Retraction Watch

Tracking retractions as a window into the scientific process

Archive for the ‘rk singhal’ Category

Enthusiastic retraction and retracted correction mark loss of researcher’s fourth and fifth papers

with 2 comments

IJMPBHere’s a physics retraction whose use of an exclamation point — the only one we’ve ever seen in a retraction notice! — makes the editors’ exasperation palpable.

It’s also the the fourth retraction for R. K. Singhal, of the University of Rajasthan, Jaipur, India. Behold the notice for “Magnetic behavior of functionally modified spinel Ni0.4Ca0.6Fe2O4 nanoferrite,” in the International Journal of Modern Physics B: Read the rest of this entry »

Physicists with retraction for a “pattern that was unphysical” lose another for manipulation

with 9 comments

journal of applied physicsIn September, we wrote about the retraction of a physics paper for “a pattern that was unphysical.”

The team, whose first author, R.K. Singhal refused to sign the notice, has had another paper retracted, this one in the Journal of Applied Physics. Here’s the notice for “Study of electronic structure and magnetization correlations in hydrogenated and vacuum annealed Ni doped ZnO:” Read the rest of this entry »

Did article on doped indium contain a doped image?

with 6 comments

asscoverApplied Surface Science has retracted a 2010 paper by a group of researchers from India and Brazil because one of the figures in the article was suspect.

The paper was titled “Effect of hydrogenation vs. re-heating on intrinsic magnetization of Co doped In2O3.”

Read the rest of this entry »

That’ll do it: Physics paper retracted for a “pattern that is unphysical”

with 8 comments

j phys dLast December, we brought you the story of a math paper that was retracted because it made “no sense mathematically.” Today, we have that retraction’s cousin: A physics paper retracted because some of the data are “unphysical.”

Here’s the notice for “Room temperature ferromagnetism in pure and Co- and Fe-doped CeO2 dilute magnetic oxide: effect of oxygen vacancies and cation valence,” which was published in April 2011 in the Journal of Physics D: Applied Physics: Read the rest of this entry »