Menu

Search

Oscar Céspedes

Oscar Céspedes

Associate Professor of Physics, University of Leeds

Oscar joined the condensed matter group in August 2009 with the objective of leading innovative, multidisciplinary research in organic spintronics. His research pursuits a multidisciplinary approach to nanotechnology, aiming to discover new paradigms arising from the combination of spin, molecular materials and quantum effects.

After graduating from the Physics department at the University of Zaragoza (Spain), Oscar became an intern at the National Laboratory of Intense Magnetic Fields (LNCMP) in Toulouse (France) as a research Erasmus scholar. During this time, he studied the electron-magnon (spin wave) interaction by doing simulations and measurements of the magnetoresistance of 3d transition metals at high magnetic fields (5-60 T), successfully determining the physical parameters for the magnons and their interaction with electrons.

He later joined the Physics Department at Trinity College Dublin to do a PhD under the supervision of Prof. JMD Coey. Initially he worked in the European project MAGNOISE, working on noise measurements in half metallic films and nanostructures. The excellence of research in spintronics at Trinity College was then recognised by two €5M grants by Science Foundation Ireland: CINSE and CRANN. Oscar was involved in both projects, contributing with the discovery of a magnetic proximity effect, or contact induced magnetism in carbon nanotubes (reported here in Physics World and one of the top papers in 2004 in J. Phys. Cond. Matt.) and performing the first measurement of electrically induced domain wall displacement in magnetic oxides using focused ion beam patterned Fe3O4 and LSMO nanoconstrictions.

After his doctoral work, Oscar took a position as European Young Researcher at the Atomic Energy Commission of France (CEA-Saclay) within the European network DYNAMICS. Working with Dr. Michel Viret, Oscar measured the experimental proof of magnetism in atomic platinum chains and fabricated a p-Si / NiOx diode with rectifying, tuneable magnetoresistance and photovoltaic properties. His second postdoctoral position was at the Department of Applied Quantum Physics at Kyushu University (Fukuoka, Japan). His research during his first year granted him a fellowship by the Japan Society for the Promotion of Science fellow for the following two years. In Japan, Oscar worked in the effects of RF magnetic fields on iron cage proteins and the optical properties of magnetite nanoparticles. The most remarkable result was the first proof of a non-thermal biological effect of RF magnetic fields, with protein function and molecular dynamics altered after exposure to fields of order 1 MHz and 15 mT (refs [1,2] and reported here and here by EMF-Portal).

Recently, his research on an emergent magnetism at molecular interfaces featured in Nature (link), with a News report in their front website (link) and a News & Views article in the same journal issue reporting the findings (link). This research was also widely reported by other sources, such as Cosmos Magazine, Physics World, Chemistry World, Science News and others.

He now oversees the magnetisation, organic film and Raman spectroscopy experiments, and currently supervises or co-supervises three PhD students and one postdoc working on organic magnetic tunnel junctions, topological insulators, and spin transport in carbon nanotubes. His research interests also include the electron/spin-phonon interaction, the correlation of molecular dynamics with electronic transport and Raman spectroscopy in extreme conditions.


Grants

Before coming to Leeds, Oscar participated in two European, two Irish and two Japanese research projects as researcher, co-investigator or principal investigator. The total budget of these grants was over £10 million, and he contributed to the experimental work, application, reporting and management of these projects.

Oscar is the PI for a running project in magnetometry funded by the Engineering and Physical Sciences Research Council (EPSRC) of the UK, with a total budget of £600 k including capital costs. The objectives include the study of the spin-phonon interaction, novel methods of operation for organic transistors, measurement of magnetic materials under extreme conditions and topological insulators. Previously, he was the PI for two projects dealing with spin spectroscopy and topological insulators. Oscar is also Co-I in a European Marie Curie training network.

Low-carbon computing is needed to avoid a technological collapse

Mar 18, 2018 05:15 am UTC| Insights & Views Science

Human society has come to rely on superior gadgets being produced every year. Each year, new phones or laptops are faster, sleeker and have even more capabilities. However, electronics are rarely recycled, and the carbon...

1 

Economy

Brazilian Real likely to remain under downward pressure for the time being, says Commerzbank

The Brazilian real is expected to remain under downward pressure for the time being, according to the latest research report from Commerzbank. The arrest of former President Michel Temer and his Minister of Energy,...

NZ February trade balance beats market estimates; exports likely to continue growth over coming months, says ANZ Research

New Zealands trade balance for February was stronger than expected with exports above expectations and imports aligned with expectations. Lamb exports were at record levels while logs exports were also very strong. Exports...

JGB yields jump after investors shift to riskier assets following short-covering

The Japanese government bond yields jumped after investors shifted their interests toward riskier assets following a short-covering across all markets. The yield on the benchmark 10-year JGB note, which moves inversely...

USD/SGD likely to range trade between 1.345 and 1.362 in the weeks ahead, says Scotiabank

The USD/SGD currency pair is expected to range trade between 1.345 and 1.362 in the weeks ahead, on expectations that the US and China reach a trade deal in April or May finally, according to the latest research report...

Australian bond yields pare losses despite fall in U.S. peer amid global growth concerns

Australian government bond yields pared losses during Asian trading session Tuesday, as investors have largely shrugged-off the fall in the United States counterpart in the overnight session amid fears of global...

Politics

Melania Trump: Photo With Rumored Body Double Theory Was Photoshopped, Donald Trump Insists

An old rumor that United States First Lady Melania Trump is using a body double to accompany U.S. President Donald Trump was reignited this month. The POTUS was quick to dismiss the speculations insisting that the photo...

