Search Results - "Haghighirad, A. A"

Direct Observation of Twisted Surface skyrmions in Bulk Crystals by Zhang, S L, van der Laan, G, Wang, W W, Haghighirad, A A, Hesjedal, T

“…Magnetic skyrmions in noncentrosymmetric helimagnets with D_{n} symmetry are Bloch-type magnetization swirls with a helicity angle of ±90°. At the surface of…”
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Emerging symmetric strain response and weakening nematic fluctuations in strongly hole-doped iron-based superconductors by Wiecki, P., Frachet, M., Haghighirad, A.-A., Wolf, T., Meingast, C., Heid, R., Böhmer, A. E.

“…Electronic nematicity is often found in unconventional superconductors, suggesting its relevance for electronic pairing. In the strongly hole-doped iron-based…”
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Using strain to uncover the interplay between two- and three-dimensional charge density waves in high-temperature superconducting YBa2Cu3Oy by Vinograd, I., Souliou, S. M., Haghighirad, A.-A., Lacmann, T., Caplan, Y., Frachet, M., Merz, M., Garbarino, G., Liu, Y., Nakata, S., Ishida, K., Noad, H. M. L., Minola, M., Keimer, B., Orgad, D., Hicks, C. W., Le Tacon, M.

“…Uniaxial pressure provides an efficient approach to control charge density waves in YBa 2 Cu 3 O y . It can enhance the correlation volume of ubiquitous…”
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Dichotomy between the Hole and Electron Behavior in Multiband Superconductor FeSe Probed by Ultrahigh Magnetic Fields by Watson, M D, Yamashita, T, Kasahara, S, Knafo, W, Nardone, M, Béard, J, Hardy, F, McCollam, A, Narayanan, A, Blake, S F, Wolf, T, Haghighirad, A A, Meingast, C, Schofield, A J, Löhneysen, H v, Matsuda, Y, Coldea, A I, Shibauchi, T

“…Magnetoresistivity ρ(xx) and Hall resistivity ρ(xy) in ultrahigh magnetic fields up to 88 T are measured down to 0.15 K to clarify the multiband electronic…”
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Emergence of the nematic electronic state in FeSe by Watson, M. D., Kim, T. K., Haghighirad, A. A., Davies, N. R., McCollam, A., Narayanan, A., Blake, S. F., Chen, Y. L., Ghannadzadeh, S., Schofield, A. J., Hoesch, M., Meingast, C., Wolf, T., Coldea, A. I.

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Impact of the Halide Cage on the Electronic Properties of Fully Inorganic Cesium Lead Halide Perovskites by Yang, Z, Surrente, A, Galkowski, K, Miyata, A, Portugall, O, Sutton, R. J, Haghighirad, A. A, Snaith, H. J, Maude, D. K, Plochocka, P, Nicholas, R. J

“…Perovskite solar cells with record power conversion efficiency are fabricated by alloying both hybrid and fully inorganic compounds. While the basic electronic…”
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Electronic anisotropies revealed by detwinned angle-resolved photo-emission spectroscopy measurements of FeSe by Watson, Matthew D, Haghighirad, Amir A, Rhodes, Luke C, Hoesch, Moritz, Kim, Timur K

“…We report high resolution angle-resolved photo-emission spectroscopy (ARPES) measurements of detwinned FeSe single crystals. The application of a mechanical…”
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Cubic or Orthorhombic? Revealing the Crystal Structure of Metastable Black-Phase CsPbI3 by Theory and Experiment by Sutton, Rebecca J, Filip, Marina R, Haghighirad, Amir A, Sakai, Nobuya, Wenger, Bernard, Giustino, Feliciano, Snaith, Henry J

“…Room-temperature films of black-phase cesium lead iodide (CsPbI3) are widely thought to be trapped in a cubic perovskite polymorph. Here, we challenge this…”
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Mechanism for rapid growth of organic–inorganic halide perovskite crystals by Nayak, Pabitra K., Moore, David T., Wenger, Bernard, Nayak, Simantini, Haghighirad, Amir A., Fineberg, Adam, Noel, Nakita K., Reid, Obadiah G., Rumbles, Garry, Kukura, Philipp, Vincent, Kylie A., Snaith, Henry J.

“…Optoelectronic devices based on hybrid halide perovskites have shown remarkable progress to high performance. However, despite their apparent success, there…”
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Quenched nematic criticality and two superconducting domes in an iron-based superconductor by Reiss, Pascal, Graf, David, Haghighirad, Amir A., Knafo, William, Drigo, Loïc, Bristow, Matthew, Schofield, Andrew J., Coldea, Amalia I.

