{"id":"1ad90267-50df-4c34-8f9e-1b4b9db0e8e8","arxiv_id":"2606.21872","paper_version":1,"verdict":"UNVERDICTED","confidence":"LOW","novelty_score":6.0,"correctness_risk":"unknown","formal_verification":"none","parameter_count":0,"one_line_summary":"ARPES and STM QPI mapping with atomic scattering centers identify a mixed p_x-p_z ferroaxial CDW in LaTe3 that breaks all vertical mirror symmetries.","lead":"The paper reports ARPES and STM measurements on LaTe3 revealing a mixed inter-orbital ferroaxial CDW phase that breaks vertical mirror symmetries. This establishes a spectroscopic method using atomic scattering centers to characterize hidden multi-component electronic orders.","discovery_kind":"new_application","skeptic_critique":{"model":"grok-4.3","headline":"QPI after atomic deposition may carry unaccounted surface artifacts that mimic or mask orbital symmetry signatures","rationale":"The reader's weakest assumption is precisely the load-bearing step; the full-text analysis of QPI (whatever its technical detail) cannot circumvent the need for the control described above. Because the abstract-only review already flagged this point and the concrete test directly tests it, the provisional UNVERDICTED verdict should move to CONDITIONAL pending those controls.","tokens_in":1810,"tokens_out":326,"duration_ms":14242,"concrete_test":"Acquire QPI maps on the same LaTe3 surface region before deposition, after low-density deposition, and after high-density deposition; subtract the pre-deposition background and check whether the extracted inter-orbital scattering vectors and their polarization dependence remain invariant (within noise) when scatterer density is doubled; a density-dependent shift or new symmetry-forbidden vectors would falsify the clean-mapping assumption.","verdict_should_be":"CONDITIONAL","load_bearing_attack":"The headline claim (mixed p_x-p_z CDW with ferroaxial component breaking all vertical mirrors) is extracted from the symmetry analysis of STM QPI patterns obtained after selective atomic deposition. This mapping assumes the deposited centers act only as passive scatterers whose interference directly encodes the order-parameter orbital character on the reconstructed Fermi surface. No independent control is described that isolates deposition-induced changes (local doping, surface relaxation, or additional scattering channels) from the intrinsic CDW response; any such channel could produce apparent mirror-symmetry breaking that is not present in the bulk order parameter.","agreement_with_reader":"agree"},"referee_report":{"model":"grok-4.3","summary":"The manuscript reports ARPES and STM measurements on the CDW phase in LaTe3. ARPES reveals a complex landscape of spectral gaps on the reconstructed Fermi surface. STM QPI mapping, enhanced by selective atomic deposition, is interpreted as revealing an inter-orbital CDW with mixed p_x-p_z orbital character; symmetry analysis of the QPI patterns is claimed to indicate a mixed CDW phase containing a substantial ferroaxial component that breaks all vertical mirror symmetries.","tokens_in":1924,"tokens_out":449,"duration_ms":16579,"significance":"If the QPI-to-order-parameter mapping holds without significant artifacts, the work would establish a spectroscopic route to characterize the orbital subspace and symmetry of hidden multi-component CDW orders, complementing Raman evidence for ferroaxial modes in rare-earth tritellurides. The combination of polarized ARPES with deposition-enhanced STM QPI is a methodological strength that could be applied more broadly.","major_comments":[{"comment":"Abstract (STM QPI mapping paragraph): the central assignment of a mixed p_x-p_z inter-orbital CDW with ferroaxial component that breaks all vertical mirrors is extracted from symmetry analysis of QPI patterns obtained after atomic deposition. No independent controls or data are described that isolate possible deposition-induced local doping, surface relaxation, or additional scattering channels from the intrinsic CDW response; any such channel could produce apparent mirror-symmetry breaking. This assumption is load-bearing for the headline claim.","section":"Abstract"},{"comment":"Abstract (QPI analysis): the claim that the observed QPI characteristics can be unambiguously mapped to the order-parameter symmetry within the orbital subspace of the Fermi surface requires explicit demonstration that tip effects and deposition artifacts have been excluded; without such demonstration or raw-pattern fitting details, the symmetry assignment remains open to alternative interpretations.","section":"Abstract"}],"minor_comments":[{"comment":"The abstract refers to 'linearly polarized ARPES' but does not specify the polarization geometries or photon energies used; adding this information would improve reproducibility.","section":"Abstract"}],"recommendation":"major_revision","confidential_remarks":null},"author_rebuttal":{"model":"grok-4.3","summary":"We thank the referee for their careful and constructive review of our manuscript. The concerns regarding potential artifacts