N. J. Ghimire, E. D. Bauer, J. D. Thompson, F. Ronning.  Journal of Physics: Condensed Matter 28, 055502(2016).

Incommensurate to commensurate antiferromagnetism in CeRhAl₄Si₂: An ²⁷Al NMR Study.
H. Sakai, T. Hattori, Y. Tokunaga, S. Kambe, N. J. Ghimire, F. Ronning, E. D. Bauer, and J. D. Thompson.  Physical Review B 93, 014402 (2016).
Preprint from OSTI

Electron-hole compensation effect between topologically trivial electrons and nontrivial holes in NbAs.
Y. Luo, N. J. Ghimire, M. Wartenbel, M. Neupane, R. D. McDonald, E. D. Bauer, J. D. Thompson, F. Ronning.Physical Review B 92, 205134 (2015)

Magnetic structure of the Kondo lattice compounds CeRhAl₄Si₂ and CeIrAl₄Si₂.
N. J. Ghimire, S. Calder, M. Janoschek and E. D.  Bauer. Journal of Physics: Condensed Matter 27, 245603 (2015).

Out-of-plane spin-orientation dependent magnetotransport in the anisotropic helimagnet Cr_1/3NbS₂.
Alexander C. Bornstein, Benjamin J. Chapman, Nirmal J. Ghimire, David G. Mandrus, David S. Parker, Minhyea Lee.  Physical Review B 91, 184401 (2015).

Magnetocrystalline anisotropy in UMn₂Ge₂and related Mn-based actinide ferromagnets.
David S. Parker, Nirmal Ghimire, R. Baumbach, Ling Li, John Singleton, Eric D. Bauer, David Mandrus, David J. Singh.  Physical Review B 91, 174401 (2015).

Magnetotransportof single crystalline NbAs.
N. J. Ghimire, Yongkang Luo, D. J. Williams, E. D. Bauer and F. Ronning. Journal of Physics: Condensed Matter 27, 152201 (2015).

Observation of Long-Lived Interlayer Excitons in Monolayer MoSe2-WSe2 Heterostructures.
Pasqual Rivera, John R. Schaibley, Aaron M. Jones, Jason S. Ross, Sanfeng Wu, Grant Aivazian, Philip Klement,Nirmal J. Ghimire, Jiaqiang Yan, D. G. Mandrus, Wang Yao, Xiaodong Xu. Nature Communications 6, 6242 (2015).

Investigation of the physical properties of the tetragonal CeMAl₄Si₂(M = Rh, Ir, Pt) compounds.
N. J. Ghimire, F. Ronning, D. J. Williams, B. L. Scott, Yongkang, Luo, J. D. Thompson, E. D. Bauer. Journal of Physics: Condensed Matter 27, 025601 (2015).

The magnitude of the magnetic exchange interaction in the heavy fermion antiferromagnet CeRhIn₅.
Pinaki Das, S. -Z. Lin, N. J. Ghimire, K. Huang, F. Ronning, E. D. Bauer, J. D. Thompson, C. D. Batista, G. Ehlers, M. Janoschek. Physical Review Letters 113, 246403 (2014).

Probing excitonic states in suspended two-dimensional semiconductors by photocurrent spectroscopy.
R. Klots, A. K. M. Newaz, Bin Wang, D. Prasai, H. Krzyzanowska, Junhao Lin, D. Caudel, N. J. Ghimire, J. Yan, B. L. Ivanov, K. A. Velizhanin, A. Burger, D. G. Mandrus, N. H. Tolk, S. T. Pantelides & K. I. Bolotin. Scientific Reports 4, 6608 (2014).

Benjamin J. Chapman, Alexander C. Bornstein, Nirmal J. Ghimire, David Mandrus and Minhyea Lee.  Spin structure of the anisotropic helimagnet Cr_1/3NbS₂in a magnetic field. Applied Physics Letters  105, 072405(2014).

Coherent Electronic Coupling in Atomically Thin MoSe₂. 
Akshay Singh, Galan Moody, Sanfeng Wu, Yanwen Wu, Nirmal J. Ghimire, Jiaqiang Yan, David G. Mandrus, Xiaodong Xu, and  Xiaoqin Li.  Physical Review Letters 112, 216804 (2014).

High Mobility WSe₂p- and n-Type Field-Effect Transistors Contacted by Highly Doped Graphene for Low-Resistance Contacts.
Hsun-Jen Chuang, Xuebin Tan, Nirmal Jeevi Ghimire, Meeghage Madusanka Perera, Bhim Chamlagain, Mark Ming-Cheng Cheng, Jiaqiang Yan, David Mandrus, David Tománek, and Zhixian Zhou.   Nano Letters 14, 3594-3601 (2014).

