List a specific file in Powershell and assign it to variable

I am trying to fetch a file with extension .sln file. And assign it to a variable so that I can use it it later as a variable.

PS C:\My_Agent\_work\1\s> Get-Item *.sln


Directory: C:\My_Agent\_work\1\s


   Mode                LastWriteTime         Length Name
   ----                -------------         ------ ----
   -a----       15-06-2021     17:17           1739 project.sln

From this output I only want to fetch project.sln file and assign it to a variable in Powershell. How to achieve this.

>Solution :

$files = (Get-Item *.sln).name
$files