Observation of Macroscopic Nonlocal Voltage at Room Temperature
Fuente:
arXiv
Salvato in:
| Autori principali: | , , , , , , , , , , , , , , , |
|---|---|
| Natura: | Preprint |
| Pubblicazione: |
2025
|
| Soggetti: | |
| Accesso online: | |
| Tags: |
Aggiungi Tag
Nessun Tag, puoi essere il primo ad aggiungerne!!
|
| _version_ | 1866915941065949184 |
|---|---|
| author | Jeon, Jae Ho Na, Hong Ryeol Jerng, Sahng-Kyoon Kwon, Seyoung Park, Sungkyun Choe, Kang Rok Kim, Jun Sung Kim, Heeju Kim, Gunn Ji, Sangmin Yoon, Taegeun Song, Young Jae Wulferding, Dirk Kim, Jeong Noh, Hwayong Chun, Seung-Hyun |
| author_facet | Jeon, Jae Ho Na, Hong Ryeol Jerng, Sahng-Kyoon Kwon, Seyoung Park, Sungkyun Choe, Kang Rok Kim, Jun Sung Kim, Heeju Kim, Gunn Ji, Sangmin Yoon, Taegeun Song, Young Jae Wulferding, Dirk Kim, Jeong Noh, Hwayong Chun, Seung-Hyun |
| contents | Electrons in conductors suffer frequent scatterings with defects and phonons, and the diffusive macroscopic behaviors are determined by an external electric field through Ohms law. If electrons are no longer diffusive, the Ohmic description collapses. In devices composed of thin chalcogenides and YBa2Cu3O7, we observe a transition from an Ohmic conductor to a nonlocal conductor below a certain temperature. The nonlocal conductor is characterized by significant nonlocal voltages (~0.1 V) across macroscopic regions (~1 mm) that are conventionally considered to be equipotential. Nonlinear responses are an additional characteristic. Negative local resistances in a vicinal geometry support macroscopic hydrodynamic flow as the underlying mechanism, implying electron momentum conservation over incredibly long distances. This new conduction state, observable at room temperature, opens the field of nonlocal electronics and low-dissipation applications. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2507_06548 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Observation of Macroscopic Nonlocal Voltage at Room Temperature Jeon, Jae Ho Na, Hong Ryeol Jerng, Sahng-Kyoon Kwon, Seyoung Park, Sungkyun Choe, Kang Rok Kim, Jun Sung Kim, Heeju Kim, Gunn Ji, Sangmin Yoon, Taegeun Song, Young Jae Wulferding, Dirk Kim, Jeong Noh, Hwayong Chun, Seung-Hyun Strongly Correlated Electrons Electrons in conductors suffer frequent scatterings with defects and phonons, and the diffusive macroscopic behaviors are determined by an external electric field through Ohms law. If electrons are no longer diffusive, the Ohmic description collapses. In devices composed of thin chalcogenides and YBa2Cu3O7, we observe a transition from an Ohmic conductor to a nonlocal conductor below a certain temperature. The nonlocal conductor is characterized by significant nonlocal voltages (~0.1 V) across macroscopic regions (~1 mm) that are conventionally considered to be equipotential. Nonlinear responses are an additional characteristic. Negative local resistances in a vicinal geometry support macroscopic hydrodynamic flow as the underlying mechanism, implying electron momentum conservation over incredibly long distances. This new conduction state, observable at room temperature, opens the field of nonlocal electronics and low-dissipation applications. |
| title | Observation of Macroscopic Nonlocal Voltage at Room Temperature |
| topic | Strongly Correlated Electrons |
| url | https://arxiv.org/abs/2507.06548 |