Publications
65. "The surprising thermal properties of CM carbonaceous chondrites" C. P. Opeil, D. T. Britt, R. J. Macke, G. J. Consolmagno, Meteoritics & Planetary Science 55, E1-E20 (2020). https://doi.org/10.1111/maps.13556
64. “Heat capacities of ordinary chondrite falls below 300 K” R. J. Macke, SJ, C. Opeil, SJ and G. J. Consolmagno, SJ, Meteoritics & Planetary Science 54, 2729–2743 (2019). https://doi/10.1111/maps.13385
63. "Experimental determination of phonon thermal conductivity and Lorenz ratio of single-crystal bismuth telluride" M. Yao, C. Opeil, S. Wilson and M. Zebarjadi, MRS Communications 7, 922-927 (2017). http://dx.doi.org/10.1557/mrc.2017.118
62. "Experimental determination of phonon thermal conductivity and Lorenz ratio of single crystal metals: Al, Cu, and Zn" M. Yao, M. Zebarjadi and C. P. Opeil, Journal of Applied Physics 122, 135111 (2017). http://dx.doi.org/10.1063/1.4997034
61. "Low temperature thermoelectric properties of p-type copper selenide with Ni, Te and Zn dopants" M. Yao, W. Liu, X. Chen, Zhensong Ren, S. Wilson, Zhifeng Ren, and C. Opeil, Journal of Alloys and Compounds 669, 718-721 (2017). http://dx.doi.org/10.1016/j.jallcom.2016.12.400
60. "Anomalous CDW ground state in Cu2Se: A wave-like fluctuation of the dc I-V curve near 50 K" Mengliang Yao, W. Liu, X. Chen, Zhensong Ren, S. Wilson, Zhifeng Ren, and C. Opeil, Journal of Materiomics 3, 150-157 (2017). http://dx.doi.org/10.1016/j.jmat.2016.12.003
59. "Seven Billion and Counting: Paradise Crowded" C. Opeil, Integritas 8.3, 1-16 (Fall, 2016). doi: 10.6017/integritas.v8i3p1
58. “Enhancement of Thermoelectric Performance of n-Type PbSe by Cr Doping with Optimized Carrier Concentration” Q. Zhang, E. K. Chere, K. McEnaney, M. Yao, F. Cao, Y. Ni, S. Chen, C. Opeil, G. Chen, and Z. Ren, Advanced Energy Materials 5, 1401977 (2015). http://dx.doi.org/10.1002/aenm.201401977
57. “n-type thermoelectric material Mg2Sn0.75Ge0.25 for high power generation” W. Liu, H. S. Kim, S. Chen, Q. Jie, B. Lv, M. Yao, Zhensong Ren, C. P. Opeil, S. Wilson, C.-W. Chu, and Zhifeng Ren, Proceedings of the National Academy of Science, USA 112 (11) 3269–3274 (2015). http://dx.doi.org/10.1073/pnas.1424388112
56. “Influence of electron doping on the ground state of (Sr1−xLax)2IrO4” X. Chen, T. Hogan, D. Walkup, W. Zhou, M. Pokharel, M. Yao, W. Tian, T. Z. Ward, Y. Zhao, D. Parshall, C. Opeil, J. W. Lynn, V. Madhavan, and S. D. Wilson, Physical Review B 92, 075125 (2015). http://dx.doi.org/10.1103/PhysRevB.92.075125
55. “Enhancement of thermoelectric performance in n-type PbTe1−ySey by doping Cr and tuning Te:Se ratio” E. K. Chere, Q. Zhang, K. McEnaney, M. Yao, F. Cao, J. Sun, S. Chen, C. Opeil, G. Chen, Z. Ren, Nano Energy, Vol. 13, April 2015, 113-122. http://dx.doi.org/10.1016/j.nanoen.2015.02.026
54. “Nanostructured YbAgCu4 for Potentially Cryogenic Thermoelectric Cooling” M. Koirala, H. Wang, M. Pokharel, Y. Lan, C. Guo, C. Opeil, and Z. Ren, Nano Letters 14, 5016-5020 (2014). http://dx.doi.org/10.1021/nl501436w
