Thermal Relaxation in Titanium Nanowires: Signatures of Inelastic Electron-Boundary Scattering in Heat Transfer

Teemu Elo; Pasi Lähteenmäki; Dmitri Golubev; Alexander Savin; Konstantin Arutyunov; Pertti Hakonen

doi:10.1007/s10909-017-1802-2

Thermal Relaxation in Titanium Nanowires: Signatures of Inelastic Electron-Boundary Scattering in Heat Transfer

Teemu Elo, Pasi Lähteenmäki, Dmitri Golubev, Alexander Savin, Konstantin Arutyunov, Pertti Hakonen^*

^*Tämän työn vastaava kirjoittaja

Tutkimustuotos: Lehtiartikkeli › Article › Scientific › vertaisarvioitu

9 Sitaatiot (Scopus)

136 Lataukset (Pure)

Abstrakti

We have employed noise thermometry for investigations of thermal relaxation between the electrons and the substrate in nanowires patterned from 40-nm-thick titanium film on top of silicon wafers covered by a native oxide. By controlling the electronic temperature (Formula presented.) by Joule heating at the base temperature of a dilution refrigerator, we probe the electron–phonon coupling and the thermal boundary resistance at temperatures (Formula presented.)–3 K. Using a regular (Formula presented.)-dependent electron–phonon coupling of clean metals and a (Formula presented.)-dependent interfacial heat flow, we deduce a small contribution for the direct energy transfer from the titanium electrons to the substrate phonons due to inelastic electron-boundary scattering.

Alkuperäiskieli	Englanti
Sivut	204–216
Sivumäärä	13
Julkaisu	Journal of Low Temperature Physics
Vuosikerta	189
Numero	3-4
DOI - pysyväislinkit	https://doi.org/10.1007/s10909-017-1802-2
Tila	Julkaistu - 16 elok. 2017
OKM-julkaisutyyppi	A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä

Pääsy asiakirjaan

10.1007/s10909-017-1802-2

Titanium_el_ph_resubmit_finAccepted author manuscript, 1,06 MB

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Link to publication in Scopus

QuDeT: Quantum devices in topological matter: carbon nanotubes, graphene, and novel superfluids
Thanniyil Sebastian, A. (Projektin jäsen), Todoshchenko, I. (Projektin jäsen), Hakonen, P. (Vastuullinen tutkija), Zavyalov, V. (Projektin jäsen), Häkkinen, P. (Projektin jäsen), Ervasti, M. (Projektin jäsen), Kirsanov, N. (Projektin jäsen), Sergeicheva, E. (Projektin jäsen), Kaikkonen, J.-P. (Projektin jäsen), Kamada, M. (Projektin jäsen), Manninen, J. (Projektin jäsen), Perelshtein, M. (Projektin jäsen), Tan, Z. (Projektin jäsen), Will, M. (Projektin jäsen), Song, X. (Projektin jäsen), Tong, F. (Projektin jäsen), Haque, M. (Projektin jäsen), Pandey, P. (Projektin jäsen), Lilja, I. (Projektin jäsen) & Kumar, M. (Projektin jäsen)
05/11/2015 → 31/12/2021
Projekti: EU: ERC grants
Matalien lämpötilojen kvantti-ilmiöiden ja komponenttien huippuyksikkö
Hakonen, P. (Vastuullinen tutkija), Kumar, M. (Projektin jäsen), Thanniyil Sebastian, A. (Projektin jäsen), Cox, D. (Projektin jäsen), Song, X. (Projektin jäsen), Kaikkonen, J.-P. (Projektin jäsen), Lähteenmäki, P. (Projektin jäsen) & Elo, T. (Projektin jäsen)
01/01/2015 → 31/12/2017
Projekti: Academy of Finland: Other research funding

OtaNano – Kylmälaboratorio
Savin, A. (Manager) & Rissanen, A. (Other)
OtaNano
Laitteistot/tilat: Facility