“…The nematic electronic state and its associated critical fluctuations have emerged as a potential candidate for the superconducting pairing in various…”
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Vortex-lattice melting and paramagnetic depairing in the nematic superconductor FeSe by Hardy, F., Doussoulin, L., Klein, T., He, M., Demuer, A., Willa, R., Willa, K., Haghighirad, A.-A., Wolf, T., Merz, M., Meingast, C., Marcenat, C.

“…The full H-T phase diagram in the nematic superconductor FeSe is mapped out using heat-capacity and thermal-expansion measurements down to 0.7 K and up to 30 T…”
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Elastoresistivity in the incommensurate charge density wave phase of BaNi2(As1−xPx)2 by Frachet, M., Wiecki, P., Lacmann, T., Souliou, S. M., Willa, K., Meingast, C., Merz, M., Haghighirad, A.-A., Le Tacon, M., Böhmer, A. E.

“…Electronic nematicity, the breaking of the crystal lattice rotational symmetry by the electronic fluid, is a fascinating quantum state of matter. In this work,…”
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Dominant In-Plane Symmetric Elastoresistance in CsFe2As2 by Wiecki, P, Haghighirad, A-A, Weber, F, Merz, M, Heid, R, Böhmer, A E

“…We study the elastoresistance of the highly correlated material CsFe2As2 in all symmetry channels. Neutralizing its thermal expansion by means of a…”
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Unveiling the quasiparticle behaviour in the pressure-induced high-T c phase of an iron-chalcogenide superconductor by Z. Zajicek, P. Reiss, D. Graf, J. C. A. Prentice, Y. Sadki, A. A. Haghighirad, A. I. Coldea

“…Abstract Superconductivity of iron chalocogenides is strongly enhanced under applied pressure yet its underlying pairing mechanism remains elusive. Here, we…”
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Evolution of the low-temperature Fermi surface of superconducting FeSe1−xSx across a nematic phase transition by Coldea, Amalia I., Blake, Samuel F., Kasahara, Shigeru, Haghighirad, Amir A., Watson, Matthew D., Knafo, William, Choi, Eun Sang, McCollam, Alix, Reiss, Pascal, Yamashita, Takuya, Bruma, Mara, Speller, Susannah C., Matsuda, Yuji, Wolf, Thomas, Shibauchi, Takasada, Schofield, Andrew J.

“…The existence of a nematic phase transition in iron-chalcogenide superconductors poses an intriguing question about its impact on superconductivity. To…”
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Suppression of superconductivity and enhanced critical field anisotropy in thin flakes of FeSe by Farrar, Liam S., Bristow, Matthew, Haghighirad, Amir A., McCollam, Alix, Bending, Simon J., Coldea, Amalia I.

“…FeSe is a unique superconductor that can be manipulated to enhance its superconductivity using different routes, while its monolayer form grown on different…”
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Dynamics of collective modes in an unconventional charge density wave system BaNi2As2 by Pokharel, Amrit Raj, Grigorev, Vladimir, Mejas, Arjan, Dong, Tao, Haghighirad, Amir A., Heid, Rolf, Yao, Yi, Merz, Michael, Le Tacon, Matthieu, Demsar, Jure

“…BaNi 2 As 2 is a non-magnetic analogue of BaFe 2 As 2 , the parent compound of a prototype pnictide high-temperature superconductor, displaying…”
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Unveiling the quasiparticle behaviour in the pressure-induced high-Tc phase of an iron-chalcogenide superconductor by Zajicek, Z., Reiss, P., Graf, D., Prentice, J. C. A., Sadki, Y., Haghighirad, A. A., Coldea, A. I.

“…Superconductivity of iron chalocogenides is strongly enhanced under applied pressure yet its underlying pairing mechanism remains elusive. Here, we present a…”
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Publisher's Note: Dichotomy between the Hole and Electron Behavior in Multiband Superconductor FeSe Probed by Ultrahigh Magnetic Fields [Phys. Rev. Lett. 115, 027006 (2015)] by Watson, M D, Yamashita, T, Kasahara, S, Knafo, W, Nardone, M, Béard, J, Hardy, F, McCollam, A, Narayanan, A, Blake, S F, Wolf, T, Haghighirad, A A, Meingast, C, Schofield, A J, V Löhneysen, H, Matsuda, Y, Coldea, A I, Shibauchi, T

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Anomalous high-magnetic field electronic state of the nematic superconductors FeSe_{1−x}S_{x} by M. Bristow, P. Reiss, A. A. Haghighirad, Z. Zajicek, S. J. Singh, T. Wolf, D. Graf, W. Knafo, A. McCollam, A. I. Coldea

“…Understanding superconductivity requires detailed knowledge of the normal electronic state from which it emerges. A nematic electronic state that breaks the…”
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