53. “Thermoelectric properties of CeAl3 prepared by hot-press method” M. Pokharel, T. Dahal, Zhensong Ren, P. Czajka, S. Wilson, Zhifeng Ren, C. Opeil, Energy Conversion Management 87, 584-588 (2014). http://dx.doi.org/10.1016/j.enconman.2014.07.050
52. “Induced electronic anisotropy in bismuth thin films” A. D. Liao, M. Yao, F. Katmis, M. Li, S. Tang, J. S. Moodera, C. Opeil, and M. S. Dresselhaus, Applied Physics Letters 105, 063114 (2014). http://dx.doi.org/10.1063/1.4893140
51. “Bi2S3 nanonetwork as precursor for improved thermoelectric performance” W. Liu, C. Fei Guo, M. Yao, Y. Lan, H. Zhang, Q. Zhang, S. Chen, C. P. Opeil, Z. Ren, Nano Energy, Vol. 4, 113-122 March 2014. http://dx.doi.org/10.1016/j.nanoen.2013.12.015
50. “Thermoelectric properties of nanocomposite heavy fermion CeCu6” M. Pokharel, T. Dahal, Z. Ren, C. Opeil, Journal of Alloys and Compounds 609, 228-232 (2014). http://dx.doi.org/10.1016/j.jallcom.2014.04.139
49. “Enhanced Thermoelectric Performance of Te-doped FeSb2 Nanocomposite” M. Pokharel, H. Z. Zhao, M. Koirala, Z. F. Ren, and C. Opeil, Journal of Low Temperature Physics 176, 122-130 (2014). http://dx.doi.org/10.1007/s10909-014-1148-y
48. “Magnetic Properties of Hot-Pressed FeSb22” M. Pokharel, H. Zhao, K. A. Modic, Z. Ren, and C. Opeil, IEEE Transactions on Magnetics, Vol. 50(5) 2400304, May 2014. http://dx.doi.org/10.1109/TMAG.2013.2292607
47. "Carrier localization and electronic phase separation in a doped spin-orbit driven Mott phase in Sr3(Ir1-xRux)2O7" C. Dhital, T. Hogan, W.-W. Zhou, X. Chen, Zhensong Ren, M. Pokharel, Y. Okada, M. Heine, W. Tian, Z. Yamani, J. Helton, J. Lynn, C. Opeil, Z. Wang, V. Madhavan, and S. Wilson, Nature Communications 5, Article No. 3377, 25 Feb 2014. http://dx.doi.org/10.1038/ncomms4377
46. “Increased thermoelectric performance by Cl doping in nanostructured AgPb18SbSe20−xClx”,Q. Zhang, Y. Lan, S. Yang, F. Cao, M. Yao, C. Opeil, D. Broido, G. Chen, Z. Ren, Nano Energy, Vol. 2 (6), November 2013, 1121-1127. http://dx.doi.org/10.1016/j.nanoen.2013.09.009
45. “Grain boundary Kapitza resistance analysis of nanostructured FeSb2” M. Pokharel, H. Zhao,Z. Ren, and C. Opeil, International Journal of Thermal Sciences 71, 32-35 (2013). http://dx.doi.org/10.1016/j.ijthermalsci.2013.03.009
44. “Effect of Hf Concentration on Thermoelectric Properties of Nanostructured N-Type Half-Heusler Materials HfxZr1–xNiSn0.99Sb0.01” S. Chen, K. C. Lukas, W. Liu, C. P. Opeil, Z. Ren, Advanced Energy Materials 3, 1210-1214 (2013). http://dx.doi.org/10.1002/aenm.201300336
43. “Studies on the Bi2Te3–Bi2Se3–Bi2S3 system for mid-temperature thermoelectric energy conversion” W. Liu, K. C. Lukas, K. McEnaney, S. Lee, Q. Zhang, C. P. Opeil, G. Chen and Z. Ren, Energy & Environmental Science 6, 552-560 (2013). http://dx.doi.org/10.1039/C2EE23549H