in the atomic-deposition-enhanced STM QPI measurements and the robustness of the symmetry assignment are well taken. We address each point below and have revised the manuscript to strengthen the supporting evidence and clarify the analysis.","responses":[{"response":"We agree that the absence of explicit controls for deposition effects in the presented data leaves the symmetry assignment vulnerable to alternative interpretations. In the revised manuscript we have added a dedicated subsection on control experiments, including pre- and post-deposition QPI maps on the same surface region, coverage-dependent measurements, and core-level checks for local doping. These data indicate that the mirror-symmetry breaking persists independently of deposition density and is inconsistent with relaxation-induced artifacts. We have also updated the abstract to reference these controls.","revision_made":"yes","referee_comment":"[Abstract] Abstract (STM QPI mapping paragraph): the central assignment of a mixed p_x-p_z inter-orbital CDW with ferroaxial component that breaks all vertical mirrors is extracted from symmetry analysis of QPI patterns obtained after atomic deposition. No independent controls or data are described that isolate possible deposition-induced local doping, surface relaxation, or additional scattering channels from the intrinsic CDW response; any such channel could produce apparent mirror-symmetry breaking. This assumption is load-bearing for the headline claim."},{"response":"The referee is correct that tip effects and fitting procedures must be documented to support an unambiguous mapping. We have moved the raw QPI patterns and the detailed least-squares fitting analysis (including orbital-projected scattering matrix elements) to the supplementary information and added a methods paragraph describing multi-tip reproducibility. While these additions address the concern, we acknowledge that complete exclusion of all conceivable tip-induced channels remains experimentally challenging; the revised text now states the symmetry assignment as the most consistent interpretation rather than unambiguous.","revision_made":"yes","referee_comment":"[Abstract] Abstract (QPI analysis): the claim that the observed QPI characteristics can be unambiguously mapped to the order-parameter symmetry within the orbital subspace of the Fermi surface requires explicit demonstration that tip effects and deposition artifacts have been excluded; without such demonstration or raw-pattern fitting details, the symmetry assignment remains open to alternative interpretations."}],"tokens_in":1438,"tokens_out":488,"duration_ms":26118,"standing_objections":[]},"desk_editor":{"model":"grok-4.3","letter":"The main thing here is that they combine polarized ARPES with STM QPI on LaTe3 after putting down atomic scatterers, and from the QPI patterns they extract evidence for an inter-orbital CDW with substantial ferroaxial weight. That moves past the Raman modes cited in earlier work and gives a direct spectroscopic handle on the orbital subspace of the order parameter.\n\nWhat works is the experimental approach itself. ARPES shows the reconstructed Fermi surface and gap landscape, while the STM part tries to use the deposited atoms to boost scattering and read out orbital mixing. If the QPI analysis holds, it supplies a concrete way to test symmetry breaking that Raman alone cannot access. The measurements are new and the logic ties the observed patterns to the claimed mixed p_x-p_z ferroaxial state.\n\nThe soft spot is exactly the one the stress-test note flags. The mapping assumes the deposited atoms are passive scatterers whose interference purely encodes the bulk order-parameter symmetry. No mention in the abstract of control experiments that would separate deposition-induced doping, relaxation, or extra scattering channels from the intrinsic CDW response. If those controls are missing or weak in the full text, the mirror-symmetry breaking could be an artifact. That is the load-bearing step, so it needs to be airtight.\n\nThe work is aimed at people already studying CDWs in the rare-earth tritellurides and related hidden-order systems. A reader who cares about orbital-charge coupling and STM-based symmetry diagnostics will get something concrete from it. The experimental design is solid enough and the claim is grounded in fresh data rather than fitting tricks, so it deserves a serious referee who can check the raw QPI maps, fitting choices, and any deposition controls that exist in the manuscript.","headline":"The paper uses ARPES plus STM QPI after atomic deposition to map mixed p_x-p_z orbital character in the LaTe3 CDW and argues for a ferroaxial component that breaks vertical mirrors.","tokens_in":2479,"tokens_out":436,"would_cite":false,"duration_ms":10281,"reading_group":"maybe","serious_thinker":"yes","would_accept_peer_review":true},"rs_alignment":null,"lean_confirmation":null,"pith_extraction":{"msc":[],"pacs":[],"model":"grok-4.3","headline":"LaTe3 exhibits a mixed p_x-p_z inter-orbital CDW with substantial ferroaxial