Search Results - "Haghighirad, Amir A"

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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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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Enhanced optoelectronic quality of perovskite thin films with hypophosphorous acid for planar heterojunction solar cells by Zhang, Wei, Pathak, Sandeep, Sakai, Nobuya, Stergiopoulos, Thomas, Nayak, Pabitra K., Noel, Nakita K., Haghighirad, Amir A., Burlakov, Victor M., deQuilettes, Dane W., Sadhanala, Aditya, Li, Wenzhe, Wang, Liduo, Ginger, David S., Friend, Richard H., Snaith, Henry J.

“…Solution-processed metal halide perovskite semiconductors, such as CH 3 NH 3 PbI 3 , have exhibited remarkable performance in solar cells, despite having…”
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Signatures of a Quantum Griffiths Phase Close to an Electronic Nematic Quantum Phase Transition by Reiss, Pascal, Graf, David, Haghighirad, Amir A, Vojta, Thomas, Coldea, Amalia I

“…In the vicinity of a quantum critical point, quenched disorder can lead to a quantum Griffiths phase, accompanied by an exotic power-law scaling with a…”
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Robust Perpendicular Skyrmions and Their Surface Confinement by Zhang, Shilei, Burn, David M, Jaouen, Nicolas, Chauleau, Jean-Yves, Haghighirad, Amir A, Liu, Yizhou, Wang, Weiwei, van der Laan, Gerrit, Hesjedal, Thorsten

“…Magnetic skyrmions are two-dimensional magnetization swirls that stack in the form of tubes in the third dimension and which are proposed as prospective…”
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In2O3:H-Based Hole-Transport-Layer-Free Tin/Lead Perovskite Solar Cells for Efficient Four-Terminal All-Perovskite Tandem Solar Cells by Moghadamzadeh, Somayeh, Hossain, Ihteaz M, Loy, Moritz, Ritzer, David Benedikt, Hu, Hang, Hauschild, Dirk, Mertens, Adrian, Becker, Jan-Philipp, Haghighirad, Amir A, Ahlswede, Erik, Weinhardt, Lothar, Lemmer, Uli, Nejand, Bahram Abdollahi, Paetzold, Ulrich W

“…Narrow-band gap (NBG) Sn–Pb perovskites with band gaps of ∼1.2 eV, which correspond to a broad photon absorption range up to ∼1033 nm, are highly promising…”
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Unconventional localization of electrons inside of a nematic electronic phase by Farrar, Liam S., Zajicek, Zachary, Morfoot, Archie B., Bristow, Matthew, Humphries, Oliver S., Haghighirad, Amir A., McCollam, Alix, Bending, Simon J., Coldea, Amalia I.

“…The magnetotransport behavior inside the nematic phase of bulk FeSe reveals unusual multiband effects that cannot be reconciled with a simple two-band…”
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Shifts and Splittings of the Hole Bands in the Nematic Phase of FeSe by Watson, Matthew D., Haghighirad, Amir A., Takita, Hitoshi, Mansuer, Wumiti, Iwasawa, Hideaki, Schwier, Eike F., Ino, Akihiro, Hoesch, Moritz

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Collapse of metallicity and high-Tc superconductivity in the high-pressure phase of FeSe0.89S0.11 by Reiss, Pascal, McCollam, Alix, Zajicek, Zachary, Haghighirad, Amir A., Coldea, Amalia I.

“…We investigate the high-pressure phase of the iron-based superconductor FeSe 0.89 S 0.11 using transport and tunnel diode oscillator studies using diamond…”
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Step-Flow Growth of Bi2Te3 Nanobelts by Schönherr, Piet, Tilbury, Thomas, Wang, Haobei, Haghighirad, Amir A, Srot, Vesna, van Aken, Peter A, Hesjedal, Thorsten

“…Understanding the growth mechanism of nanostructures is key to tailoring their properties. Many compounds form nanowires following the vapor–liquid–solid (VLS)…”
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Resurgence of superconductivity and the role of dxy hole band in FeSe1−xTex by Morfoot, Archie B., Kim, Timur K., Watson, Matthew D., Haghighirad, Amir A., Singh, Shiv J., Bultinck, Nick, Coldea, Amalia I.

“…Iron-chalcogenide superconductors display rich phenomena caused by orbital-dependent band shifts and electronic correlations. Additionally, they are potential…”
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Probing the Local Electronic Structure in Metal Halide Perovskites through Cobalt Substitution by Haghighirad, Amir A., Klug, Matthew T., Duffy, Liam, Liu, Junjie, Ardavan, Arzhang, Laan, Gerrit, Hesjedal, Thorsten, Snaith, Henry J.

“…Owing to the unique chemical and electronic properties arising from 3d‐electrons, substitution with transition metal ions is one of the key routes for…”
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Structural Variations and Magnetic Properties of the Quantum Antiferromagnets Cs2CuCl4-xBrx by PHAM THANH CONG, WOLF, Bernd, VAN WELL, Natalija, HAGHIGHIRAD, Amir A, RITTER, Franz, ASSMUS, Wolf, KRELLNER, Cornelius, LANG, Michael

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Structural Variations and Magnetic Properties of the Quantum Antiferromagnets by Pham Thanh Cong, Wolf, Bernd, van Well, Natalija, Haghighirad, Amir A., Ritter, Franz, Assmus, Wolf, Krellner, Cornelius, Lang, Michael

“…Depending on the crystal growth conditions, an orthorhombic (O-type) or a tetragonal (T-type) structure can be found in the solid solution Cs 2 CuCl 4-x Br x…”
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Spontaneous Enhancement of the Power Output in Surface-Passivated Triple-Cation Perovskite Solar Cells by Moghadamzadeh, Somayeh, Gharibzadeh, Saba, Jakoby, Marius, Khan, Motiur Rahman, Haghighirad, Amir A., Howard, Ian A., Richards, Bryce S., Lemmer, Uli, Paetzold, Ulrich W.

“…The power conversion efficiency of hybrid organic-inorganic perovskite solar cells (PSCs) has been reported to increase spontaneously during storage in the…”
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