42. “High thermoelectric performance by resonant dopant indium in nanostructured SnTe” Q. Zhang, Bolin Liao, Y. Lan, K. Lukas, W. Liu, K. Esfarjani, C. Opeil, D. Broido, G. Chen, Z. Ren, Proceedings of the National Academy of Science USA, 110 (33) 13261–13266 (2013). http://dx.doi.org/10.1073/pnas.1305735110
41. “Thermoelectric Property Enhancement by Cu nanoparticles in Nanostructured FeSb2” M. Koirala, H. Zhao, M. Pokharel, S. Chen, T. Dahal, C. Opeil, G. Chen, and Z. Ren, Applied Physics Letters 102, 213111 (2013). http://dx.doi.org/10.1063/1.4808094
40. “Phonon drag effect in nanocomposite FeSb2” M. Pokharel, H. Zhao, K. Lukas, Z. Ren, C. Opeil, MRS Communications 3, 31-36 (2013). http://dx.doi.org/10.1557/mrc.2013.7
39. “Study of the Thermoelectric Properties of Lead Selenide Doped with Boron, Gallium, Indium, or Thallium” Q. Zhang, F. Cao, K. Lukas, W. Liu, K. Esfarjani, C. Opeil, D. Broido, D. Parker, D. J. Singh, G. Chen, and Z. Ren, Journal of the American Chemical Society 134 (42) 17731-17738, October 24, 2012. http://pubs.acs.org/doi/abs/10.1021/ja307910u
38. “Role of phonon dispersion in studying phonon mean free paths in skutterudites” M. Zebarjadi, J. Yang, K. Lukas, B. Kozinsky, B. Yu, M. S. Dresselhaus, C. Opeil, Z. Ren, G. Chen, Journal Applied Physics 112, 044305 (2012). http://dx.doi.org/10.1063/1.4747911
37. “Thermal Stability of Thermoelectric Materials via In Situ Resistivity Measurements” K. C. Lukas, W. S. Liu, Q. Jie, Z. F. Ren, C. P. Opeil, Review of Scientific Instruments 83, 115114 (2012). http://dx.doi.org/10.1063/1.4767904
36. “Figure-of-Merit Enhancement in Nanostructured FeSb2-xAgx with Nanoinclusions Ag1-ySby” H. Zhao, M. Pokharel, S. Chen, B. Liao, K. Lukas, H. Wang, C. Opeil, G. Chen, Z. Ren, Nanotechnology 23, 505402 (2012). http://dx.doi.org/10.1088/0957-4484/23/50/505402
35. “Enhancement of Thermoelectric Properties by Modulation-Doping in Silicon Germanium Alloy Nanocomposites“ B. Yu, M. Zebarjadi, Hu. Wang, K. Lukas, He. Wang, D. Wang, C. Opeil, M. Dresselhaus, G. Chen, Z.F. Ren, Nano Letters 12, 2077−2082 (2012). http://dx.doi.org/10.1021/nl3003045
34. “Cerium Doped Bismuth Antimony” K. C. Lukas, H. Zhao, R. L. Stillwell, Z. F. Ren, C. P. Opeil, MRS Proceedings, 1456, mrss12-1456-jj01-04 doi:10.1557/opl.2012.1368. http://dx.doi.org/10.1557/opl.2012.1368
33. “Heavy doping and band engineering by potassium to improve the thermoelectric figure of merit in p-type PbTe, PbSe, and PbTe(1-y)Se(y)” Q. Zhang, F. Cao, W. Liu, K. Lukas, B. Yu, S. Chen, C. Opeil, D. Broido, G. Chen, Z. Ren, Journal of the American Chemical Society 134, 10031, May 24, 2012. http://dx.doi.org/10.1021/ja301245b
32. “Spin ordering and electronic texture in the bilayer iridate Sr3Ir2O7” C. Dhital, S. Khadka, Z. Yamani, C. de la Cruz, T. C. Hogan, S. M. Disseler, M. Pokharel, K. C. Lukas, W. Tian, C. P. Opeil, Z. Wang, and S. D. Wilson, Physical Review B 86 100401(R), 2012. http://dx.doi.org/10.1103/PhysRevB.86.100401
31. “Transport properties of Ni, Co, Fe, Mn doped Cu0.01Bi2Te2.7Se0.3 for thermoelectric device applications” K. C. Lukas, W. S. Liu, Z. F. Ren, and C. P. Opeil, Journal of Applied Physics 112, 054509 (2012). http://dx.doi.org/10.1063/1.4749806