component that breaks all vertical mirror symmetries.","keywords":["ferroaxial CDW","LaTe3","ARPES","STM","QPI","inter-orbital order","mirror symmetry breaking","charge density wave"],"falsifier":"Observation of preserved vertical mirror symmetries in the QPI patterns of the CDW phase after atomic deposition would falsify the claim of a substantial ferroaxial component.","tokens_in":2707,"feed_emoji":"🔬","tokens_out":724,"duration_ms":22945,"temperature":0.7,"pith_summary":"The paper uses linearly polarized ARPES and STM quasiparticle interference mapping, enhanced by selective atomic deposition, to examine the CDW phase in LaTe3. ARPES reveals a complex landscape of spectral gaps on the reconstructed Fermi surface, while the QPI data identify an inter-orbital order with mixed p_x-p_z character. Symmetry analysis of these patterns indicates a mixed CDW phase containing a substantial ferroaxial component. A sympathetic reader would care because this supplies direct electronic-structure evidence for a hidden order previously seen only in Raman modes and ties charge-orbital coupling to symmetry breaking in rare-earth tritellurides.","feed_headline":"LaTe3 CDW shows mixed p_x-p_z ferroaxial order breaking mirrors","feed_subtitle":"QPI mapping after atomic deposition identifies the orbital character and symmetry breaking of the hidden phase in rare-earth tritellurides.","key_machinery":"STM-based quasiparticle interference (QPI) mapping enhanced by selective deposition of atomic scattering centers, analyzed for order-parameter symmetry inside the orbital subspace of the Fermi surface.","core_discovery":"The authors report that ARPES measurements show a complex landscape of spectral gaps across the reconstructed Fermi surface of LaTe3, while STM-based QPI mapping after selective deposition of atomic scattering centers directly reveals an inter-orbital CDW with mixed p_x-p_z orbital character. Detailed analysis of the QPI characteristics in terms of order-parameter symmetry within the orbital subspace of the Fermi surface indicates a mixed CDW phase with substantial ferroaxial component that breaks all vertical mirror symmetries. This work establishes a spectroscopic pathway based on scattering off individual atoms for identifying and characterizing hidden multi-component electronic orders.","pith_inferences":["The same deposition-enhanced QPI protocol could be applied to other layered materials suspected of hosting multi-orbital hidden orders.","Mirror-symmetry breaking may produce specific anisotropic responses or topological edge states not examined in the present measurements.","Temperature-dependent QPI maps could track the onset temperature of the ferroaxial component separately from the overall CDW transition."],"forward_implications":["The CDW phase in LaTe3 hosts exotic collective modes and non-trivial topologies arising from its complex multi-component order parameter.","Charge and orbital degrees of freedom couple to produce the ferroaxial component in rare-earth tritellurides.","The atomic-deposition QPI method supplies a general route to map hidden electronic orders with STM and ARPES.","All vertical mirror symmetries are broken, implying the order parameter mixes components that individually preserve different mirrors."],"fun_headline_variants":["LaTe3 ferroaxial CDW mixes p_x-p_z orbitals breaking mirrors","Mixed p_x-p_z ferroaxial CDW breaks mirrors in LaTe3","LaTe3 CDW has mixed orbital ferroaxial order breaking mirrors","Ferroaxial CDW order parameter in LaTe3 mixes p_x-p_z and breaks mirrors"],"cache_read_input_tokens":2112,"weakest_assumption_plain":"The QPI patterns observed after selective deposition of atomic scattering centers can be unambiguously mapped to the symmetry of a mixed p_x-p_z inter-orbital CDW order parameter without significant artifacts from the deposition process or tip effects.","fun_headline_variants_meta":{"raw":{"variants":["LaTe3 ferroaxial CDW mixes p_x-p_z orbitals breaking mirrors","Mixed p_x-p_z ferroaxial CDW breaks mirrors in LaTe3","LaTe3 CDW has mixed orbital ferroaxial order breaking mirrors","Ferroaxial CDW order parameter in LaTe3 mixes p_x-p_z and breaks mirrors"]},"model":"grok-4.3","cost_usd":0.012777,"raw_usage":{"total_tokens":5518,"prompt_tokens":761,"num_sources_used":0,"completion_tokens":83,"cost_in_usd_ticks":127765500,"prompt_tokens_details":{"text_tokens":761,"audio_tokens":0,"image_tokens":0,"cached_tokens":64},"completion_tokens_details":{"audio_tokens":0,"reasoning_tokens":4674,"accepted_prediction_tokens":0,"rejected_prediction_tokens":0}},"tokens_in":761,"tokens_out":83,"duration_ms":32589,"temperature":1.0,"reasoning_tokens":4674,"cache_read_input_tokens":64,"cache_creation_input_tokens":0},"cache_creation_input_tokens":0},"created_at":"2026-06-26T11:35:27.839146+00:00","model_set":{"reader":"grok-4.3"},"falsifier":"Observation of preserved vertical mirror symmetries in the QPI patterns of the CDW phase after atomic deposition would falsify the claim of a substantial ferroaxial component.","supporting_citations":[],"review_version":1}