Politicians suing for defamation is usually a bad idea: here's why

When The Project host Waleed Aly began his editorial in the wake of the Christchurch massacre, he apologised that these wont be my best words. He was wrong. The YouTube clip of his poignant commentary has been viewed...

Melania Trump Did Not Let Ivanka Trump Take Over the White House East Wing, 'Kushner, Inc.' Author Alleges

Since United States President Donald Trump and his family occupied the White House, there have been several books released allegedly exposing the behind-the-scenes interactions among the first family and other Presidential...

Donald Trump 2019: Nancy Pelosi is Surprisingly Against His Impeachment and Here’s Why

The Democrats want Donald Trump to be impeached as soon as possible. They have been calling for the Congress to start the impeachment proceedings now but it appears that House Speaker Nancy Pelosi is not for it. In a...

Vladimir Putin 2019: Activist Jailed for Putting Up Russian President’s Gravestone

Vladimir Putins hater set up a fake gravestone in the middle of the Russian city, Naberezhnye Chelny, and the act landed him in jail. The fake gravestone featured the presidents picture and the year 1952-2019 was written...

Science

Cancer Cure: Medical Research Explains How Worms Are Causing Cancer and Can Potentially Cure Them

A recently published medical paper explains how a number of worm species are causing cancer to many people in underdeveloped countries. But, on the other hand, the researchers also explained how some worms might actually...

HIV/AIDS Cure: Third Patient Now in ‘Long-Term Remission’ From HIV Following Stem Cell Treatment

Hopes are up that stem cell treatment could eventually lead to the cure for human immunodeficiency virus (HIV) and acquired immunodeficiency syndrome (AIDS). A third HIV patient has reportedly been on remission from the...

Cancer Cure 2019: Possible Treatment for Cancer Caused by Severe Skin Disease Is Being Developed

A group of researchers is recently focused on coming up with a cure for skin cancer that developed from a severe skin disease called recessive dystrophic epidermolysis bullosa (RDEB). This medical progress is especially...

HIV/AIDS Cure 2019: Advancements in Treatments and Therapies Continue Now Help Patients Return to ‘Non-Frail State’

For decades, scientists and researchers have been working hard in finding the complete cure for human immunodeficiency virus (HIV) and acquired immunodeficiency syndrome (AIDS). While the ultimate cure for HIV/AIDS is not...

CRISPR gene editing: Why we need Slow Science

In a newly published article in Nature, a group of prominent scientists and ethicists have called for a moratorium on clinical research using CRISPR/Cas9 gene editing. This moratorium deals with the use of CRISPR/Cas9...

Technology

iOS 13 Release Date, Latest News: Features to be Unveiled in June; OS Update Goes Live September

Apples upcoming operating system update for iPhones and iPads, the iOS 13, will most likely be unveiled in June along with its top new features and improvements. However, fans might have to wait until September before...

AirPods 2 Latest News, Update: Orders of Apple’s Second-Generation Wireless Earphones to Arrive This Week

Apple has now begun shipping the AirPods 2 after months of speculation that the next-gen wireless earphones will be coming out this March. So far, the reviews are leaning a bit on the negative side as most of the rumored...

‘Jump Force’ DLC, Updates, Features: Free Costumes Dropping in April; New Playable Characters Follow in May

Within two months since the official release of Jump Force, fans can expect new sets of contents coming to the game. By April, developers will drop free costumes to be followed by some paid downloadable contents. These...

‘Final Fantasy XIV: Shadowbringers’ Release Date, Features: Will Square Enix Add a Healer Class Before July Launch?

Final Fantasy XIV: Shadowbringers is still a few months away from its official launch. Square Enix has been revealing more gameplay details recently, but not exactly what fans wanted to hear. Just last week, the...

‘World of Warcraft Classic’ Release Date, Update: Community Ecstatic After Blizzard Listened to Players Regarding Potential Loot Abuse

As summer draws to a close, players who have been patiently waiting for World of Warcraft Classic are getting restless by the day. Fortunately, Blizzard has done a good job at keeping the community updated and listening to...
  • ET PRO
  • Market Data

Market-moving news and views, 24 hours a day >

March 26 14:30 UTC Released

USTexas Serv Sect Outlook

Actual

-4.4 bln

Forecast

Previous

2 bln

March 26 14:30 UTC Released

USDallas Fed Services Revenues

Actual

12.8 %

Forecast

Previous

19.2 %

January 31 00:00 UTC 604337604337m

ARAnnual Primary Balance*

Actual

Forecast

2016 bln ARS

Previous

Bln AR bln ARS

January 31 00:00 UTC 604337604337m

ARAnnual Primary Balance*

Actual

Forecast

2016 bln ARS

Previous

Bln AR bln ARS

January 22 19:00 UTC 616157616157m

ARTrade Balance

Actual

Forecast

Previous

-1541 %

January 31 00:00 UTC 604337604337m

ARAnnual Primary Balance*

Actual

Forecast

2016 bln ARS

Previous

Bln AR bln ARS

January 22 19:00 UTC 616157616157m

ARTrade Balance

Actual

Forecast

Previous

-1541 %

January 31 00:00 UTC 604337604337m

ARAnnual Primary Balance*

Actual

Forecast

2016 bln ARS

Previous

Bln AR bln ARS

January 31 00:00 UTC 604337604337m

ARAnnual Primary Balance*

Actual

Forecast

2016 bln ARS

Previous

Bln AR bln ARS

January 31 00:00 UTC 604337604337m

ARAnnual Primary Balance*

Actual

Forecast

2016 bln ARS

Previous

Bln AR bln ARS

Close

Welcome to EconoTimes

Sign up for daily updates for the most important
stories unfolding in the global economy.