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@article{6a1701fa5d6b4363bcf4600bb494fbfe,

title = "Thermal Relaxation in Titanium Nanowires: Signatures of Inelastic Electron-Boundary Scattering in Heat Transfer",

abstract = "We have employed noise thermometry for investigations of thermal relaxation between the electrons and the substrate in nanowires patterned from 40-nm-thick titanium film on top of silicon wafers covered by a native oxide. By controlling the electronic temperature (Formula presented.) by Joule heating at the base temperature of a dilution refrigerator, we probe the electron–phonon coupling and the thermal boundary resistance at temperatures (Formula presented.)–3 K. Using a regular (Formula presented.)-dependent electron–phonon coupling of clean metals and a (Formula presented.)-dependent interfacial heat flow, we deduce a small contribution for the direct energy transfer from the titanium electrons to the substrate phonons due to inelastic electron-boundary scattering.",

keywords = "Electron-phonon coupling, Electronic Kapitza conductance, Kapitza resistance, Shot noise thermometry, Thermal contact, Thermal relaxation, Titanium",

author = "Teemu Elo and Pasi L{\"a}hteenm{\"a}ki and Dmitri Golubev and Alexander Savin and Konstantin Arutyunov and Pertti Hakonen",

note = "| openaire: EC/H2020/670743/EU//QuDeT",

year = "2017",

month = aug,

day = "16",

doi = "10.1007/s10909-017-1802-2",

language = "English",

volume = "189",

pages = "204–216",

journal = "Journal of Low Temperature Physics",

issn = "0022-2291",

publisher = "Springer",

number = "3-4",

}

TY - JOUR

T1 - Thermal Relaxation in Titanium Nanowires

T2 - Signatures of Inelastic Electron-Boundary Scattering in Heat Transfer

AU - Elo, Teemu

AU - Lähteenmäki, Pasi

AU - Golubev, Dmitri

AU - Savin, Alexander

AU - Arutyunov, Konstantin

AU - Hakonen, Pertti

N1 - | openaire: EC/H2020/670743/EU//QuDeT

PY - 2017/8/16

Y1 - 2017/8/16

N2 - We have employed noise thermometry for investigations of thermal relaxation between the electrons and the substrate in nanowires patterned from 40-nm-thick titanium film on top of silicon wafers covered by a native oxide. By controlling the electronic temperature (Formula presented.) by Joule heating at the base temperature of a dilution refrigerator, we probe the electron–phonon coupling and the thermal boundary resistance at temperatures (Formula presented.)–3 K. Using a regular (Formula presented.)-dependent electron–phonon coupling of clean metals and a (Formula presented.)-dependent interfacial heat flow, we deduce a small contribution for the direct energy transfer from the titanium electrons to the substrate phonons due to inelastic electron-boundary scattering.

AB - We have employed noise thermometry for investigations of thermal relaxation between the electrons and the substrate in nanowires patterned from 40-nm-thick titanium film on top of silicon wafers covered by a native oxide. By controlling the electronic temperature (Formula presented.) by Joule heating at the base temperature of a dilution refrigerator, we probe the electron–phonon coupling and the thermal boundary resistance at temperatures (Formula presented.)–3 K. Using a regular (Formula presented.)-dependent electron–phonon coupling of clean metals and a (Formula presented.)-dependent interfacial heat flow, we deduce a small contribution for the direct energy transfer from the titanium electrons to the substrate phonons due to inelastic electron-boundary scattering.

KW - Electron-phonon coupling

KW - Electronic Kapitza conductance

KW - Kapitza resistance

KW - Shot noise thermometry

KW - Thermal contact

KW - Thermal relaxation

KW - Titanium

UR - http://www.scopus.com/inward/record.url?scp=85027505774&partnerID=8YFLogxK

U2 - 10.1007/s10909-017-1802-2

DO - 10.1007/s10909-017-1802-2

M3 - Article

AN - SCOPUS:85027505774

SN - 0022-2291

VL - 189

SP - 204

EP - 216

JO - Journal of Low Temperature Physics

JF - Journal of Low Temperature Physics

IS - 3-4

ER -

Thermal Relaxation in Titanium Nanowires: Signatures of Inelastic Electron-Boundary Scattering in Heat Transfer

Abstrakti

Pääsy asiakirjaan

Muut tiedostot ja linkit

Sormenjälki

Projektit

QuDeT: Quantum devices in topological matter: carbon nanotubes, graphene, and novel superfluids

Matalien lämpötilojen kvantti-ilmiöiden ja komponenttien huippuyksikkö

Laitteet

OtaNano – Kylmälaboratorio

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