Gregory MacDougall

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Research Output

  • 45 Article
  • 3 Conference article
  • 1 Review article
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2019

Deviation from the dipole-ice model in the spinel spin-ice candidate MgEr2Se4

Reig-I-Plessis, D., Geldern, S. V., Aczel, A. A., Kochkov, D., Clark, B. K. & Macdougall, G. J., Apr 26 2019, In : Physical Review B. 99, 13, 134438.

Research output: Contribution to journalArticle

Neutron scattering measurement of crystalline-electric fields in magnesium rare-earth selenide spinels

Reig-I-Plessis, D., Cote, A., Van Geldern, S., Mayrhofer, R. D., Aczel, A. A. & Macdougall, G. J., Nov 12 2019, In : Physical Review Materials. 3, 11, 114408.

Research output: Contribution to journalArticle

Revisiting the Kitaev material candidacy of Ir4+ double perovskite iridates

Aczel, A. A., Clancy, J. P., Chen, Q., Zhou, H. D., Reig-I-Plessis, D., Macdougall, G. J., Ruff, J. P. C., Upton, M. H., Islam, Z., Williams, T. J., Calder, S. & Yan, J. Q., Apr 11 2019, In : Physical Review B. 99, 13, 134417.

Research output: Contribution to journalArticle

2018

Evolution of magnetic and orbital properties in the magnetically diluted A -site spinel Cu1-xZnxRh2 O4

Zakrzewski, A. V., Gangopadhyay, S., Macdougall, G. J., Aczel, A. A., Calder, S. & Williams, T. J., Jun 11 2018, In : Physical Review B. 97, 21, 214411.

Research output: Contribution to journalArticle

Finite momentum Cooper pairing in three-dimensional topological insulator Josephson junctions

Chen, A. Q., Park, M. J., Gill, S. T., Xiao, Y., Reig-i-Plessis, D., MacDougall, G. J., Gilbert, M. J. & Mason, N., Dec 1 2018, In : Nature communications. 9, 1, 3478.

Research output: Contribution to journalArticle

Real-space magnetic imaging of the multiferroic spinels MnV2 O4 and Mn3 O4

Wolin, B., Wang, X., Naibert, T., Gleason, S. L., Macdougall, G. J., Zhou, H. D., Cooper, S. L. & Budakian, R., Jun 22 2018, In : Physical Review Materials. 2, 6, 064407.

Research output: Contribution to journalArticle

Spin canting and orbital order in spinel vanadate thin films

Thompson, C. J., Reig-I-Plessis, D., Kish, L., Aczel, A. A., Zhang, B., Karapetrova, E., Macdougall, G. J. & Beekman, C., Oct 25 2018, In : Physical Review Materials. 2, 10, 104411.

Research output: Contribution to journalArticle

2017

Signatures of exciton condensation in a transition metal dichalcogenide

Kogar, A., Rak, M. S., Vig, S., Husain, A. A., Flicker, F., Joe, Y. I., Venema, L., MacDougall, G. J., Chiang, T. C., Fradkin, E., Van Wezel, J. & Abbamonte, P., Dec 8 2017, In : Science. 358, 6368, p. 1314-1317 4 p.

Research output: Contribution to journalArticle

2016

A mechanical rotator for neutron scattering measurements

Thaler, A., Northen, E., Aczel, A. A. & MacDougall, G. J., Dec 1 2016, In : Review of Scientific Instruments. 87, 12, 125109.

Research output: Contribution to journalArticle

Effects of magnetic field and twin domains on magnetostructural phase mixture in Mn3 O4: Raman scattering studies of untwinned crystals

Byrum, T., Gleason, S. L., Thaler, A., Macdougall, G. J. & Cooper, S. L., May 16 2016, In : Physical Review B. 93, 18, 184418.

Research output: Contribution to journalArticle

Revisiting the ground state of CoAl2 O4: Comparison to the conventional antiferromagnet MnAl2 O4

Macdougall, G. J., Aczel, A. A., Su, Y., Schweika, W., Faulhaber, E., Schneidewind, A., Christianson, A. D., Zarestky, J. L., Zhou, H. D., Mandrus, D. & Nagler, S. E., 2016, In : Physical Review B. 94, 18, 184422.

