Most ordinary chondrites have lower coercivity than their main constituent ferromagnetic phases (\‍‍‍cite{gattacceca2003magnetic}). Different meteorites have significantly different magnetic properties. The coercivity of different meteorite classes is 1.78 mT for H chondrites, 5.62 mT for L chondrites and 36.40 mT  for LL chondrites.  This is true that LL chondrites have higher coercivity than L and H chondrites, because of increasing Fe content of the silicates from H to LL chondrites (\‍‍‍‍cite{gattacceca2003magnetic}). 


the bibtex:

  title={Magnetic properties of a freshly fallen LL ordinary chondrite: the Bensour meteorite},
  author={Gattacceca, J{\'e}r{\^o}me and Rochette, Pierre and Bourot-Denise, Mich{\`e}le},
  journal={Physics of the Earth and Planetary Interiors},

the error:

! Undefined control sequence.
l.296 ...main constituent ferromagnetic phases (\�
  • 2
    You have some weird invisible characters (zero-width joiners) in (\‍‍‍cite{gattacceca2003magnetic}) specifically between the backslash and the c of cite. Delete that bit and re-type it. – moewe Feb 11 at 13:54
  • @moewe I did. But still the error exists. – Yasamin Feb 11 at 13:55
  • Did you do that for all occurrences of the error? In your example there are two \cites and both contain invisible characters: The first three, the second four. Copy and paste your text to w3c.github.io/xml-entities/unicode-names.html and search for U+200d or zero width. (edit: The \end{document} also contains unwanted zero-width joiners.) – moewe Feb 11 at 13:57
  • 1
    To get rid of the weird character �, as @moewe points out, you can (1) "Cut" the text ferromagnetic phases (\‍‍‍cite{gattacceca2003magnetic}).` from your line 296 of your tex file, (2) "Paste" it on some minimal text editor like Notepad in Windows (or browser address/search bar), (3) remove any unusual character like � or anything that you between ` and cite`, (4) "Copy" that text again, and (5) "Paste" it back to your tex file. In that way you will be able to see what went wrong... and hopefully surpass that error. – Partha D. Feb 11 at 14:16

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