[Orgmode] How to write special LaTeX symbols

[Xin Shi]

Hello experts,

I want to export org file to PDF using LaTeX for certain special symbols. For example, in the plain LaTeX: 

Shr\"odinger   will give the o with two dots on top. Notice that the " is a double quotation mark. 

However, when org translate that into LaTeX, it will become two single quotation mark! \'' (it's very hard to see the difference, but the pdf version will see the wrong result).

Could someone tell me how to do that?

Thanks!

Xin