Research output: Contribution to journalArticle

Structural transition and orbital glass physics in near-itinerant CoV2 O4

Reig-I-Plessis, D., Casavant, D., Garlea, V. O., Aczel, A. A., Feygenson, M., Neuefeind, J., Zhou, H. D., Nagler, S. E. & Macdougall, G. J., Jan 25 2016, In : Physical Review B. 93, 1, 014437.

Research output: Contribution to journalArticle

2015

Influence of Ti doping on the incommensurate charge density wave in 1T-TaS2

Chen, X. M., Miller, A. J., Nugroho, C., De La Peña, G. A., Joe, Y. I., Kogar, A., Brock, J. D., Geck, J., Macdougall, G. J., Cooper, S. L., Fradkin, E., Van Harlingen, D. J. & Abbamonte, P., Jun 8 2015, In : Physical Review B - Condensed Matter and Materials Physics. 91, 24, 245113.

Research output: Contribution to journalArticle

Surface Collective Modes in the Topological Insulators Bi2Se3 and Bi0.5Sb1.5Te3-xSex

Kogar, A., Vig, S., Thaler, A., Wong, M. H., Xiao, Y., Reig-I-Plessis, D., Cho, G. Y., Valla, T., Pan, Z., Schneeloch, J., Zhong, R., Gu, G. D., Hughes, T. L., Macdougall, G. J., Chiang, T. C. & Abbamonte, P., Dec 15 2015, In : Physical review letters. 115, 25, 257402.

Research output: Contribution to journalArticle

2014

A complete strain-temperature phase diagram for BiFeO3 films on SrTiO3 and LaAlO3 (0 0 1) substrates

Siemons, W., Beekman, C., MacDougall, G. J., Zarestky, J. L., Nagler, S. E. & Christen, H. M., Jan 22 2014, In : Journal of Physics D: Applied Physics. 47, 3, 034011.

Research output: Contribution to journalArticle

Emergence of charge density wave domain walls above the superconducting dome in 1T-TiSe 2

Joe, Y. I., Chen, X. M., Ghaemi, P., Finkelstein, K. D., De La Peña, G. A., Gan, Y., Lee, J. C. T., Yuan, S., Geck, J., MacDougall, G. J., Chiang, T. C., Cooper, S. L., Fradkin, E. & Abbamonte, P., Jun 2014, In : Nature Physics. 10, 6, p. 421-425 5 p.

Research output: Contribution to journalArticle

Magnons and a two-component spin gap in FeV2 O4

Macdougall, G. J., Brodsky, I., Aczel, A. A., Garlea, V. O., Granroth, G. E., Christianson, A. D., Hong, T., Zhou, H. D. & Nagler, S. E., Jun 9 2014, In : Physical Review B - Condensed Matter and Materials Physics. 89, 22, 224404.

Research output: Contribution to journalArticle

Magnon spectra and strong spin-lattice coupling in magnetically frustrated MnB2 O4 (B=Mn,V): Inelastic light-scattering studies

Gleason, S. L., Byrum, T., Gim, Y., Thaler, A., Abbamonte, P., Macdougall, G. J., Martin, L. W., Zhou, H. D. & Cooper, S. L., Apr 3 2014, In : Physical Review B - Condensed Matter and Materials Physics. 89, 13, 134402.

Research output: Contribution to journalArticle

2012

Antiferromagnetic transitions in tetragonal-like BiFeO 3

MacDougall, G. J., Christen, H. M., Siemons, W., Biegalski, M. D., Zarestky, J. L., Liang, S., Dagotto, E. & Nagler, S. E., Mar 20 2012, In : Physical Review B - Condensed Matter and Materials Physics. 85, 10, 100406.

Research output: Contribution to journalArticle

Magnetic order and ice rules in the multiferroic spinel FeV 2O 4

MacDougall, G. J., Garlea, V. O., Aczel, A. A., Zhou, H. D. & Nagler, S. E., Aug 30 2012, In : Physical Review B - Condensed Matter and Materials Physics. 86, 6, 060414.

