{"total":21,"items":[{"citing_arxiv_id":"2606.04821","ref_index":30,"ref_count":1,"confidence":0.98,"is_internal_anchor":true,"paper_title":"A unified theory of thin film and bulk bilayer nickelates","primary_cat":"cond-mat.supr-con","submitted_at":"2026-06-03T12:43:42+00:00","verdict":"UNVERDICTED","verdict_confidence":"LOW","novelty_score":5.0,"formal_verification":"none","one_line_summary":"A two-component scenario unifies key observations in bilayer nickelate superconductivity, predicting doping-dependent superconducting domes and normal-state behaviors that differ by interlayer coupling strength.","context_count":0,"top_context_role":null,"top_context_polarity":null,"context_text":null},{"citing_arxiv_id":"2605.25654","ref_index":36,"ref_count":1,"confidence":0.9,"is_internal_anchor":true,"paper_title":"The evolution of pairing correlation with $3d_{z^{2}}$ electron filling in a bilayer two-orbital model for La$_3$Ni$_2$O$_7$","primary_cat":"cond-mat.str-el","submitted_at":"2026-05-25T10:00:39+00:00","verdict":"UNVERDICTED","verdict_confidence":"LOW","novelty_score":5.0,"formal_verification":"none","one_line_summary":"DMRG simulations on a 1D bilayer two-orbital model for La3Ni2O7 show superconducting correlations suppressed near half-filling of the 3d_z2 orbital, indicating its itinerancy favors pairing.","context_count":0,"top_context_role":null,"top_context_polarity":null,"context_text":null},{"citing_arxiv_id":"2605.15703","ref_index":48,"ref_count":1,"confidence":0.9,"is_internal_anchor":true,"paper_title":"Observation of flat-bottom U-shaped energy gap in high-Tc nickelate (La,Pr)3Ni2O7 thin films","primary_cat":"cond-mat.supr-con","submitted_at":"2026-05-15T07:48:59+00:00","verdict":"UNVERDICTED","verdict_confidence":"LOW","novelty_score":6.0,"formal_verification":"none","one_line_summary":"Observation of an energy-symmetric flat-bottom U-shaped gap with zero residual DOS in (La,Pr)3Ni2O7 thin films, showing unconventional temperature evolution and magnetic field suppression consistent with a nodeless superconducting gap.","context_count":0,"top_context_role":null,"top_context_polarity":null,"context_text":null},{"citing_arxiv_id":"2605.14806","ref_index":28,"ref_count":1,"confidence":0.98,"is_internal_anchor":true,"paper_title":"Atomically resolved intrinsic superconducting gap in (La,Pr)3Ni2O7 films","primary_cat":"cond-mat.supr-con","submitted_at":"2026-05-14T13:18:53+00:00","verdict":"UNVERDICTED","verdict_confidence":"LOW","novelty_score":7.0,"formal_verification":"none","one_line_summary":"STM spectroscopy on bilayer nickelate ultrathin films reveals reproducible U-shaped spectra with nodeless gaps of ~14 and ~20 meV and flat zero-conductance regions.","context_count":0,"top_context_role":null,"top_context_polarity":null,"context_text":null},{"citing_arxiv_id":"2605.11584","ref_index":14,"ref_count":1,"confidence":0.9,"is_internal_anchor":true,"paper_title":"Experimental Progress in Ambient-Pressure Superconducting Bilayer Nickelate Films","primary_cat":"cond-mat.supr-con","submitted_at":"2026-05-12T06:06:29+00:00","verdict":"UNVERDICTED","verdict_confidence":"LOW","novelty_score":2.0,"formal_verification":"none","one_line_summary":"Epitaxial strain enables ambient-pressure superconductivity in bilayer nickelate films, facilitating detailed studies of their properties and phase diagrams.","context_count":1,"top_context_role":"background","top_context_polarity":"background","context_text":"Shen