LUX-ZEPLIN

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Contrasting charge-carrier dynamics across key metal-halide perovskite compositions through in situ simultaneous probes

Advanced Functional Materials Wiley 33:51 (2023) 2305283

Authors:

Am Ulatowski, Ka Elmestekawy, Jb Patel, Nk Noel, S Yan, H Kraus, Pg Huggard, Mb Johnston, Laura Herz

Abstract:

Metal-halide perovskites have proven to be a versatile group of semiconductors for optoelectronic applications, with ease of bandgap tuning and stability improvements enabled by halide and cation mixing. However, such compositional variations can be accompanied by significant changes in their charge-carrier transport and recombination regimes that are still not fully understood. Here, a novel combinatorial technique is presented to disentangle such dynamic processes over a wide range of temperatures, based on transient free-space, high-frequency microwave conductivity and photoluminescence measurements conducted simultaneously in situ. Such measurements are used to reveal and contrast the dominant charge-carrier recombination pathways for a range of key compositions: prototypical methylammonium lead iodide perovskite (MAPbI3), the stable mixed formamidinium-caesium lead-halide perovskite FA0.83Cs0.17PbBr0.6I2.4 targeted for photovoltaic tandems with silicon, and fully inorganic wide-bandgap CsPbBr3 aimed toward light sources and X-ray detector applications. The changes in charge-carrier dynamics in FA0.83Cs0.17PbBr0.6I2.4 across temperatures are shown to be dominated by radiative processes, while those in MAPbI3 are governed by energetic disorder at low temperatures, low-bandgap minority-phase inclusions around the phase transition, and non-radiative processes at room temperature. In contrast, CsPbBr3 exhibits significant charge-carrier trapping at low and high temperatures, highlighting the need for improvement of material processing techniques for wide-bandgap perovskites.
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A search for new physics in low-energy electron recoils from the first LZ exposure

(2023)

Authors:

The LZ Collaboration, J Aalbers, DS Akerib, AK Al Musalhi, F Alder, CS Amarasinghe, A Ames, TJ Anderson, N Angelides, HM Araújo, JE Armstrong, M Arthurs, A Baker, S Balashov, J Bang, JW Bargemann, A Baxter, K Beattie, P Beltrame, T Benson, A Bhatti, A Biekert, TP Biesiadzinski, HJ Birch, GM Blockinger, B Boxer, CAJ Brew, P Brás, S Burdin, M Buuck, MC Carmona-Benitez, C Chan, A Chawla, H Chen, JJ Cherwinka, NI Chott, MV Converse, A Cottle, G Cox, D Curran, CE Dahl, A David, J Delgaudio, S Dey, L de Viveiros, C Ding, JEY Dobson, E Druszkiewicz, SR Eriksen, A Fan, NM Fearon, S Fiorucci, H Flaecher, ED Fraser, TMA Fruth, RJ Gaitskell, A Geffre, J Genovesi, C Ghag, R Gibbons, S Gokhale, J Green, MGD van der Grinten, CR Hall, S Han, E Hartigan-O'Connor, SJ Haselschwardt, DQ Huang, SA Hertel, G Heuermann, M Horn, D Hunt, CM Ignarra, O Jahangir, RS James, J Johnson, AC Kaboth, AC Kamaha, D Khaitan, A Khazov, I Khurana, J Kim, J Kingston, R Kirk, D Kodroff, L Korley, EV Korolkova, H Kraus, S Kravitz, L Kreczko, B Krikler, VA Kudryavtsev, EA Leason, J Lee, DS Leonard, KT Lesko, C Levy, J Lin, A Lindote, R Linehan, WH Lippincott, X Liu, MI Lopes, E Lopez Asamar, W Lorenzon, C Lu, D Lucero, S Luitz, PA Majewski, A Manalaysay, RL Mannino, C Maupin, ME McCarthy, G McDowell, DN McKinsey, J McLaughlin, EH Miller, E Mizrachi, A Monte, ME Monzani, JD Morales Mendoza, E Morrison, BJ Mount, M Murdy, A St J Murphy, D Naim, A Naylor, C Nedlik, HN Nelson, F Neves, A Nguyen, JA Nikoleyczik, I Olcina, KC Oliver-Mallory, J Orpwood, KJ Palladino, J Palmer, N Parveen, SJ Patton, B Penning, G Pereira, E Perry, T Pershing, A Piepke, S Poudel, Y Qie, J Reichenbacher, CA Rhyne, Q Riffard, GRC Rischbieter, HS Riyat, R Rosero, T Rushton, D Rynders, D Santone, ABMR Sazzad, RW Schnee, S Shaw, T Shutt, JJ Silk, C Silva, G Sinev, R Smith, VN Solovov, P Sorensen, J Soria, I Stancu, A Stevens, K Stifter, B Suerfu, TJ Sumner, M Szydagis, WC Taylor, DJ Temples, DR Tiedt, M Timalsina, Z Tong, DR Tovey, J Tranter, M Trask, M Tripathi, DR Tronstad, W Turner, A Vacheret, AC Vaitkus, A Wang, JJ Wang, Y Wang, JR Watson, RC Webb, L Weeldreyer, TJ Whitis, M Williams, WJ Wisniewski, FLH Wolfs, S Woodford, D Woodward, CJ Wright, Q Xia, X Xiang, J Xu, M Yeh, EA Zweig
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First Dark Matter Search Results from the LUX-ZEPLIN (LZ) Experiment