Research output: Contribution to journalArticle

New magnetic phase diagram of (Sr,Ca)2 RuO4

Carlo, J. P., Goko, T., Gat-Malureanu, I. M., Russo, P. L., Savici, A. T., Aczel, A. A., MacDougall, G. J., Rodriguez, J. A., Williams, T. J., Luke, G. M., Wiebe, C. R., Yoshida, Y., Nakatsuji, S., Maeno, Y., Taniguchi, T. & Uemura, Y. J., Apr 2012, In : Nature Materials. 11, 4, p. 323-328 6 p.

Research output: Contribution to journalArticle

Quantum oscillations of nitrogen atoms in uranium nitride

Aczel, A. A., Granroth, G. E., MacDougall, G. J., Buyers, W. J. L., Abernathy, D. L., Samolyuk, G. D., Stocks, G. M. & Nagler, S. E., Nov 26 2012, In : Nature communications. 3, 1124.

Research output: Contribution to journalArticle

Strain dependence of transition temperatures and structural symmetry of BiFeO3 within the tetragonal-like structure

Siemons, W., MacDougall, G. J., Aczel, A. A., Zarestky, J. L., Biegalski, M. D., Liang, S., Dagotto, E., Nagler, S. E. & Christen, H. M., Nov 19 2012, In : Applied Physics Letters. 101, 21, 212901.

Research output: Contribution to journalArticle

2011

Absence of static magnetic order in lightly-doped Ti1-xSc xOCl down to 1.7 K

Aczel, A. A., MacDougall, G. J., Ning, F. L., Rodriguez, J. A., Saha, S. R., Chou, F. C., Imai, T. & Luke, G. M., Apr 11 2011, In : Physical Review B - Condensed Matter and Materials Physics. 83, 13, 134411.

Research output: Contribution to journalArticle

Kinetically inhibited order in a diamond-lattice antiferromagnet

MacDougall, G. J., Gout, D., Zarestky, J. L., Ehlers, G., Podlesnyak, A., McGuire, M. A., Mandrus, D. & Nagler, S. E., Oct 20 2011, In : Proceedings of the National Academy of Sciences of the United States of America. 108, 38, p. 15693-15698 6 p.

Research output: Contribution to journalArticle

2010

Evolution of spin excitations into the superconducting state in FeTe 1-x Se x

Lumsden, M. D., Christianson, A. D., Goremychkin, E. A., Nagler, S. E., Mook, H. A., Stone, M. B., Abernathy, D. L., Guidi, T., MacDougall, G. J., De La Cruz, C., Sefat, A. S., McGuire, M. A., Sales, B. C. & Mandrus, D., Mar 2010, In : Nature Physics. 6, 3, p. 182-186 5 p.

Research output: Contribution to journalArticle

Magnetic properties of the geometrically frustrated S= 1 2 antiferromagnets, La2 LiMoO6 and Ba2 YMoO 6, with the B-site ordered double perovskite structure: Evidence for a collective spin-singlet ground state

Aharen, T., Greedan, J. E., Bridges, C. A., Aczel, A. A., Rodriguez, J., MacDougall, G., Luke, G. M., Imai, T., Michaelis, V. K., Kroeker, S., Zhou, H., Wiebe, C. R. & Cranswick, L. M. D., Jun 4 2010, In : Physical Review B - Condensed Matter and Materials Physics. 81, 22, 224409.

Research output: Contribution to journalArticle

Muon spin rotation measurements of heterogeneous field response in overdoped La2-x Srx CuO4

MacDougall, G. J., Savici, A. T., Aczel, A. A., Birgeneau, R. J., Kim, H., Kim, S. J., Ito, T., Rodriguez, J. A., Russo, P. L., Uemura, Y. J., Wakimoto, S., Wiebe, C. R. & Luke, G. M., Jan 11 2010, In : Physical Review B - Condensed Matter and Materials Physics. 81, 1, 014508.