Flexible metallic nanowires with self-adaptive contacts to semiconducting transition-metal dichalcogenide monolayers.
Junhao Lin, Ovidiu Cretu, Wu Zhou, Kazu Suenaga, Dhiraj Prasai, Kirill I. Bolotin, Nguyen Thanh Cuong, Minoru Otani, Susumu Okada, Andrew R. Lupini, Juan-Carlos Idrobo, Dave Caudel, Arnold Burger,Nirmal J. Ghimire, Jiaqiang Yan, David G. Mandrus, Stephen J. Pennycook & Sokrates T. Pantelides. Nature Nanotechnology  9, 436-442 (2014).

Mobility Improvement and Temperature Dependence in MoSe₂Field-Effect Transistors on Parylene-C Substrate.
Bhim Chamlagain, Qing Li, Nirmal Jeevi Ghimire, Hsun-Jen Chuang, Meeghage Madusanka Perera, Honggen Tu, Yong Xu, Minghu Pan, Di Xaio, Jiaqiang Yan, David Mandrus, and  Zhixian Zhou.  ACS Nano 8, 5079-5088 (2014).

Control of two-dimensional excitonic light emission via photonic crystal.
Sanfeng Wu, Sonia Buckley, Aaron M. Jones, Jason S. Ross, Nirmal J. Ghimire, Jiaqiang Yan, David G. Mandrus, Wang Yao, Fariba Hatami, Jelena Vučković, Arka Majumdar and Xiaodong Xu.    2D Materials 1, 011001 (2014).

Suppression of antiferromagnetism by pressure in CaCo₂P₂.
R. E. Baumbach, V. A. Sidorov, Xin Lu, N. J. Ghimire, F. Ronning, B. L. Scott, D. J. Williams, E. D. Bauer, and J. D. Thompson.  Physical Review B 89, 094408 (2014).

Electrically tunable excitonic light emitting diodes based on monolayer WSe₂p-n junctions.
Jason S. Ross, Philip Klement, Aaron M. Jones, Nirmal J. Ghimire, Jiaqiang Yan, D. G. Mandrus, Takashi Taniguchi, Kenji Watanabe, Kenji Kitamura, Wang Yao, David H Cobden & Xiaodong Xu.  Nature Nanotechnology 9, 268-272 (2014).

Spin-layer locking effects in optical orientation of exciton spin in bilayer WSe₂.
Aaron M. Jones, Hongyi Yu, Jason S. Ross, Philip Klement, Nirmal J. Ghimire, Jiaqiang Yan, David G.  Mandrus, Wang Yao & Xiaodong Xu.   Nature Physics  10, 130-134 (2014).

Optical manipulation and electrical control of valley pseudo-spins in atomically thin semiconductors.
Sanfeng, Wu, Jason, S. Ross, Chunming Huang, Nirmal J. Ghimire, Jiaqiang Yan, David G. Mandrus, Di Xiao, Wang, Yao, David H Cobden, Xiaodong Xu.   Proceedings of SPIE 8813, 88132I (2013).

Optical generation of excitonic valley coherence in monolayer WSe₂.
Aaron M. Jones, Hongyi Yu, Nirmal Ghimire, Sanfeng Wu, Grant Aivazian, Jason S. Ross, Bo Zhao, Jiaqiang Yan, David G. Mandrus, Di Xiao, Wang Yao & Xiaodong Xu. Nature Nanotechnology 8, 634 (2013).

Electrical control of neutral and charged excitons in a monolayer semiconductor.
Jason S. Ross, Sanfeng Wu, Hongyi Yu, NirmalJ. Ghimire, Aaron M. Jones, Grant Aivazian, Jiaqiang Yan, David G. Mandrus, Di Xiao, Wang Yao & Xiaodong Xu.  Nature Communications  4, 1474 (2013).

Magnetic phase transition in single crystals of the chiral helimagnet Cr_1/3NbS₂.
N. J. Ghimire, M. A. McGuire, D. S. Parker, B. Sipos, S. Tang, J.-Q. Yan, B. C. Sales, and D. Mandrus. Physical Review B  87, 104403 (2013).

Hard ferromagnetism in melt-spun Hf₂Co₁₁B alloys.
Michael. A. McGuire, Orlando Rios, Nirmal J. Ghimireand Michael Koehler.  Applied Physics Letters 101, 202401 (2012).

Complex itinerant ferromagnetism in noncentrosymmetric Cr₁₁Ge₁₉.
N. J. Ghimire, M. A. McGuire, D. S. Parker, B. C. Sales, J.-Q. Yan, V. Keppens, M. Koehler, R. M. Latture, and D. Mandrus. Physical Review B 85, 224405 (2012).

Ferromagnetism in ZrFe12-xAlx and HfFe12-xAlx (x=6.0, 6.5, 7.0)
Michael A. McGuire, Nirmal Ghimire and David J. Singh,,  Journal of Applied Physics 111, 093918 (2012).