Phys.Rev.Lett. 131 (2023) 4, 041002

Authors:

J. Aalbers, D.S. Akerib, C.W. Akerlof, A.K. Al Musalhi, F. Alder, A. Alqahtani, S.K. Alsum, C.S. Amarasinghe, A. Ames, T.J. Anderson, N. Angelides, H.M. Araújo, J.E. Armstrong, M. Arthurs, S. Azadi, A.J. Bailey, A. Baker, J. Balajthy, S. Balashov, J. Bang, J.W. Bargemann, M.J. Barry, J. Barthel, D. Bauer, A. Baxter, K. Beattie, J. Belle, P. Beltrame, J. Bensinger, T. Benson, E.P. Bernard, A. Bhatti, A. Biekert, T.P. Biesiadzinski, H.J. Birch, B. Birrittella, G.M. Blockinger, K.E. Boast, B. Boxer, R. Bramante, C.A.J. Brew, P. Brás, J.H. Buckley, V.V. Bugaev, S. Burdin, J.K. Busenitz, M. Buuck, R. Cabrita, C. Carels, D.L. Carlsmith, B. Carlson, M.C. Carmona-Benitez, M. Cascella, C. Chan, A. Chawla, H. Chen, J.J. Cherwinka, N.I. Chott, A. Cole, J. Coleman, M.V. Converse, A. Cottle, G. Cox, W.W. Craddock, O. Creaner, D. Curran, A. Currie, J.E. Cutter, C.E. Dahl, A. David, J. Davis, T.J.R. Davison, J. Delgaudio, S. Dey, L. de Viveiros, A. Dobi, J.E.Y. Dobson, E. Druszkiewicz, A. Dushkin, T.K. Edberg, W.R. Edwards, M.M. Elnimr, W.T. Emmet, S.R. Eriksen, C.H. Faham, A. Fan, S. Fayer, N.M. Fearon, S. Fiorucci, H. Flaecher, P. Ford, V.B. Francis, E.D. Fraser, T. Fruth, R.J. Gaitskell, N.J. Gantos, D. Garcia, A. Geffre, V.M. Gehman, J. Genovesi , C. Ghag, R. Gibbons, E. Gibson, M.G.D. Gilchriese, S. Gokhale, B. Gomber, J. Green, A. Greenall, S. Greenwood, M.G.D.van der Grinten, C.B. Gwilliam, C.R. Hall, S. Hans, K. Hanzel, A. Harrison, E. Hartigan-O'Connor, S.J. Haselschwardt, S.A. Hertel, G. Heuermann, C. Hjemfelt, M.D. Hoff, E. Holtom, J.Y-K. Hor, M. Horn, D.Q. Huang, D. Hunt, C.M. Ignarra, R.G. Jacobsen, O. Jahangir, R.S. James, S.N. Jeffery, W. Ji, J. Johnson, A.C. Kaboth, A.C. Kamaha, K. Kamdin, V. Kasey, K. Kazkaz, J. Keefner, D. Khaitan, M. Khaleeq, A. Khazov, I. Khurana, Y.D. Kim, C.D. Kocher, D. Kodroff, L. Korley, E.V. Korolkova, J. Kras, H. Kraus, S. Kravitz, H.J. Krebs, L. Kreczko, B. Krikler, V.A. Kudryavtsev, S. Kyre, B. Landerud, E.A. Leason, C. Lee, J. Lee, D.S. Leonard, R. Leonard, K.T. Lesko, C. Levy, J. Li, F.