Research output: Contribution to journalArticle

Potassium tantalate substrates for neutron experiments on antiferromagnetic perovskite films

Christen, H. M., MacDougall, G. J., Kim, H. S., Kim, D. H., Boatner, L. A., Bennett, C. J. C., Zarestky, J. L. & Nagler, S. E., Jan 1 2010, In : Journal of Physics: Conference Series. 251, 1, 012021.

Research output: Contribution to journalArticle

Structure and magnetic properties of the S=1 geometrically frustrated double perovskites La2LiReO6 and Ba2YReO 6

Aharen, T., Greedan, J. E., Bridges, C. A., Aczel, A. A., Rodriguez, J., MacDougall, G., Luke, G. M., Michaelis, V. K., Kroeker, S., Wiebe, C. R., Zhou, H. & Cranswick, L. M. D., Feb 26 2010, In : Physical Review B - Condensed Matter and Materials Physics. 81, 6, 064436.

Research output: Contribution to journalArticle

Study of the ground state properties of LiHoxY1-xF4 using muon spin relaxation

Rodriguez, J., Aczel, A. A., Carlo, J. P., Dunsiger, S. R., MacDougall, G. J., Russo, P. L., Savici, A. T., Uemura, Y. J., Wiebe, C. R. & Luke, G. M., Sep 3 2010, In : Physical review letters. 105, 10, 107203.

Research output: Contribution to journalArticle

2009

Itinerant spin excitations near the hidden order transition in URu 2Si2

Janik, J. A., Zhou, H. D., Jo, Y. J., Balicas, L., MacDougall, G. J., Luke, G. M., Garrett, J. D., McClellan, K. J., Bauer, E. D., Sarrao, J. L., Qiu, Y., Copley, J. R. D., Yamani, Z., Buyers, W. J. L. & Wiebe, C. R., May 11 2009, In : Journal of Physics Condensed Matter. 21, 19, 192202.

Research output: Contribution to journalArticle

Magnetism and superconductivity in heavy fermion superconductor CeCo (In0.97 Cd0.03)5

Ohishi, K., Heffner, R. H., Spehling, J., MacDougall, G. J., Ito, T. U., Higemoto, W., Amato, A., Andreica, D., Nieuwenhuys, G., Klauss, H. H., Luke, G. M., Thompson, J. D., Bianchi, A. D. & Fisk, Z., Apr 15 2009, In : Physica B: Condensed Matter. 404, 5-7, p. 754-756 3 p.

Research output: Contribution to journalArticle

Muon spin relaxation studies of the frustrated quasi-two-dimensional square-lattice spin system Cu (Cl,Br) la (Nb,Ta) 2 O7: Evolution from spin-gap to antiferromagnetic state

Uemura, Y. J., Aczel, A. A., Ajiro, Y., Carlo, J. P., Goko, T., Goldfeld, D. A., Kitada, A., Luke, G. M., MacDougall, G. J., Mihailescu, I. G., Rodriguez, J. A., Russo, P. L., Tsujimoto, Y., Wiebe, C. R., Williams, T. J., Yamamoto, T., Yoshimura, K. & Kageyama, H., Nov 13 2009, In : Physical Review B - Condensed Matter and Materials Physics. 80, 17, 174408.

Research output: Contribution to journalArticle

Static and dynamic magnetism in underdoped superconductor BaFe1.92Co0.08As2

Christianson, A. D., Lumsden, M. D., Nagler, S. E., MacDougall, G. J., McGuire, M. A., Sefat, A. S., Jin, R., Sales, B. C. & Mandrus, D., Aug 19 2009, In : Physical review letters. 103, 8, 087002.

Research output: Contribution to journalArticle

Static magnetic order and superfluid density of RFeAs(O,F) (R=La,Nd,Ce) and LaFePO studied by muon spin relaxation: Unusual similarities with the behavior of cuprate superconductors

Carlo, J. P., Uemura, Y. J., Goko, T., MacDougall, G., Rodriguez, J. A., Yu, W., Luke, G. M., Dai, P., Shannon, N., Miyasaka, S., Suzuki, S., Tajima, S., Chen, G. F., Hu, W. Z., Luo, J. L. & Wang, N. L., Feb 23 2009, In : Physical review letters. 102, 8, 087001.