D, Feng D and Nie Y 2025 Observation of superconductivity -induced leading-edge gap in Sr-doped La3Ni2O7 thin films 10.48550/arXiv.2507.07409 [13] Li Y , Xu L, Lv W, Nie Z, Wang Z, Miao Y , Shen J, Zhou G, Song W, Wang H, Huang H, He J, Jia J -F, Li P, Xue Q -K and Chen Z 2026 Three -dimensional electronic structures in superconducting Ruddlesden-Popper bilayer nickelate films 10.48550/arXiv.2604.08430 [14] Shen J, Zhou G, Miao Y , Li P, Ou Z, Chen Y , Wang Z, Luan R, Sun H, Feng Z, Yong X, Li Y , Xu L, Lv W, Nie Z, Wang H, Huang H, Sun Y-J, Xue Q-K, He J and Chen Z 2025 Nodeless superconducting gap and electron -boson coupling in (La,Pr,Sm) 3Ni2O7 films 10.48550/arXiv.2502.17831 [15] Chen X, Zhang W, Peng F, Cui T, Zhou G, L i Z, Choi J, Xu L, Chiu Y -F, Agrestini S,"},{"citing_arxiv_id":"2605.10101","ref_index":32,"ref_count":1,"confidence":0.9,"is_internal_anchor":true,"paper_title":"Correlation-Driven Orbital-Selective Fermiology and Superconductivity in the Bilayer Nickelate La$_3$Ni$_2$O$_7$","primary_cat":"cond-mat.str-el","submitted_at":"2026-05-11T07:17:45+00:00","verdict":"UNVERDICTED","verdict_confidence":"LOW","novelty_score":6.0,"formal_verification":"none","one_line_summary":"Correlations in the nickelate drive the gamma band below the Fermi level and shift the dominant superconducting pairing to d_x2-y2 interlayer spin-singlet mediated by antiferromagnetism and Hund's coupling.","context_count":1,"top_context_role":"background","top_context_polarity":"background","context_text":"(ARPES) experiments on La 3Ni2O7 thin films have brought this issue into sharp focus [32-36]. Two in- dependent measurements from different researchers re- vealed that thed z2-derivedγband lies approximately 70 meV below the Fermi level, with noγpocket de- tected [33, 35]. While other experiments have reported theγband crossing the Fermi level in different sam- ples [32, 34]-potentially due to variations in thickness, composition, strain, interfacial reconstruction, or growth conditions-this discrepancy underscores the importance of studying the presence or absence of theγpocket for understanding the pairing mechanisms and pairing sym- metry in La 3Ni2O7. Furthermore, the electronic bands observed in ARPES exhibit significant renormalization"},{"citing_arxiv_id":"2604.21899","ref_index":25,"ref_count":1,"confidence":0.9,"is_internal_anchor":true,"paper_title":"$3d_{z^2}$ orbital delocalization and magnetic collapse in superconducting (La,Pr)$_3$Ni$_2$O$_{7-\\delta}$ films","primary_cat":"cond-mat.supr-con","submitted_at":"2026-04-23T17:47:38+00:00","verdict":"UNVERDICTED","verdict_confidence":"LOW","novelty_score":6.0,"formal_verification":"none","one_line_summary":"Compressive strain and oxygenation in (La,Pr)₃Ni₂O₇₋δ films delocalize Ni 3d_z² and O 2p_z orbitals, suppress long-range spin-density-wave order, and preserve short-range magnons as prerequisites for superconductivity.","context_count":0,"top_context_role":null,"top_context_polarity":null,"context_text":null},{"citing_arxiv_id":"2604.20613","ref_index":57,"ref_count":1,"confidence":0.9,"is_internal_anchor":true,"paper_title":"Superconductivity in bilayer La$_3$Ni$_2$O$_7$: A review focusing on the strong-coupling Hund's rule assisted pairing mechanism","primary_cat":"cond-mat.supr-con","submitted_at":"2026-04-22T14:28:30+00:00","verdict":"UNVERDICTED","verdict_confidence":"LOW","novelty_score":3.0,"formal_verification":"none","one_line_summary":"Superconductivity