-T. Liao, J. Liao, J. Lin, A. Lindote, R. Linehan, W.H. Lippincott, R. Liu, X. Liu, Y. Liu, C. Loniewski, M.I. Lopes, E. Lopez Asamar, B. López Paredes, W. Lorenzon, D. Lucero, S. Luitz, J.M. Lyle, P.A. Majewski, J. Makkinje, D.C. Malling, A. Manalaysay, L. Manenti, R.L. Mannino, N. Marangou, M.F. Marzioni, C. Maupin, M.E. McCarthy, C.T. McConnell, D.N. McKinsey, J. McLaughlin, Y. Meng, J. Migneault, E.H. Miller, E. Mizrachi, J.A. Mock, A. Monte, M.E. Monzani, J.A. Morad, J.D. Morales Mendoza, E. Morrison, B.J. Mount, M. Murdy, A.St.J. Murphy, D. Naim, A. Naylor, C. Nedlik, C. Nehrkorn, F. Neves, A. Nguyen, J.A. Nikoleyczik, A. Nilima, J. O'Dell, F.G. O'Neill, K. O'Sullivan, I. Olcina, M.A. Olevitch, K.C. Oliver-Mallory, J. Orpwood, D. Pagenkopf, S. Pal, K.J. Palladino, J. Palmer, M. Pangilinan, N. Parveen, S.J. Patton, E.K. Pease, B. Penning, C. Pereira, G. Pereira, E. Perry, T. Pershing, I.B. Peterson, A. Piepke, J. Podczerwinski, D. Porzio, S. Powell, R.M. Preece, K. Pushkin, Y. Qie, B.N. Ratcliff, J. Reichenbacher, L. Reichhart, C.A. Rhyne, A. Richards, Q. Riffard, G.R.C. Rischbieter, J.P. Rodrigues, A. Rodriguez, H.J. Rose, R. Rosero, P. Rossiter, T. Rushton, G. Rutherford, D. Rynders, J.S. Saba, D. Santone, A.B.M.R. Sazzad, R.W. Schnee, P.R. Scovell, D. Seymour, S. Shaw, T. Shutt, J.J. Silk, C. Silva, G. Sinev, K. Skarpaas, W. Skulski, R. Smith, M. Solmaz, V.N. Solovov, P. Sorensen, J. Soria, I. Stancu, M.R. Stark, A. Stevens, T.M. Stiegler, K. Stifter, R. Studley, B. Suerfu, T.J. Sumner, P. Sutcliffe, N. Swanson, M. Szydagis, M. Tan, D.J. Taylor, R. Taylor, W.C. Taylor, D.J. Temples, B.P. Tennyson, P.A. Terman, K.J. Thomas, D.R. Tiedt, M. Timalsina, W.H. To, A. Tomás, Z. Tong, D.R. Tovey, J. Tranter, M. Trask, M. Tripathi, D.R. Tronstad, C.E. Tull, W. Turner, L. Tvrznikova, U. Utku, J. Va'vra, A. Vacheret, A.C. Vaitkus, J.R. Verbus, E. Voirin, W.L. Waldron, A. Wang, B. Wang, J.J. Wang, W. Wang, Y. Wang, J.R. Watson, R.C. Webb, A. White, D.T. White, J.T. White, R.G. White, T.J. Whitis, M. Williams, W.J. Wisniewski, M.S. Witherell, F.L.H. Wolfs, J.D. Wolfs, S. Woodford, D. Woodward, S.D. Worm, C.J. Wright, Q. Xia, X. Xiang, Q. Xiao, J. Xu, M. Yeh, J. Yin, I. Young, P. Zarzhitsky, A. Zuckerman, E.A. Zweig