Research output: Contribution to journalArticle

Two-dimensional resonant magnetic excitation in BaFe1.84Co0.16As2

Lumsden, M. D., Christianson, A. D., Parshall, D., Stone, M. B., Nagler, S. E., MacDougall, G. J., Mook, H. A., Lokshin, K., Egami, T., Abernathy, D. L., Goremychkin, E. A., Osborn, R., McGuire, M. A., Sefat, A. S., Jin, R., Sales, B. C. & Mandrus, D., Mar 9 2009, In : Physical review letters. 102, 10, 107005.

Research output: Contribution to journalArticle

2008

Absence of broken time-reversal symmetry in the pseudogap state of the high temperature La2-xSrxCuO4 superconductor from muon-spin-relaxation measurements

MacDougall, G., Aczel, A. A., Carlo, J. P., Ito, T., Rodriguez, J., Russo, P. L., Uemura, Y. J., Wakimoto, S. & Luke, G. M., Jul 1 2008, In : Physical review letters. 101, 1, 017001.

Research output: Contribution to journalArticle

2007

Gapped itinerant spin excitations account for missing entropy in the hidden-order state of URu"2Si"2

Wiebe, C. R., Janik, J. A., MacDougall, G. J., Luke, G. M., Garrett, J. D., Zhou, H. D., Jo, Y. J., Balicas, L., Qiu, Y., Copley, J. R. D., Yamani, Z. & Buyers, W. J. L., Feb 2007, In : Nature Physics. 3, 2, p. 96-100 5 p.

Research output: Contribution to journalArticle

Impurity-induced singlet breaking in Sr Cu2 (B O3) 2

Aczel, A. A., MacDougall, G. J., Rodriguez, J. A., Luke, G. M., Russo, P. L., Savici, A. T., Uemura, Y. J., Dabkowska, H. A., Wiebe, C. R., Janik, J. A. & Kageyama, H., Dec 26 2007, In : Physical Review B - Condensed Matter and Materials Physics. 76, 21, 214427.

Research output: Contribution to journalArticle

Muon spin relaxation study of superconducting Bi2 Sr2-x Lax Cu O6+δ

Russo, P. L., Wiebe, C. R., Uemura, Y. J., Savici, A. T., MacDougall, G. J., Rodriguez, J., Luke, G. M., Kaneko, N., Eisaki, H., Greven, M., Vajk, O. P., Ono, S., Ando, Y., Fujita, K., Kojima, K. M. & Uchida, S., Feb 15 2007, In : Physical Review B - Condensed Matter and Materials Physics. 75, 5, 054511.

Research output: Contribution to journalArticle

Phase separation and suppression of critical dynamics at quantum phase transitions of MnSi and (Sr 1-x Ca x )RuO 3

Uemura, Y. J., Goko, T., Gat-Malureanu, I. M., Carlo, J. P., Russo, P. L., Savici, A. T., Aczel, A., MacDougall, G., Rodriguez, J. A., Luke, G. M., Dunsiger, S. R., McCollam, A., Arai, J., Pfleiderer, C., Böni, P., Yoshimura, K., Baggio-Saitovitch, E., Fontes, M. B., Larrea, J., Sushko, Y. V. & 1 others, Sereni, J., Jan 25 2007, In : Nature Physics. 3, 1, p. 29-35 7 p.

Research output: Contribution to journalArticle

2005

Muon spin relaxation studies of magnetic-field-induced effects in high-Tc superconductors

Savici, A. T., Fukaya, A., Gat-Malureanu, I. M., Ito, T., Russo, P. L., Uemura, Y. J., Wiebe, C. R., Kyriakou, P. P., MacDougall, G. J., Rovers, M. T., Luke, G. M., Kojima, K. M., Goto, M., Uchida, S., Kadono, R., Yamada, K., Tajima, S., Masui, T., Eisaki, H., Kaneko, N. & 2 others, Greven, M. & Gu, G. D., Oct 7 2005, In : Physical review letters. 95, 15, 157001.

Research output: Contribution to journalArticle