in La3Ni2O7 arises from interlayer Cooper pairs of 3d_x2-y2 electrons driven by effective J_perp from Hund-assisted AFM exchange transfer, while localized 3d_z2 electrons form rung singlets that produce a pseudogap but no condensate.","context_count":1,"top_context_role":"background","top_context_polarity":"background","context_text":"structure of compressively strained thin film la2prni2o7, arXiv:2504.16372 (2025). [56] J. Shen, G. Zhou, Y. Miao, P. Li, Z. Ou, Y. Chen, Z. Wang, R. Luan, H. Sun, Z. Feng, X. Yong, Y. Li, L. Xu, W. Lv, Z. Nie, H. Wang, H. Huang, Y.-J. Sun, Q.-K. Xue, J. He, and Z. Chen, Nodeless superconduct- ing gap and electron-boson coupling in (la,pr,sm) 3ni2o7 films, arXiv:2502.17831 (2025). [57] W. Sun, Z. Jiang, B. Hao, S. Yan, H. Zhang, M. Wang, Y. Yang, H. Sun, Z. Liu, D. Ji, Z. Gu, J. Zhou, D. Shen, D. Feng, and Y. Nie, Observation of superconductivity- induced leading-edge gap in sr-doped La 3Ni2O7 thin films, arXiv:2507.07409 (2025). [58] L. Bhatt, A. Y. Jiang, E. K. Ko, N. Schnitzer, G. A. Pan, D. F. Segedin, Y. Liu, Y. Yu, Y.-F. Zhao, E."},{"citing_arxiv_id":"2604.18385","ref_index":146,"ref_count":1,"confidence":0.9,"is_internal_anchor":true,"paper_title":"Superconductivity in Ruddlesden-Popper nickelates: a review of recent progress, focusing on thin films","primary_cat":"cond-mat.supr-con","submitted_at":"2026-04-20T15:08:57+00:00","verdict":"UNVERDICTED","verdict_confidence":"LOW","novelty_score":2.0,"formal_verification":"none","one_line_summary":"The review covers experimental and theoretical progress on superconductivity in Ruddlesden-Popper nickelates, emphasizing ambient-pressure thin-film results in La3Ni2O7.","context_count":1,"top_context_role":"background","top_context_polarity":"background","context_text":"that to unveil the entire Fermi surface, results combining photons with different incoming energies are needed. In particular, the 153 eV photons are crucial for the γ-band-like features near the M point. Symmetry of the order parameter Regarding the symmetry of the pairing order parameter, an ARPES study on superconducting bilayer (La,Pr,Sm)3Ni2O7 thin films grown on LSAO at ambient pressure (T c ∼46 K [146]) was interpreted as showing the absence of nodes at the Fermi surface. The LDOS exhibits a V-shaped profile (Fig. 14(a)), which might suggest nodes as in ad-wave gap. However, with a more detailed analysis of the data, Fig. 14(b) shows no nodes. Thus, it displays a nonzero gap in the studied range of theβandγportions of the Fermi surface. Given the two dominant theoretical frameworks for"},{"citing_arxiv_id":"2604.14701","ref_index":33,"ref_count":1,"confidence":0.9,"is_internal_anchor":true,"paper_title":"Interlayer hybridization enables superconductivity in bilayer nickelates","primary_cat":"cond-mat.supr-con","submitted_at":"2026-04-16T07:08:34+00:00","verdict":"UNVERDICTED","verdict_confidence":"LOW","novelty_score":6.0,"formal_verification":"none","one_line_summary":"Superconductivity in bilayer nickelates emerges only when coherent interlayer d_z2-p_z-d_z2 hybridization develops, suppressing static spin-density-wave order and damping spin excitations.","context_count":0,"top_context_role":null,"top_context_polarity":null,"context_text":null},{"citing_arxiv_id":"2604.08430","ref_index":21,"ref_count":1,"confidence":0.9,"is_internal_anchor":true,"paper_title":"Three-Dimensional Electronic Structures in Superconducting