Now showing items 1-14 of 14

    • Magnetic, Thermodynamic, and Electrical Transport Properties of the Noncentrosymmetric B20 Germanides MnGe and CoGe 

      Ditusa, J. F.; Zhang, S. B.; Yamaura, K.; Xiong, Y.; Prestigiacomo, J. C.; Fulfer, B. W.; Adams, P. W.; Brickson, M. I.; Browne, D. A.; Capan, C.; Fisk, Z.; Chan, Julia Y. (American Physical Society, 2014-10-03)
      We present magnetization, specific heat, resistivity, and Hall effect measurements on the cubic B20 phase of MnGe and CoGe and compare to measurements of isostructural FeGe and electronic-structure calculations. In MnGe, ...
    • Hydrostatic Pressure-Induced Modifications of Structural Transitions Lead to Large Enhancements of Magnetocaloric Effects in MnNiSi-Based Systems 

      Samanta, Tapas; Lepkowski, Daniel L.; Saleheen, Ahmad Us; Shankar, Alok; Prestigiacomo, Joseph; Dubenko, Igor; Quetz, Abdiel; Oswald, Iain W. H.; McCandless, Gregory T.; Chan, Julia Y.; Adams, Philip W.; Young, David P.; Ali, Naushad; Stadler, Shane (Amer Physical Soc, 2015-01-05)
      A remarkable decrease of the structural transition temperature of MnNiSi from 1200 to < 300 K by chemically alloying it with MnFeGe results in a coupling of the magnetic and structural transitions, leading to a large ...
    • Intermediate Valence to Heavy Fermion Through a Quantum Phase Transition in Yb₃(Rh₁₋xTx)₄ Ge₁₃ (T = Co, Ir) Single Crystals 

      Rai, Binod K.; Oswald, Iain W. H.; Chan, Julia Y.; Morosan, E. (Amer Physical Soc, 2016-01-04)
      Single crystals of Yb₃(Rh₁₋xTx)₄ Ge₁₃ (T = Co, Ir) have been grown using the self-flux method. Powder x-ray diffraction data on these compounds are consistent with the cubic structure with space group Pm3̅n. Intermediate-valence ...
    • The Role of Ceramic and Glass Science Research in Meeting Societal Challenges: Report from an NSF-Sponsored Workshop 

      Faber, Katherine T.; Asefa, Tewodros; Backhaus-Ricoult, Monika; Brow, Richard; Chan, Julia Y.; Dillon, Shen; Fahrenholtz, William G.; Finnis, Michael W.; Garay, Javier E.; Garcia, R. Edwin; Gogotsi, Yury; Haile, Sossina M.; Halloran, John; Hu, Juejun; Huang, Liping; Jacobsen, Steven D.; Lara-Curzio, Edgar; LeBeau, James; Lee, William E.; Levi, Carlos G.; Levin, Igor; Lewis, Jennifer A.; Lipkin, Don M.; Lu, Kathy; Luo, Jian; Maria, Jon-Paul; Martin, Lane W.; Martin, Steve; Messing, Gary; Navrotsky, Alexandra; Padture, Nitin P.; Randall, Clive; Rohrer, Gregory S.; Rosenflanz, Anatoly; Schaedler, Tobias A.; Schlom, Darrell G.; Sehirlioglu, Alp; Stevenson, Adam J.; Tani, Toshihiko; Tikare, Veena; Trolier-McKinstry, Susan; Wang, Hong; Yildiz, Bilge (Wiley, 2018-08-20)
      Under the sponsorship of the U.S. National Science Foundation, a workshop on emerging research opportunities in ceramic and glass science was held in September 2016. Reported here are proceedings of the workshop. The report ...
    • Fermi Surface of the Weyl Type-II Metallic Candidate WP₂ 

      Schönemann, R.; Aryal, N.; Zhou, Q.; Chiu, Y. -C; Chen, K. -W; Martin, T. J.; McCandless, G. T.; Chan, Julia Y.; Manousakis, E.; Balicas, L. (2018-09-12)
      Weyl type-II fermions are massless quasiparticles that obey the Weyl equation and which are predicted to occur at the boundary between electron and hole pockets in certain semimetals, i.e., the (W,Mo)(Te₁,P)₂ compounds. ...
    • The Proof Is in the Powder: Revealing Structural Peculiarities in the Yb₃Rh₄Sn₁₃ Structure Type 

      Oswald, Iain W. H.; Rai, Binod K.; McCandless, Gregory T.; Morosan, Emilia; Chan, Julia Y. (Royal Soc Chemistry, 2018-09-12)
      Compounds adopting the Yb₃Rh₄Sn₁₃ structure type have drawn attention because of the revelation of exotic states such as heavy fermion behavior, superconductivity, charge density wave, and quantum critical behavior. The ...
    • Observation of a Two-Dimensional Fermi Surface and Dirac Dispersion in YbMnSb₂ 

