Triple

T2173646
Position Surface form Disambiguated ID Type / Status
Subject Brillouin zone E48477 entity
Predicate usedToExplain P3638 FINISHED
Object Umklapp scattering
Umklapp scattering is a momentum-relaxing process in crystals where phonon or electron scattering transfers crystal momentum by a reciprocal lattice vector, playing a key role in limiting thermal and electrical conductivity at higher temperatures.
E243118 NE FINISHED

How this triple was built (4 steps)

Every LLM step that produced this triple, in pipeline order — named-entity classification, the disambiguation choices (the exact options shown, with the pick highlighted), and the generated description. The batch + timestamp of each is in the Provenance table below.

NER Named-entity recognition gpt-5-mini
Instruction
Given a phrase, classify it is english named entity (e.g., persons, organizations, works of art) in Latin script, or not (e.g., literals, dates, URLs, verbose phrases). For disambiguation, the statement where the phrase occurs as object is also given. Please return a JSON object with `phrase` (string, the phrase being analyzed) and `is_ne` (boolean, indicating whether the phrase is a Named Entity).
Input
Phrase: Umklapp scattering | Statement: [Brillouin zone, usedToExplain, Umklapp scattering]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Umklapp scattering
Context triple: [Brillouin zone, usedToExplain, Umklapp scattering]
  • A. Peierls transition
    The Peierls transition is a phase transition in one-dimensional metals where a periodic lattice distortion opens an energy gap at the Fermi surface, turning the system from a metal into an insulator or semiconductor.
  • B. Mott transition
    The Mott transition is a metal–insulator transition in strongly correlated electron systems, where electron–electron interactions drive a material from conducting to insulating behavior without a change in its crystal structure.
  • C. Anderson localization
    Anderson localization is a quantum mechanical phenomenon in which disorder in a material causes electrons or waves to become spatially localized, preventing them from diffusing freely.
  • D. Peierls substitution
    Peierls substitution is a quantum mechanical method for incorporating the effects of an external electromagnetic field into the momentum of charged particles in lattice or solid-state systems.
  • E. Fermi surface
    The Fermi surface is the boundary in momentum space separating occupied from unoccupied electron states at zero temperature, crucial for determining a metal’s electronic and superconducting properties.
  • F. None of above. chosen
  • G. Unsure - the case is ambiguous/there is not enough information to decide.
NEDg Description generation gpt-5.1
Instruction
Generate a one-sentence description of the target entity. 
You are given a context triple in the form (subject, predicate, object), where the object is the target entity. 
# Instructions
Use the triple to infer relevant information about the entity. Describe the entity based on what is most defining, well-known. 
Avoid repeating the information from the triple, unless really essential.
# Response Format
Return only the sentence: "Description: [one-sentence description of the target entity]"
Input
Entity: Umklapp scattering
Triple: [Brillouin zone, usedToExplain, Umklapp scattering]
Generated description
Umklapp scattering is a momentum-relaxing process in crystals where phonon or electron scattering transfers crystal momentum by a reciprocal lattice vector, playing a key role in limiting thermal and electrical conductivity at higher temperatures.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Umklapp scattering
Target entity description: Umklapp scattering is a momentum-relaxing process in crystals where phonon or electron scattering transfers crystal momentum by a reciprocal lattice vector, playing a key role in limiting thermal and electrical conductivity at higher temperatures.
  • A. Peierls transition
    The Peierls transition is a phase transition in one-dimensional metals where a periodic lattice distortion opens an energy gap at the Fermi surface, turning the system from a metal into an insulator or semiconductor.
  • B. Mott transition
    The Mott transition is a metal–insulator transition in strongly correlated electron systems, where electron–electron interactions drive a material from conducting to insulating behavior without a change in its crystal structure.
  • C. Anderson localization
    Anderson localization is a quantum mechanical phenomenon in which disorder in a material causes electrons or waves to become spatially localized, preventing them from diffusing freely.
  • D. Peierls substitution
    Peierls substitution is a quantum mechanical method for incorporating the effects of an external electromagnetic field into the momentum of charged particles in lattice or solid-state systems.
  • E. Fermi surface
    The Fermi surface is the boundary in momentum space separating occupied from unoccupied electron states at zero temperature, crucial for determining a metal’s electronic and superconducting properties.
  • F. None of above. chosen

Provenance (5 batches)

The batch behind each pipeline step, in order, with when it ran. Timestamps are batch-level — stages were processed in waves, so the object chain (NER → NED1 → NEDg → NED2) reads in order, but predicate / elicitation batches can sit in a different wave.

Step Stage Batch ID Status When
creating Elicitation batch_69a88aa3faa48190995b233af6525815 completed March 4, 2026, 7:40 p.m.
NER Named-entity recognition batch_69abbecb97a48190834e3e536184bbd1 completed March 7, 2026, 5:59 a.m.
NED1 Entity disambiguation (via context triple) batch_69ae5d9c61448190930777bcf2028882 completed March 9, 2026, 5:41 a.m.
NEDg Description generation batch_69ae5e1ea6108190b22ead618d620613 completed March 9, 2026, 5:43 a.m.
NED2 Entity disambiguation (via description) batch_69ae5ea7909c8190a93d87a5d07b84d4 completed March 9, 2026, 5:46 a.m.
Created at: March 4, 2026, 7:45 p.m.