Ruddlesden-Popper Bilayer Nickelate Films","primary_cat":"cond-mat.supr-con","submitted_at":"2026-04-09T16:33:48+00:00","verdict":"UNVERDICTED","verdict_confidence":"LOW","novelty_score":6.0,"formal_verification":"none","one_line_summary":"ARPES on (La,Pr,Sm)3Ni2O7 films reveals quasi-2D dx2-y2 bands, finite kz dispersion on dz2 bands, and a superconducting gap of ~18 meV with 2Δ/kBTc ~8 on the dz2-derived band.","context_count":0,"top_context_role":null,"top_context_polarity":null,"context_text":null},{"citing_arxiv_id":"2604.08319","ref_index":50,"ref_count":1,"confidence":0.9,"is_internal_anchor":true,"paper_title":"Orbital-Selective $d$-wave Superconductivity in the Two-Band $t$-$J$ Model: Possible Applications to La$_3$Ni$_2$O$_7$","primary_cat":"cond-mat.str-el","submitted_at":"2026-04-09T14:52:35+00:00","verdict":"UNVERDICTED","verdict_confidence":"LOW","novelty_score":7.0,"formal_verification":"none","one_line_summary":"Orbital-selective d-wave superconductivity arises exclusively from the itinerant orbital in the two-band t-J model, suppressed by local inter-orbital bound states from the quasi-localized orbital.","context_count":0,"top_context_role":null,"top_context_polarity":null,"context_text":null},{"citing_arxiv_id":"2604.07807","ref_index":27,"ref_count":1,"confidence":0.9,"is_internal_anchor":true,"paper_title":"Granular Superconductivity in La$_{2}$PrNi$_{2}$O$_{7-\\delta}$ Thin Films","primary_cat":"cond-mat.supr-con","submitted_at":"2026-04-09T05:04:24+00:00","verdict":"UNVERDICTED","verdict_confidence":"LOW","novelty_score":5.0,"formal_verification":"none","one_line_summary":"The two-step resistive transition in La2PrNi2O7-δ thin films arises from granular superconductivity involving two distinct grain phases coupled by a Josephson junction network.","context_count":0,"top_context_role":null,"top_context_polarity":null,"context_text":null},{"citing_arxiv_id":"2604.07185","ref_index":23,"ref_count":1,"confidence":0.9,"is_internal_anchor":true,"paper_title":"Perpendicular electric field induced $s^\\pm$-wave to $d$-wave superconducting transition in thin film La$_3$Ni$_2$O$_7$","primary_cat":"cond-mat.supr-con","submitted_at":"2026-04-08T15:12:59+00:00","verdict":"UNVERDICTED","verdict_confidence":"LOW","novelty_score":6.0,"formal_verification":"none","one_line_summary":"A perpendicular electric field induces a transition from s±-wave to d-wave superconductivity in the bilayer Hubbard model for La3Ni2O7, with d-wave pairing exhibiting dome-like behavior.","context_count":0,"top_context_role":null,"top_context_polarity":null,"context_text":null},{"citing_arxiv_id":"2604.05590","ref_index":92,"ref_count":1,"confidence":0.9,"is_internal_anchor":true,"paper_title":"Tunable superconductivity and spin density wave in La3Ni2O7/LaAlO3 thin films","primary_cat":"cond-mat.supr-con","submitted_at":"2026-04-07T08:35:35+00:00","verdict":"UNVERDICTED","verdict_confidence":"LOW","novelty_score":6.0,"formal_verification":"none","one_line_summary":"Varying the Ni-Ni interlayer distance switches La3Ni2O7/LaAlO3 films between C-type and G-type spin density waves, with s± superconductivity emerging in between.","context_count":1,"top_context_role":"background","top_context_polarity":"support","context_text":"fusion into La 3Ni2O7 causes an effective doping of 0 . 