Abstract:

The LUX-ZEPLIN experiment is a dark matter detector centered on a dual-phase xenon time projection chamber operating at the Sanford Underground Research Facility in Lead, South Dakota, USA. This Letter reports results from LUX-ZEPLIN’s first search for weakly interacting massive particles (WIMPs) with an exposure of 60 live days using a fiducial mass of 5.5 t. A profile-likelihood ratio analysis shows the data to be consistent with a background-only hypothesis, setting new limits on spin-independent WIMP-nucleon, spin-dependent WIMP-neutron, and spin-dependent WIMP-proton cross sections for WIMP masses above 9  GeV/c2. The most stringent limit is set for spin-independent scattering at 36  GeV/c2, rejecting cross sections above 9.2×10-48  cm at the 90% confidence level.
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Background determination for the LUX-ZEPLIN dark matter experiment

Phys.Rev.D 108 (2023) 1, 012010

Authors:

J. Aalbers, D.S. Akerib, A.K. Al Musalhi, F. Alder, S.K. Alsum, C.S. Amarasinghe, A. Ames, T.J. Anderson, N. Angelides, H.M. Araújo, J.E. Armstrong, M. Arthurs, A. Baker, J. Bang, J.W. Bargemann, A. Baxter, K. Beattie, P. Beltrame, E.P. Bernard, A. Bhatti, A. Biekert, T.P. Biesiadzinski, H.J. Birch, G.M. Blockinger, B. Boxer, C.A.J. Brew, P. Brás, S. Burdin, M. Buuck, R. Cabrita, M.C. Carmona-Benitez, C. Chan, A. Chawla, H. Chen, A.P.S. Chiang, N.I. Chott, M.V. Converse, A. Cottle, G. Cox, O. Creaner, C.E. Dahl, A. David, S. Dey, L. de Viveiros, C. Ding, J.E.Y. Dobson, E. Druszkiewicz, S.R. Eriksen, A. Fan, N.M. Fearon, S. Fiorucci, H. Flaecher, E.D. Fraser, T. Fruth, R.J. Gaitskell, J. Genovesi, C. Ghag, R. Gibbons, M.G.D. Gilchriese, S. Gokhale, J. Green, M.G.D.van der Grinten, C.B. Gwilliam, C.R. Hall, S. Han, E. Hartigan-O'Connor, S.J. Haselschwardt, S.A. Hertel, G. Heuermann, M. Horn, D.Q. Huang, D. Hunt, C.M. Ignarra, R.G. Jacobsen, O. Jahangir, R.S. James, J. Johnson, A.C. Kaboth, A.C. Kamaha, D. Khaitan, I. Khurana, R. Kirk, D. Kodroff, L. Korley, E.V. Korolkova, H. Kraus, S. Kravitz, L. Kreczko, B. Krikler, V.A. Kudryavtsev, E.A. Leason, J. Lee, D.S. Leonard, K.T. Lesko, C. Levy, J. Lin, A. Lindote, R. Linehan, W.H. Lippincott, X. Liu , M.I. Lopes, E. Lopez Asamar, B. López Paredes, W. Lorenzon, C. Lu, S. Luitz, P.A. Majewski, A. Manalaysay, R.L. Mannino, N. Marangou, M.E. McCarthy, D.N. McKinsey, J. McLaughlin, E.H. Miller, E. Mizrachi, A. Monte, M.E. Monzani, J.D. Morales Mendoza, E. Morrison, B.J. Mount, M. Murdy, A.St.J. Murphy, D. Naim, A. Naylor, C. Nedlik, H.N. Nelson, F. Neves, A. Nguyen, J.A. Nikoleyczik, I. Olcina, K.C. Oliver-Mallory, J. Orpwood, K.J. Palladino, J. Palmer, N. Parveen, S.J. Patton, B. Penning, G. Pereira, E. Perry, T. Pershing, A. Piepke, D. Porzio, S. Poudel, Y. Qie, J. Reichenbacher, C.A. Rhyne, Q. Riffard, G.R.C. Rischbieter, H.S. Riyat, R. Rosero, P. Rossiter, T. Rushton, D. Santone, A.B.M.R. Sazzad, R.W. Schnee, S. Shaw, T. Shutt, J.J. Silk, C. Silva, G. Sinev, R. Smith, M. Solmaz, V.N. Solovov, P. Sorensen, J. Soria, I. Stancu, A. Stevens, K. Stifter, B. Suerfu, T.J. Sumner, N. Swanson, M. Szydagis, R. Taylor, W.C. Taylor, D.J. Temples, P.A. Terman, D.R. Tiedt, M. Timalsina, Z. Tong, D.R. Tovey, J. Tranter, M. Trask, M. Tripathi, D.R. Tronstad, W. Turner, U. Utku, A.C. Vaitkus, A. Wang, J.J. Wang, W. Wang, Y. Wang, J.R. Watson, R.C. Webb, T.J. Whitis, M. Williams, F.L.H. Wolfs, S. Woodford, D. Woodward, C.J. Wright, Q. Xia, X. Xiang, J. Xu, M. Yeh