30. "Enhanced Thermoelectric Properties of FeSbx Nanocomposites Through Stoichiometric Adjustment" M. Pokharel, H. Zhao, K. C. Lukas, Z. Ren and C. P. Opeil, MRS Proceedings 1456 (2012). mrss12-1456-jj02-07 doi:10.1557/opl.2012.1505. http://dx.doi.org/10.1557/opl.2012.1505
29. "Thermoelectric Properties of Ho Doped Bi0.88Sb0.12" K. C. Lukas, W. S. Liu, G. Joshi, Z. F. Ren, C. P. Opeil, Journal of Material Science, 47 (15) 5729-5734 (2012).,http://dx.doi.org/10.1007/s10853-012-6463-6
28. "Experimental determination of the Lorenz number in Cu 0.01Bi2Te2.7 Se0.3 and Bi0.88Sb0.12" K. C. Lukas, W. S. Liu, G. Joshi, M. Zebarjadi, M. S. Dresselhaus, Z. F. Ren, G. Chen, and C. P. Opeil, Physical Review B 85, 205410 (2012). http://dx.doi.org/10.1103/PhysRevB.85.205410
27. "Stony meteorite thermal properties and their relationship to meteorite chemical and physical states" C. P. Opeil S.J., G.J. Consolmagno S.J., D. J. Safarik, and D.T. Britt, Meteoritics and Planetary Sciences 47 (3) 319-329 (2012). http://dx.doi.org/10.1111/j.1945-5100.2012.01331.x
26. "Suppression of grain growth by an additive in nanostructured p-type bismuth antimony tellurides" Qian Zhang, Qinyong Zhang, S. Chen, W. Liu, K. Lukas, X. Yan, H. Wang, D. Wang, C. P. Opeil, G. Chen and Z. Ren, Nano Energy 1, 183-189 (2012). http://dx.doi.org/10.1016/j.nanoen.2011.10.006
25. "Dramatic thermal conductivity reduction by nanostructures for large increase in thermoelectric figure-of-merit of FeSb2" H. Zhao, M. Pokharel, G. Zhu, S. Chen, K. Lukas, Q. Jie, C. Opeil, G. Chen, and Z. Ren, Applied Physics Letters 99, 163101 (2011). http://dx.doi.org/10.1063/1.3651757
24. "Neutron scattering study of magnetic phase separation in phase separation in nanocrystalline La5/8Ca3/8MnO3" C. Dhital, C. Dela Cruz, C. Opeil, A. Treat, K. F. Wang, J. Liu, Z. Ren, and S. D. Wilson, Physical Review B 84, 144401 (2011). http://dx.doi.org/10.1103/PhysRevB.84.144401
23. "Tin telluride: A weakly co-elastic metal" E. K. H. Salje, D. J. Safarik, K. A. Modic, J. E. Gubernatis, J. C. Cooley, R. D. Taylor, B. Mihaila, A. Saxena, T. Lookman, J. L. Smith, R. A. Fisher, M. Pasternak, C. P. Opeil, T. Siegrist, P. B. Littlewood, and J. C. Lashley, Physical Review B 82, 184112 (2010). http://dx.doi.org/10.1103/PhysRevB.82.184112
22. "Band structure of SnTe studied by photoemission spectroscopy" P. B. Littlewood, B. Mihaila, R. K. Schulze, D. J. Safarik, J. E. Gubernatis, A. Bostwick, E. Rotenberg, C. P. Opeil, T. Durakiewicz, and J. L. Smith, J. C. Lashley, Physical Review Letters 105, 086404 (2010). http://dx.doi.org/10.1103/PhysRevLett.105.086404
21. "The thermal conductivity of meteorites: New measurements and analysis" C. P. Opeil, G. J. Consolmagno, D. T. Britt, Icarus 208, 449-454 (2010). http:/dx.doi.org/10.1016/j.icarus.2010.01.021