2 ∗ These authors contributed equally to this work. † Contact author: hylu@qfnu.edu.cn ‡ Contact author: dawang@nju.edu.cn § Contact author: qhwang@nju.edu.cn holes per nickel in La 3Ni2O7. Angle-resolved photo- emission and scanning tunneling microscopy results sup- port s-wave pairing symmetry in (La,Pr) 3Ni2O7 films [ 85, 91]. Theoretically [ 92], it is predicted that Tc can be enhanced further by (i) a reduction of the charge transfer toward the nominal electron filling in the nickel layers, and (ii) an increase of the compressive strain (namely, smaller a) or increase of c. The pathway (i) turns out to be consistent with the much higher Tc in the La 3Ni2O7/La2NiO4/SrLaAlO4 thin film [ 93], where"},{"citing_arxiv_id":"2604.04421","ref_index":17,"ref_count":1,"confidence":0.9,"is_internal_anchor":true,"paper_title":"Multimodal Terahertz Spectroscopy of the Pairing Symmetry and Normal-State Pseudogap in (La,Pr)$_3$Ni$_2$O$_7$ Films","primary_cat":"cond-mat.supr-con","submitted_at":"2026-04-06T04:59:13+00:00","verdict":"UNVERDICTED","verdict_confidence":"LOW","novelty_score":6.0,"formal_verification":"none","one_line_summary":"Terahertz spectroscopy on (La,Pr)3Ni2O7 films indicates disordered s±-wave pairing in the superconducting state and a distinct normal-state pseudogap above Tc onset.","context_count":0,"top_context_role":null,"top_context_polarity":null,"context_text":null},{"citing_arxiv_id":"2604.02191","ref_index":64,"ref_count":1,"confidence":0.9,"is_internal_anchor":true,"paper_title":"Jahn-Teller distortion on strained La$_3$Ni$_2$O$_7$ thin films","primary_cat":"cond-mat.supr-con","submitted_at":"2026-04-02T15:49:14+00:00","verdict":"UNVERDICTED","verdict_confidence":"LOW","novelty_score":4.0,"formal_verification":"none","one_line_summary":"Compressive strain enhances Jahn-Teller splitting Δ_JT in La3Ni2O7 films as the key microscopic tuning parameter for superconductivity, matching ARPES and Hall data on specific substrates.","context_count":1,"top_context_role":"background","top_context_polarity":"background","context_text":"Kuo, J.-S. Lee, B. H. Goodge, D. A. Muller, Z.-X. Shen, S. Raghu, H. Y . Hwang, and Y . Yu, (2026), arXiv:2603.12196 [cond-mat]. [63] J. Shen, Y . Miao, Z. Ou, G. Zhou, Y . Chen, R. Luan, H. Sun, Z. Feng, X. Yong, P. Li, Y . Li, L. Xu, W. Lv, Z. Nie, H. Wang, H. Huang, Y .-J. Sun, Q.-K. Xue, Z. Chen, and J. He, (2025), arXiv:2502.17831 [cond-mat]. [64] M. Wang, B. Hao, W. Sun, S. Yan, S. Sun, H. Zhang, Z. Gu, and Y . Nie, Physical Review Letters136, 066002 (2026). [65] S. Fan, M. Ou, M. Scholten, Q. Li, Z. Shang, Y . Wang, J. Xu, H. Yang, I. M. Eremin, and H.-H. Wen, (2025), arXiv:2506.01788 [cond-mat]. [66] W. Lyu, Z. Nie, H. Wang, Y . Chen, H. Huang, G. Zhou, Q. Xue, and Z. Chen, Acta Phys. Sin."},{"citing_arxiv_id":"2603.14519","ref_index":145,"ref_count":4,"confidence":0.9,"is_internal_anchor":true,"paper_title":"A Unified Understanding of the Experimental Controlling of the T$_\\text{c}$ of La$_3$Ni$_2$O$_7$","primary_cat":"cond-mat.supr-con","submitted_at":"2026-03-15T17:56:47+00:00","verdict":"UNVERDICTED","verdict_confidence":"LOW","novelty_score":5.0,"formal_verification":"none","one_line_summary":"A d_x2-y2 orbital bilayer t-J model with first-principles parameters unifies experimental Tc controls in La3Ni2O7 via particle-hole asymmetry and J_perp dependence, proposing electron doping to enhance Tc.","context_count":2,"top_context_role":"background","top_context_polarity":"support","context_text":"algebraic decay, and the decay exponentK SC decreases but is always greater than 