Mojtaba Ranjbar

Dr. Mojtaba Ranjbar


Research Focus & Metrics

Academic Career Length

15Years (2012-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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1 September 2018 in Plant Physiology and Biochemistry
Verified
Journal Article
Closed access
FKFatemeh Khakdan
Fatemeh Khakdan
HAHoushang Alizadeh
Houshang Alizadeh
MRMojtaba Ranjbar
Mojtaba Ranjbar

16 May 2020 in Applied Organometallic Chemistry
Verified
Journal Article
Closed access
PDF file
SRSomayeh Rahaiee
Somayeh Rahaiee
MRMojtaba Ranjbar
Mojtaba Ranjbar
HAHossein Azizi
Hossein Azizi
MGMostafa Govahi
Mostafa Govahi
MZMahboobeh Zare
Mahboobeh Zare


1 October 2015 in Low Temperature Physics
Verified
Journal Article
Closed access
SCSunjae Chung
Sunjae Chung
SMSeyed Majid Mohseni
Seyed Majid Mohseni
AEAnders Eklund
Anders Eklund
PDPhilipp Dürrenfeld
Philipp Dürrenfeld
MRMojtaba Ranjbar
Mojtaba Ranjbar
JÅJohan Åkerman
Johan Åkerman
We review the recent experimental advancements in the realization and understanding of magnetic droplet solitons generated by spin transfer torque in orthogonal nanocontact based spin torque nanooscillators (STNOs) fabricated on extended spin valves and spin valve nanowires. The magnetic droplets are detected and studied using the STNO microwave signal and its resistance, the latter both quasistatically and time-resolved. The droplet nucleation current is found to have a minimum at intermediate magnetic field strengths and the nature of the nucleation changes gradually from a single sharp step well above this field, mode-hopping around the minimum, and continuous at low fields. The mode-hopping and continuous transitions are ascribed to droplet drift instability and re-nucleation at different time scales, which is corroborated by time-resolved measurements. We argue that the use of tilted anisotropy fixed layers could reduce the nucleation current further, move the nucleation current minimum to lower fields, and potentially remove the need for an applied magnetic field altogether. Finally, evidence of an edge mode droplet in a nanowire is presented.

21 March 2022 in Journal of Biochemical and Molecular Toxicology
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Journal Article
Closed access
HAHaniyeh Abbasalipour
Haniyeh Abbasalipour
AMAkbar Hajizadeh Hajizadeh Moghaddam
Akbar Hajizadeh Hajizadeh Moghaddam
MRMojtaba Ranjbar
Mojtaba Ranjbar

3 November 2023 in Environmental Science and Pollution Research
Verified
Journal Article
Closed access
PDF file
MRMojtaba Ranjbar
Mojtaba Ranjbar
FKFatemeh Khakdan
Fatemeh Khakdan
Abazar GhorbaniAbazar Ghorbani
Abazar Ghorbani
MZMeisam Zargar
Meisam Zargar
Moxian ChenMoxian Chen
Moxian Chen