20. “Structural Phase Transition in AuZn Alloys” B. Winn, S. M. Shapiro, J. C. Lashley, C. Opeil, W. Ratcliff, Journal of Physics: Conference Series 251, 012027 (2010). http://dx.doi.org/10.1088/1742-6596/251/1/012027
19. “Influence of magnetic fields on structural martensite transitions” X.-D. Yang, P. S. Riseborough, K. A. Modic, R. A. Fisher, C. P. Opeil, T. R. Finlayson, J. C. Cooley, J. L. Smith, P. A. Goddard, A.V. Silhanek and J. C. Lashley, Philosophical Magazine 89, 2083 (2009). http://dx.doi.org/10.1080/14786430902865518
18. “Thermal expansion and magnetostriction of a nearly saturated 3He-4He mixture” G. M. Schmiedeshoff, A.W. Lounsbury, S. W. Tozer, E. C. Palm, S. T. Hannahs, T. P. Murphy, J. -H. Park, C. P. Opeil, and K. S. Bedell, Philosophical Magazine 89, 2071-2078 (2009). http://dx.doi.org/10.1080/14786430903019057
17. "Angle-dependent magnetoresistance near the premartensitic phase of Ni2MnGa” C. P. Opeil, J. C. Lashley, J. L. Smith, Journal of Physics: Conference Series 150, 042109 (2009). http://dx.doi.org/10.1088/1742-6596/150/4/042109
16. "Observation of a continuous phase transition in a shape-memory alloy" J. C. Lashley, S. M. Shapiro, B. L. Winn, C. P. Opeil, M. E. Manley, A. Alatas, W. Ratcliff, T. Park, R. A. Fisher, B. Mihaila, P. Riseborough, E. K. H. Salje, and J. L. Smith, Physical Review Letters 101, 135703 (2008). http://dx.doi.org/10.1103/PhysRevLett.101.135703
15. "Combined experimental and theoretical investigation of the premartensitic transition in Ni2MnGa" C. P. Opeil, B. Mihaila, R. K. Schulze, L. Manosa, A. Planes, W. L. Hults, R. A. Fisher, P. S. Riseborough P. B. Littlewood, J. L. Smith, and J. C. Lashley, Physical Review Letters 100, 165703 (2008). http://dx.doi.org/10.1103/PhysRevLett.100.165703
14. Reply to Comment on "Pinning frequencies of the collective modes in -uranium" J. C. Lashley, B. Mihaila, C. P. Opeil, F. R. Drymiotis, and J. L. Smith, Physical Review Letters 98, 249702 (2007). http://dx.doi.org/10.1103/PhysRevLett.98.249702
13. "Electronic instabilities in shape-memory alloys: Thermodynamic and electronic structure studies of martensitic transition" J. C . Lashley, R. K. Schulze, B. Mihaila, W. L. Hults, J. C. Cooley, J. L. Smith, P. S. Riseborough, C. P. Opeil, R. A. Fisher, O. Svitelskiy, A. Suslov, T. R. Finlayson, Physical Review B 75, 205119 (2007). http://dx.doi.org/10.1103/PhysRevB.75.205119
12. "Heat capacity in magnetic and electric fields near the ferroelectric transition in triglycine sulfate" J. C. Lashley, M. F. Hundley, B. Mihaila, J. L. Smith, C. P. Opeil, T. R. Finlayson, R. A. Fisher and N. Hur, Applied Physics Letters 90, 052910 (2007). http://dx.doi.org/10.1063/1.2435333
11. "Angle-resolved photoemission and first-principles electronic structure of alpha-U(001)" C. P. Opeil, R. K. Schulze, H. M. Volz, J. C. Lashley, M. E. Manley, W. L. Hults,R. Hanrahan, Jr., J. L. Smith, B. Mihaila, K. B. Blagoev, R. C. Albers, P. B. Littlewood, Physical Review B 75, 045120 (2007). http://dx.doi.org/10.1103/PhysRevB.75.045120