Abstract:

The LUX-ZEPLIN experiment recently reported limits on WIMP-nucleus interactions from its initial science run, down to 9.2×10-48  cm2 for the spin-independent interaction of a 36  GeV/c2 WIMP at 90% confidence level. In this paper, we present a comprehensive analysis of the backgrounds important for this result and for other upcoming physics analyses, including neutrinoless double-beta decay searches and effective field theory interpretations of LUX-ZEPLIN data. We confirm that the in-situ determinations of bulk and fixed radioactive backgrounds are consistent with expectations from the ex-situ assays. The observed background rate after WIMP search criteria were applied was (6.3±0.5)×10-5  events/keVee/kg/day in the low-energy region, approximately 60 times lower than the equivalent rate reported by the LUX experiment.
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Observation of a low energy nuclear recoil peak in the neutron calibration data of the CRESST-III experiment

Physical Review D American Physical Society (APS) 108:2 (2023) 022005

Authors:

G Angloher, S Banik, G Benato, A Bento, A Bertolini, R Breier, C Bucci, J Burkhart, L Canonica, A D’Addabbo, S Di Lorenzo, L Einfalt, A Erb, FV Feilitzsch, S Fichtinger, D Fuchs, A Fuss, A Garai, VM Ghete, S Gerster, P Gorla, PV Guillaumon, S Gupta, D Hauff, M Ješkovský, J Jochum, M Kaznacheeva, A Kinast, H Kluck, H Kraus, A Langenkämper, M Mancuso, L Marini, L Meyer, V Mokina, A Nilima, M Olmi, T Ortmann, C Pagliarone, L Pattavina, F Petricca, W Potzel, P Povinec, F Pröbst, F Pucci, F Reindl, J Rothe, K Schäffner, J Schieck, D Schmiedmayer, S Schönert, C Schwertner, M Stahlberg, L Stodolsky, C Strandhagen, R Strauss, I Usherov, F Wagner, M Willers, V Zema
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