Thermal spike effect in sputtering of porous germanium to form surface pattern by high energy heavy ions irradiation

Hooda, Sonu; Khan, S. A.; Kanjilal, D.; Kabiraj, D.; Satpati, B.

doi:10.1063/1.4950710

Title: Thermal spike effect in sputtering of porous germanium to form surface pattern by high energy heavy ions irradiation

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Abstract

Germanium exhibits a remarkable effect when subjected to high energy heavy ions irradiation. A synergic effect of high electronic energy loss (S{sub e} = 16.4 keV nm{sup −1}) and nuclear energy loss (S{sub n} = 0.1 keV nm{sup −1}) of 100 MeV Ag ions irradiation in Ge is presented. The results show that crystalline Ge is insensitive to the ionizing part of energy loss whereas thermal spike generated in the damaged Ge leads to the formation of porous structure. Further, an unusual high sputtering of the porous structure opens up the sub-surface voids to show the surface pattern. We explore the role of electron and phonon confinement to explain this effect.

Authors:

Hooda, Sonu; Khan, S. A.; Kanjilal, D.; Kabiraj, D. ^[1]; Satpati, B. ^[2]

Inter-University Accelerator Centre, Aruna Asaf Ali Marg, New Delhi 110067 (India)
Saha Institute of Nuclear Physics, 1/AF, Bidhannagar, Kolkata 700064 (India)

Publication Date:: Mon May 16 00:00:00 EDT 2016

OSTI Identifier:: 22591729

Resource Type:: Journal Article

Journal Name:: Applied Physics Letters

Additional Journal Information:: Journal Volume: 108; Journal Issue: 20; Other Information: (c) 2016 Author(s); Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0003-6951

Country of Publication:: United States

Language:: English

Subject:: 75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; CONFINEMENT; DAMAGE; ENERGY LOSSES; GERMANIUM; HEAVY IONS; IRRADIATION; KEV RANGE; MEV RANGE 100-1000; NUCLEAR ENERGY; PHONONS; POROUS MATERIALS; SILVER IONS; SPUTTERING; SURFACES; THERMAL SPIKES; VOIDS

Citation Formats


                    Hooda, Sonu, Khan, S. A., Kanjilal, D., Kabiraj, D., and Satpati, B. Thermal spike effect in sputtering of porous germanium to form surface pattern by high energy heavy ions irradiation.  United States: N. p., 2016. 
        Web.  doi:10.1063/1.4950710.

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                    Hooda, Sonu, Khan, S. A., Kanjilal, D., Kabiraj, D., & Satpati, B. Thermal spike effect in sputtering of porous germanium to form surface pattern by high energy heavy ions irradiation.  United States.  https://doi.org/10.1063/1.4950710

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                    Hooda, Sonu, Khan, S. A., Kanjilal, D., Kabiraj, D., and Satpati, B. 2016.  
        "Thermal spike effect in sputtering of porous germanium to form surface pattern by high energy heavy ions irradiation".  United States.  https://doi.org/10.1063/1.4950710.

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@article{osti_22591729,

  title        = {Thermal spike effect in sputtering of porous germanium to form surface pattern by high energy heavy ions irradiation},

  author       = {Hooda, Sonu and Khan, S. A. and Kanjilal, D. and Kabiraj, D. and Satpati, B.},

  abstractNote = {Germanium exhibits a remarkable effect when subjected to high energy heavy ions irradiation. A synergic effect of high electronic energy loss (S{sub e} = 16.4 keV nm{sup −1}) and nuclear energy loss (S{sub n} = 0.1 keV nm{sup −1}) of 100 MeV Ag ions irradiation in Ge is presented. The results show that crystalline Ge is insensitive to the ionizing part of energy loss whereas thermal spike generated in the damaged Ge leads to the formation of porous structure. Further, an unusual high sputtering of the porous structure opens up the sub-surface voids to show the surface pattern. We explore the role of electron and phonon confinement to explain this effect.},

  doi          = {10.1063/1.4950710},

  url          = {https://www.osti.gov/biblio/22591729},
  journal      = {Applied Physics Letters},

  issn         = {0003-6951},

  number       = 20,

  volume       = 108,

  place        = {United States},

  year         = {Mon May 16 00:00:00 EDT 2016},

  month        = {Mon May 16 00:00:00 EDT 2016}

}

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