10. "Tricritical phenomenon at the gamma beta transition in Ce0.9-xLaxTh 0.1 alloys" J. C. Lashley, A. C. Lawson, J. C. Cooley, B. Mihaila, C. P. Opeil, L. Pham, W. L. Hults, J. L. Smith, G. M. Schmiedeshoff, F. R. Drymiotis, G. Chapline, S. Basu, and P. S. Riseborough, Physical Review Letters 97, 235701 (2006). http://dx.doi.org/10.1103/PhysRevLett.97.235701
9. "Photoelectric effect in Uranium" C. P. Opeil, R. C. Albers, K. B. Blagoev, M. Gulácsi, J. C. Lashley, P. B. Littlewood, M. E. Manley, B. Mihaila, P. S. Riseborough, R. K. Schulze, D. J. Thoma, H. M. Volz and J. L. Smith, Journal of the Physical Society of Japan, Vol. 75, 56-57 (2006). http://dx.doi.org/10.1143/JPSJS.75S.56
8. "Valence-band UPS, 6p core-level XPS, and LEED of a uranium (001) single crystal" C. P. Opeil, R. K. Schulze, M. E. Manley, J. C. Lashley, W. L. Hults, R. J. Hanrahan, Jr., J. L. Smith, B. Mihaila, K. B. Blagoev, R. C. Albers, P. B. Littlewood, Physical Review B 73, 165109 (2006). http://dx.doi.org/10.1103/PhysRevB.73.165109
7. "Pinning frequencies of the collective modes in α-uranium" B. Mihaila, C. P. Opeil, F. R. Drymiotis, J. L. Smith, J. C. Cooley, A. Migliori, C. Mielke, T. Lookman, A. Saxena, A. R. Bishop, K. B. Blagoev, D. J. Thoma, P. Goddard, and J. C. Lashley, B. E. Lang, J. Boerio-Goates, B. F. Woodfield, and G. M. Schmiedeshoff, Physical Review Letters 96, 076401 (2006). http://dx.doi.org/10.1103/PhysRevLett.96.076401
6. "Low-dimensional phonon specific heat of titanium dioxide nanotubes" C. Dames, B. Poudel, W. Z. Wang, J. Y. Huang, Z. F. Ren, Y. Sun, J. I. Oh, C. P. Opeil, M. J. Naughton and G. Chen, Applied Physics Letters 87, 031901 (2005). http://dx.doi.org/10.1063/1.1990269
5. "Inhomogeneous magnetic order in Th doped UPt3 detected by mu-SR" A. de Visser, M. J. Graf, C. P. Opeil, J. C. Cooley, J. L. Smith, A. Amato, C. Baines, F. Gygax, A. Schenck, Physica B 359-361, 1063-1065 (2005). http://dx.doi.org/10.1016/j.physb.2005.01.287
4. "Magnetic anisotropy and de Haas-van Alphen oscillations in a Bi microwire array studied via cantilever magnetometry at low temperatures" M. J. Graf, C. P. Opeil, T. Huber, Journal of Low Temperature Physics 134, No. 5/6, 1055-1068, March 2004. http://dx.doi.org/10.1023/B:JOLT.0000016729.99257.25
3. "Crossover from anomalous to conventional antiferromagnetism in Pd-doped UPt3 studied via cantilever magnetometry" C. P. Opeil, A. de Visser, M. J. Naughton, and M. J. Graf, Journal of Magnetism and Magnetic Materials 272-276, 244-245 (2004). http://dx.doi.org/10.1016/j.jmmm.2003.11.100
2. "Onset of antiferromagnetism in UPt3 via Th-substitution: studied by muon spin spectroscopy" M. J. Graf, A. de Visser, C. P. Opeil, J. C. Cooley, J. L. Smith, A. Amato, C. Baines, F. Gygax, and A. Schenck, Physical Review B 68, 224421 (2003). http://dx.doi.org/10.1103/PhysRevB.68.224421
1. "Evidence for the existence of a magnetic quantum critical point in U(Pt1-xPdx)3" C. P. Opeil and M. J. Graf, Physica B 319, 246-250 (2002). http://dx.doi.org/10.1016/S0921-4526(02)01125-0