2.5, suggesting a lack of SC or weak SC. zone diagonal direction is very weak, leading to a near node on theβ-pocket [38, 47]. Recent angle-resolved- photoemission-spectrum observations for the La 3Ni2O7 thin film suggest that the gap amplitude along the diag- onal direction is obviously nonzero [145], supporting our strong-coupling theories. In conclusion, based on our minimald x2−y2-orbital bi- layert−J ⊥ model, we have provided a unified under- standing toward the series of experiments which control Tc through tuning the environment conditions. The key point lies in that the near quarter filling of thed x2−y2- orbital makes the system analogous to the hole-doped"},{"citing_arxiv_id":"2510.19406","ref_index":21,"ref_count":1,"confidence":0.9,"is_internal_anchor":true,"paper_title":"Pairing Symmetry Crossover from $d$-wave to $s_{\\pm}$-wave in a Bilayer Nickelate Driven by Hund's Coupling and Crystal Field Splitting","primary_cat":"cond-mat.str-el","submitted_at":"2025-10-22T09:24:34+00:00","verdict":"UNVERDICTED","verdict_confidence":"LOW","novelty_score":5.0,"formal_verification":"none","one_line_summary":"Constrained-path QMC simulations of a bilayer Hubbard model map a crossover from d-wave to s±-wave pairing driven by Hund's coupling and crystal field splitting in La3Ni2O7.","context_count":0,"top_context_role":null,"top_context_polarity":null,"context_text":null},{"citing_arxiv_id":"2507.13694","ref_index":112,"ref_count":1,"confidence":0.9,"is_internal_anchor":true,"paper_title":"Strain-Engineered Electronic Structure and Superconductivity in La$_3$Ni$_2$O$_7$ Thin Films","primary_cat":"cond-mat.supr-con","submitted_at":"2025-07-18T06:51:12+00:00","verdict":"UNVERDICTED","verdict_confidence":"LOW","novelty_score":5.0,"formal_verification":"none","one_line_summary":"DFT-based tight-binding models and FRG calculations predict that reducing in-plane lattice constant or increasing out-of-plane constant in La3Ni2O7 films increases Fermi-level DOS and enhances Tc while preserving s± pairing.","context_count":1,"top_context_role":"background","top_context_polarity":"background","context_text":"δ is the hopping matrix element between the a orbital on site i and the b orbital on site i + δ, σ repre- sents spin, and εa is the on-site energy of the a-orbital. For simplicity, we use x and z to denote 3 dx2−y2 and 3d3z2−r2 orbitals, respectively. The full DFT bands and comparisons with the Wannier bands are shown in Sup- plemental Material (SM) [112]. All the tight-binding pa- rameters are listed in Table S1 and S2 [112] for the two films, respectively. The tight-binding band structures of LPNO and LNO films under different compression ratio ϵ are presented in Fig. 1(a) and Fig. 1(b), respectively. The Fermi energy corresponds to 1.25 electrons per Ni atom (labeled by n). As a comparison, the band structures of the bulk LNO"},{"citing_arxiv_id":"2506.20497","ref_index":45,"ref_count":1,"confidence":0.9,"is_internal_anchor":true,"paper_title":"Theoretical study on ambient pressure superconductivity in La$_3$Ni$_2$O$_7$ thin films : structural analysis, model construction, and robustness of $s\\pm$-wave pairing","primary_cat":"cond-mat.supr-con","submitted_at":"2025-06-25T14:44:01+00:00","verdict":null,"verdict_confidence":null,"novelty_score":null,"formal_verification":null,"one_line_summary":null,"context_count":0,"top_context_role":null,"top_context_polarity":null,"context_text":null}],"limit":50,"offset":0}