      Kealhofer, Robert; Jang, Sooyoung; Griffin, Sinead M.; John, Caolan; Benavides, Katherine A.; Doyle, Spencer; Helm, T.; Moll, Philip J. W.; Neaton, Jeffrey B.; Chan, Julia Y.; Denlinger, J. D.; Analytis, James G. (Amer Physical Soc, 2018-10-22)
      We present the crystal structure, electronic structure, and transport properties of the material YbMnSb₂, a candidate system for the investigation of Dirac physics in the presence of magnetic order. Our measurements reveal ...
    • The Role of Crystal Growth Conditions on the Magnetic Properties of Ln₂Fe₄₋ₓCoₓSb₅ (Ln = La and Ce) 

      Weiland, Ashley; Li, Sheng; Benavides, Katherine A.; Burnett, Joseph V.; Milam-Guerrero, J.; Neer, Abbey J.; McCandless, Gregory T.; Lv, Bing; Chan, Julia Y. (American Chemical Society, 2019-04-15)
      Single crystals of Ln₂Fe₄₋ₓCoₓSb_{5-y}Bi_y (Ln = La, Ce; 0 ≤ x ≤ 0.5; 0 ≤ y ≤ 0.2) were grown using Bi flux and self-flux methods. The compounds adopt the La₂Fe₄Sb₅ structure type with tetragonal space group I4/mmm. The ...
    • Law and Disorder: Special Stacking Units—Building the Intergrowth Ce₆ Co₅ Ge₁₆ 

      Felder, Justin B.; Weiland, Ashley; Hodovanets, H.; McCandless, George T.; Estrada, Tania G.; Martin, Thomas J.; Walker, Amy V.; Paglione, J.; Chan, Julia Y. (American Chemical Society, 2019-04-22)
      A new structure type of composition Ce₆ Co₅ Ge₁₆ was grown out of a molten Sn flux. Ce₆ Co₅ Ge₁₆ crystallizes in the orthorhombic space group Cmcm, with highly anisotropic lattice parameters of α = 4.3293(5) Å, b = 55.438(8) ...
    • Bulk Fermi Surface of The Weyl Type-II Semimetallic Candidate NbIrTe₄ 

      Schönemann, R.; Chiu, Y. -C; Zheng, W.; Quito, V. L.; Sur, S.; McCandless, Gregory T.; Chan, Julia Y.; Balicas, L. (American Physical Society, 2019-05-15)
      Recently, a new group of layered transition-metal tetra-chalcogenides was proposed via first-principles calculations to correspond to a new family of Weyl type-II semimetals with promising topological properties in the ...
    • Spin Density Wave Instability in a Ferromagnet 

      Wu, Yan; Ning, Zhenhua; Cao, Huibo; Cao, Guixin; Benavides, Katherine A.; Karna, S.; McCandless, Gregory T.; Jin, R.; Chan, Julia Y.; Shelton, W. A.; DiTusa, J. F.
      Due to its cooperative nature, magnetic ordering involves a complex interplay between spin, charge, and lattice degrees of freedom, which can lead to strong competition between magnetic states. Binary Fe₃Ga₄ is one such ...
    • Detailed Study of the Fermi Surfaces of the Type-II Dirac Semimetallic Candidates XTe₂ (X =Pd, Pt) 

      Zheng, W.; Schönemann, R.; Aryal, N.; Zhou, Q.; Rhodes, D.; Chiu, Y. -C; Chen, K. -W; Kampert, E.; Förster, T.; Martin, T. J.; McCandless, Gregory T.; Chan, Julia Y.; Manousakis, E.; Balicas, L.
      We present a detailed quantum oscillatory study on the Dirac type-II semimetallic candidates PdTe₂ and PtTe₂ via the temperature and the angular dependence of the de Haas-van Alphen and Shubnikov-de Haas effects. In ...
    • Fermi Surface, Possible Unconventional Fermions, and Unusually Robust Resistive Critical Fields in the Chiral-Structured Superconductor AuBe 

      Rebar, D. J.; Birnbaum, S. M.; Singleton, J.; Khan, M.; Ball, J. C.; Adams, P. W.; Chan, Julia Y.; Young, D. P.; Browne, D. A.; Ditusa, J. F.
      The noncentrosymmetric superconductor (NCS) AuBe is investigated using a variety of thermodynamic and resistive probes in magnetic fields of up to 65 T and temperatures down to 0.3 K. Despite the polycrystalline nature of ...
    • Ferromagnetic Ordering Along the Hard Axis in the Kondo Lattice YbIr₃Ge₇ 

      Rai, B. K.; Stavinoha, M.; Banda, J.; Hafner, D.; Benavides, Katherine A.; Sokolov, D. A.; Chan, Julia Y.; Brando, M.; Huang, C. -L; Morosan, E.
      Ferromagnetic Kondo lattice compounds are far less common than their antiferromagnetic analogs. In this Rapid Communication, we report the discovery of a ferromagnetic Kondo lattice compound, YbIr₃Ge₇. As in almost all ...